Messier 73

55. Messier 73


Messier 73  RA: 20h 59.0'  Dec: -12 38'   Aquarius (Aqr)

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Messier 73 (M73, also known as NGC 6994) is an asterism of four stars in the constellation of Aquarius several arcminutes east of M72, a globular cluster. An asterism mainly refers to any bright stars as viewed from Earth appearing to form a reasonably sized, normally published, imagined shape in the sky but is used here in the sense of a loose optical double: gravitationally unconnected stars that appear close in the sky.
 

Image Information

Location Burlington IN
Date Sept 27 2013
Optics Astro-Tech AT8IN
Filters Baader MPCC
Mount Celestron CGE
Camera Canon/Hutech 500DH
ISO 800
Subexposures 2
Exposure Length 30
Guider Baby-guider
 

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All images copyright © 2006-2021, Rick Saunders
Main text descriptions sourced from Wikipaedia.
Sky position information is based on IP geolocation and is therefore approximate.