Commercial use of these images (books, software, etc.) is strictly prohibited without written permission. |
Digitized Sky Survey (DSS) Image Information for NGC 4736 | |||
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DSS Acknowledgement , DSS Copyright Notice | DSS Image Generation: 1st Generation DSS Image | ||
Image Center (2000): 12h 50m 53.0s; +41º 07' 12" | Image File Name: n4736.jpg | ||
Image Size (arcminutes): 10' x 10' | Image Size (pixels): 353 x 353 | ||
Original NGC Catalogue Data for NGC 4736 | |||
General Catalogue Designation: 3258 | William Herschel Designation: ... | ||
John Herschel Designation: 1456 | Other Observers: Méchain, M 94 | ||
Right Ascension (Equinox 1860): 12h 44m 17s | Annual RA Precession (Equinox 1880): +2.84s | ||
North Polar Declination (Equinox 1860): 48° 7.0' | Annual DEC Precession (Equinox 1880): +19.7" | ||
Summary Description: vB, L, iR, vsvmbMBN, r | |||
Notes: † | Comments: … | ||
Discovered by: Pierre Francois Andre Mechain (1744 - 1804) | Year of Discovery: 1781 | ||
Telescope Aperture (Inches): 3 | Telescope Type: Refractor | ||
Understanding the 'Summary Description': Summary Description Abbreviations List | |||
Contemporary/Current Data for NGC 4736 | |||
Right Ascension (2000): 12h 50m 53.0s | Declination (2000): +41º 07' 12" | ||
Object Type: Galaxy | Object Classification: Sb | ||
Constellation: Canes Venatici | Position Angle: 105 ° | ||
Visual Magnitude: 8.0 | Surface Brightness: 12.9 | ||
Blue Magnitude: 8.7 | Object Size: 11.2'X9.1' | ||
Also Cataloged As: | M 94, UGC 7996, MCG+07-26-058, h 1456, GC 3258, CGCG 216.034, CGCG 217.001, IRAS 12485+4123, PGC 43495 | ||
Catalogue Notes: --------------- | |||
Book / Chart References for NGC 4736 | |||
Luginbuhl & Skiff (Page): 48 | Burnham's (Volume : Page): 1:377 | ||
Uranometria 2000: 75 | Herald-Bobroff Astroatlas: C-11,C-12,C-29,C-30,D-30 | ||
Microsky: 218 | GSC Small Region Number: 3021 | ||
POSS Blue Plate #: 115 | POSS Red Plate #: 115 | ||
Database Update Level: 2 (Complete) | |||
Contemporary Visual Observation(s) for NGC 4736 | |||
NGC 4736 = M94 = U07996 = MCG +07-26-058 = CGCG 216-034 = CGCG 217-001 = PGC 43495 12 50 53.0 +41 07 12 V = 8.2; Size 11.2x9.1; SB = 13.1; PA = 105d 13.1": very bright, very impressive, fairly large, oval WNW-ESE, very bright core containing a stellar nucleus. | |||
Historical Research Notes / Correction for NGC 4736 | |||
NGC 4736 = M94. Wolf includes a good position for this in his fifth list, but cites neither the Messier nor NGC numbers. He does have a footnote, though, identifying the object as "A.G. Bonn 8688." The galaxy's nucleus is indeed bright enough and small enough that it could be measured precisely and included in the star catalogue. - 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 4736 | |||
[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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