Showing posts with label Saturn. Show all posts
Showing posts with label Saturn. Show all posts

Monday, July 9, 2007

Friday Night at Mingo Star Party

I journeyed out to Mingo park again on Friday, where the AAAP was holding another weekend of star parties. I meant to go Saturday, but Friday was looking good and my kids somehow got to bed early. Go figure!

I brought my usual gear, but this was the first time with the new eyepieces and case (pics coming soon). I setup my tripod, for the camera and binoculars, my scope (‘ol Blue), my beach chair and the small equipment table. The table is actually a kids folding table that I steal from my 6 year old. Remind me to get a real observing table.

Venus and Saturn were close together, but setting fast. I used the barlowed 9mm to view them both at 155x, which was a treat. It’s the largest I’ve seen either in this scope, and they both looked great. They moved fast, so I decided to try Jupiter for a while.

Jupiter stayed out all night, and Mingo has a GREAT view of the southern sky. I saw more in the south tonight than I ever have before. Jupiter and the 4 main moons barely fit into the eyepiece view at 155x, but I got them. Better detail than I expected, including 2 cloud bands and possibly the red spot (I may have seen it, or I may have wanted to see it so badly that I faked my own eyes out ;-)). At that magnification, it moved out of view FAST. Tracking would be a good thing to have on the next scope, so maybe the Dob is out after all.

By far, my favorites of the night came from Sagittarius, where I was able to see several Messier objects with just the binoculars. I spotted M8 (Lagoon Nebula), M20 (Trifid Nebula), and M21 in what has to be the prettiest binocular-ready section of the sky. The Milky Way was “flowing” right out of the teapot of Sagittarius, and made my night. I can only imagine what darker sites would do for this part of the sky.

I also spent some time on Antares in Scorpius, and again used binoculars to find M4. By this point, I was also viewing M4 and M25 through the 24” reflector Mingo’s observatory, so I was getting a little spoiled. This scope now features a rotating turret of eyepieces, so changing between the 5 or 6 magnifications was perfectly simple. A great star party addition, especially since those eyepieces were all Tele-Vue Naglers. What I’d give to have a set of those in my eyepiece arsenal! Someday!

I started packing up at about 12:45, just as a lovely reddish-brown moon rose behind me. I took several shots of the moon, none of which really worked. Ah well.

Overall, a great night! I met several new people, and I’m sure I’ll even remember their names someday (I’m terrible with names!).

Thursday, June 21, 2007

A beautiful night for Luna

Last night was clear and cool here in Western PA, so I took all of the gear outside for an hour or so. I finally got to use the new barlow to view Saturn and Jupiter at higher magnifications - what a difference! Saturn is lower in the sky now, and is blocked by trees from my driveway almost as soon as it is visible. I ended up wandering down the street to my neighbors driveway to get a better view - I'm sure they all think I'm nuts.

Saturn through the barlowed 25mm eyepiece was about 56X magnification, and showed two moons and defined rings. I need to get a 8mm or so to really max out the magnification of the scope - it was a great view.

Jupiter was high in the darker eastern part of the sky, and the larger magnification helped me see 2 or 3 bands of color across the surface of the planet. The 4 large moons showed up 2 per side, making a nice view in the eyepiece. I'm sure the 8mm would be worth every penny on this planet as well.

I got distracted by the moon midway through the viewing session - it was a bright crescent in the South West, and I spent a while looking at the surface at 56x in the 25mm and 22x in the 32mm. It was such a nice view that I took the picture you see at the right. I think this was taken at f3.2 and ISO100. I'd have to check. I used my Canon S2IS digital on a tripod, and used the 10 second timer. Not bad! Took about 15 shots, and this was the best.

What I didn't remember, however, was that the ISS (International Space Station) was due to pass by the moon just before 11PM. Not only that, but the recently undocked shuttle would be following it, only 10 degrees or so behind. Only after I came in did I read how great a sight it was. RATS. Hopefully my brother in VA got to see it (he's been waiting all week).

As usual, I picked out M13 to close out the night. One of these days I'll get out my charts and plan an actual session. Likely I'll save that for a star party with darker skies and more time.

Monday, June 11, 2007

Mingo Creek Star Party

What a night! This was my second trip out to Mingo, this time deciding to come alone. The boys had been out playing all day and were exhausted, so I put them to bed early and headed out to the observatory hill.

