The NGC/IC Project

NGC 4449

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 4449
DSS Acknowledgement ,  DSS Copyright Notice DSS Image Generation:  1st Generation DSS Image
Image Center (2000):  12h 28m 11.1s; +44º 05' 36"Image File Name:  n4449.jpg
Image Size (arcminutes):  10' x 10'Image Size (pixels):  353 x 353
Original NGC Catalogue Data for  NGC 4449
General Catalogue Designation:  3002William Herschel Designation:  I 213
John Herschel Designation:  1281Other Observers:  ...
Right Ascension (Equinox 1860):  12h 21m 23sAnnual RA Precession (Equinox 1880):  +2.94s
North Polar Declination (Equinox 1860):  45° 8.0'Annual DEC Precession (Equinox 1880):  +20.0"
Summary Description:  vB, cL, mE, D or bifid, rrr, * 9 f 5'
Notes:  Comments:  
Discovered by:  Friedrich Wilhelm Herschel (1738 - 1822)Year of Discovery:  1788
Telescope Aperture (Inches):  18.7Telescope Type:  Reflector
Understanding the 'Summary Description':  Summary Description Abbreviations List
Contemporary/Current Data for  NGC 4449
Right Ascension (2000):  12h 28m 11.1sDeclination (2000):  +44º 05' 36"
Object Type:  GalaxyObject Classification:  Irr III
Constellation:  Canes VenaticiPosition Angle:  45 °
Visual Magnitude:  9.8Surface Brightness:  13.2
Blue Magnitude:  10.2Object Size:  6.2'X4.4'
Also Cataloged As:  UGC 7592, MCG+07-26-009, H I-213, h 1281, GC 3002,
CGCG 216.005, PGC 40973, LGG 290-017
Catalogue Notes:  ---------------
Book / Chart References for NGC 4449
Luginbuhl & Skiff (Page):  48Burnham's (Volume : Page):  ------
Uranometria 2000:  75Herald-Bobroff Astroatlas:  C-11,C-12,C-29,C-30,D-35
Microsky:  218GSC Small Region Number:  3020
POSS Blue Plate #:  115POSS Red Plate #:  115
Database Update Level: 2 (Complete)
Contemporary Visual Observation(s) for NGC 4449
NGC 4449 = UGC 07592 = MCG +07-26-009 = CGCG 216-005 = LGG 290-017 = PGC 40973
12 28 11.2 +44 05 36
V = 09.6;  Size 6.2x4.4;  SB = 13.0;  PA = 45d

18" (5/8/04): fascinating view of this "Magellanic" system at 323x!  The galaxy 
is very irregular in appearance and surface brightness with a large, bright, 
elongated core oriented SW-NE.  The core appears offset to the south side of the 
galaxy.

Several knots (giant HII regions) are visible outside the core.  The brightest 
is a well-defined obvious patch on the north edge of the galaxy, 1.5' from the 
center.  This object is #15 in Hodge-Kennicutt's 1983 "Atlas of HII regions in 
125 galaxies" and it is nearly comparable in surface brightness to the core.  
Roughly 1' SE is a smaller, faint knot which is collinear with [HK83] 15 and a 
mag 13.5 star 2.4' east of the core.  A third difficult knot can be sometimes 
glimpsed about 40" SW of [HK83] 15.  Finally, attached on the south end of the 
core there is a larger, bright knot, although initially I though this was just 
part of the core.

13.1" (4/12/86): very bright, very large, elongated SW-NE, bright core, stellar 
nucleus.  A knot is involved at the north end and the galaxy generally appears 
brighter to the north of the core.  A star is superimposed close E of the core.

8": bright, moderately large, elongated, bright core.

- by Steve Gottlieb

Data Sources Used to research NGC 4449
[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)
[RE-AZDB] The Arizona Database®, V15.5 (Erdmann - 1987 thru 2006)
[SG-NGCO] NGC/IC Observations Database (Gottlieb - 1998 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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