Galaxy NGC 157

NGC 157
NGC 157: Image taken with HAWK-I instrument of VLT on Paranal Observatory in Chile © ESO 2011 [630]

History

This galaxy was discovered by William Herschel on 13 December 1783 using his 18.7 inch reflector. He cataloged it as II 3 and noted: «Faint, large, much extended, between two considerably bright stars.» [463] Dreyer added it as NGC 157 to his «New General Catalogue» published in 1888. [313]

Physical Properties

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
Designation NGC 157
Type Gx (SBbc)
Right Ascension (J2000.0) 00h 34m 46.4s
Declination (J2000.0) -08° 23' 46"
Diameter 3.5 × 2.4 arcmin
Photographic (blue) magnitude 11.0 mag
Visual magnitude 10.4 mag
Surface brightness 12.9 mag·arcmin-2
Position Angle 36°
Redshift (z) 0.005510
Distance derived from z 23.27 Mpc
Metric Distance 19.500 Mpc
Dreyer Description pB, L, E, bet 2 cB st
Identification, Remarks WH II 3; GC 78; MCG -2-2-56

Finder Chart

The galaxy is located in the constellation Cetus. The best observation time is September to December.

Finder Chart Galaxy NGC 157
Galaxy NGC 157 in constellation Cetus. 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 25°

References