Does anyone have any experience and/or recommendations using solar filters with this scope?

Has anyone had a chance to compare the Coronado Ha filters to the older Daystar units? Do they perform equally as well or are there differences? I understand...

Would it be safe to say that if we use 1" to a million miles, the earth is aprox. 93' from the sun? Does anyone know if the relative mass of the sun, say the...

Does time have a begining ?

Hello My name is Nataly iam a student of Moscow Astronomy Univercity. I am 20 years old. I have a favorite dream have a telescope! Me and my frieanwe a wont...

Hi guys, I'm curious, was Venus on a direct line between Earth and the sun on January 15th of this year? While driving from Amsterdam, NL to Heidelburg,...

5 LARSONIAN Binary Star Formation About half of all the stars in the galaxy in the vicinity of the sun are...

How many photons in line are needed to create a beam? Is a beam part of a quanta of photons.Is a flash of light a quanta of light? How many photons make up...

Trying my hand at botany. No green thumb have I Saw on TV tomatoes can be grown upside down. Gravity points the vine to the grown,so they are gravity feed. It...

Hello all: I recently purchased a telescope and began stargazing in my back yard. I live within Chicago and the city's light pollution is a serious...

I am looking for a website reference that can tell me when the next solar total eclipse of the sun occurs on a Friday the 13th. Any help would be greatly...

SPACE STATION TRANSIT: Usually when people spot the International Space Station (ISS), it's glowing in the night sky. On August 16th, however, Roland Stalder...

http://www.pietrobitto.it/inout/thumb.asp?idcat=13

What you learnt at school and in some books is false! There aren't on one side telluric planets (as the Earth) and of the other one the giant planets...

Hi folks, My trusty 8" Meade LX200 schmidt Cassegrain telescope is now up for sale, as I haven't got the space or the time to devote to it now. It might be of...

For those interested in Solar Spectrum rear mounted narrowband hydrogen alpha filters, a new Yahoo group has been...

I swear I can see three Objects hitting Sun before each of three last flares. http://150.144.30.101/data/LATEST/current_c2.mpg I have a copy of the file if...

i live in s. virginia and am interested in seeing the aurora. is there a best time of nite to observe, like right before dawn. or can it be seen all night. i...

Looking at some old astronomy books they had several descriptions of making your own equipment for looking at the sun in detail, instead of using...

Bucky Balls are nanospaceships. I have posted this over and over again for many many years. It relates to us throwing notes in glass bottles into our vast...