December 20/21st:
The Lunar Eclipse of 2010 is thankfully visible
tonight. Here are my observations:
11:30pm - The winds are moderate and the sky is partly cloudy. The full moon is
briefly obscured by fast moving translucent clouds. After a few minutes of
cloud cover the full disk is exposed and displays about 1/8 of its surface dimmed
by earth’s shadow.
12:50am – The sky near the
moon is devoid of clouds. The moon is nearly at zenith and exhibits a bright
pale orange limb on the western side while the remaining 80% is a dusky
grey/orange. Orion, Taurus and Canis Major are fully visible to
the south, below the moon
1:20am – About 5% in from the edge of the disk is
still pretty bright orange around roughly ¾’s of the disk, the southern facing
quadrant edge and the majority of the surface are dull grey/orange. Temp for Boise at 1:25am says 27°(F). Wind is calm and not
having any impact at this time.
1:45am – The eastern side
is more brightly lit as it moves closer to the penumbra.
2:05am – The eastern side is a bright thin white
crescent while the majority is a grey gibbous shape.
2:15am – The white crescent
grows and the shadow has lost all orange tint. It doesn’t look exactly like a
normal lunar phase crescent as the arc is more shallow
than during the normal lunar cycle. I didn’t know if I’d notice this during the
live event or not, it was pretty cool to see.
Serge got up and observed it during its orange phase
with me. It was cool sharing this with him. I hope he remembers it in the
morning.
October 14th:
Lunar Observing from the Driveway
Well last night’s observing went very
well. I set up my 120mm scope in the driveway at about 8:30 and showed my boys
the moon shortly thereafter. The sky was clear and the air was just a bit crisp
and calm. We observed the first quarter moon with my 32mm eyepiece (28x) and this was fine for the boys but it wouldn’t reveal
the craters I was intent on finding. After I shooed the boys inside I switched
in the 10mm (90x) and proceeded to hunt down more
objects from the AL Lunar Club list.
At 7 days past new, some of the objects on the ‘~4
days old’ binocular list were tough to see but I found all but the crater Vindelinus. Petavius, which is
moderate in size and in the low South East quadrant, was very washed out this
far past new but I did finally discern it.
Also of note in the South East quadrant was the Theophilus –Cyrillus –Catarina chain near Mare Nectaris,
very distinctive. Closer to the terminator was the Albategnius-Hipparchus
complex (pictured at right). The shadows made these very prominent
tonight.
In the North East quadrant craters Hercules and
Atlas were pretty washed out and I’d like to re-observe them closer to new. Aristoteles and Eudoxus were
quite nice. My favorite though was passage way between Mare Serenitatis
and Mare Imbrium.
The shadows cast on the floor of Mare Imbrium
by the northern Montes Caucuses and Southern Montes Apenninus
really made a striking image. The contrast of the jagged mountains and
comparatively smooth floor was so striking. The very eastern edges of the
crater rims of Aristillus and Autolycus
were just visible, forming trim crescents. Their crater floors were completely
hidden in darkness.
I was so focused on the first two pages of targets
I’d printed out, I failed to observe anything on my third page, which contained
the ‘telescope objects’ list. Well now I’ve got another excuse to do more
observing. I wrapped up for the night
and was back in the house by 9:15.
September 19th: Deep Sky
Scouting Report
Last Sunday I loaded the kids
and Tanya into the truck for 'an adventure'. My goal was to drive to a
potential DARK deep sky observing site I heard about quite a long
while back at a meeting and then again recently at ISP. The site is known as
Pilot Peak. I heard it was a former fire observation post north of Idaho City
at
an altitude of around 8000 feet. Google showed it to be roughly 17 miles and 40
minutes
north of Idaho City at an elevation of around 8100' ASL. The satellite
imagery showed a clear hilltop, devoid of a
building and only a couple trees, with a road right to the top.
Well about 13 miles up Hwy 21 from Idaho City one
will see the turn off to this location. The
last 4 miles of unimproved dirt/rocky road was very bumpy and
rough. I'd guess it was about an 8% grade, single
lane path up the side of a steep mountain.
When a 1 ton pick up, loaded with firewood was
spotted coming
down, it took some backing down the hill to find
an appropriate passing zone for him. I was
in 4 wheel drive the whole way up and down this 4 mile stretch of
"road".
We never made it to the end. I stopped at a wide
clearing about a half mile away, where I
could safely turn around. I could see the fire observation
building across a shallow valley. It was
surrounded by medium height pine trees and
featured a large antennae and solar panel array
protruding from the side of the building. So
continuing on, to what now appeared to be a
tree covered, building encrusted hilltop, seemed rather pointless.
The view from this turn around spot was awesome.
We parked long enough to eat our pic-nic lunch. The boys got out and ran around and did some
exploring. It
had about 90 to 120 degrees of clear horizon and
an awesome panorama of forested mountain tops
to the S/SW. It was stunning. The wind occasionally gusted to no
more than 10 miles an hour but it was enough to
further erode my opinion of this location
as a possible observing site.
