NOAO >  The O/IR System >  Telescopes

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The Ground Based Optical/Infrared System

Telescopes with aperture greater than or equal to 3.5m



Public Access


AEOS = Advanced Electro-Optical System

3.67-m telescope on Haleakala, Maui, owned/operated by US Air Force.

50 nights per year available through NSF proposal — see NSF solicitation 01-66

ARC = Astrophysics Research Consortium Telescope

3.5-m telescope at Apache Point Observatory on Sacramento Peak, New Mexico, owned/operated by Astrophysics Research Consortium.


CFHT = Canada-France-Hawaii Telescope

3.6-m telescope on Mauna Kea, Hawaii. The University of Hawaii holds a x% share.


Hale Telescope

5-m telescope at Palomar Observatory, California


HET = Hobby-Eberly Telescope

9.2-m telescope (fixed-elevation) at McDonald Observatory, Texas. U.S. universities (U. Texas, Penn State U., Stanford U.) hold a x% share

27 nights per year for 6 years through standard NOAO proposal process and

International Gemini Observatory

Two 8-m telescopes, one on Mauna Kea, Hawaii, one on Cerro Pachon, Chile. The National Science Foundation holds a 47.6% share of the two telescopes.

Approximately 41% of time available to U.S. proposers; rest to international partners.

Keck Telescopes

Two 10-m telescopes on Mauna Kea, Hawaii; NASA holds a 1/6 share of the two telescopes

NASA time (~43 nights/semester) is publicly available.

LBT = Large Binocular Telescope

Two 8.4-m telescopes on Mount Graham, Arizona; U.S. universities hold a 50% share.


Magellan Telescopes

Two 6.5-m telescopes on Las Campanas, Chile


MMT = Multiple Mirror Telescope

6.5-m telescope on Mount Hopkins, Arizona

27 nights per year for 6 years through standard NOAO proposal process and

NOAO = National Optical Astronomy Obsevatory

Blanco 4-m telescope and SOAR 4.2-m telescope (31% share; science operations to begin in mid-2003) at Cerro Tololo, Chile; Mayall 4-m telescope and WIYN 3.5-m telescope (40% share) at Kitt Peak, Arizona

100% public access

WIYN = Wisconsin-Indiana-Yale-NOAO Telescope

3.5-m telescope at Kitt Peak, Arizona

Aside from 40% NOAO share, no additional public access

NOAO >  The O/IR System >  Telescopes

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