Ole Christiansen Roemer proposed in 1676 that light travels at an finite speed. He reached this conclusion by observing the moons of Jupiter when Jupiter was...

Looking at a lot of websites I see the 10" LX 90 LNT it's only about £50 dearer than the 8", why? Is there something wrong with the 10" scopes? Redman

I notice that Meade Prices have gone down!! I see the 12 Inch LE90 was £2799 last weekend and is now £2099

I borrowed a 60mm refractor at the weekend as the start point for my quest to buy a scope -done 8 months 'training' with bins! The scope is a Skywatcher 609...

Has the Cassini probe led to an accurate figure for thickness of Saturn's rings yet? The estimates vary widely even in relatively modern textbooks. I've heard...

"Io" "Io" its off to work we go? Well I tried. Terry

I invite you to visit my new web site dedicate to Astronomical observatories for research in astrophysics in...

If its not a strange question to ask - If you have been observing for quite a while and seen most of the easy objects then where typically do you start looking...

Hi everyone, I thought that perhaps you would want to reply to this: ---------------------------- Dear AuroraWatch subscribers Recently, the Particle...

does anyone listen to podcasts? i have subscribed to a few through itunes,interesting & free!

Quite a lot of activity on the Sun today. Here's a preliminary composite of the surface and a large prominience. The prom detail has been supplied by a shot...

Following link contains data for the 73P comet. http://cfa-www.harvard.edu/mpec/K06/K06G24.html Below is a line from data sheet. How do I interpret this. ...

Managed to get some images of the massive prominence display on Sunday. Coronado PST + Nikon Coolpix 950, afocal projection through a...

Leafing through uk.sci.astronomy, I read George Dishman's message of Wed, 19 Apr 2006: Alpha Centauri is currently drifting across our night skies with...

I have updated my RS Oph page with the latest spectrum from 22nd April taken using the Star Analyser diffraction grating and ...

An image taken last night clearly shows fragment B has split into two roughly equal brightness...

There is an enormous prom on the Sun at the moment which seems to be developing nicely. Worth a look. -- Dave Smith http://www.graviton.demon.co.uk

The BBC website contains a cute Java application called Sheep Dash that measures reaction time in a fairly simple sudden event situation. It may be of interest...

Hi, I use my ST80 on an EQ1 mount. This has several disadvantages - it takes too long to set up, it's fiddly, there are several bits that are easy to lose on...

Whilst running a simulation of the sky as seen from Side, Turkey at the time of the eclipse on the 29th, using Starry Night, I noticed that ISS was in the sky...