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Bringing the Universe Down-to-Earth in Chile


ALTAIR (ALTtitude conjugate Adaptive optics for the InfraRed) is the facility natural/laser guide star adaptive optics system of the Gemini North telescope.

2014A Proposal Deadlines Start Today!

The Gemini 2014A proposal deadlines are approaching fast!

The 2014A Call for Proposals may be found here:

The individual partner deadlines are listed below, but please check your National Gemini Office web page for details.

United States: Thursday September 26 at midnight MST

Viaje al Universo - Monday September 30th to Friday October 4th

Viaje al Universo (Del 30 de septiembre al 4 de octubre)

Observations Set Limits on Possible Atmosphere Around Distant World



The peripheral wavefront sensors (PWFS) vignette a large part of the GMOS science field. Furthermore, it has been found that there is significant flexure between GMOS and the PWFSs. At this time it is therefore recommended to use the on-instrument wavefront sensor for all GMOS observations with the exception of non-sidereal tracking, since the OIWFS implementation is purely electronic and limited to a small field of view.