I have a celestron 8" 203mm starhopper from 1998, in the technical specifications they say it has 843x light gathering than the unaided eye. Most 8" newt.ref....

Can anyone give me advice on how to stop dew forming on a 16" mirror which is permanently mounted in an observatory. -- Regards Tim

As you may have heard, asteroid 1937 UB (Hermes) was recently recovered. Some of you may ask, what's the big deal about finding a numbered and named asteroid?...

We saw several meteors last night between 9:45 and 10:15. They appeared to be radiating from the NE low in the sky. (We are near Chicago.) To me, it doesn't...

I have a calibrated eyepiece, but often forget to turn off the power switch. It doesn't take long for the 2 small 1.5v 357 watch batteries to drain. There goes...

Has anybody ever dealt with this firm? They have very good prices on achromatic objectives. Quality?

is there such a thing as a double eyepiece for telescope ?? (its kind of hard to always look with one eye..., it would be nice to have something like...

Space Weather Message Code: WARK05 Serial Number: 337 Issue Time: 2003 Oct 18 0205 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2003 Oct 18 0207...

I recently purchased a Meade AR5 refractor OTA only (5" (127mm) lens, 1180mm focal length). I was hoping to use a tripod and mount that I already had until I...

I've just sent off for the $99 Celestron eypiece and filter set by purchasing a low-cost ($80) Celestron refractor and having them bundled. Should be with us...

A 20mm eyepiece with a 2x Barlow is probably more comfortable (especially if you wear glasses) than a 10mm eyepiece by itself. You are right that the 6mm...

Even with a 1.9Gig processor, Registax runs pretty slow on my fastest machine. In the next-to-last issue of LangaList (Fred Langa's PC newsletter), Fred...

I just got an Orion Solar Filter for my Star Max last week. I just used it for about 10 minutes as the sunw as going down. While it wasn't blinding, my eye I...

Bought the new Celestron 25x100 weighs 10 #. Good news great optics. Bad news heavy. Got any suggestions for support?

Hi. I was talking to a couple of people and offered to take them out to a park in Brookline, MA this Tuesday to show them my telescope. I know there's light...

had a star chart at the beginning of each constellation with all the objects described in the text plotted. Scotty

"Anthony Ayiomamitis" wrote: I will thrown in my two cents as well since I have (and cherish) my Nikon Coolpix 995 .... I'm not aware or any digital...

Seeing the seven sisters, the moon, the beehive cluster, Jupiter and Mercury come over the horizon has been great. Venus arrives a bit late, yet I still hunt...

Dear All, I've just posted the new "Image of the Week" at the Bellatrix Observatory's website: http://www.bellatrixobservatory.org/picture.html It is an...

Subject: PizzaGram - October 25, 2003 Star Party Date: Thursday, October 16, 2003 11:09 PM Greetings Fellow Stargazer, The Second Law of Thermodynamics...