Target: NGC891 - The Outer Limits Galaxy
Telescope: Orion 8" f/4.9
Exposures: L:R:G:B=160:50:50:50 (L=1x1,RGB=2x2)
Framing: West is Up
Sensor Temp: -10C
Location: Mocksville, NC
Start Time: 7:30PM
End Time: 1:00AM
Captured with Sequence Generator Pro, stacked using DeepSkyStacker, processed in Photoshop.
(also known as Caldwell 23
) is an edge-on unbarred spiral galaxy
about 30 million light-years
away in the constellation Andromeda
. It was discovered by William Herschel
on October 6 1784. The galaxy is a member of the NGC 1023 group of galaxies
in the Local Supercluster
. It has an H II nucleus.
The object is visible in small to moderate size telescopes
as a faint elongated smear of light with a dust lane
visible in larger apertures.
In 1999, the Hubble Space Telescope
imaged NGC 891 in infrared
In 2005, due to its attractiveness and scientific interest, NGC 891 was selected to be the first light
image of the Large Binocular Telescope
In 2012, it was again used as a first light image of the Discovery Channel Telescope
with the Large Monolithic Imager.Supernova
SN 1986J was discovered on August 21, 1986 at apparent magnitude 14.