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| Digitized Sky Survey (DSS) Image Information for NGC 4242 | |||
|---|---|---|---|
| DSS Acknowledgement , DSS Copyright Notice | DSS Image Generation: 1st Generation DSS Image | ||
| Image Center (2000): 12h 17m 30.1s; +45º 37' 08" | Image File Name: n4242.jpg | ||
| Image Size (arcminutes): 10' x 10' | Image Size (pixels): 353 x 353 | ||
| Original NGC Catalogue Data for NGC 4242 | |||
| General Catalogue Designation: 2830 | William Herschel Designation: III 725 | ||
| John Herschel Designation: 1166 | Other Observers: ... | ||
| Right Ascension (Equinox 1860): 12h 10m 21s | Annual RA Precession (Equinox 1880): +3.00s | ||
| North Polar Declination (Equinox 1860): 43° 35.8' | Annual DEC Precession (Equinox 1880): +20.0" | ||
| Summary Description: vF, cL, iR, vgbM, r | |||
| Notes: … | Comments: … | ||
| Discovered by: Friedrich Wilhelm Herschel (1738 - 1822) | Year of Discovery: 1788 | ||
| Telescope Aperture (Inches): 18.7 | Telescope Type: Reflector | ||
| Understanding the 'Summary Description': Summary Description Abbreviations List | |||
| Contemporary/Current Data for NGC 4242 | |||
| Right Ascension (2000): 12h 17m 30.1s | Declination (2000): +45º 37' 08" | ||
| Object Type: Galaxy | Object Classification: SAB(s)dm IV | ||
| Constellation: Canes Venatici | Position Angle: 25 ° | ||
| Visual Magnitude: 11.1 | Surface Brightness: 14.2 | ||
| Blue Magnitude: 11.6 | Object Size: 5.0'X3.8' | ||
| Also Cataloged As: | UGC 7323, MCG+08-22-098, PGC 39423, H III-725, h 1166, GC 2830, CGCG 243.061 | ||
| Catalogue Notes: --------------- | |||
| Book / Chart References for NGC 4242 | |||
| Luginbuhl & Skiff (Page): 47 | Burnham's (Volume : Page): ------ | ||
| Uranometria 2000: 74 | Herald-Bobroff Astroatlas: C-11,C-12,C-30,D-35 | ||
| Microsky: 172 | GSC Small Region Number: 3455 | ||
| POSS Blue Plate #: 1408 | POSS Red Plate #: 1408 | ||
| Database Update Level: 2 (Complete) | |||
| Contemporary Visual Observation(s) for NGC 4242 | |||
NGC 4242 = UGC 07323 = MCG +08-22-098 = CGCG 243-061 = PGC 39423 12 17 30.1 +45 37 08 V = 10.8; Size 5.0x3.8; SB = 13.9; PA = 25d 13.1": very large but very diffuse, 4' diameter, broad weak concentration, large core appears offset to the west, almost round. A mag 11.5 star lies 3.2' east of center and a faint mag 14 star is at the south edge 2.0' from center. | |||
| Data Sources Used to research NGC 4242 | |||
| [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) [RC3] Third Reference Catatalog of Bright Galaxies (de Vaucouleurs, Corwin, Buta, et. al. - 1991) [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) [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 |
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