Greetings. I expect that the information I seek is either available in a table somewhere or can be easily calculated with the right set of equations. I would...

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...

Hi, I am going to build a house in Vancouver WA. Since it is now winter I would like to be able to calculate where the sun will set in the summer time so...

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...

As much as I am disdained at public postings of this nature on news groups, they do tend to serve as a focused group for this particular...

As much as I am disdained at public postings of this nature on news groups, they do tend to serve as a focused group for this particular...

Omdat hier voornamelijk engels wordt gesproken, heb ik een nederlandse discussie groep geopenend...hij is te vinden op http://www.galaxies.nl We hebben nog...

Below are details of a new book that may be of interest. (Also check out http://www.amazon.co.uk/exec/obidos/ASIN/1904018866/etrex09-21 ) BOOK TITLE: Why We...

I recently posted that my high power (6mm) eyepeice was no good. Mea Culpa...I had not let the telescope thermally stabilise. Didn't know I had to! Toniht...

If I cannot get / expect excellent resolution from my current Arena eye[eices, are the Plossl ones on ebay worth considering as an aftermarket substitution? D

Win at Native American Casino's This 125 page book shows you how. Learn their payoff schedules and when to go and when not to go. Includes the slot maps of the...

Professional Legal Forms for do it yourself! SPECIAL TOOLS used by Carleton Sheets, Russ Whitney, Ron LeGrand, Robert Kisyosaki students Introducing the...

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...

"New Internet Portal Connects Students with Expeditions" http://www.expeditionquest.com Have you ever wanted to join an expedition to the Antarctic, follow...

Dear Everyone For those people who are signed up with servey sites that give you points for completing serveys and you redeam them for cash, LEAVE THEM! I...

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...

Hi Group Doen anyone know a good source of "not so expensive" diffration gradings (600 to 1200 g/mm)? I would like to experiment with spectroscopy and...

27 December 2003 ++++++++++++++++ --The January 2004 issue is now online This month read about: --Earth at Perihelion and the Reasons for Seasons --Eccentric...

Guys, sorry for the lack of info...I wasn't sure what to give. Anyway, its a 500mm focal length reflecting telescope, it has the optical eyepeices coming out...

Sorry...christmas puddy fingers. D