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| Digitized Sky Survey (DSS) Image Information for NGC 3981 | |||
|---|---|---|---|
| DSS Acknowledgement , DSS Copyright Notice | DSS Image Generation: 1st Generation DSS Image | ||
| Image Center (2000): 11h 56m 07.1s; -19º 53' 49" | Image File Name: n3981.jpg | ||
| Image Size (arcminutes): 10' x 10' | Image Size (pixels): 353 x 353 | ||
| Original NGC Catalogue Data for NGC 3981 | |||
| General Catalogue Designation: 2628 | William Herschel Designation: III 274 | ||
| John Herschel Designation: ... | Other Observers: ... | ||
| Right Ascension (Equinox 1860): 11h 49m 04s | Annual RA Precession (Equinox 1880): +3.05s | ||
| North Polar Declination (Equinox 1860): 109° 7.0' | Annual DEC Precession (Equinox 1880): +20.0" | ||
| Summary Description: vF, pL, iF | |||
| Notes: … | Comments: … | ||
| Discovered by: Friedrich Wilhelm Herschel (1738 - 1822) | Year of Discovery: 1785 | ||
| Telescope Aperture (Inches): 18.7 | Telescope Type: Reflector | ||
| Understanding the 'Summary Description': Summary Description Abbreviations List | |||
| Contemporary/Current Data for NGC 3981 | |||
| Right Ascension (2000): 11h 56m 07.1s | Declination (2000): -19º 53' 49" | ||
| Object Type: Galaxy | Object Classification: Sc | ||
| Constellation: Crater | Position Angle: 15 ° | ||
| Visual Magnitude: 11.5 | Surface Brightness: 14.1 | ||
| Blue Magnitude: 12.1 | Object Size: 5.2'X2.3' | ||
| Also Cataloged As: | UA 255, ESO 572-G020, MCG-03-31-001, ARP 289, H III-274, GC 2628, VV 8, IRAS 11535-1937, PGC 37496 | ||
| Catalogue Notes: Very faint diffuse outer arms. | |||
| Book / Chart References for NGC 3981 | |||
| Luginbuhl & Skiff (Page): 96 | Burnham's (Volume : Page): ------ | ||
| Uranometria 2000: 327,328 | Herald-Bobroff Astroatlas: C-66 | ||
| Microsky: 795 | GSC Small Region Number: 6097 | ||
| POSS Blue Plate #: 1030 | POSS Red Plate #: 1030 | ||
| Database Update Level: 2 (Complete) | |||
| Contemporary Visual Observation(s) for NGC 3981 | |||
NGC 3981 = ESO 572-020 = MCG -03-31-001 = Arp 289 = VV 8 = UGCA 255 = PGC 37496 11 56 07.1 -19 53 49 V = 11.3; Size 5.2x2.3; SB = 13.8; PA = 15d 13.1": moderately bright, very elongated 3:1 SSW-NNE, weak concentration. A mag 13 star is off the E edge 1.0' from the center. The galaxy forms the E vertex of a rough isosceles triangle with two mag 10 stars 4.2' NW and 5.0' SSW. Forms a pair with M-03-31-003 13' ENE. | |||
| Data Sources Used to research NGC 3981 | |||
| [NGC] New General Catalogue / [IC] Index Catalogue (Dreyer - 1888, 1895, 1908) [OHCDSO] Observing Handbook and Catalog of Deep-Sky Objects (Luginbuhl & Skiff - 1990) [GD-NGCDDB] NGC Discoverer's Database (DeLange - 1987 to 2006) [ARP] Atlas of Peculiar Galaxies (H. Arp) [ESO] The ESO Uppsala Survey of the ESO(B) Atlas (Lauberts - 1982) [MCG] Morphological Catalog of Galaxies (Vorontsov-Velyaminov et al - 1962 thru 1968) [SGC] Southern Galaxy Catalog (Corwin - 1985) [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) [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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