Designation:
M23
Date:
July 17th, 2018
Camera:
Canon EOS 7D Mark II ( unmodified )
Optics:
Sky-Watcher ED120mm Doublet
Focal Length:
900 mm
Exposure:
24 x 60sec.
ISO:
1000
Mount:
Sky-Watcher NEQ6 Pro
Guiding:
No Guider
Software:
Adobe Photoshop, DSS, Astroflat
Notes:
Messier 23 (M23) is a bright, large open star cluster located in the constellation Sagittarius.
The cluster lies northwest of the Teapot asterism, formed by the brightest stars of Sagittarius. M23 is located just to the northwest of Mu Sagittarii, a multiple star system with an apparent magnitude of 3.84, visible to the naked eye. The cluster can be found 2.5 degrees north and 3.5 degrees west of the star.