Newbie here, pls bear with me: The universe is expanding, if so, the size of the universe is given by how far the stellar bodies at the edges of the universe...

At first I was sure that this was an airplane heading toward me or even directly away from me because it was not moving left or right. After 2 hours the light...

I have a TAL1 to which I would like to add a motor drive. Any suggestions?

I went to a local observatory last night, there was a big crowd lined up to look through the big scope at Mars. Mars was huge through the scope, though still...

I was watching a program the other night..... Astronauts from early space missions were discussing a visual phenomenon. They would see streaks of very bright...

nightbat wrote Sound waves in space, hmmmm, thunder in the dark black cosmos? Better not tell Enterprize or Archie, they might think they're trumpets in the...

so, the planets revolve around the sun in an elliptical orbit? all the models I have seen show the orbits as circular. This explains why we have summer and...

Hi, am new to astronomy, and was wondering, what do you define universe as? thanks, asger

I'm desperately seeking an equation that can calculate the current Julian date _with time_. I want to use this to write a macro. This equation would be able to...

A few years ago I came across some very nice Mars QTVR panoramas. Among them were candor chasma and ares valle. I believe the movies were at a NASA or JPL...

Since the earth precesses in it's rotation, it's poles trace out a circle in the stars about every 26,000 years. Right now, the north pole points to the part...

Whilst staying in France and watching the stars I happened to watch three satellites running parallel with each other in an equilateral...

Do Space Sims exists for home PC and if so, what is considered the best? Thanks, MAF

"Timberwolf" wrote... in message ... Hi everyone I'm a newbie to the world of...

Do the rest of you have problems with this? It's really quite amazing to see all the useless lights on at night in the northern suburbs of Boston, around the...

Thought you might enjoy these..... -- Dan Braasch ------------------- Sherlock Holmes and Dr. Watson are going camping. They pitch their...

Hi, CeeBee was kind enough to answer my collimation question in great detail. This helped me tremendously, for that I thank you! Now, I am lost. I keep...

As a newbie to astronomy, I am searching the night sky. I have a 4.5" reflector (Bushnell voyager) 4mm, 12,, and a 24mm, also a 3X barlow I am currently...

Sherlock Holmes and Dr. Watson are going camping. They pitch their tent under the stars and go to sleep. Sometime in the middle of the night, Holmes wakes...

I dont know how to set the RA on the CG4 mount. There is one circle 0-24 and another 0-12. What I dont understand is when you turn the scope do both circles...