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I agreeImaging telescopes or lenses: Skywatcher Explorer 200PDS
Imaging cameras: Nikon D810A
Mounts: Skywatcher NEQ6 PRO Synscan
Guiding telescopes or lenses: Skywatcher 9x50 finderscope
Guiding cameras: QHYCCD QHY5L-IIc
Focal reducers: Baader MPCC Mk III
Software: Photoshop · Pixinsight
Accessory: Seletek Armadillo
Dates:Nov. 2, 2018
Frames: 16x600"
Integration: 2.7 hours
Avg. Moon age: 24.09 days
Avg. Moon phase: 29.97%
Astrometry.net job: 2380891
RA center: 3h 47' 18"
DEC center: +24° 12' 22"
Pixel scale: 0.994 arcsec/pixel
Orientation: 146.837 degrees
Field radius: 1.006 degrees
Resolution: 5972x4200
Locations: Puolivälinkangas - Oulu, Oulu, Finland
Data source: Backyard
The Pleiades (/ˈplaɪ.ədiːz, ˈpliːə-/), also known as the Seven Sisters and Messier 45, are an open star cluster containing middle-aged, hot B-type stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky.
The cluster is dominated by hot blue and luminous stars that have formed within the last 100 million years. A faint reflection nebulosity around the brightest stars was thought at first to be left over from the formation of the cluster (hence the alternative name Maia Nebula after the star Maia), but is now likely an unrelated foreground dust cloud in the interstellar medium, through which the stars are currently passing.[7]
Computer simulations have shown that the Pleiades were probably formed from a compact configuration that resembled the Orion Nebula.[8] Astronomers estimate that the cluster will survive for about another 250 million years, after which it will disperse due to gravitational interactions with its galactic neighborhood.[9]
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