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Gemini Planet Imager (GPI): Cleared for Shipment to Gemini South!

In a milestone statement distributed moments ago by the GPI Pre-delivery Acceptance Review Committee, Chair Stephen Goodsell announced that GPI is now clear for shipment from the University of California Santa Cruz to Gemini South in Chile.The Committee’s final report is slated for release on July 26th, but a statement sumarizing the results of the review is available now - GPI Review Committee: Final Day Statement  41 KB


Gemini e-Newscast #29 -- March 2, 2011

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Gemini IRAF 1.4 Released
July 20, 2017


FLAMINGOS-2 is a near-infrared imaging spectrograph at Gemini-South, offering observations in the 1.0-2.4 μm wavelength range in a 6.1 arcmin circular field of view. Currently, imaging and long-slit spectroscopy modes are offered, while the multi-object spectroscopy mode is awaiting its commissioning.

Multi-Object Spectroscopy with GMOS-N/S and FLAMINGOS-2

This is a top level summary page about Multi-Object Spectroscopy (MOS) at Gemini.

Gemini North in scheduled shutdown until August 25

Gemini North as of July 10 2017 is in a scheduled shutdown for dome shutter repair and instrument maintenance. The shutdown is planned to be completed by August 25 2017.

July 2017 Call for Proposals

Gemini North and South are accepting proposals for the Fast Turnaround (FT) program. Here, we give information specific to this proposal cycle. Please see the other FT pages - particularly the rules - for general information about the program. FT-specific proposal templates must now be used for all FT proposals; see the "PIT information" section below. The revised 2017B PIT must be used

GMOS Reduction Cookbook


The GMOS Data Reduction Coobook is hosted on the US NGO pages and can be found here (will open in a new window). 

Striking Gemini Images Point Juno Spacecraft Toward Discovery

Figure 1. A composite color infrared image of Jupiter reveals haze particles over a range of altitudes, as seen in reflected sunlight. The image was taken using the Gemini North telescope with the Near-InfraRed Imager (NIRI) on May 18, 2017, one day before the Juno mission’s sixth close passage (“perijove”) of the planet. The color filters cover wavelengths between 1.69 to 2.275 microns and are sensitive to pressures of 10 millibars to 2 bars.

Korean Astronomers Dissect a Fragmented Asteroid

Figure 1. Rotational light curve of the largest fragment of P/2010 A2. Time-series g’-band photometry over two nights (upper panel) and phase based on the best-fit double-peaked period of 11.36 hr (lower panel). A sine curve with a period of 11.36 hr was plotted in the upper panel (gray line).