Complementing Space Telescopes from the Ground

Gemini North Adaptive Optics (AO) image of crowded star field in the bulge of M31. The near-infrared color composite image (J,H,K) was obtained as part of the research by Olsen et al., to study star formation histories in the disk and bulge of M31 (as described in the accompanying press release). The bright star at center is a foreground Milky Way star used as the AO guide star to sample atmospheric turbulence. The image is 20 arcseconds on a side, or roughly the angle spanned by a small grain of sand held at arm’s length.Image obtained with the Gemini North Telescope on Mauna Kea, Hawai‘i with the ALTAIR AO system built and designed by the National Research Council of Canada’s Herzberg Institute of Astrophysics.

Credit:

NOIRLab

About the Image

Id:gemini0606a
Type:Observation
Release date:June 5, 2006
Related releases:gemini0606
Size:1683 x 1686 px

About the Object

Name:M31
Category:Galaxies

Image Formats

Large JPEGLarge JPEG
1.2 MB
Screensize JPEGScreensize JPEG
399.1 KB

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653.6 KB
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4.0 MB

Colors & filters

BandTele-scope
Gemini North
ALTAIR