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This page shows Gemini's current facility and visiting instruments, and retired instruments. The expected instrument availability for the coming semester is given in the current Call for Proposals; information for the current and previous semesters (and the next semester when finalised) can be found in the schedules section.
Information about Gemini's instrument development program, may be found on the Future Instrumentation Plans page. A summary of Gemini's ongoing adaptive optics program is also available.
|*To be available in Semester 2016A. See instrument web pages for details.|
|GMOS (multi-object, long-slit and IFU spectrograph and imager)||NIRI (1-5µm imager)||GCAL (facility calibration unit)|
|GRACES (0.4-1.0μm high resolution spectrograph)||NIFS (1.0-2.5µm integral field spectrograph)||ALTAIR (facility natural/laser guide star AO system)|
|GNIRS (1-5µm long-slit and 0.9-2.5µm cross-dispersed spectrograph; formerly at Gemini South)|
|TEXES*(10-20µm high resolution spectrograph)|
Gemini South Instruments
**Instrument expected to be available in 2016A. See instrument pages for details.
|GMOS (multi-object, long-slit and IFU spectrograph and imager)||GCAL (facility calibration unit)|
|GSAOI (high-resolution imager for use with Multi-Conjugate Adaptive Optics system "GeMS")||GeMS (Multi-conjugate adaptive optics system)|
|GPI (adaptive-optics imaging polarimeter/integral-field spectrometer)|
|FLAMINGOS-2 (long-slit spectrograph and imager)|
|DSSI/Speckle**(diffraction-limited optical imager)||Phoenix**(high-resolution spectrograph)|
The following instruments are no longer available for science use. Their web pages will be available indefinitely, to support data processing and analysis of distributed and archived data, but may not be updated.
- The Acquisition Cameras are no longer offered for science use.
- bHROS, a high-resolution optical spectrograph, has been retired.
- CIRPASS (near-IR Integral Field Unit spectrograph) was offered as a visiting instrument, loaned by the University of Cambridge, during 2002-2003.
- Flamingos-I (near-IR imager and multi-object spectrometer) was offered as a visiting instrument, loaned by the University of Florida, on Gemini South.
- Hokupa'a-36 / QUIRC (natural guide star adaptive optics system and its near-IR camera) was offered as a visiting instrument, loaned by the University of Hawaii for early science on Gemini North. It is has since been replaced by the facility AO system Altair.
- Michelle (10-20µm imager/ spectrometer; imaging polarimetry)
- NICI (coronagraphic imager)
- NIRSPEC (near-IR spectrograph on Keck) was offered to the Gemini community for limited use during 2000-2001.
- OSCIR (mid-IR imager/spectrometer) was offered as a visiting instrument, loaned by the University of Florida for early science on Gemini North and, more recently, on Gemini South. It was replaced by the facility mid-IR instruments Michelle and T-ReCS.
- T-ReCS (formerly known as MIRI; imager and spectrometer)