forwarded by Terry...3 letters concerning the POSSIBLE discovery/announcement of our system's 10th planet...can't vouch for the accuracy of any of this, but it...

Sorry this is so late... Just wanted to wish everyone a Happy Pi Day... = 3/14! ;-) -Florian PS: Of course it's 14/3 for most of the world.

This is truly fascinating. The first picture ever of earth from a real planet. Mind boggling at the...

So far the rovers have not detected any economic minerals of important concentration. It's not even certain that uneconomic "fools gold" (iron sulphide - FeS)...

I just read in SFGate that the newly discovered planetoid, Sedna, is the first direct evidence of the Oort Cloud. There was also some blurb about Sedna likely...

And so the saga continues... For those of you who may remember my post *many* moons ago about me taking a bet to grind and polish a mirror in a single day,...

I wonder if, at some point in the future, Sedna will be truly embraced by the general public as a member of the "real" planets. I doubt it. The accepted...

I have both an 8" primary and secondary which are mounted using silicone sealer (common practice). What's the best way to remove the mirrors from the mounts...

I used to frequent this newsgroup a lot, then I got caught up in other activies and haven't had my scope out in a couple of years. Now I'm about to take my...

Only a relatively small number of amateur astronomers are in a position to contribute data of value to the wider astronomical community on a regular basis....

What is the name of the cooling fan, long tube, that goes inside a SCT telescope? I'm looking for one, for my C-11. I've seen it some where. Any one has it for...

Can you see the new planet with 10x50 bins? Only joking g but it would be nice to know the current RA/Dec/mag of the new 'planet' or maybe the discovery...

It's amazing! I was having dinner on Sunday and a friend and I were talking about manned versus unmanned missions. The Mars rovers came up and we talked...

Hi, I am trying to find on the Internet any coordinate of the new planet Sedna, nothing, excepting a few pictures and drawings. According C.Tombaught (old...

Hey group - this is my first posting! I'm a recent Tufts grad looking to start an online bookstore which specializes in technical science titles (all...

Why would I want to waste money on a solar filter for my scope when I can just wear sunglasses? I got the expensive kind of sunglasses; they darken when it...

MPEC 2004-E45 : 2003 VB12 (Sedna) Ref: http://cfa-www.harvard.edu/mpec/K04/K04E45.html Since the visual magnitude is +21.3, this Kuiper Belt object is not...

Hi to all, I have inserted in a new page of my site denominated "MARCH 2004" some images in high resolution of the Moon it took back in this month with...

This question came up at a school star party last night. I'm sure there's a fairly straightforward formula for this (probably something involving sines,...

Hi again... I started with an Orion SkyView Pro mount on my 8" reflector...very pleased with that mount. Bought the dual drives from Orion, installed them,...