NGC 157

DSS Image annotation ©Copyright 1996 through 2008 by Robert E. Erdmann, Jr. - All rights reserved.
Commercial use of these images (books, software, etc.) is strictly prohibited without written permission.

Digitized Sky Survey (DSS) Image Information for NGC 157

DSS Acknowledgement , DSS Copyright Notice		DSS Image Generation: 1st Generation DSS Image
Image Center (2000): 00h 34m 46.7s; -08º 23' 48"		Image File Name: n0157.jpg
Image Size (arcminutes): 10' x 10'		Image Size (pixels): 353 x 353
Original NGC Catalogue Data for NGC 157
General Catalogue Designation: 78		William Herschel Designation: II 3
John Herschel Designation: ...		Other Observers: d'A, St IX
Right Ascension (Equinox 1860): 00h 27m 40s		Annual RA Precession (Equinox 1880): +3.04s
North Polar Declination (Equinox 1860): 99° 10.2'		Annual DEC Precession (Equinox 1880): -19.9"
Summary Description: pB, L, E, bet 2 cB st
Notes: …	Comments: …
Discovered by: Friedrich Wilhelm Herschel (1738 - 1822)			Year of Discovery: 1783
Telescope Aperture (Inches): 18.7		Telescope Type: Reflector
Understanding the 'Summary Description': Summary Description Abbreviations List
Contemporary/Current Data for NGC 157
Right Ascension (2000): 00h 34m 46.7s		Declination (2000): -08º 23' 48"
Object Type: Galaxy		Object Classification: SAB(rs)bc
Constellation: Cetus		Position Angle: 30 °
Visual Magnitude: 10.4		Surface Brightness: 12.9
Blue Magnitude: 11.0		Object Size: 4.2'X2.7'
Also Cataloged As:	MCG-02-02-056, PGC 2081, H II-3, GC 78
Catalogue Notes: ---------------
Book / Chart References for NGC 157
Luginbuhl & Skiff (Page): 72		Burnham's (Volume : Page): ------
Uranometria 2000: 261		Herald-Bobroff Astroatlas: C-39,C-56
Microsky: 706		GSC Small Region Number: 5269
POSS Blue Plate #: 1203		POSS Red Plate #: 1203
Database Update Level: 2 (Complete)
Contemporary Visual Observation(s) for NGC 157
NGC 0157 = MCG -02-02-056 = PGC 02081 00 34 46.6 -08 23 48 V = 10.4; Size 4.2x2.7; SB = 12.9; PA = 40d 17.5": bright, large, oval 3:2 SW-NE, broad concentration, small bright core, mottled appearance, sharp edge along the E side. Two mag 13.5 and 15 stars are near the NE edge. Located between mag 9.5 SAO 128835 5.5' S and mag 8.6 SAO 12833 6' NNW. 8": fairly faint, fairly large, diffuse. Located between two mag 8.5/9.5 stars to the N and S. - by Steve Gottlieb
Historical Research Notes / Correction for NGC 157
NGC 157. See NGC 7667 where this galaxy -- N157 -- figures in the Father Secchi mysteries. - Dr. Harold G. Corwin, Jr.
Correction Disclaimer
As with all corrections to the NGC and IC Catalogues, there is a certain margin for error, even though the evidence supporting the correction may be strong and compelling. It is with this in mind that we ask the user to use this information as 'Most Probable', but never to assume the correction is 'Absolute'. All published corrections are based on an exhaustive 'paper chase' of the historical record back to the original discoverer's published notes/papers, and are therefore based upon the historical accuracy (or inaccuracy) of those particular notes/papers. In short, Caveat Emptor! - Robert E. Erdmann, Jr.
Data Sources Used to research NGC 157
[NGC] New General Catalogue / [IC] Index Catalogue (Dreyer - 1888, 1895, 1908) [OHCDSO] Observing Handbook and Catalog of Deep-Sky Objects (Luginbuhl & Skiff - 1990) [GD-NGCDDB] NGC Discoverer's Database (DeLange - 1987 to 2006) [MOL] Master List of Nonstellar Optical Astronomical Objects (Dixon & Sonneborn - 1980) [NGCT] The Nearby Galaxies Catalog (Tully) [RC3] Third Reference Catatalog of Bright Galaxies (de Vaucouleurs, Corwin, Buta, et. al. - 1991) [HC-PPL] NGC/IC Accurate Positions List Database (Corwin - 1996 thru 2006) [SG-NGCO] NGC/IC Observations Database (Gottlieb - 1998 thru 2006) [RE-AZDB] The Arizona Database®, V15.5 (Erdmann - 1987 thru 2006) [HC-PSDB] NGC Historical Notes Database (Corwin - 1996 thru 2006) [MOL] Master List of Nonstellar Optical Astronomical Objects (Dixon & Sonneborn - 1980) [DSS] Digitized Sky Survey - 1st (102 CD-ROM) and 2nd (Web Site) Generation (STScI - 1994) [NED] NASA's Extragalactic Database (NED) located at http://nedwww.ipac.caltech.edu/
Additional Notes
• 1st generation images were generated from the 102 CD-ROM version of the Digitized Sky Survey (DSS) • 2nd generation images were generated at the DSS web site located at http://archive.stsci.edu/cgi-bin/dsswin • Luginbuhl & Skiff page numbers are from 'Observing Handbook and Catalogue of Deep-Sky Objects' by Christian B. Luginbuhl and Brian A. Skiff, produced by Cambridge University Press • Burnham's refers to 'Burnham's Celestial Handbook' in three volumes produced by Dover Publications, Inc. • Uranometria 2000 chart numbers are for those printings authored by Tirion, Rappaport & Lovi, and are not for the most recent printings authored by Tirion, Rappaport & Remaklus in which the charts were re-numbered, all of which were and/or are produced by Willmann-Bell, Inc. • The Herald-Bobroff Astroatlas is by D. Herald and P. Bobroff of Canberra, Australia and is produced by HB2000 Publications • Microsky® is the microfiche rendition of the Palomar Observatory Sky Survey (POSS) produced by Deen Publications (P.O. Box 867088; Plano Texas 75086) • POSS refers to the Palomar Observatory Sky Survey produced by The National Geographic Society in conjunction with The California Institute of Technology • All DSS image annotation was performed by Robert E. Erdmann, Jr., and is ©Copyright 1996 through 2008 by Robert E. Erdmann, Jr. - All rights reserved • All product names, trademarks, and copyrights are the property of their respective owners • Contemporary/Current Data for this object was hand collected and entered from the data sources listed in the "Data Sources Used" section of this table above.- Robert E. Erdmann, Jr.