Sky at Night Magazine

Can a periscope or a telescope make you see other planets? And if not then what is the instrument that can make you see out of this world? Cause my son wants one. HELP!!!!!!!!!!!!!!!!!!!!!!!
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You will gain experience in using your telescope especially if you direct your attention to the main points of quality. You will find in time that you will become critical of imperfections of your telescope, casual or inherent. When you test your telescope's optics, you should be careful and pay close attention to your own eyesight and be guided by proper directions and only then will you have a good idea of the quality of ...

Hi all, was wondering if there are any uk based optical mirror suppliers? I,ve been given an unwanted telescope,think its a seben 1400/150 yuk! i,ve got new barlow and new plossl,s (celestron) but the mirror looks naff and i am unable to get a sharp focus so rather than throw it out ,i am wondering if i can buy better quality primary and secondary mirror and end up with a usable scope. i,ve recently retired ...

I am heading to a metal fabricators tommorow to hopfully get my wedge made for my lx90

i have been 2 hours tonight making a blue peter type model as it hard to explain even with drawings so i thought i would post my sticky back and cardboard wedge




local://3339/4321269077A44E93A58F6BE7648E1D71.jpg

I have had these babies in a box for a year...

so it's time to do something with them...

I don't need a new shaving mirror...

so thought an 8 inch f6 Newtonian might make use of them...

I have some heavy cardboard tube and a load of tools.

Will use this part of the forum to 'Document?' my build..

... hopefully right up to mounting and using it.

Keep a watch out for updates ...

Hi, just a quickie....

Anyone know of any UK sources where I could get a 2" (short axis) secondary mirror for my 10" dob project?
I already know about 'Galvoptics', but was wondering if there are any other UK sources.
Thanks

Carlos

Loop alarms are like the ones used in shops to stop you walking away with the items on show... well make a load of noise if you try.

B&Q do a Friedland shed alarm kit for £10.98 which gives 15s exit and entry delay before the alarm sounds - I use one on the observatory.

The 15s delay is a bit long for a loop alarm so a bit of scoping around the circuit shows ...

I picked up a TEC Cooling kit from the Meade DSI Cameras from a guy in the US on EBay for £30 delivered ..

It took me about an hour to dis-assemble the camera , machine the case and then rebuild with the TEC, Fan and Heat spreader in place...

Here are the first "darks"

Firstly a 2 min exposure at room temp with the CCD at 31.5C as reported by the DSI II

http://www.btinternet.com/~psmithuk/stuff/2minnotec31_5C.jpg ...

Funds are tight so its bits at a time...so its scrounging time... managed to scrounge the timber for the frame...

Decided to get some walls up so at least I can rig a temporary roof when rain threatens...

Only the first fix of the timber structure so far...

12 sided aligned 12 o' North wwill haev double opening doors between 5 and 7 o'clock..

2.4m internal min diameter... to 1.5m high...

Framing will either be ...

If you are building the telescope which we had in our 'How to build your own telescope' features earlier this year, in the magazine, then why not post up some pictures and tips on how you are getting on? We've had a great response and it's great to see some pictures appearing on the forum.