Little Sombrero (NGC 7814)

NGC 7814
NGC 7814: Galaxy in Pegasus; 500 mm Cassegrain f/7.2; SBIG STL11K; 120-50-50-50 min LRGB; Bernese Highlands; © 2011 Radek Chromik [32]

History

This galaxy was discovered on 8 October 1874 by the German-British astronomer William Herschel with his 18.7 inch reflecting telescope. He listed it as II 240, with class «II» standing for faint nebulae. He described it as «pretty faint, pretty large, irregularly round, easily resolvable» [463] John LE Dreyer entered the galaxy as NGC 7814 in his «New General Catalogue of Nebulae and Clusters of Stars» published in 1888. [313]

Physical Properties

The distances, determined by different methods, range from 12.8 Mpc to 19.2 Mpc (41.7 to 62.6 million light years). [145]. We are looking directly at the edge of this spiral galaxy, which is also called «Little Sombrero» because of its appearance with the prominent dust band, in reference to the Sombrero Galaxy Messier 104.

Just 10 arc minutes south is the small galaxy IC 5381, discovered photographically on November 17, 1895 by the British astronomer Isaac Roberts with a 20 inch reflecting telescope. [277] It is located at a distance of 206 Mpc (672 million light years) much more distant than NGC 7814 and has nothing to do with this galaxy. [145]

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
Name RA Dec Type bMag vMag B-V SB Dim PA z D(z) MD Dreyer Description Identification, Remarks
NGC 7814 00 03 14.8 +16 08 43 Gx (Sab) 11.6 10.6 1.0 13.2 5.5 × 2.3 135 0.003502 14.79 17.170 cB, cL, E, vgbM WH II 240; h 2297; GC 5046; UGC 8; MCG 3-1-20; CGCG 456-24; KUG 0000+158
IC 5381 00 03 11.1 +15 57 55 Gx (Sab) 14.9 14.1 0.8 12.9 1.3 × 0.3 54 0.037463 158.2 pF, S, lE spnf, bM, * 13 nr UGC 7; MCG 3-1-19; CGCG 456-23

Finder Chart

The galaxy NGC 7814 is located in the constellation Pegasus. The best observation time is June to November, when it is highest at night.

Finder Chart Little Sombrero (NGC 7814)
Little Sombrero (NGC 7814) in constellation Pegasus. Charts created using SkySafari 6 Pro and STScI Digitized Sky Survey. Limiting magnitudes: Constellation chart ~6.5 mag, DSS2 close-ups ~20 mag. [149, 160]

Objects Within a Radius of 15°

References