The site might be suitable for my refractor but I
wouldn't want to take my 16" dob up there
due to the roughness of the road. Also any wind would be quite cold
and make bringing my weather vane of a dob quite pointless as well. The site would require an overnight stay as I would not attempt
to go down that hillside
at night. At one point on the way down I could see
the paved snaking path of Hwy 21, below me
I guess between 500 and 1000 feet down. It was one of those fine
optical illusions where there appeared to be
nothing between the highway and the road I
was on.
For those that have mentioned observing from this
site to me, I wish you the best with it. It
was a little too back-country and didn't seem to offer a big
enough unobstructed horizon for my tastes. In all
fairness I really should have finished
driving over to the fire post just to see what it was like, but I was
at a good turn around spot and those where very
rare on this road.
This 'adventure' trip was a lot of fun all in all.
The oft repeated chorus of "we're
going to die" from the back seat was really entertaining on the way up. I
remember those kinds of moments riding with my dad
on our family rockhounding trips of my youth. When we got back to Idaho City we
stopped and had ice cream
and the terror of the drive up was instantly
forgotten.
September 10th and 11th: Idaho Star Party
2010
This year’s Idaho Star
Party was a GREAT success. First off there was Atilla
Danko. The man who is responsible
for Clear Sky Charts. Is that man funny or what! His presentation on
telescope performance on Friday was really good. His story about how clear sky
chart came to be and how it is operated was really interesting too.
Then there were the night
skies. Friday night was windless, warm till 11, and I think perfectly free of
clouds. I rated it ‘seeing 4, transparency 4’ all night long. Saturday night
was nearly the same although I rated it ‘seeing 3, transparency 4’ as it was
not quite as good as Friday’s skies.
My (overly ambitious)
goal for the weekend was to observe enough Herschel 400 targets to get my first
100 observations completed. I would have needed to concentrate and focus very
intently on this objective to achieve it and the ISP is not the place for that.
I observed 9 Herschel objects this weekend bringing my total H4C count to 78,
only 22 more to go for the first 100. But I also observed some other fun
targets that weren’t on the list. Chief among those objects was NGC 7293 (the
Helix Nebula) and the Pegasus galaxy cluster (centered on NGC 7619).
On Friday night I started
out in Sagittarius. I found NGC 6645, an open cluster near the border with Scutum. Then I moved on to NGC 6568, another open cluster
in Sag, above M8. Both were moderate size and not too hard to find. I spent
some time unsuccessfully looking for other OCL’s in Sagittarius. At about 11:30
I moved to Aquarius as I really wanted to see the Helix Nebula (NGC 7293) even
though it wasn’t on my list. It sure is interesting to look at. It is very
faint at first. I had to let my eyes adjust and relax to see it. The twin rings
looked almost blue to me. While I was in the neighborhood I picked off all
three galaxies from the Herschel list in Aquarius. They were not too difficult
to find, due to good nearby guide stars, but the galaxies were faint (mag 11 or
so) and small ( about 4’x3’). I should have at least
tried for the planetary nebula in Aquarius but alas I didn’t. I could have
finished of the whole target list in that constellation if I’d found it. Oh
well. That was pretty much it for Friday night.
Saturday was
busy. I went into town and bought a new air mattress as mine was punctured
somehow. Just before the Star-B-Q I was awarded the Mary Schneider volunteer of
the year award. I am very honored and feel that it
should have gone to someone else like Randy or Rhonda but club officers aren’t
eligible. I am honored to be recognized for my efforts. The star-b-q was really
good this year. The Costco burgers were really tasty. During the door prizes I
won an Orion Sirius 26mm plossl. I gave this to Andi to round out her collection of EP’s. I’m really
looking to move to 2” eyepieces in the future and have a unit in this range
already. So it made sense to give it to someone who could use it.
As soon as it was dark I
moved to Bill and John’s campsite and proceeded to learn how to collimate,
calibrate and operate OB1, Bills’ 20” obsession with NGC Max DSC’s. It was
really cool. I nailed 4 globular clusters in Sagittarius in about an hour. NGC
6638 is right near the top teapot star and M22.
NGC 6553 is near M8 and its similarly sized neighbor NGC 6544. NGC 6624
is very near the star Kaus Meridionalis,
which marks right hand top of the tea pot. The last
cluster of the evening was NGC 6569. This is located near the center of the tea
pot’s spout. None of these were particularly stunning and in fact the last two
I observed were not much more than grey circles. I saw very little detail in
these last two at all. But they were getting low on the horizon by that point.
I took a break and went and spoke with Randy and Steve for a bit and when I
returned Bill and another gentleman who really knew the sky were working with
some visiting campers, showing them a few highlights. After a bit of this I
took over and pointed at The Helix for the second time this weekend but for the
first time in a 20”. It was only a little more detailed than in my 16”. I
shared this view with the group then moved on to NGC 7619. This is the focal
point of the Pegasus Galaxy cluster, comprised of NGC 7619, 7626, 7623, 7617,
7615, 7612, 7611, 7631, and possibly some smaller fainter elements without NGC
numbers. I think I only recognized NGC 7626, 7619, 7623 and 7617, as galactic
elements. I really need a computer in the field. I need a computer worse than I
need a camera. This cluster group was
shared with a group as well.
ISP 2010 was very
rewarding. I look forward to the 2011 event.
