Astronomy:NGC 57
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Short description: Galaxy in the constellation Pisces
| NGC 57 | |
|---|---|
 NGC 57 as seen on SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Pisces[1] |
| Right ascension | 00h 15m 30.9s[2] |
| Declination | +17° 19′ 42″[2] |
| Redshift | 0.018146[2] |
| Helio radial velocity | 5,440 ± 22 km/s[2] |
| Distance | 243 Mly[3] |
| Apparent magnitude (V) | 11.8[1] |
| Apparent magnitude (B) | 12.8[1] |
| Characteristics | |
| Type | E[2] |
| Apparent size (V) | 2.2′ × 1.9′[2] |
| Other designations | |
| UGC 145,[2] PGC 1037[2] | |
NGC 57 is an elliptical galaxy in the constellation Pisces.[1] It was discovered on 8 October 1784 by astronomer William Herschel.[4]
SN 2010dq
On June 3, 2010, Koichi Itagaki detected a magnitude 17 supernova 17" west and 1" south of the center of NGC 57 at coordinates 00 15 29.70 +17 19 41.0: Itagaki detected the August 29th 2011 an other supernova in NGC 57, 2011fp, with magnitude 17,9.[5][6]
See also
NGC 57 (2MASS)
References
- ↑ 1.0 1.1 1.2 1.3 "Revised NGC Data for NGC 57". http://spider.seds.org/ngc/revngcic.cgi?NGC57.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 "NASA/IPAC Extragalactic Database". Results for NGC 57. http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+57&img_stamp=yes&extend=no.
- ↑ An object's distance from Earth can be determined using Hubble's law: v=Ho is Hubble's constant (70±5 (km/s)/Mpc). The relative uncertainty Δd/d divided by the distance is equal to the sum of the relative uncertainties of the velocity and v=Ho
- ↑ "New General Catalog Objects: NGC 50 - 99" (in en-US). http://cseligman.com/text/atlas/ngc0a.htm#57.
- ↑ David Bishop. "Latest Supernovae". supernovae.net (International Supernovae Network). http://www.rochesterastronomy.org/snimages/.
- ↑ Cbet 2820 del 20 settembre 2011
External links
- NGC 57 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- Discovery image of SN 2010dq[yes|permanent dead link|dead link}}] (2010-06-03) / Wikisky DSS2 zoom-in of same region
Coordinates: 
00h 15m 30.9s, +17° 19′ 42″
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