Gents, Just a few days past perihelion and comet 168/P Hergenrother experiences an outburst. For an animation and time series, please see...

Recent Martian Meteorite: small cracks in the fragment contain bits of black glass ...

Space Weather News for Oct. 8, 2012 http://spaceweather.com METEOR OUTBURST: Radars in Canada are reporting a major outburst of Draconid meteors...

As my roll-off roof observatory is nearing completion, I now need to find some good carpet. The observatory sits on a concrete pad. I have been considering...

Space Weather Message Code: ALTK06 Serial Number: 296 Issue Time: 2012 Oct 08 1144 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2012 Oct...

Curiosity finds evidence of water on Mars http://www.sciencedump.com/content/curiosity-finds-evidence-water-mars NASA's Curiosity rover found an ancient...

Amazing how many unlabeled refractors, etc., are available from this site. They don't list prices though, you have to get a...

The meteor is in Washington D.C., but where was the fall site. I recall it was near a river in perhaps downtown Portland. They had a nice walk way with the...

http://www.flickr.com/photos/35853148@N05/8025778157 If I tell my camera that the moon is a sunlit object (which it is), that picture comes out orangey-brown....

On Saturday, February 21, 1998 9:00:00 AM UTC+1, Matthew Wiggins wrote: I'm looking at buying a pair of binoculars for astronomy (probably 7x50 or 8x56)...

Space Weather News for Oct. 7, 2012 http://spaceweather.com DRACONID METEOR WATCH: Earth is about to pass through a stream of debris from comet...

On Saturday, February 21, 1998 3:00:00 AM UTC-5, Matthew Wiggins wrote: I'm looking at buying a pair of binoculars for astronomy (probably 7x50 or 8x56)...

Introducing Comet ISON http://apod.nasa.gov/apod/ap121001.html The comet, discovered just over a week ago from Russia by Vitali Nevski (Belarus) and...

Way back in undergraduate optics, I was told that reducing the aperture of a lens mitigates various problems such as spherical aberration, and of course it...

HA! http://news.gather.com/viewArticle.action?articleId=281474981174525 \Paul A

Is there a tool or graph that shows the thickness of the atmosphere at various elevations and accounts for the altitude of the observatory?

See Subject. Anyone know whether such intensifiers might be available say for some Watec or similar cameras?

What is the difference between MPCORB.DAT and ASTORB.DAT? Do they contain completely different sets of MPs, or were produced differently in some way?

Space Weather News for Oct. 1, 2012 http://spaceweather.com CME IMPACT: A coronal mass ejection (CME) hit Earth's magnetic field on Sept. 30th. At...

Space Weather News for Sept. 25, 2012 http://spaceweather.com SUNDIVING COMET: Astronomers are paying close attention to a newly-discovered comet, C/2012 S1...