Earlier in the day, I dug out the old Bushnell 3" reflector that my wife had given me years ago. I never had much luck using it, and I’m fairly certain it was because I didn’t know what I was doing. That, plus the fact that the telescope shipped with two rather poor plastic lens eyepieces and an even worse 3x Barlow. The low powered eyepiece was now missing, along with two of the tripod wing nuts and the screw that connects the fine adjustment rod to the scope body. I hit the Ace Hardware to search for the wing nuts, only to discover that they were not 1/4-20 as I had hoped…they were metric. Eesh. Instead of 50-cent wing nuts, I was forced to buy two $2.35 metric ones. It was all in the name of science, so I can't complain :)

I sent an email to the AAAP group earlier in the day, asking for help with the eyepiece. A fellow member wrote back to say he had one for me to use, and I was thrilled. I’d have to worry about collimation later - I was already running out of time.

I arrived before sunset and set up next to Fred, the AAAP member that allowed me the use of his eyepiece. Fred's truck was full to the brim with astronomical goodies, and he was in the process of setting up his 11" Celestron SCT. His computer-controlled CG-E mount was stunning to look at – it was HUGE. I know what I want in a scope, and I know what I can afford…that CG-E mount will have to wait :)

Fred handed me one of his 25mm eyepieces, and I set about aligning the finder scope on my Bushnell. I'm fairly certain that the Bushnell folks found the worst finder and mount imaginable and placed them on my scope. This is the 3-thumbscrew single ring type, and so I ended up aligning it about 10 times over the course of the evening. This led to my yelling "A Telrad, my kingdom for a Telrad!" several times throughout the night. I'll be picking up that little helpful tool soon.

Overall, the Bushnell worked fine. With the focuser completely pulled in, I was able to keep decent focus all night. I'm fairly certain I need to collimate the heck out of this thing, but for a grab-n-go scope, it worked fine.

So what did I see with 'ol Blue? How about 3 planets and 5 planetary moons in 10 minutes? Not too shabby for my first real night of telescopic observing. Venus was out first, and the scope rendered a lovely half-circle in the eyepiece. As Fred explained to me earlier, it was in its greatest elongation of the year - at the greatest angular distance from the Sun as seen from Earth. Very cool little fact to learn.

Up next was Jupiter, blazing away towards the south. It was very bright, and visitors couldn’t believe that the bright “star” they were looking at was actually a planet. Jupiter showed himself as a beige disc, very crisp, and with a small darker band towards the bottom. All four of the Galilean moons were visible, with 3 clustered below and one fairly far above. Antares was just to the south-east of Jupiter, and was sparkling brightly all night. I kept thinking I was seeing an airplane – it was so colorful. Scorpius may be my new favorite constellation.

Then Saturn popped up, and I grabbed a clear enough view of it to see distinct rings. The last time I had used this scope was when my brother took it out in my backyard in Florida. He found Saturn, and it looked like a mushy blob. Tonight, Saturn was clearly defined and there was space between the planet and its rings. Amazing what a better eyepiece will do! Titan showed up as well, just a tiny pinprick below the planet.

I met several very nice people, as well. Lots of great gear, lots of great conversation. Some of my favorite moments were spent discussing the two homemade trussed Dobs that were brought. Amazing what is possible with hard work and some inventive use of plumbing parts. Can you make a Crayford focuser from PVC pipe and some plastic rollers taken from old data tapes? Apparently you can! I took a picture of this one, and I’ll try to post it tomorrow. Thanks to Gary for taking me on a tour of your handmade beauty of a Dob.

Later, as the party dwindled down to the last few cars, Fred showed me some of my favorites in his SCT. We looked at Jupiter again, M13, the Blackeye galaxy, the Ring nebula, and a "double-double". My first time seeing many of these!

Thanks again to everyone that came out to the party. I found myself saying “THIS is why I joined this club” several times. Plus, visitors actually liked looking in my scope to see Jupiter. I had a blast telling them what I knew about the equipment, the stars, the planets, and the AAAP. What a great night!

Best part? Fred let me keep that eyepiece...and I was out again on Sunday showing the kids those same three planets before they went to bed. There are some great memories in 'ol Blue afterall.

Until next time, may your skies be clear and your scopes be collimated!
Todd