Galaxy NGC 157

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


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, © Dr. Wolfgang Steinicke [277]
DesignationNGC 157
TypeGx (SBbc)
Right Ascension (J2000.0)00h 34m 46.4s
Declination (J2000.0)-08° 23' 46"
Diameter3.5 × 2.4 arcmin
Photographic (blue) magnitude11.0 mag
Visual magnitude10.4 mag
Surface brightness12.9 mag·arcmin-2
Position Angle36°
Distance derived from z23.27 Mpc
Metric Distance19.500 Mpc
Dreyer DescriptionpB, L, E, bet 2 cB st
Identification, RemarksMCG -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]

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