NGC 925

Common Name: Amatha Galaxy

Also Known as: UGC 01913

Object Type:Barred Spiral Galaxy

Constellation: Triangulum

Distance from Earth: 30.0 million light years

Apparent Magnitude: 10.7

Coordinates: RA 02H 27M 16.913S DEC 33 deg 34 min 43.97 sec

Actual Size: 92,000 light years

Apparent Dimensions: 10.5 arc-minutes x 5.9 arc-minutes

Discovered by: The galaxy was discovered on 13th September 1784 by the German-British astronomer William Herschel with his self-made 18.7 inch f/12.8 reflecting telescope in Slough, England.
He recorded it as III 177, Class III standing for very faint nebulae. He noted: «Very faint, considerably large, irregularly round, resolvable, 2 or 3' in diameter.»
John L. E. Dreyer entered the galaxy as NGC 925 in his «New General Catalogue of Nebulae and Clusters of Stars» published in 1888.

Description: NGC 925 is a good example of a barred spiral galaxy. Instead of a spherical nucleus, the center of this galaxy consists of a long bright extending bar.
The two main spiral arms begin at the ends of this bar. The bar and both arms have numerous bright blue knots that are presumably regions of intense star formation.
The morphological classification of this galaxy is SB(s)d, indicating that it has a bar structure and loosely wound spiral arms with no ring.
The spiral arm to the south is stronger than the northern arm, with the latter appearing flocculent and less coherent.
The bar is offset from the center of the galaxy and is the site of star formation all along its length. Both of these morphological traits—a dominant spiral arm and the offset bar—are typically characteristics of a Magellanic spiral galaxy.
The galaxy is inclined at an angle of 55° to the line of sight along a position angle of 102°.
The NGC 925 is a member of the NGC 1023 Group, a nearby, gravitationally-bound group of galaxies associated with NGC 1023. However, the nearest member lies at least 650,000 light years (200,000 parsecs) distant from NGC 925.
There is a 10 million solar mass cloud of neutral hydrogen attached to NGC 925 by a streamer. It is uncertain whether this is a satellite dwarf galaxy, the remnant of a past tidal interaction, or a cloud of primordial gas.

Click Below Image(s) for Full Size:

The best time to observe is July to February, when it is highest at night.

Platesolve

NGC 925 Galaxy

Imaging Details
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