NGC 891 is an edge-on unbarred spiral galaxy in the constellation Andromeda. It is about 30 million lightyears away and was discovered by William Herschel in 1784. NGC 891 looks as our own Milky Way would look like when viewed edge-on and, in fact, both galaxies are considered very similar in terms of luminosity and size.
As is visible in the image, it's dusty disk show unusual filamentary patterns. 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. Another possibility may be that the light pressure from surrounding stars is causing this phenomenon.

Image Capture Details:

15x600s each LRGB.
Telescope - PlaneWave 12.5" CDK
Mount - iOptron CEM120EC2
Camera - ZWO ASI2600MM
RA 02hrs 22' 33"
DEC +42degrees 20' 57"
Position Angle (CCW) - 20 degrees
Location - Calgary Alberta
Date - September 2024
Constellation - Andromeda
Distance - 30 million lightyears

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