The NGC/IC Project

NGC 3992

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 3992
DSS Acknowledgement ,  DSS Copyright Notice DSS Image Generation:  1st Generation DSS Image
Image Center (2000):  11h 57m 36.0s; +53º 22' 28"Image File Name:  n3992.jpg
Image Size (arcminutes):  10' x 10'Image Size (pixels):  353 x 353
Original NGC Catalogue Data for  NGC 3992
General Catalogue Designation:  2635William Herschel Designation:  IV 61
John Herschel Designation:  1030Other Observers:  ...
Right Ascension (Equinox 1860):  11h 50m 19sAnnual RA Precession (Equinox 1880):  +3.14s
North Polar Declination (Equinox 1860):  35° 51.3'Annual DEC Precession (Equinox 1880):  +20.0"
Summary Description:  cB, vL, pmE, sbMBrN
Notes:  Comments:  
Discovered by:  Pierre Francois Andre Mechain (1744 - 1804)Year of Discovery:  1781
Telescope Aperture (Inches):  3Telescope Type:  Refractor
Understanding the 'Summary Description':  Summary Description Abbreviations List
Contemporary/Current Data for  NGC 3992
Right Ascension (2000):  11h 57m 36.0sDeclination (2000):  +53º 23' 28"
Object Type:  GalaxyObject Classification:  SBb I
Constellation:  Ursa MajorPosition Angle:  68 °
Visual Magnitude:  9.9Surface Brightness:  13.7
Blue Magnitude:  10.5Object Size:  7.6'X4.7'
Also Cataloged As:  M109, UGC 6937, MCG+09-20-044, H IV-61, h 1030,
GC 2635, CGCG 269.023, IRAS 11549+5339, PGC 37617
Catalogue Notes:  ---------------
Book / Chart References for NGC 3992
Luginbuhl & Skiff (Page):  250Burnham's (Volume : Page):  ------
Uranometria 2000:  47Herald-Bobroff Astroatlas:  C-12,D-35
Microsky:  131GSC Small Region Number:  3833
POSS Blue Plate #:  1389POSS Red Plate #:  1389
Database Update Level: 2 (Complete)
Contemporary Visual Observation(s) for NGC 3992
NGC 3992 = M109 = U06937 = MCG +09-20-044 = CGCG 269-023 = PGC 37617
11 57 35.9 +53 22 29
V = 9.8;  Size 7.6x4.7;  SB = 13.6;  PA = 68d

17.5": bright, large, elongated 5:3 SW-NE, at least 6.0'x3.5', broadly 
concentrated halo, large faint halo.  A mag 13 star is superimposed on the halo 
50" NNW of center.  A mag 13 star is at the NE edge of the halo 3.4' from 
center.  Located 5.1' NE of mag 9.3 SAO 28199.  Forms a pair with U06923 15' 
SSW.

13": fairly bright, large, elongated SW-NE, bright core, diffuse halo.  A star 
is superimposed NW of the core.

- by Steve Gottlieb

Data Sources Used to research NGC 3992
[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)
[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)
[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