September 4th: prelude to ISP
Well the Idaho Star Party
is next weekend but the weather was good last night and I’ve learned you take
it when you get it. The winds were supposed to be up to about 7 miles an hour
and my 16” doesn’t do well in wind so I hauled my 120mm Refractor out to our
common Dedication Point observing location. The event was well attended, about 20 friends
and 12 other scopes were out to enjoy some early fall skies. The biggest scope
on the field was a nice 18” Obsession and ranged down to a 4” refractor I
think. The skies seemed more light polluted than I
remember them but I guess OSP will do that to you. Plus I was looking north
(towards Boise and Nampa) all night. I observed 7 Hershel 400 objects in
Cassiopeia (of 15), all open clusters. The highlights were NGC 663, a nice
large cluster centered below the western most stars of Cassiopeia, Ruchbah and Segin, and NGC 457
(the ET Cluster), near Ruchbah. The night was warm
and calm until about 10:30 when it began to cool. At around 11:30 the wind
began picking up and everyone was loading up by midnight.
Well as of this writing
I’ve completed my requirements for the binocular Messier club award. I’ve
observed or re- observed 73 Herschel 400 objects, I’m about a third of the way
through the lunar club targets and I’ve begun the northern constellation hunter
club. I hope to observe about 30 more targets from the Herschel list next
weekend. I’ve created an observation list of about 80 valid targets for next
weekend so that should keep me busy.
August 12th through 14th – Oregon Star
Party
We left Meridian at about 10:45am on Thursday
morning (the 12th). We drove to the Oregon Star Party following I-84 to Highway
26. We stayed on 26 until we got to the forest service road that took us to the
backwoods location for OSP. We paid our registration fees at around 5pm local
time, including a stop for lunch it was about a 7 hour drive. We did a brief
drive around of the whole site and settled on a spot close to the center – with
nearby food and porta potties. I was amazed by the
number of people. I later heard there were over 700 of us out there. The folks
making this comment were impressed with this turn out, as the other big
regional SP (at table mountain, in Wa.)
was running the same weekend.
A panorama of the
observing field to the east of our campsite
A panorama of the
northern observing field
We set up a tent and then I set up my telescope. The entire location is
basically clear but covered with red basalt stones (and related red dusty soil)
and short stunted sage bushes. The site is basically the crown of a hill with a
few scattered pine trees near its edges but good clear horizon views for most
of the full 360°. Our camping spot was quite rocky. The next day I walked
around a bit and found a better place for next time.
Our neighbor to the east was named Doug. He had a 10" orion dob and was doing a lot of volunteer work with
OSP. He was quite talkative and friendly. To the west was Steve, a quiet man
with a 14.5" GOTO dob, I can't remember the brand
but it was a very good performer. I missed Tom Clark's talk "Star Parties Across the US" due to our arrival time and need to set
up. I spoke with him the next day however.
Observing on Thursday the 12th:
The night of the 12th was AMAZING. Seeing was a 5 of 5 and transparency
was a 5 of 5. I was very tired from the previous short night of sleep combined
with all the driving and set up tonight. I was still up till 1am though. I
found the faint, spindle shaped galaxy NGC 891 in Andromeda fairly quickly. NGC
404 –Mirach's Ghost (a small galaxy near the bright
star of Mirach in Andromeda) was also easy to find.
It was a little larger in diameter than 404 and looked more like an elliptical
to me. Finally I turned to M110, the big satellite galaxy of M32. I had this on
my `unobserved list' of H400 objects. Even though I've seen it many times I
moved over to it anyway – it was handy. I also found NGC 7686, an open cluster
near the northern constellation boundary of Andromeda. I spent a long time
looking for this and verifying that I found it. I then moved down to M33 and in
the process observed NGC 752, the huge open cluster dominated by 9th and 10th
magnitude stars with many fine smaller, fainter points in the background. M33
was a faint glow. It has always appeared very faint to me – even under the best
conditions, but tonight I noticed several bright spots near the center and some
of the arm structure further out. It was a really fine night.
After my time in Andromeda I moved to Sagittarius. I observed some old
favorites like M22 and M8 (really good dust lane detail tonight) then picked
off NGC 6544, the small globular cluster near M8. By this point it was nearing
1am and I called it quits for the night.
August 13th:
Tent camping for me means waking with the sunrise, so I still didn't get enough
sleep. There were many speakers I wanted to hear today as well participate in
Mel Bartel's Telescope walkabout. First up was the
ATM forum hosted by Russ Genet. He is co-author of The
Alt-Az Initiative: Telescope, Mirror, &
Instrument Developments, a book about modern developments in the ATM field. I
arrived late and sat in on most of a presentation by Mel Bartels. He described
the process of grinding a 13" F3 meniscus mirror out of regular table
glass. This mirror was no more than a ½" thick and very stable as both the
mirrored surface and the backside were ground to a parabolic shape – front
being a concave arc and back being convex. Imagine a big glass contact lens. He
described how its uniform shape makes it very strong and how it needed a less
complex mirror cell due to this shape and lower weight. He reasoned that if
we're going to cool mirrors with fans, why spend all that money on low
expansion substrates like pyrex
or more exotic substances and just use standard glass. This 13" experiment
of his speaks for itself. His talk was followed by an ATM panel which discussed
modern trends in amateur telescope making, principally how to overcome the
challenges of 1 meter or bigger amateur scopes. It was pretty interesting to
me.
