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Top 10 Biggest Telescopes in the World

Telescopes are optical instruments that make distant objects appear magnified by using an arrangement of lenses or curved mirrors and lenses, or various devices used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. In this article, we are giving the list of top 10 Biggest Telescope in the World along with their location, built date and their aperture size, which is very useful for the competitive examinations like UPSC-prelims, SSC, State Services, NDA, CDS, and Railways etc.
Oct 23, 2018 19:07 IST
Top 10 Biggest Telescopes in the World

Telescopes are optical instruments that make distant objects appear magnified by using an arrangement of lenses or curved mirrors and lenses, or various devices used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. The word telescope was coined in 1611 by the Greek mathematician Giovanni Demisiani for one of Galileo Galilei's instruments presented at a banquet at the Accademia dei Lincei. It can be classified by the wavelengths of light they detect:

1. X-ray telescopes (using shorter wavelengths than ultraviolet light)

2. Ultraviolet telescopes (using shorter wavelengths than visible light)

3. Optical telescopes (using visible light)

4. Infrared telescopes (using longer wavelengths than visible light)

5. Submillimetre telescopes (using longer wavelengths than infrared light)

6. Fresnel Imager (an optical lens technology)

7. X-ray optics (optics for certain X-ray wavelengths)

Top 10 Biggest Telescopes in the World

The list of Top 10 Biggest Telescope in the World along with their location, built date and their aperture size are discussed below:

10. Gemini South, Cerro Tololo Inter-American Observatory

Location: Chile

Built in (Date or Year): 2001

Aperture Size: 318 inches

9. Yepun, Paranal Observatory

Location: Chile

Built in (Date or Year): 2001

Aperture Size: 323 inches

8. Melipal, Paranal Observatory

Location: Chile

Built in (Date or Year): 2000

Aperture Size: 323 inches

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7. Kueyen, Paranal Observatory

Location: Chile

Built in (Date or Year): 1999

Aperture Size: 323 inches

6. Antu, Paranal Observatory

Location: Chile

Built in (Date or Year): 1998

Aperture Size: 323 inches

5. Subaru, Mauna Kea Observatory

Location: Hawaii, U.S.A

Built in (Date or Year): 1999

Aperture Size: 323 inches

4. LBT, Mount Graham Observatory

Location: Arizona, U.S.A

Built in (Date or Year): 2004

Aperture Size: 330 inches

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3. SALT, South African Astronomical Observatory

Location: Northern Cape, South Africa

Built in (Date or Year): 2005

Aperture Size: 362 inches

2. Keck 1 and Keck 2, Mauna Kea Observatory

Location: Hawaii, U.S.A

Built in (Date or Year): 1993 and 1996 (respectively)

Aperture Size: 394 inches each

1. Gran Telescopio Canarias

Location: Canary Islands, Spain

Built in (Date or Year): 2009

Aperture Size: 409 inches

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Top 10 Biggest Telescopes in the World

Name of Telescope

Description

1. Gran Telescopio Canarias

Location: Canary Islands, Spain

Built in (Date or Year): 2009

Aperture Size: 409 inches

2. Keck 1 and Keck 2, Mauna Kea Observatory

Location: Hawaii, U.S.A

Built in (Date or Year): 1993 and 1996 (respectively)

Aperture Size: 394 inches each

3. SALT, South African Astronomical Observatory

Location: Northern Cape, South Africa

Built in (Date or Year): 2005

Aperture Size: 362 inches

4. LBT, Mount Graham Observatory

Location: Arizona, U.S.A

Built in (Date or Year): 2004

Aperture Size: 330 inches

5. Subaru, Mauna Kea Observatory

Location: Hawaii, U.S.A

Built in (Date or Year): 1999

Aperture Size: 323 inches

6. Antu, Paranal Observatory

Location: Chile

Built in (Date or Year) : 1998

Aperture Size: 323 inches

7. Kueyen, Paranal Observatory

Location: Chile

Built in (Date or Year) : 1999

Aperture Size: 323 inches

8. Melipal, Paranal Observatory

Location: Chile

Built in (Date or Year) : 2000

Aperture Size: 323 inches

9. Yepun, Paranal Observatory

Location: Chile

Built in (Date or Year) : 2001

Aperture Size: 323 inches

10. Gemini South, Cerro Tololo Inter-American Observatory

Location: Chile

Built in (Date or Year): 2001

Aperture Size: 318 inches

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