Hi all, Anyone come across tube rings for a 5" (125mm) tube anywhere? Cheers Ian.

There's an interesting thread on SAA but I'm wondering what the experience has been in the UK? Nytecam

is sputnik still orbiting us? if so i think it would be nice to bring it back and put it in a museum. probably be quite expensive and hard to justify resorce.

Nice triple prom coming around east limb - pic at http://home.freeuk.com/m.gavin/pstnew.htm with couple of proms on west limb. Disk activity moderate with...

Cost cuts likely to dim space telescope's vision The James Webb telescope, one of NASA's biggest science projects and Hubble's successor, is $1 billion...

Apologies for posting the second link twice, this was an afterthought. The unprocessed image prior to digital...

I could hear Brad counting in his head. "****," he said, finally. "Ten milli on and ten percent." "I just want you to know, I'm having a rough time of things...

If money were no object, what would it take to build a moon base fit for human habitation? Nasa is looking into just that, using the Hubble Space Telescope to...

Does any one know why so many astronomers (both amateurs & professionals) are called Martin?! Das

Dear uk.sci.astronomy This post is to set the record straight, and to correct the great deal of incorrect and extremely old & outdated information which...

On Fri, 26 Aug 2005 08:19:39 +0000, Andy Clews wrote: Did any BAA members here buy the Moore & Clarke 'Asteroid' book sold in aid of the tsunami relief...

This extremely powerful Green Laser pointer beam is clearly visible at night. You can actually point to stars and planets in the darkness. Easily strong...

Recent weather almost stops play. Had another go at processing M31 (apologies to Mr Geake). 74 x 30s exposures 300mm focal length @ F/5.6 with Canon 350D,...

Thanks to everybody who took time to reply to me with sound help and advise. I have contacted my local newspaper (Barnsley Chronicle) to arrange an interview...

I have had an article accepted by Cosmos Magazine, and paid a 2-year subscription. As yet - no sign of it! Has anyone yet received a copy - any copy - of...

Sunspot group #798 that developed rapidly with flare activity over the last week has reached the west solar limb and produced a big multi-looped prominence. ...

Received the latest version of "The handbook of astronomical imaging image processing" today. Its thicker than the family bible and may take just as long to...

Earth hit by a major CME today: http://www.dcs.lancs.ac.uk/iono/aurorawatch/ Unfortunately hit around UK miday but sparked auroras elswhere in...

I guess this is abit of a simple(ton) question, but I can't really work it out. There's an amazing difference between this month's moon and the last two. The...

Hello, I plan to buy a 150 mm dia. f/4 Newton from OO. Do you have any experience with these telescopes? Thank you for your help. Cheers Chris