Mel Bartel’s 13” F3 telescope
After this
we did the Telescope Walkabout. I had entered my scope for this event and a
large crowd gathered in my camp site and I told the story of how I built my
scope and fielded a few questions and received many complements. I met Steve
Swayze, who ground my mirror. He came up and introduced himself right after my
presentation during the walkabout. There were many really cool scopes at this
event. I'll include pictures of some of them soon. My favorite was a small
string scope built by a college student named Nate. He finished the spider the
morning he left for OSP. His scope was an engineering class project. He was a
very good story teller.
4” Brass Telescope,
Dan Grey’s 28” String Scope, & a 16” Lightbridge
mounted on a custom split ring
Some
of the home made dobs near Nate Currier’s site
Another dob near Nat Currier’s site, College student Nate w/ his 8”
string scope “wendy”, a nice remount of a coulter 13”
A small 2 stage
string scope, a 12” split ring, the new OSP tree
In the late
afternoon I spoke with Tom Clark about his presentation "Star Parties in
the US". I was hoping to get a sense of how our ISP compares with other
events across the country. I can sum up his thoughts by simply saying
"star parties are for looking at stars at dark sky sites." He doesn't
pay any attention to the events or speakers or dinners or programs. He argues
that a star party, to be successful and attract nationwide participants, must
have great skies. For those that don't know who this guy is, Tom is the retired
owner of Tectron Telescopes, former publisher of
Amateur Astronomy Magazine, and author of "The Modern Dobsonian".
He hails from Florida and lives in Cheifland during
the fall and winter (where uses a 42" dob). He
and his wife travel the country the other 6 months of the year. He has been
building telescopes, writing about and publishing astronomy related
information, and actively touring the country for pristine skies for many
years. I found him to be very opinionated and a nice guy. He tells good
stories.
At 6pm I attended David Howarth's presentation
on amateur spectroscopy. He built his own spectrometer out of old camera
bodies, a piece of DVD ROM disc as the resolution grating and some cardboard.
He showed us his results and I was impressed. He went on to build another unit
out of off the shelf components that performed even better. I have thought
about learning more about spectroscopy and possibly setting up a spectroscope
for students to use. I think if we can teach more about this at the under-grad
and HS level we will better prepare students for future astronomy studies later
in their lives.
At 7pm I attended Shane Larson's presentation on galaxy formation. He is an
assistant prof at Utah State University. He is very animated and a fine
presenter. He is studying galaxy formation and gravitational wave astrophysics.
Observing on Friday the 13th:
I was very tired still and did not make
time to re-collimate my scope before I began this evening.
The southern skies were VERY twinkly. Seeing was a mediocre 3 of 5 but
transparency remained extraordinary at 5 of 5. The wind was a real problem
tonight. My scope is so fluid in its motion the strong winds made remaining on
a found object difficult. These folks are serious about light. There were
probably 15 scopes and observers within 100 feet of me and I only saw 4 red
lights. I was `noisy' with my red light as I would point it at the ground to
avoid the rocks between my scope and my table. No one said anything but I felt
bad. My neighbor Steve, didn't use a flash light at
all. I think these folks were observing, not logging things. If they were using
flashlights I didn't notice them doing so, and I looked for them.
Steve's 14.5" scope had a really cool device, a 2", 3 position, filter slide. He had mounted a UHC and OIII filter in two of
the possible holders and thus I quickly and easily observed parts of the veil
nebula (NGC 6960) in unfiltered mode and through the two filters. This is the
way to go! It was really cool. I really see the value of these two filters now.
My first impressions of filtered views were that they overly darkend the image and I didn't like what I saw but I'm
beginning to change my opinion.
Doug was
not as experienced an observer as I was so I helped him find M22 in his scope.
He only had a telrad as a finder. When I was close I
switched to his current eyepiece and noticed it had HUGE AFOV. I could roll my
head around and not run out of stars at all. It was like the EP had no edge.
When I mentioned this characteristic to him he said `yeah, those Ethos sure are nice huh?' It was my first look through a
10mm Ethos, it was impressive. The field reminded me of what I see through my
9mm Nagler in terms of flatness of field, great
contrast, and sharpness of stars. It's just that it seemed to have no edge!
I spent most of my brief observing time
this night on familiar friends. I intended to pick off more H400 objects
especially in Sagittarius, But this was not to be with
the wind and the poor seeing to the south, finally my counter weight came apart
and without it I can't target low altitude objects. And I couldn't fix it
without a light. So M51 was totally stunning as were open clusters in
Cassiopeia and Perseus. I wanted to look at NGC 7331 in Pegasus but the wind
was too strong. With conditions working against me I called it a night at a
little before midnight.
Saturday August 14th:
Tanya and I discussed the plans and
objectives for the day. I really only wanted to stay for a presentation on the
LIGO project (laser interferometer gravitational wave observatory) but it
wasn't on until 7pm that night. We discussed the merits of staying till the
presentation was over and then leaving and/or staying one more night. In the
end we decided to pack it in and head to Washington a day early to pick up our
kids from their grandma's house. A night in a bed, off the rocks (we even had
an air mattress) won out over another night of possible great observing. Guess
I learned where my priorities lie. We broke camp and packed up. I sat with Mel
Bartels and Tom Clark for another 30 minutes and discussed amateur and
professional telescope building and then Tanya and I headed for Olympia.
