Tuesday, April 21, 2009

Brief Observing Session - April 21, 2009

Having an oh so joyful day at work today, I decided to take the Lightbridge out to the local observing spot instead of stay at home and write research papers. I needed to chill! The night was warm and a bit humid, and the sky was very clear indeed. Seeing was maybe 3/5, there was something high up in the atmosphere which gave stars a blurry appearance. Even my binoculars picked this up.

Anyway, I targeted some galaxies tonight, primarily. I started off with the familiar sight of M81 and M82. Even in the local, light-polluted skies they appeared bright and stood out clearly from the dark background of space. I could see a little bit of detail in the Cigar galaxy, but not too much. I then went onto the M51 "Whirlpool" galaxy, and could only really discern its two central bulges, like two grey eyes looking back at me. I also found the Leo Triplet which are a group of galaxies I have not observed often but need to pay moe attention to. I managed to get all three in the field of view of my Panoptic 22mm, and it was a pleasant sight.

I also checked out the Owl Nebula, and spent some time observing Saturn. I could see a fair amount of surface coloring, and the rings looked elegant as they appeared to pierce the plant through its center. There was a very small level of tilt to the rings that I could observe, as well as maybe three moons.

I was only out for about 1.5 hrs before I felt too tired and needed to come home. Still, it was nice to be under the stars again - it had been a while.

I also took my DSLR and tripod and experimented around a little bit. I took the image below of the Auriga constellation, which consists of around 18*25 second exposures at F5.6, ISO800. I pointed out some of the neater features of the constellation as well.

Click on image for full size






5 comments:

Rory said...

Nice photo, Phil! I've been planning on taking some shots like this one, too. I know what you mean about blowing off steam. A nice, quiet night under the stars is good stress relief.

I found M37 and M35 in the photo, too. M37 is up and to the left of M36. M35 is the fuzzy patch on the left edge, about 1/6th of the way down from the top.

Comet Cardinal (C/2008 T2) is just below M37, if this was taken on Tuesday night. I can't make it out. Maybe it's visible in the full-size image...

Phil said...

Hi Rory,

Thanks for the post! Yep, I should have pointed out M37 as well - it is visible indeed. I'll add that on the weekend just for grins.

Your comment about Comet Cardinal has me intrigued. I've looked at the full scale image and cross-checked it against SkyAtlas 2000.0 and can't quite make out anything out of place. I'll keep checking though...

Phil said...

Okay. I slightly modified the image but couldn't see a blob that would represent a comet. I did however add a label for M35 - thanks for that!

Rory said...

Below is a link to a picture taken on April 21 by Mike Prokosch. Two comets are visible below M37. But this was taken through a scope at probably 20X+ magnification. I guess they wouldn't show up in a regular photo.

http://schoolyardastronomy.wikispaces.com/Comet+Lulin

Polaris B said...

It's a great area of the sky. You remind me great things can be done with just a camera.