Making a Telescope At Home (DIY)  

Wow that's actually amazing to hear. I am born after 2000 and people interested in astronomy are really hard to find these days. I wonder what kind of skies would be there in 1982-84 lol, it's one thing that I want to see in my life. Telescopes are expensive and not everyone can afford them. I am also thinking to make my own telescope in future. if you can give me some tips I would really appreciate that, thanx!

@@ICEcoldAryan Know your limitations, build what you can, source stuff second hand if not (if you can). The biggest decision is whether to make your own optics or not. I've been told that anybody can make a mirror (some of my friends did, I didnt, I was lucky to be able to borrow 8" optics). I was advised to make a 4 inch f/12 newtonian primary mirror first (1/4 wave spherical figure is attainable by a first timer, and will be diffraction limited at this focal length). That way you can learn the basic grinding polishing and testing skills quickly, and have a good entry level telescope to use while you move on to an 8" (It is considerably harder and will take longer - much more polishing and it needs parabolizing). An ~f/6 8" Dob is a sweet-spot instrument!. It'll serve you well for a long time. Most people will buy eyepieces and secondary prism/mirrors (second hand) and maybe spiders, focussers, and mirror cells too - but these are fairly easy to make. A cheap prism will work as a diagonal on an entry level 4". If you go to the 8" It will work too, but you'll probably want to buy an elliptical flat. If you build a dobsonian design that can take an 8" f/6 optical tube you can also fit the 4" tube into it saving double fabrication. In the old days you could buy all the chemicals to silver mirrors yourself. I'm not sure nowadays if that's possible (some are poisonous). It will depend on where you live. There are old books on this, and stuff online if you google.

My best skies were in 1974 during a period of political unrest in the UK. Elecrtic power was rationed and there were regular blackouts, but I had access to a local observatory which had a giant 10" Cooke refractor driven by clockwork.

@@amp2amp800 that was a lot of knowledge, thank you very much for that. Considering today's market I'll find hard time to find second hand optics as not very much shops are there who actually sell astronomy stuff dedicatedly but I'll try to find anyways. Yea, I am considering an 8" inch dob for my build but it's gonna be a little hard as I have never made one before. And for other stuff like tube, base and focuser, they are fairly easier to make. Again Thank you so much.

Has nothing to do with smartphones since people still look build telescopes ?

Anand Traders in New Delhi. Amazon all so available

You can make your own with 2 mirrors

Nope

Convex

Lens

@@kunals_Astrophotography with the plane mirror?

Give me link for lens and eyepiece