Afterthoughts:
I would like to do this again, I achieved all my goals for the trip. But I honestly
have more fun observing with my friends from Idaho locations. The skies were
truly dark. There was no perceptible light dome in any direction I could
detect. This makes it darker even than the Burns junction site (but only just a
little bit) but it's further away by four more hours. It's noticeably less
light polluted than any location I've observed from in Idaho. The skies were no
better than great nights at Reynolds Creek, so this was just luck,
it could have been more windy and/or cloudy and ruined the nights. The light
discipline was quite interesting to work in. I've concluded that I'm not that
disciplined. I like to be able to see enough not to trip over rocks and write
my observation notes down. Meeting Steve Swayze, and
Mel Bartels again, and listening to hard core ATMers
was a real treat, I'd like to do that again. I observed 6 more H400 targets
(another 1.5% of the list) and many old favorites under awesome conditions and
that was very good too.
August 11th, Alice Pittenger
Girl Scout Camp
I drove up to McCall,
arriving around 4pm. I ate at My Fathers Place (good hamburgers and shakes) and
then drove out to the Alice Pittenger Girl Scout
Camp. There were 19 campers and about 9 staff. From 7:30 to about 9:15 we
talked about different kinds of telescopes and what can be seen with them. The
girls were very attentive and asked lots of questions. About 9:45 we gathered
on the shore near the swimming dock (where I had set up my 120mm telescope) and
we then observed the globular cluster M22 in Sagittarius, the open cluster M7
in Scorpius, and then the nebula/open cluster M8 in
Sagittarius. We did a constellation tour of what we could see to the south. The
girls were getting cold and tired and we broke up around 11pm. I was hoping
they’d stay up late enough to show them Jupiter, which just broke the horizon
around 11:15 but by then I was packing up and the girls were already back at
their cabins.
This was a really good
experience.
April 17th, Saturday, BAS and BSU Star Party
The skies were rather cloudy
most of the day so I was skeptical of tonight’s opportunity but Clear Sky
Charts said it would be lousy from 8 to until about 10 and then get
progressively better until about midnight and stay good until early in the
morning. This is in fact exactly what happened. By about 11pm the skies
stabilized to 3/5 for both seeing and transparency.
I arrived at Dedication
Point at about 7pm to find Randy and Jeff already there. I began setting up my
16 inch reflector, the Cosmos 406. The skies were mostly overcast with only
small patches of blue to the south and southwest. My set up pace was leisurely
and by the time I was ready to begin aligning my finders with the primary view,
the thin waxing crescent moon was easily discernable in the high southwestern sky.
Mare Fecunditatis and Mare Crisium
were visible along with beautiful crater chains in the highlands at 75x (30mm Ultima – low power).
Skies were quite turbulent but clearing of clouds. I’d say they were 2/5 for
seeing and 3/5 for transparency at this time (around 8:30pm).
Shortly after my 80mm
finder was aligned with the image in my primary, Venus was also clearly visible
naked eye. At 124x (18mm Ultima – medium power) the
surface was nearly completely round – very gibbous. I used Venus to fine tune
my alignments with this eyepiece. The skies remained turbulent but continued to
clear. More club members were arriving
by the minute. When the students from BSU were arriving in force, there were
probably 13 to 15 scopes there. I
returned to the moon and showed it to students at both medium and low power
while the skies transitioned from civil to nautical twilight (9 to 9:30).
My next target was
Saturn. It was displayed well at 124x in moments of
improving seeing. If skies had been perfect this is what should have been
visible:
Image
produced with Skytools 3.0
As it was not ‘perfect’
we could easily see the rings and occasional surface banding. Titan and either
Rhea or Hyperion were clearly discernableon the right
and left of the rings. I’m guessing we were seeing Rhea as it is 10th
magnitude, while Hyperion is 14th. I’m sure we saw Iapetus (mag. 11) but given its position far off the ring
plane I would have mistaken it for a star. I thought I saw Dione
in moments of clarity but I couldn’t repeatedly make it out consistently. Irwin
said he could see one of the closer moons as well. The skies were still pretty
turbulent and light from the moon and twilight conditions complicated things.
After showing off Saturn
to a large number of students I turned for a while to the open cluster M41 in
the Big Dog. It was low and allowed viewers (and me) to stand on the ground for
a while. It’s also bright and easy to find. Due to its proximity to the horizon
I could see quite a bit of turbulence in the 75x view, but many of the students
expressed delight with its view.
Next in the eyepiece were
the galaxies M65 and M66 in Leo. At 75x they both fit
in the field of view. The skies were improving by this point and I showed this to many observers. Retaining the low power eyepiece, I then
turned to M86, M84 and NGC4388. M86 is the biggest and brightest of the three
at almost 10th magnitude, followed by M84 at 10th and
NGC4388 at 12th magnitude. With averted vision I could clearly make
out the tiny 13th magnitude NGC 4387 right in the center of the
triangle formed by its larger neighbors. Students needed to be coached to see
the dimmer of the three bigger galaxies (NGC 4388) but many reported they could
see it. The moon, while still up, was much lower in the sky by this point in
time and many of the public attendees had left or were leaving. It was around
11:30pm. But the skies were really stabilizing now and the temperature,
although cooling, was still comfortable.
