Take a look at the map folks: http://antwrp.gsfc.nasa.gov/apod/ap050925.html How the heck can scientists determine the age and makeup of the universe from...

I have been doing some reading, trying to get a handle on the effects of color planetary filters by planet. I believe I understand it but wanted to get some...

More precisely, how does an IR detector detect a temp of -20C when it's at 25C inside a hand held gun. here's one of these devices (for about $30) a Ryobi...

Before my question, my new purchases! 2" UHC Filter. Vibration Absorbtion Pads (I don't need them at home but if I set up on concrete...) 6mm Radian (I love...

I'm developing a love-hate relationship with the gods: Hate - Last night was beautiful for observing. Too bad I had to spend it inside doing some work that...

OK. I learned the first lesson months ago when I got a little dust on my nice C9 1/4 SCT and asked for cleaning advice. Don't Clean Your Telescope until...

I umpired 12 innings today and was tired when I got home. I set the telescope up anyway because I wanted to see the crescent Venus before it went away on me. ...

I'm taking the Telescope up to Lake Tahoe next week. Is there anything (equipment wise) I should be concerned about up there? I'm guessing that temperauters...

Well, the night started well but the Telrad dewed up after only about 30 minutes, the Finder after about an hour, and, when I checked the main scope after...

I have a Celestron C9 1/4 with 90 degree Star Diagonal on it. I have no problem star hopping using my Telrad or my Finder Scope (where EVERYTHING is upside...

I had a great night, my first real Star Party at the Elementary School my wife teaches at. I had Venus at first, a very nice cresent, and then was finally...

I'm not intending on inadvertantly starting a "Canon vs Nikon" type debate like it appears I nearly started with my question about GoTo above. I have a...

I was out observing in the desert this weekend and was practicing star hopping. I had assumed that my Finder Scope had a FOV of about 5 degrees (for some...

2 questions but first, my feel good story from last weekend. I was set up to a couple of monster telescopes (you know it is going to be impressive when the...

Let me start by saying that David Knisley may very well read this and say, "Oh, no. He didn't really understand a thing." This relates to my thread above on...

Being an Engineer, you'd think I could figure this out for myself. Then again, maybe that's why I'm having trouble with it. I know that the answer will depend...

It figures, but she who must be obeyed is going out of town with the kids on 7/4. That leaves me the night of 7/4 for as much viewing as I want...only what, 3...

My son was reading the most recent S&T and ran across the article on Przybylski’s Star (HD 101065). He decided he wanted to have a look and, at magnitude 8,...

I'm a bit confused here, or maybe I'm really not, you can tell me. Since it is nice and cloudy here, I was planning out my next viewing sessions. I was...

See my above post "The night started poorly but..." for the full story, but I finally got up the courage to try to find a galaxy last night. I chose M81/M82...