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31 Cygni - An Optical Trinary System

Here is a shot I snapped of 31 Cygni on Saturday, September 12, 2015 at Frosty Drew Observatory In Charlestown, Rhode Island, USA. 31 Cygni, residing in the constellation Cygnus, is an optical trinary system. Each star, though appearing to be interacting, reside at significantly different distances from Earth. The primary star in the group sports a stunning red and resides at 881 light years distant. The second brightest star in the group is 30 Cygni, which resides at 615 light years distant. The third star and dimmest of the group resides at 1359 light years distant and shows off a striking blue.

 

Photo Details:

Camera: Canon 60D MagicLantern

1369mm

f/9

ISO: 1250

Exposure: 30 seconds * 25 shots.

This is a median composite of 25 frames to reduce noise.

 

-Scott MacNeill

exitpupil.org

 

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Uploaded on September 13, 2015
Taken on September 12, 2015