Hi folks. I've been thinking about building a 10" dob--problem is, I'm having a hard time finding a good mirror in the f/4.5-f/5 range. Lots of options for a...

On Wed, 20 Aug 2003 20:48:05 +1000, "Getho" wrote: I got some great advice from this group about which sort of scope to go for; I'm...

I'm a beginner, but this scope is in the price range I have decided upon. Would this perhaps be too much scope for a first instrument? Any suggestions for an...

Hubble has been taking a series of photos of Mars all month to lead up to the night of opposition. We will be taking images during the early morning of...

I asked a question about a week ago about the amount of detail I would be able to view with my 8 SCT, and I do appreciate all answers. I have looked at Saturn...

Does anyone know who is the UK agent for Edmund Scientific these days?

OR: Three Nights Under the Stars NELM 5.5 – 6.5 Sky Conditions: Clear Seeing: Pickering 4-6 Transparency: good Equipment: 15" F5 StarSplitter (Swayze),...

The only GOOD thing that can come out of this mis-information is it may get people to look up at the night sky (or lack thereof due to light pollution), and it...

Isn't mars going to retrograde in motion as earth overtakes it in August?

Seeing has not been good here in Kansas City this summer and brief P-5,6 is about as good as it has been for this apparition. Just barely enough to be teased...

I just got the word that this ocular is available to me. Should be *very* sweet as I have nothing in this focal length. Mars...just watch it sucker....

http://www.npr.org/features/feature.php?wfId=1401486 -- Hilton Evans --------------------------------------------------------------- Lon -71° 04' 35.3" Lat...

This was in the Thursday, August 21st edition of the Toronto Star on page G9 of the What's On section. Mars in August It's been 100,000 years since the red...

Is there any way to "easily" motorize a hardin optical 8" reflector scope? Right now it's on a particle board mount, and with a 4mm eyepiece, it's hard to see...

Un saludo a todos. Se ha creado un Foro especial para todos los que nos gusta la Astrofísica, la Astronomía y la Cosmología en idioma Español. El posteo de...

Ref: http://spaceweather.com/ GEOMAGNETIC STORM: Our planet is inside a high-speed solar wind stream flowing from a coronal hole on the sun. A moderate...

How do you find the center spot on a mirror. I got my scope apart and the mirror out and on the table but can't remember how it's done perfect. Thanks.

I have been looking at Mars through my 6" reflector. I can see the disk of the planet, but everything is blindingly white. Do I need a filter or something? I...

An astrologer reading this group for the last few weeks would be quick to connect the proximity of Mars to Earth and the almost unbearable namecalling,...

From the recent posts of Chuck, it's has become apparent that he and Shawn are indeed the same person. Incessant ranting about refractors seems to be all that...