Monday, April 12, 2010

DSOs On A Clear Spring Evening

I managed to step outside for a while the Saturday night - which happened to be one of the clearest nights we've had this spring. Although the warmer nights are more enjoyable, the clouds that have been forming in the evening are less than desirable.

I've kinda been on a cluster streak lately and I was in the mood to see a new galaxy or nebula. I began with M3. This cluster is one of the largest and brightest, oldest and is made up of around 500,000 stars. I can tell that this would be a beautiful dense cluster in a larger scope, but with my 8" and my skies it was mostly dim and washed out. I could make out the texture and individual stars - it just wasn't very sharp.

Next up was M63, the Sunflower Galaxy, then M51. M63 was just a gray smudge with a bright core, and M51 had eluded me in the past (poor seeing) so I was happy to finally catch it on this clear night. As faint as it was, I was actually able to tell it was spiraled. Darker skies and more aperture will bring out the spiral structure and core in this galaxy. I then spotted M101 and M109 - M101 being the absolute faintest object of the night. I was only able to detect it after about a minute of staring and using averted vision - it was like trying to see a ghost. M108 was actually more distinguishable than M63, but still very faint.

After moving away from M108, I changed my mind and decided to go back for another look. I'm really starting to dislike my [6x30 no cross-hair] finder scope, and finding my way back just wasn't as easy as it could be. While searching for 108 again, I found another object which surprised and thrilled me. It wasn't on the map I had with me, so I had no idea what I was looking at, but it was a very large round cloud. I eventually realized that I could put this object and M108 in the same FOV, which was beautiful and exciting. After I got back inside and had a chance to look it up, I found out I had spotted the Owl Nebula (Messier 97). How very cool! All in all, very satisfying for me. The best find though was M81 and 82 (Bode's Nebula/Galaxy) side by side. These were the most distinct objects I found, and were a great pleasure to see. Everything I saw was best viewed at 48x with my 25mm Plossl. I have a Barlow coming in this week, and am looking forward to using it. 150x was just too much for the galaxies except for M51 and 63.