JOHN SANFORD / SCIENCE PHOTO LIBRARY JOHN SANFORD / SCIENCE PHOTO LIBRARY
Optical photograph of the M41 open star cluster in the constellation of Canis Major. Located some 1600 light years from Earth, it contains more than 100 stars. Schmidt-Cassegrain telesope, f/10, 10 min. Dec. Fuji RD400 pushed 1 stop, from Silverado site.
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