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Phase I: Proposing for Time PIT Standard Semester Program TAC PW LLP FT DDT Queue Classical PV ToO Eavesdropping Joint Proposals Phase II: Requesting & Monitoring Observations OT OT/Phase II Checklist Instructions Useful to know Non-Sidereal Targets Phase III: Retrieving & Reducing Data Downloading and Understanding the Data Reducing the Data Getting Help Acknowledging Gemini Providing Feedback Getting Help Submit a General Helpdesk Request Schedules and Queue Nightlog GN Nightlog GS 2024A Classical Schedule 2023B Classical Schedule 2023A Classical Schedule Queue Summary (Bands, DD, LP, FT, PW) Previous Semesters Resources Magnitudes and Fluxes Multi-Object Spectroscopy Near-IR Resources Optical Resources Integration Time Calculator (ITC) Advice Available Filters Science Operations Statistics Historical statistics Telescopes and Sites Telescopes Sites Policies Regarding Observing Visiting Gemini Graduate Student Visitor Program Visitas al telescopio Maunakea Visitor’s Guidelines Operations Development Instrumentation Current Instruments Altair GHOST IGRINS NIRI TEXES GNIRS NIFS GMOS GeMS Flamingos 2 GSAOI `Alopeke & Zorro GRACES MAROON-X Future Instruments Specs and Documents SCORPIO GIRMOS IGRINS-2 GPI 2.0 GNAO Visiting Instrument Program Telescope Interfaces Instrument Upgrade Program Previously Awarded Updates 2017 Request for Proposals Retired Instruments Performance Monitoring Timing information in Gemini Instruments About Conduct Contact Us Gemini Contact Scientists Gemini Research Staff Careers and Jobs Publications Gemini Publication Inclusion Criteria Gemini Telescopes, Science and Technologies Gemini In The Era of Multi-Messenger Astronomy GEMMA Team Publications GEMMA Outreach Documents Governance Participant Shares Web Accessibility Gemini Strategic Planning News Gallery Images Videos CloudCam Learn Virtual tour Activities at Gemini Live From Gemini AstroDay Chile Viaje Al Universo Journey Through The Universe Facility Tours Gemini Card Game Events Gemini Science Meetings Gemini at National Meetings Topical Science Meetings 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’s NOIRLab. About Gemini Announcements December 18, 2023 General Announcements 24A Programs and Schedule Announced! April 29, 2024 Instrument Announcements GMOS tutorial on flexure-induced wavelength shift correction using sky lines April 15, 2024 General Announcements Hilo Staff Recognized by Awards from the Association of Universities for Research in Astronomy April 3, 2024 Science Operations Announcements DRAGONS v3.2 Released - GHOST and new GMOS-S CCDs Support All Announcements Access the Calls for Proposals Semester Program: 2024B CfP OpenClosed Large and Long Program: 2024B LLP CfP ClosedOpen Fast Turnaround: This month’s CfP Open Press Releases & Features April 24, 2024 | Press Release Gemini South Reveals Origin of Unexpected Differences in Giant Binary Stars February 29, 2024 Press Release Astronomers Measure Heaviest Black Hole Pair Ever Found December 14, 2023 Press Release Big Astronomy Planetarium Show Now Available for Free Download November 22, 2023 Press Release NSF’s NOIRLab On Track to Reduce Carbon Emissions by Half November 8, 2023 Press Release Gemini North Reveals the Formation of Dense Dwarf Galaxy ‘Fossils’ All News 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. Follow Gemini Observatory 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 Future Instruments Visiting Instrument Program Instrument Upgrade Program Retired Instruments Performance Monitoring Timing information in Gemini Instruments About Conduct Contact Us Careers and Jobs Publications Gemini Telescopes, Science and Technologies Gemini In The Era of Multi-Messenger Astronomy Governance Participant Shares Web Accessibility Gemini Strategic Planning Gallery Images Videos CloudCam News Press Releases Web Features Gemini e-Newscast GeminiFocus News Archive Learn Virtual tour Activities at Gemini Facility Tours Gemini Card Game Events Gemini Science Meetings Gemini at National Meetings Topical Science Meetings Gemini Observatory Error The website encountered an unexpected error....