Showing posts with label astronomy. Show all posts
Showing posts with label astronomy. Show all posts

Saturday, November 7, 2009

Last one of these (for now)

I knew last night was going to be the last night I would have clear skies for a while, with a near-hurricane in the Gulf and real November weather on the way, so I rushed home yesterday from the most incomprehensible lecture I have attended in years and set up the big scope one more time.

Jupiter travels behind a giant tree in my yard by about 8:00 this time of year, and the Moon and our bellicose neighbor Mars are rising late and staying mostly in the trees, so I found myself out in the yard around 11:00 just sort of cruising the sky for something interesting. It's a bit like the cruising we did in high school, but it burns a lot less gas. The chances of getting lucky are about the same.

About the time I had determined that Andromeda and Triangulum were too directly overhead for the scope to reach, I noticed that Orion was coming into view so I decided to see if I could get a shot or two of M42, the Orion Nebula. I had already failed to get any usable pictures of several other deep sky objects, so it would be hard to imagine my surprise at the end of a five-minute exposure when this picture popped up on the little camera screen:



I know ways I can get better shots, but I will need more new toys. And there is more I can do with software in post-processing once I learn how. But for the moment I am just going to enjoy the rare, pleasant surprise of success without preparation.

Tuesday, November 3, 2009

Maybe it's that global warming I've been hearing so much about

The weather here has been quite strange this fall. A former girlfriend called October "convertible month," but this year it rained practically every day. November has been surprisingly clear and mild so far, giving me an opportunity to get out for a little stargazing the last couple of nights.

So Sunday I finally got a chance to put the new camera on the big telescope and take a tour of the sky. We have a large number of big trees and a lot of light pollution, so there were only a few items of interest visible and I can't really do any long exposures, but I had a good time.

This is Almach, a double star that I discovered somewhat by accident when I was looking for stars to use to align my scope. You can see it these days rising in the eastern sky not long after sunset. You can resolve the two stars with a good pair of binoculars.



This is the wife's favorite picture of the moon, because of all the big craters that are visible out on the southern limb. The big crater in the middle is Tycho.



Last night it was clear again and there was a great full moon, so I brought out the little scope to get the whole thing in one shot. It's not as clear as the view from a mile high, but my Facebook friends seem to like it.



I tried to get some pictures of Jupiter before it went behind the giant trees in my yard, but I'm still trying to get the balance between keeping the Galilean moons visible and overexposing Jupiter.



I probably need to try eyepiece projection for planetary photography, which means I need to buy a tele-extender. Plus, I think I might need some filters. And maybe some new software. I guess I had better start with lottery tickets.