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Exploring the Universe, Sharing its Wonders

The International Gemini Observatory consists of twin 8.1-meter diameter optical/infrared telescopes located on two of the best observing sites on the planet. From their locations on Maunakea in Hawai‘i and Cerro Pachón in Chile, Gemini Observatory's telescopes can collectively access the entire sky.

The international Gemini Observatory is operated by NSF NOIRLab.

About Gemini

Operations Updates

November 19, 2024

Science Operations Announcements

Updated 2024B OT Available
November 13, 2024

Fast Turnaround Call For Proposals

November 2024 Call for Proposals
August 30, 2024

General Announcements

2025A Call for Proposals Released
June 13, 2024

General Announcements

24B Programs and Schedule Announced!
More Operations Updates

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Access the Calls for Proposals
Semester Program: 2025A CfP Closed
Large and Long Program: 2024B LLP CfP Closed
Fast Turnaround: This month's CfP Open

Press Releases

Gemini North Captures Galactic Archipelago Entangled In a Web Of Dark Matter

Gemini North Captures Galactic Archipelago Entangled In a Web Of Dark Matter

October 21, 2024
Radiant Stars at the Heart of a Cosmic Rose

Radiant Stars at the Heart of a Cosmic Rose

October 1, 2024

Gemini North Captures Starburst Galaxy Blazing Bright With Newly Forming Stars

Gemini North Captures Starburst Galaxy Blazing Bright With Newly Forming Stars

June 25, 2024

International Gemini Observatory and Subaru Combine Forces to Discover First Ever Pair of Merging Quasars at Cosmic Dawn

International Gemini Observatory and Subaru Combine Forces to Discover First Ever Pair of Merging Quasars at Cosmic Dawn

June 17, 2024

Gemini South Reveals Origin of Unexpected Differences in Giant Binary Stars

Gemini South Reveals Origin of Unexpected Differences in Giant Binary Stars

April 29, 2024

More Press Releases

International Gemini Observatory Participants

The International Gemini Observatory  provides the astronomical communities in six participant countries with state-of-the-art astronomical facilities that allocate observing time in proportion to each country's contribution. In addition to financial support, each country also contributes significant scientific and technical resources. The national research agencies that form the Gemini partnership include: the US National Science Foundation (NSF), the Canadian National Research Council (NRC), the Chilean Agencia Nacional de Investigación y Desarrollo (ANID), the Brazilian Ministério da Ciência, Tecnologia e Inovação, the Argentinean Ministerio de Ciencia, Tecnología e Innovación, and the Korea Astronomy and Space Institute (KASI). The observatory is managed by the Association of Universities for Research in Astronomy, Inc. (AURA) under a cooperative agreement with the NSF. The NSF also serves as the executive agency for the international partnership.

U.S. National Science Foundation (NSF) logo
  • Canadian National Research Council (NRC) logo
  • Chilean Agencia Nacional de Investigación y Desarrollo (ANID) logo
  • Brazilian Ministério da Ciência, Tecnologia e Inovação logo
  • Argentinean Ministerio de Ciencia, Tecnología e Innovación logo
  • Korea Astronomy and Space Institute (KASI) logo
  • Association of Universities for Research in Astronomy, Inc. (AURA) logo

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Observing

    • Start here!
    • Phase I: Proposing for Time
    • Phase II: Requesting & Monitoring Observations
    • Phase III: Retrieving & Reducing Data
    • Getting Help
    • Schedules and Queue
    • Resources
    • Science Operations Statistics
    • Telescopes and Sites
    • Policies Regarding Observing
    • Visiting Gemini
    • Operations Development

Instrumentation

    • Current Instruments
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    • Visiting Instrument Program
    • Instrument Upgrade Program
    • Retired Instruments
    • Performance Monitoring
    • Timing information in Gemini Instruments

About

    • Conduct
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    • Gemini Telescopes, Science and Technologies
    • Gemini In The Era of Multi-Messenger Astronomy
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Learn

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