July 25th Star Party at Mingo Observatory

The AAAP hosted another popular star party at the Mingo Creek observatory this past Friday, and I was very excited to finally take the 6SE out this darker site. I had been assembling several new accessories as well – more on those in a minute. Over the course of the night, we hosted over 100 visitors, and it was one of the best nights of conversation that I’ve had at Mingo since joining the club 2 years ago.

I set up near the reflector room, which featured the 24” Ritchey-Chrétien reflector on the new mount. The mount is amazing – solid and accurate – a true work of art. I wanted to stay close to the building so that I could work the reflector or answer questions as needed, and I wanted to be close to a power outlet :)

I set up the scope (see the photo at the right), doing a finder scope alignment and visually testing the overall collimation. I had just added some Bob’s Knobs to help me easily collimate the scope, and it appeared as though it was decently collimated at first glace. I had also purchased a new Astrozap dew shield, and added that to the front of the scope. The sun was still setting, and I had a bit of a wait before two decent alignment stars appeared. I also found some small blinking red LEDs at Radio Shack that I used to mark the tripod legs and power supply. I found that these worked really well – people saw the lights and knew to walk carefully around them. They can be purchased in most stores, or online here.

I walked around to speak to some members, and had some great conversations about equipment, accessories, books, and the club. There were some new members, and we had a lot of fun looking at and discussing the new reflector mount.
As the night progressed, I had some great conversations with the guests, and really appreciated how friendly and interested the crowds of people were. We discussed equipment, various Messier objects and nebulae, and other fun geek stuff :)
I found that my scope performed better than ever, keeping objects centered in the eyepiece for as long as I wanted. I spent some time with Jupiter at over 350x, and even with the less-than-optimal seeing it was a fun view, allowing me to see more cloud bands than I’ve ever seen.

I observed a bunch of objects over the course of the night, including: the Ring Nebula, the Dumbbell Nebula, M13 (Hercules Cluster), the Wild Duck Cluster, the Swan Nebula, the Lagoon Nebula, the Trifid Nebula, the Eagle Nebula, and many others. I was impressed with the new nebula filter that I had just received that week. Based on several recommendations, I decided to buy the NPB filter from Omega Filters (available here). It really helped to make the various nebulae “pop” from the eyepiece. The Trifid was tough to spot, though I had heard from others that night that they had similar problems seeing it well. Not sure why.

I really enjoyed the southern views of Mingo, and spent most of my time observing that part of the sky. The Milky way did become visible as the night went on, but the overall brightness was not as high as other nights that I’ve spent on the hill. In fact, after midnight, the conditions began to get worse. Clouds began to form towards the horizon and haze ruined the south.

I spent the last part of the night with a few members and guests running the reflector. Having a true computer-controlled telescope is really a blast – just find an item on the screen (the computer uses The Sky software), click it, click “slew”, and sit back and watch the enormous 24” scope track in just seconds. It was fast, accurate, and whisper quiet. The mount makers should really be commended on their work, as well as the members that spent so much time and effort getting the new mount installed and configured.

Another great night out! Hope to see even more people for the next one!

Special Thanks to AAAP member and professional photographer Dave Smith for allowing me to repost a few of the images that he took at the party. For the entire set of images, please visit this site.

Todd