NGC891
NGC891 LRGB Galaxy
NGC891 is a unbarred spiral galaxy in the constellation Andromeda. It is approximately 30 million light years away. It was discovered by William Herschel on October 6 1784. Although this galaxy looks as we think our own galaxy would look like when viewed edge-on, recent high-resolution images of its dusty disk show unusual filamentary. These patterns are extending into the halo of the galaxy, away from its galactic disk. Scientists presume that supernova explosions caused this interstellar dust to be thrown out of the galactic disk toward the halo. The galaxy is a member of the NGC 1023 group of galaxies in the Local Supercluster.
Crop of NGC891
NGC891 10min Luminance Subframes x 35 = 350 min combined image
NGC891 10min Red Subframes x 9 = 90 min combined image
NGC891 10min Green Subframes x 9 = 90 min combined image
NGC891 10min Blue Subframes x 9 = 90 min combined image
Scope Planewave 17in
Camera Apogee U16
Mount Paramount ME
Filters Astrodon LRGB
Exposures R 1.5Hrs G 1.5Hrs B 1.5Hrs L 5.8Hrs LRGB 10min subs
Location Sierra Nevada Mountains CA. Heavens Mirror Observatory SRO 2012