Page 1 of 2: Exploring the universe-Telescopes

SHASHANK_9 · Credits: 10372 My Scrapbook

Hi everybody, Astronomy is one of the fascinating and exciting area. Ever since my childhood i wanted to explore the universe with my own eyes- The Real thing and today this view is again ignited after watching a tv show. To do so i need a telescope. Being an amatuer i need your help guys. let me know what are the brands{like orion}, where available in india, price, which one to buy etc. i hope you all will show interest. Thanks

blue_mars · Credits: 32045 My Scrapbook My Reading List 3 Books

sorry for not replying quickly..
It is my favourite topic and hobby...
I will post all the basic information I know about telescopes and will also post my brand new telescope pictures.
I feel proud when I am showing off my Telescope and my previous car Photos you see

...

SHASHANK_9 · Credits: 10372 My Scrapbook

Thanks blue_mars

. i was expecting reply from you and BGM. you own a telescope,thats cool. you have a reason to be proud

pearlly_sun · Credits: 225 My Scrapbook

BGM · Credits: 104516 My Scrapbook

Blue is the expert in this topic Shashank.

I am totally ignorant about telescopes!
Thats why i was a little late in replying.
My skills regarding telescopes are limited to bird watching only.

Well that was not really a telescope, it was a binocular.

blue_mars · Credits: 32045 My Scrapbook My Reading List 3 Books

There are three main types of optical telescopes.

1) Refractors - lens gathers light.

2) Reflectors - mirror gathers light.

3) Catadioptrics - a combination of lenses and mirrors are used to gather light.

All three types have their own advantages and dis advantages.... before going to that let us see some of the most important features of the telescopes.

blue_mars · Credits: 32045 My Scrapbook My Reading List 3 Books

Most important features you should look for before buying the telescope..

Not in a order

1 Mount (stand) (alt-azimuth and equatorial.)

2 Aperture

3 Focal length

4 Focal ratio

And never ever buy telescope by looking at its magnification… ..

blue_mars · Credits: 32045 My Scrapbook My Reading List 3 Books

let us see advantages and disadvantages

Refractors:

Advantages :-

* Easy to use simple design.
* Little or no maintenance
* Excellent for moon and planets
* Good for distant terrestrial viewing
* Sealed optical tube protects optics and reduces image problems
* Lenses are permanently mounted and aligned

Disadvantages

* very expensive
* Heavy, longer and bulky

blue_mars · Credits: 32045 My Scrapbook My Reading List 3 Books

Reflector

Reflectors use a concave mirror to focus light onto a secondary mirror that in turn reflects the image into the eyepiece, mounted on the side of the barrel. This process creates greater magnification.

Advantages:-

• Lowest cost
• compact and portable
• Larger available apertures provides for excellent viewing of faint objects, such as remote galaxies, nebulae and star clusters.
• deliver very bright images

Disadvantages:-

• Generally not for terrestrial objects
• Slight light loss

blue_mars · Credits: 32045 My Scrapbook My Reading List 3 Books

Before i post about Catadioptrics i just want to warn you that telescope is very addictive i mean very very addictive. and it will make you do monkey things.... for example: when i saw Saturn with his beautiful rings in my telescope..... i was jumping all over in my balcony and was calling all my friends to visit my home.... and it was 12 am....

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