NGC 57 explained

Upright:	1.35
NGC 57
Epoch:	J2000
Type:	E^[1]
Z:	0.018146
Dist Ly:	243 Mly^[2]
Appmag V:	11.8^[3]
Appmag B:	12.8
Size V:	2.2 × 1.9
Constellation Name:	Pisces
Names:	UGC 145, PGC 1037

NGC 57 is an elliptical galaxy in the constellation Pisces.^[3] 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

• • Elliptical galaxy List of NGC objects (1–1000)
• Pisces (constellation)

External links

• • Discovery image of SN 2010dq (2010-06-03) / Wikisky DSS2 zoom-in of same region

Notes and References

1. Web site: NASA/IPAC Extragalactic Database . Results for NGC 57 . 2006-12-22 .
2. An object's distance from Earth can be determined using Hubble's law: v=H_o 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=H_o
3. Web site: Revised NGC Data for NGC 57. spider.seds.org. 2017-12-18.
4. Web site: New General Catalog Objects: NGC 50 - 99. cseligman.com. en-US. 2017-12-18.
5. Web site: Latest Supernovae . supernovae.net (International Supernovae Network) . David Bishop . 2010-06-04.
6. http://www.cbat.eps.harvard.edu/cbet/002800/CBET002820.txt Cbet 2820 del 20 settembre 2011