I spent a good deal of
time looking for the edge on galaxy NGC 4565 (the Needle) but couldn’t find it.
In review the next morning I know I was in the right area and very likely had
the 10th magnitude galaxy in my finder at least a couple of times
but I could not pick it out. Joe came over and directed my scope to M104 (the
Sombrero) and I looked at this at both 75x and 125x for a long time, in fact
the moon had just set as I stopped to visit with others for a while. I have not
observed M104 for this long or this well before. At 125x
it was really superb. There was a definite inky darkness to one side of the
flat bright band of the disk and a distinct bright bulge in the center.
This image captures the
darkness on one side of the disk, and aside from the blurring caused by poor
tracking, pretty closely matches what I saw at 124x :
Image from Tim
Cline (deepspaceimages.org)
This dark band is the dust lane at the perimeter of the
galaxies disk. I had not seen it visually this clearly before. This dust lane
is more pronounced and clear in the high res photo’s
from Hubble:
Image from NASAImages.org [edited to
match my view]
As the moon was setting
it became chilly, and expecting it to get worse I decided to call it a night.
By the time I was packed up I’d swear it had gotten warmer. Part of me wanted
to stay and hunt Herschel 400 objects in Virgo. The skies were now perfect for
it but I was getting quite tired as it was around 12:30 (0:30) in the morning.
I’ll probably regret passing up the opportunity to go galaxy hunting in Virgo
but I had a great night with nice people to share views with and good friends
to talk and share with too.
April 9th, Friday Night, Messier Marathon 2010
I drove down to Bruneau Dunes State Park by about
6:30pm. I set up with Randy Holst (TV Genesis) and Steve Bell (TV102). I saw
Barb and Irwin as well as few other familiar and new faces. The skies were
clear but a little windy on the drive down but the ground winds died and sparse
clouds were forming by 8:30pm. Just a little after sundown, about 8:40pm, I
focused on Venus and with the help of a new guy, whose name I never learned, I
found Mercury about 4 ° to the right of Venus, a moderately close conjunction.
When I found it, Mercury was invisible naked eye, but within 15 minutes it was
clearly visible.
I did not attend the Messier Marathon with
any intention of hunting down all the Messier objects tonight. My goal was to
observe enough unlogged objects to qualify for my Binocular Messier Club award.
I didn’t plan very carefully so I didn’t know precisely how many I needed. I
thought I only needed 6, but on reviewing my logs the next day I missed it by
one. I also had intentions of working the AL Binocular Club List tonight.
From 9:00pmto around 12:00am the skies were
pretty average for steadiness, despite the rapidly forming and moving partial
clouds. The transparency was opaque to
average depending on the part of the sky one looked at. For observing purposes
I was usually aiming at targets in 2 of 5 or 3 of 5 skies. The winds were not a
factor before midnight. At 4:30am to 5:30am it was very cold (around 25°), and
winds were light (< 5mph) but they made staying out longer in the dark
morning, an uncomfortable choice. The transparency was much worse in the parts
of the sky I wanted to look at in the morning observing attempt.
I picked out the open clusters M36/M38 and
M35 around 9:40 in my 11x70’s. I saw M104 through Steve’s 102 a little after
that. At 10:05 I focused my binoculars on the huge galaxy M101 in Ursa Major and could just make out its presence with direct
vision. By 10:25 I had moved over to Collinder 256
(AL binocular list #1 for the night) in Coma Berenices.
This is the faint naked eye, ‘hair’ cluster in Bernice’s Hair. Irwin pulled
M44, the big beehive cluster in Cancer, into my 11x70’s at 10:40. I saw the
awesome whirlpool galaxy complex, M51, through Randy’s Genesis. At some point
later in the night I started to move to it with my binoculars but by this point
it was uncomfortably high in altitude so I didn’t see it through my binoculars.
At about 10:50 the skies had cleared up to the west again so I went back to Auriga and observed the open clusters M36, M38 and NGC 1893
(AL binocular list item #2). These all fit in the same field of view in my
11x70’s and along with the brighter foreground stars made for a very nice
image. I also went back to the right foot of Gemini, to re-observe M35 and Collinder 89. This is a 1° grouping of 7 magnitude 6 to 7
stars and another 10 or so in the magnitude 8 to 9 range. Around 11:30pm I focused on the globular
clusters M13 and M92 in Hercules. We
broke off around midnight. I took a nap until 4:30am.
