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| Digitized Sky Survey (DSS) Image Information for NGC 4656 | |||
|---|---|---|---|
| DSS Acknowledgement , DSS Copyright Notice | DSS Image Generation: 1st Generation DSS Image | ||
| Image Center (2000): 12h 43m 58.3s; +32º 10' 13" | Image File Name: n4656.jpg | ||
| Image Size (arcminutes): 10' x 10' | Image Size (pixels): 353 x 353 | ||
| Original NGC Catalogue Data for NGC 4656 | |||
| General Catalogue Designation: 3189 | William Herschel Designation: I 176 | ||
| John Herschel Designation: 1414 | Other Observers: ... | ||
| Right Ascension (Equinox 1860): 12h 37m 09s | Annual RA Precession (Equinox 1880): +2.93s | ||
| North Polar Declination (Equinox 1860): 57° 4.0' | Annual DEC Precession (Equinox 1880): +19.8" | ||
| Summary Description: !, pB, L, vmE 34°, sp of 2 | |||
| Notes: *† | Comments: … | ||
| Discovered by: Friedrich Wilhelm Herschel (1738 - 1822) | Year of Discovery: 1787 | ||
| Telescope Aperture (Inches): 18.7 | Telescope Type: Reflector | ||
| Understanding the 'Summary Description': Summary Description Abbreviations List | |||
| Contemporary/Current Data for NGC 4656 | |||
| Right Ascension (2000): 12h 43m 58.3s | Declination (2000): +32º 10' 13" | ||
| Object Type: Galaxy | Object Classification: SBm IV | ||
| Constellation: Canes Venatici | Position Angle: 33 ° | ||
| Visual Magnitude: 10.2 | Surface Brightness: 14.1 | ||
| Blue Magnitude: 10.6 | Object Size: 15.1'X3.0' | ||
| Also Cataloged As: | UGC 7907, MCG+05-30-066, H I-176, h 1414, GC 3189, CGCG 159.065, KUG 1241+324, KCPG 350B, IRAS 12417+3228, FGC 174A, PGC 42863 | ||
| Catalogue Notes: NGC 4657 superimposed. | |||
| Book / Chart References for NGC 4656 | |||
| Luginbuhl & Skiff (Page): 48 | Burnham's (Volume : Page): ------ | ||
| Uranometria 2000: 108 | Herald-Bobroff Astroatlas: C-29,C-30 | ||
| Microsky: 322 | GSC Small Region Number: 2531 | ||
| POSS Blue Plate #: 64 | POSS Red Plate #: 64 | ||
| Database Update Level: 2 (Complete) | |||
| Contemporary Visual Observation(s) for NGC 4656 | |||
NGC 4656 = UGC 07907a = MCG +05-30-066a = CGCG 159-065a = PGC 42863 12 43 58.2 +32 10 13 V = 10.5; Size 15.1x3.0; SB = 14.5; PA = 33d 13.1": striking!, fairly bright, very elongated SW-NE. Appears wider and brighter at the SW end. The NE end hooks sharply east to merge with N4657 which may be a part of N4656 and not a separate galaxy. A star or knot is attached at the south end. Appears like a celestial hockey stick! | |||
| Data Sources Used to research NGC 4656 | |||
| [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) [UGC] Uppsala General Catalog of Galaxies (Nilson - 1973) [CGCG] Catalog of Galaxies & Clusters of Galaxies (Zwicky - 1968) [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) [PGC] Principle Galaxy Catalog (Paturel et al. - 1989, 2003) [MCG] Morphological Catalog of Galaxies (Vorontsov-Velyaminov et al - 1962 thru 1968) [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. | |||
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