How to design a telescope guys?

In summary: They generally use a heavier mount and can be quite expensive. A 6" Cassegrain will set you back around $2500.In summary, the easiest and most beginner-friendly type of telescope to make is a reflector with a Dobsonian mount.
  • #1
Alawadhi
1
0
Hi and hello. I’m new here and this is my first post. How to design a telescope guys?
 
Astronomy news on Phys.org
  • #2
That's a HUGE question and is something on which there is TONS of literature. Don't expect a five minute step by step set of instructions. Take the initiative! :smile: Look it up online, at the library, ask members of the local astronomy club etc. I hear some of the veteran members of those clubs even grind their own mirrors from scratch! Local science centres tend to have camps for telescope-building (if you are a kid, that is--otherwise it's a solo project for you). I have never attempted it, but I want to, when school is not so pressing. It's a great amateur project, and you will have fun. Just decide what kind of telescope best serves your observing interests and practical needs. What aperture size? What design? Reflector or refractor? Good luck man... :wink:
 
Last edited:
  • #3
One needs a knowledge of optics and the physics of light.

For the best image, I would recommend a reflector telescope, and the best type appears to be a Dobson type, and something on the order of 15 inches (38 cm).

Here are some plans - http://members.aol.com/sfsidewalk/intro.htm [Broken]

or http://www.willbell.com/tm/dobtel.htm

or buy a Dobson - http://telescopes.com/johndobson.htmlhttp://telescopes.com/johndobson.html

recommendation - http://www.phys.vt.edu/~jhs/dobsonian.html

Notes from John Dobson's telescope making class
http://sfsidewalkastronomers.org/telescopes/building/dobnotes [Broken]

and his site - http://www.johndobson.org/index.html [Broken]
and http://www.sidewalkastronomers.com/index.html

Finally, if you are obsessed - http://www.globaldialog.com/~obsessiontscp/OBHP.html [Broken] :biggrin:
 
Last edited by a moderator:
  • #4
Astronuc said:
Finally, if you are obsessed - http://www.globaldialog.com/~obsessiontscp/OBHP.html [Broken] :biggrin:

WOW...
 
Last edited by a moderator:
  • #5
I second Astronuc's suggestion.

If you are a first-timer, I would recommend you try your hand at a simple Newtonian (reflector) scope with a Dobsonian mount. These are reasonably uncomplicated as far as construction is concerned, and you can buy all the parts you need for about a couple of hundred dollars (US). The dominant cost is in the primary mirror - and if I recall correctly, you can buy a decent 6" or 8" mirror for about a hundred bucks. Other notable costs will be in the secondary (diagonal) mirror and in eyepieces. The body and mount can be made from relatively cheap raw materials. Access to a woodshop or woodworking tools will be most useful.

While the dobsonian is the easiest "nice" telescope to make, it has drawbacks in that the mount is usually bulky and the scope itself is fairly long (3 to 4 ft long for a 6 to 8 inch scope).

I've referred to [URL [Broken] this site, and found it quite nice.

Cassegrain scopes are much fancier (smaller for a given resolution) than Newtonian scopes but are way harder to build.
 
Last edited by a moderator:

1. How do I determine the optimal size and focal length for a telescope?

The optimal size and focal length for a telescope depend on the type of observations you want to make. For general stargazing, a telescope with a larger aperture and shorter focal length is ideal. For planetary viewing, a longer focal length is preferred. Consider your specific needs and research different telescope models to determine the best size and focal length for your purposes.

2. What is the difference between a refracting and reflecting telescope?

A refracting telescope uses lenses to gather and focus light, while a reflecting telescope uses mirrors. Refracting telescopes are better for viewing bright objects like planets and stars, while reflecting telescopes are better for fainter objects like galaxies and nebulae. Reflecting telescopes also tend to have a larger aperture, making them better for light-gathering capabilities.

3. How can I improve the image quality of my telescope?

There are several factors that can affect the image quality of a telescope. Some of the most important factors include the quality and precision of the optics, the stability of the mount, and the atmospheric conditions. Investing in high-quality optics and ensuring proper alignment and stability can greatly improve image quality. Additionally, observing on clear, dark nights with minimal atmospheric distortion can also enhance the viewing experience.

4. How can I make my telescope more portable?

One way to make a telescope more portable is to invest in a collapsible or compact model. These telescopes can be easily disassembled and packed away for travel. Another option is to use a smaller tripod or mount for your telescope. Additionally, using lightweight materials for the telescope body and accessories can also make it easier to transport.

5. Can I build my own telescope?

Yes, it is possible to build your own telescope. However, it requires a significant amount of knowledge and skill in optics and mechanics. There are many online resources and guides available for building a telescope, but it is recommended to have some prior experience and assistance from someone with expertise in telescope construction.

Similar threads

  • Astronomy and Astrophysics
Replies
34
Views
829
  • Astronomy and Astrophysics
Replies
25
Views
1K
  • Astronomy and Astrophysics
Replies
5
Views
1K
  • Astronomy and Astrophysics
Replies
6
Views
2K
  • Astronomy and Astrophysics
Replies
12
Views
1K
  • Astronomy and Astrophysics
4
Replies
125
Views
4K
  • Astronomy and Astrophysics
Replies
7
Views
2K
  • Astronomy and Astrophysics
Replies
17
Views
2K
  • Astronomy and Astrophysics
Replies
8
Views
11K
  • Astronomy and Astrophysics
Replies
17
Views
2K
Back
Top