At 4:30 I woke up and set my binoculars back
up. The skies were considerably more cloudy, the wind
was noticeable now, and wow, was it cold. The traditional summer skies were lit
up across the sky though, with Lyra and Cygnus high
in the east, Scorpius dominating the south. To the
north Cassiopeia was now on the eastern side of Polaris, and Ursa Major on the west. Virgo dominated the southwestern
sky. I love the summer skies, but it’s supposed to be in the low 40’s or 50’s
when the skies look like that, not the low 20’s. Anyway I was originally hoping
to log a bunch of the brighter Messier object’s in
Sagittarius and Scorpio. But the weather was uncooperative. Most of my
un-logged Sagittarius objects, and M6 were behind the muck in the southern
skies. I logged the big globular cluster, M4 (in Scorpio) at 5:01am. I picked
up my tripod and pointed east where the skies were better. The rich sky of
Cygnus yielded up the open cluster M39 at 5:10am, and thinking I had all I
needed for the Binocular Messier Club, and my fingers complaining of the cold,
I hurried back into my truck for a short morning nap before moonrise. I sure
wish I had gone for M56 and M57 in Lyra while I had
the chance. Oh well, it’s not like they’re going anywhere. And it will likely
be warmer when I see them again.
I woke up about 5:45 with the thin, waning
crescent moon in the East. Sagittarius was now higher in the south. The sun
came up around 7am and it was mostly ringed by a 22° Sun Halo. The rainbow was
best on the right (south) and above (west) the suns disk. The ring broke in the
upper left but reformed almost due left (north). I thought the left and right
points were almost like sun dogs, but they were more defocused and more rainbow
like than a good sundog tends to be.
This was a fun Messier Marathon despite the
low count of objects found or seen.
March 20th Saturday Night
Tonight we had another
university class star party for BSU and CWI students. The skies were terrible.
The large masses of clouds and overall large quantity of water in the air made
for poor transparency (2/5) and the high winds kept the seeing poor as well
(2/5). Despite the conditions we still showed about 40 to 50 folks open
clusters like M41, M44, the double cluster and M45. We also showed off the
Orion nebula M42 and the moon and planets Venus, Mars and Saturn. I spent most
of my time on Saturn as it looks good in my 120mm APO in poor conditions. I
spent the rest of the time on M41 and early in the evening, the moon.
March 19th Friday Night
I participated in a star
party for the Vallivue Middle School. Ronda Weygant, Scott and I congregated at Vallivue
Middle school in Nampa along with about 50 to 60 students and parents around
9pm. Throughout the night I showed people the Moon, , the Pleiades, and towards
the end of the night (around 10:20) Saturn and M42 through my 120ED APO. The
wind all but died by 9:30 making for a very pleasant night. The skies where
laced with high thin wispy clouds on occasion making for mediocre transparency
(3/5). But despite this moisture the skies were rather stable. I’d say seeing
was mediocre to good on occasion (3/5). At one point I could clearly see all
four stars of the trapezium at 30x. It didn’t last for
long but was briefly exciting.
March 18th, Thursday Night
I participated in a star
party for the BSU astronomy class. Richard Beaver, Steve Bell, and I congregated
at Dedication Point along with about 30 students around 9pm. Throughout the
night I showed people Venus, the Moon, the Double Cluster, the Pleiades, and
towards the end of the night (around 10:45) Saturn through my 120ED APO. The
wind began picking up around 10:15 and the skies, while clear of clouds
seemed laden with moisture producing mediocre transparency(3/5) and poor
seeing(2/5). These conditions worsened around 10:30.
March 14th, Sunday Night
Well tonight went really
well. I packed my 11x70 binoculars, a tripod, my copy of the Pocket Sky Atlas,
some snacks and warm gear and headed to Dedication Point. There were 5 of us
there plus a couple of members of the public for a short while. Steve brought
his televue, Eric brought his criterion SCT, Irwin
brought his Meade SCT, and Lowell brought his 15” Discovery Dob.
This dob is much shorter than mine. It has an F5 focal
ratio meaning a 75” focal length. Mine is a 16” F5.5 yielding an 88” focal
length. Yet his seemed much shorter than the 13” difference in focal length. I
think I should have done a 16” F5 now instead, Oh well.
The skies were good until
about 10:45 when the transparency really started to go, due to high thin wispy
clouds. My goal was to get my Binocular Messier list further a long and I made
great progress. I started out with M31 just before 9pm and finished with a pair
of galaxies (M60 and M59) in Virgo at 10:44. I logged 13 objects that hadn’t
been done yet and observed 15. The two galaxies M66 and M65 in Leo had been
logged previously.
I was fully expecting to
see globular clusters, open clusters, brighter nebula and galaxies in my
binoculars but was surprised by how apparent 10th magnitude galaxies
were in these small lenses. For me, it really reinforced the concept that sky
conditions have a lot to do with success.
Also I think the field of
view helped a great deal as well. When I attempt to target faint objects in my
80mm finder I don’t see them as well as I do in these
binoculars. The 80mm finder has about a 3 degree field while the binos have a 4.5 degree field of view. When you can put
beta Andromeda and mu Andromeda in the same field, star hopping to the target
is just easier. Also picking out the ‘fuzzy’ spots seems easier with more
little stars to judge them by.
I have also decided I
need to learn more of the named stars by heart. It will make navigating easier.
I also need to memorize the greek
alphabet, this too will make things easier.
March 5th
Well
my mount continues to be plagued with problems. I'm now getting a ‘No Response
17’ error when trying to align the scope. Friends tell me this means I have an
encoder that is not responding to the hand controller signals properly. I'll
contact Celestron on Monday. Other than this issue I
had a great time observing at Dedication Point. 6 folks and 5 scopes showed up.
