NGC 7331

Deer Lick Galaxy Group

Deer Lick Galaxy Group

The large galaxy in this image is NGC 7331. This spiral galaxy is unusual in that the core of the galaxy appears to be rotating in the opposite direction of rotation of the spiral disk. At one time, NGC 7331 was believed to be very similar to our Milky Way Galaxy, but more recent observations indicate that the Milky Way Galaxy is a barred spiral galaxy, drawing into doubt the notion that this is a fair representation of what out galaxy probably looks like. This image shows a group of galaxies known as the Deer Lick Group located in the constellation Pegasus. The four brightest members of the group visible to the left of NGC 7331 are NGC 7336, NGC 7335, NGC 7331, and NGC 7340.

NGC 7331 was discovered by William Herschel in 1784. It is the brightest galaxy in Pegasus. It is located at a distance of about 40 million light-years.

This is an LRGB color composite CCD image taken with the 32-inch Schulman Telescope on the summit of Mount Lemmon at the University of Arizona SkyCenter.

NGC 7331
Constellation: Pegasus
RA: 22h 37m 15.10s Dec: +34d 25' 13" (J2000)
July 3, 2016
Image by Sid Leach and Francisco Arabia
Mount Lemmon, Arizona

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