M45 – The Pleiades in LRGB

Craig & Tammy Temple
Location of photo
Portland, TN, USA
Date/Time of photo
December 12 & 20, 2014
Telescope: Stellarvue SV80S Apo @ f/6 Accessories: Stellarvue SFF3 flattener; Dew control by Dew Buster; Alnitak Flat-Man Mount: Takahashi EM-200 Temma2 Camera: QSI683wsg-8 CCD @ -25C Guiding: Starlight Xpress Lodestar via PHD Filters: Astrodon E-Series Gen II LRGB filters Exposure: 14 x 15min. binned 1x1 Luminance; 6 x 10min. binned 2x2 in each R, G, & B Acquisition: ImagesPlus 5.0 Camera Control Processing: PixInsight 1.8
M45 - The Pleiades is an open star cluster located around 444 light years away in the constellatin Taurus, the Bull. With an apparent visual magnitude of 1.6, this cluster is a prominent object in the Northern Hemisphere during the winter. Being among the nearest star clusters to us here on Earth, it is very easy to see with the naked eye in the night sky. This cluster contains middle-aged, hot, blue B-type stars that are extremely luminous and have formed over the last 100 million years. The blue reflection nebulosity associated with M45 is known to be from an unrelated dust cloud in the interstellar medium through which this cluster is actively passing. It is estimated that this cluster will stay together for about 250 million more years, then will disperse from the gravitational interactions with its galactic neighbors.
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