We looked at Mars which due to the sky conditions wasn't all that good tonight,
and at the end, Saturn. I spotted what I thought were 3 moons. I logged the
double cluster. The sky conditions were such that continued exploration of
objects in Perseus was going to be difficult so I moved to Orion. Once there I
observed 3 more open clusters and tried for a faint nebula but couldn’t find
it. The Sky-Watcher ED120 APO is very rewarding to use for open clusters as the
stars are crisp and clear.
Late February/early March
I bought a
deep cycle 12v Marine battery, an AC power inverter, a battery recharger, Celestron AC power cord, and a cigarette lighter socket. I
built a little shelf/stand that mounts onto the top of the boat battery, and
mounted the 12VDC socket and inverter on top. I will now be able to power the
GTCG5 all night long on AC power or DR power. If I use the DC plug for the
scope I can use the inverter for a laptop perhaps, although others in the club
had advised against this.
You have to use a deep cycle battery as they are designed for sustained power
draws while typical car batteries are designed to provide a lot of power
initially but don't have a lot of sustained delivery ability.
February 18th, 2010, Meridian ID. Mary
McPherson Elementary Science Night
Instrument:
Sky-Watcher 120ED APO
Condition:
3 - stable skies, average seeing
3 - typical/average transparency
Eye Pieces: Celestron Ultima
30mm, 30x; Celestron Ultima
18mm, 50x; Celestron Ultima
12.5mm, 72x
Notes:
The
skies had been cloudy for weeks. I was supposed to talk about the Lunar stations if the skies prevented seeing anything and I
was very unprepared for this. I was SO lucky tonight. The skies cleared from
about 5pm to a little after 9:30pm. In this window I
set up my GTCG5 on the school's playground and showed a thin crescent moon to
about 30 to 40 kids and parents from 6:00 to about 8:00. I showed a few people
Mars and tried for M42 but the building lights were due south and obstructed
southern views quite effectively.
This
evening I resolved to end my power problems with my GTCG5. After setting up the
scope with a Celestron powertank
that I thought was fully charged, I was very disappointed when it ran out of
power after only about 30 minutes of operation.
February 7, 2010 08:30p at Backyard, Meridian ID.
Instrument:
Sky-Watcher 120ED APO
Technical : Prime Solar System Object in Cancer, R.A. 08h39m07.0s Dec.
+23°04'05", -1.1 mag, Alt 40°
Condition:
3 - stable skies, average seeing
2 - poor transparency
Eye Pieces: Celestron Ultima
30mm, 30x; TeleVue Nagler 6
9mm, 100x
Notes:
Mars
had just past Opposition in relation to the earth and sun an was very bright and large in the
sky. Visually I mistook it for Jupiter a couple of nights before this. I was
trying out my new 120ED APO and again a couple nights prior to this one, with
much worse skies, I mistook Mars for Jupiter. It's
size, brightness and
coloring were very similar to my experiences with that larger planet, I didn't
see the typical Galilean moons and was confused by this at the time. It wasn't
until the next morning that I confirmed its identity. On this night Mars was
spectacular. Positioned about 40 or so degrees above the eastern horizon it was
bright and bold. I could not get my mounts motors going so I only observed for
a few minutes at a time at 100x but the details were like nothing I've ever
seen before personally. I could make out large triangles of dark brown in the
north and south regions against an overall reddish brown disk. I wish I could
have set up my 16" but it was too cold, too late and the skies weren't
that
good. I can't wait to see what Jupiter looks like with this scope.
January 2010
I have
wanted an APO refractor for some time. I came into some money which allowed me
to afford this goal. I bought a Sky Watcher 120mm F7.5 ED APO from OPT. I began
putting it to use very quickly.
2010
Observing Projects:
Prior to 2010 I have completed the
Messier List of 110 objects and begun the Herschel 400 List, and the Binocular
Messier List. I would really like to finish the Bino
Messier list this year and make a bigger dent in the H4C. I think I will also
start the Double Star list this year too.
The
Herschel 400 list is the most challenging, because of its size and the
magnitude of some of its objects. At the beginning of 2010 I have 45 of them
logged, plus a few more that are on the Messier list that I've observed but
haven't logged again yet. I plan to re-observe these. I originally
planned to tackle specific constellations and complete them (or get as close as
possible) before moving on. And I kept a basic guide of doing things by
quantities of 4 or 1% of the list. However this has some drawbacks. I think now
I will apply a bit wider filter to my process. I noticed that there about 230
galaxies (almost 60% of the list), the brightest of which is M33 at 6.4 and the
dimmest is NGC 3912 at about 13.2. Most are in the 9 to 11 range. There are 105
open clusters (about 26% of the list), ranging from 2.5 magnitude all the way
to 14th magnitude. But only about 6 are 11th Magnitude or dimmer. So I don't
need my 40cm scope to find most of the open clusters. 8% of the list consists
of globular clusters and all but 6 of those are birgther
than 10th magnitude, so again, possible candidates for my 12cm refractor. We'll
see.
I've
got 30 of the Messiers logged as BMC objects and I'm
confident that I'll get the rest needed for the award
by this summer, hopefully at the upcoming Messier Marathon.