I've posted a picture on the astro alt bianaries group of some very colorful aurora we saw on the weekend at our clubs annual Star-B-Que (Aurora over Alberta...

Folks, There was a very recent S&T online article surrounding the stupid reference to the 2005 opposition making rounds on the 'net (Mars being visible by eye...

http://www.intellicast.com/Local/USNationalWide.asp?loc=usa&seg=LocalWeather&prodgrp=SatelliteImagery&product=UnitedStatesHIRES&prodnav=none&pid=none

Space Weather Message Code: WARK06 Serial Number: 134 Issue Time: 2005 Jul 12 1235 UTC WARNING: Geomagnetic K-Index of 6 expected Valid From: 2005 Jul 12 1138...

Space Weather Message Code: WARK06 Serial Number: 133 Issue Time: 2005 Jul 12 1138 UTC WARNING: Geomagnetic K-Index of 6 expected Valid From: 2005 Jul 12 1138...

Due to the growing realisation that every posting will draw an adverse reaction or the usual stalkers,it is just easier to present the raw data and men are big...

A few shots from last night (some reprocessed from my previous posting). Rather than waste the plane scarred image, I've annotated it to show the major...

Folks, What a crime that light pollution deprives each and every human being the ability to witness and marvel the beauty and aura of the Milky Way! We are...

John Steinberg wrote: http://www.edgcm.org/ Most climate researchers believe that climate change will impact our planet's environment and the world's...

It would be my Dream to have him show up on a night when I'm up on the corner. After all, he is the reason I chose to start doing Sidewalk Astronomy when I...

"John Steinberg" wrote in message ... http://www.edgcm.org/ Most climate researchers believe...

DC Agle (818) 393-9011 Jet Propulsion Laboratory, Pasadena, Calif. Dolores Beasley (202) 358-1753 NASA Headquarters, Washington Lee Tune (301)...

Does anyone know a way of measuring the effect of mirror flop? For example, one might consider picking a star somewhere, centering it in the eyepiece,...

I live in New York and I was wondering what is the difference in the night sky if you compare it to Chicago where there are only 3 million people. New York has...

Hi all, Join US its free: fmogroup.org thanks Stu

on one of the pages they were showing the hydrogen adsorption lines on quasar spectra and it said every dip was a separate hydrogen cloud the light had passed...

Finally bagged this nova discovered by Bill Liller in Chile 6 days ago. At -30.5o declination it's only 8o above the horizon but only 4o for me due to local...

ftp://hpiers.obspm.fr/iers/bul/bulc/bulletinc.dat INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) SERVICE INTERNATIONAL DE LA ROTATION...

Hi everybody, A secondary mirror supported by a single stalk 'spider' in a classical Newtonian design will generate a diffraction spike at 90...

It's amazing how the message announcing the once in a life time close approach to Mars is still buzzing around there on the internet. Friends keep sending...