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Lining OTA with cork

I have seen Newtonians lined with cork on the inside of the optical tube, supposedly to reduce thermals in the tube. Is this likely to be of much benefit on my Orion Optics 10" Newt? Or would it be better to fit a 12V fan below the primary mirror? Thanks!
Read more : Lining OTA with cork | Views : 4132 | Replies : 2

Design for a Lightbox for an ST102 ?

Hi Guys

Has anyone got a design for a homemade Lightbox for an ST 102 ?


Read more : Design for a Lightbox for an ST102 ? | Views : 3229 | Replies : 1

Any f/8 f/12 'Planetonians" out there

Anyone making in the UK reflectors for planetary work?
Read more : Any f/8 f/12 'Planetonians" out there | Views : 3323 | Replies : 3

Can a periscope or a telescope make you see other planets?

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!!!!!!!!!!!!!!!!!!!!!!!
Polo Shirt Printing T shirt Embroidery
Read more : Can a periscope or a telescope make you see other planets? | Views : 997 | Replies : 0

Testing the optics of your telescope

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 ...
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help with rebuild

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 ...
Read more : help with rebuild | Views : 3855 | Replies : 11

homemade wedge of to be made tomorrow

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

Read more : homemade wedge of to be made tomorrow | Views : 4632 | Replies : 12

Let Project 'Skye-Scope' Begin....

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 ...
Read more : Let Project 'Skye-Scope' Begin.... | Views : 1050 | Replies : 3

Source for secondary

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.

Read more : Source for secondary | Views : 537 | Replies : 0

A cheap and noisy "loop" alarm

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 ...
Read more : A cheap and noisy "loop" alarm | Views : 2059 | Replies : 8


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