NOAO < Image Gallery

NOAO Image Gallery

Welcome to the NOAO Image Gallery. The gallery includes pictures taken with the facilities of the National Optical Astronomy Observatory, and also pictures of our telescopes, instruments and history. About the Gallery

Astronomical Objects

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Featured Images:

M31 and M33 Panoramas

These images were created with data from the Local Group Survey, completed with the Mosaic camera on the Mayall 4-meter telescope at Kitt Peak National Observatory. M31, M33 and our Milky Way are the three largest members of the Local Group of galaxies. The images were generated with observations with the U (violet), B (blue), V (cyan), I (orange) and H-alpha (red) filters. The five filters show the star colors and HII star forming regions in vivid detail.

M31

M31 is a spiral galaxy very similar in size and mass to our own. Ten ‘pointings’ of the camera along the galaxy in five filters were used to make the image. You could line seven full moons across the image. About 600 million pixels in size, the full size image is the largest and most detailed image of M31 ever completed that covers the entire galaxy.

Image Gallery page for the M31 Panorama

M33

M33 is a spiral galaxy that is about ten times smaller than our own. Three ‘pointings’ of the camera along the galaxy in five filters were used to make the image.

Image Gallery Page for the M33 Panorama

Local Group Survey Team and T.A. Rector (University of Alaska Anchorage)

Additional NOAO Images

Other Image Sites (External)


The astronomical images presented on these pages are provided through the facilities of the National Optical Astronomy Observatory, unless otherwise noted. If you plan to use any of these images for other than your personal enjoyment please read our conditions of use.