Commercial use of these images (books, software, etc.) is strictly prohibited without written permission. |
Digitized Sky Survey (DSS) Image Information for NGC 4939 | |||
---|---|---|---|
DSS Acknowledgement , DSS Copyright Notice | DSS Image Generation: 1st Generation DSS Image | ||
Image Center (2000): 13h 04m 14.3s; -10º 20' 25" | Image File Name: n4939.jpg | ||
Image Size (arcminutes): 10' x 10' | Image Size (pixels): 353 x 353 | ||
Original NGC Catalogue Data for NGC 4939 | |||
General Catalogue Designation: 3381 | William Herschel Designation: II 561 | ||
John Herschel Designation: 3458 | Other Observers: ... | ||
Right Ascension (Equinox 1860): 12h 56m 57s | Annual RA Precession (Equinox 1880): +3.13s | ||
North Polar Declination (Equinox 1860): 99° 35.7' | Annual DEC Precession (Equinox 1880): +19.4" | ||
Summary Description: pB, L, R, gmbM | |||
Notes: … | Comments: … | ||
Discovered by: Friedrich Wilhelm Herschel (1738 - 1822) | Year of Discovery: 1786 | ||
Telescope Aperture (Inches): 18.7 | Telescope Type: Reflector | ||
Understanding the 'Summary Description': Summary Description Abbreviations List | |||
Contemporary/Current Data for NGC 4939 | |||
Right Ascension (2000): 13h 04m 14.3s | Declination (2000): -10º 20' 25" | ||
Object Type: Galaxy | Object Classification: Sb+ | ||
Constellation: Virgo | Position Angle: 10 ° | ||
Visual Magnitude: 11.0 | Surface Brightness: 13.9 | ||
Blue Magnitude: 11.6 | Object Size: 5.5'X2.8' | ||
Also Cataloged As: | MCG-02-33-104, H II-561, h 3458, GC 3381, PGC 45170 | ||
Catalogue Notes: --------------- | |||
Book / Chart References for NGC 4939 | |||
Luginbuhl & Skiff (Page): 274 | Burnham's (Volume : Page): ------ | ||
Uranometria 2000: 285,284 | Herald-Bobroff Astroatlas: C-47,C-65,D-31 | ||
Microsky: 737 | GSC Small Region Number: 5539 | ||
POSS Blue Plate #: 1591 | POSS Red Plate #: 1591 | ||
Database Update Level: 2 (Complete) | |||
Contemporary Visual Observation(s) for NGC 4939 | |||
NGC 4939 = MCG -02-33-104 = PGC 45170 13 04 14.3 -10 20 24 V = 11.3; Size 5.5x2.8; SB = 14.1; PA = 5d 17.5": moderately bright, fairly large, large low surface brightness oval halo 2:1 SSW-NNE, increases to a brighter core. A mag 15 star is 1.4' NW of center. | |||
Data Sources Used to research NGC 4939 | |||
[NGC] New General Catalogue / [IC] Index Catalogue (Dreyer - 1888, 1895, 1908) [OHCDSO] Observing Handbook and Catalog of Deep-Sky Objects (Luginbuhl & Skiff - 1990) [RE-NGCDDB] NGC Discoverer's Database (Erdmann 1990 - 2006) [IRAS] IRAS Survey (NASA - 1989) [MCG] Morphological Catalog of Galaxies (Vorontsov-Velyaminov et al - 1962 thru 1968) [RE-AZDB] The Arizona Database®, V15.5 (Erdmann - 1987 thru 2006) [HC-PPL] NGC/IC Accurate Positions List Database (Corwin - 1996 thru 2006) [SG-NGCO] NGC/IC Observations Database (Gottlieb - 1998 thru 2006) [PGC] Principle Galaxy Catalog (Paturel et al. - 1989, 2003) [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. |
The NGC/IC Project LLC Web Site is owned, created, and maintained by Robert E. Erdmann, of Prescott, Arizona - U.S.A. - All Rights Reserved |