Society for Popular Astronomy

Sorry, stupid question. I have just worked out what I need.

Should have put my brain in gear before posting

Steve

I have a pair of Bresser 10 x 50 binoculars, nothing special, Lidl's bargain. Printed on the back is 120m/1000m which I guess is a standard field of view measurement. How does this translate to the area of sky I could see? I have tried to work it out by looking at the separation between known stars ...

Chris

I hope you enjoyed your first view of Saturn, well done. It is special when seen for the first time.

Sorry I couldn't get down to help but as I said in my pm things are somewhat busy with us at the moment.

Do you think you have got your problems sorted?

Regards
Steve

Live link to the preparations for the new European Extremely Large Telescope - by blowing the top off a mountain. That's the way to do it!

Today between 5.30 and 7.30 hopefully

http://new.livestream.com/ESOAstronomy/ ... ndbreaking

Cheers
Steve

Chris Compared to many others on this site I am very much an amateur at this game but my suggestion would be that you need to sort out problems one at a time. Firstly - If the focuser tube is loose then you need to try and find out why and get it as tight as possible. It is difficult to sort out thi...

Chris Slight edit to clear up some points I don't post on here very often but I hope this will help. Have you tried getting everything lined up in daylight, it is much easier than fiddling around in the cold and dark. My suggestion would therefore be, Set up in daytime somewhere where you have a goo...

No, it will all be OK if you stand on your head.

I have had a serious interest since early teenage years. However I did not get to look through a reasonable scope untill aged 57.

That's a heck of a wait for clear skies!

Cheers
Steve

Hope it's not damaged the patio too badly

Cheers
Steve
(sorry, had to be done)

First make sure your finder scope is aligned with the main scope. Do this during the day by finding a selected object on the horizon in the main scope and the aligning the finder scope on the same spot. BE CAREFUL of not looking at the sun don't point the scope anywhere near it Then as a first step ...

So if there is no deceleration/acceleration involved then why is the speed in different materials different?. The particles of the material may as well not be there if they don't affect the speed of the photon. An opaque material stops all photons, (does it get warmer or heavier), a transparent mate...

OK so if the speed of light is different between travelling in air and in a vacuum it makes me wonder what is happening when propagating through air or in something close to a vacuum. Presumably in any fluid or solid for that matter it is a full vacuum between the particles so do the photons travel ...

Try netweather.com

I think all the sites use a different random number generator as a basis for their predictions. If they all used the same one then at least they would all be consistent(ly wrong)

Cheers
Steve

An absolutely lovely image

Congratulations

Steve

I mounted the Skywatcher RDF piggyback on my finder scope on a 200mm reflector. It's easy to align all 3 units and then use the RDF to get close to the area of interest, then move to the finder and main scope for final alignment. It may not look pretty, just held on with a jubilee clip, but it works...