Tuesday, June 12, 2007
A good night to look at the stars
It was a good night to get out and look at the stars. I've not been at Stephens Memorial Observatory (SMO) for quite some time and have missed two excellent nights. Last night's sky conditions weren't as good as Saturday and Sunday night's but I wasn't up to going out. It's been a physically and emotionally draining week. I packed my observing kit into the car and took off for the dark(er) skies of Portage County. It's nearing summer solstice so twilight seems to go on forever. With trees tall around the observatory Jupiter, which rose before sunset, didn't clear the trees until a little after 10:00 PM. Seeing wasn't the best for that big, brilliant planet, but I could make out some of the colored bands of Jupiter's atmosphere. I went fishing for a couple of galaxies but never found them; I still have much to learn about aiming the big telescope! After a while I went back to Jupiter and, unfortunately, sky conditions weren't quite as good as earlier. In the mean time Scorpius had risen above the trees and, using red Antares as a guide, found the beautiful globular star cluster M4, 5,600 light years distant. In the eyepiece the cluster looked elongated vertically and not so densely packed as most of the globulars I've seen; I liked it all the more for that! I attached a digital camera to the century-old telescope and tried to image Jupiter but still am not happy with the results. Eyepiece projection produces soft images (maybe due to poor physical coupling) and the adapter is too long for prime-focus. I'll have to work on better coupling of the camera to the telescope and buy a short coupler. Closed up and left at about 11:30 PM with a sore neck (from looking up) but feeling refreshed. A last look back at the observatory building silhouetted against a very starry sky brought a smile to my face. A most excellent way to end the day!
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