NGC 657 explained

NGC 657
Credit:	Sloan Digital Sky Survey
Epoch:	J2000
Constellation:	Cassiopeia
Dist Ly:	6308 ly
Dist Pc:	1934 pc^[1]
Age:	~1 Gyr
Names:	C 0140+556, MWSC 135^[2]

NGC 657 is an open cluster containing very few stars or a group of stars located in the constellation Cassiopeia. It was discovered by British astronomer John Herschel in 1831.^{[3] [4]}

See also

• List of NGC objects (1–1000)

Notes and References

1. 10.1051/0004-6361/201322302. 2013A&A...558A..53K. Global survey of star clusters in the Milky Way. 2013. Kharchenko. N. V.. Piskunov. A. E.. Schilbach. E.. Röser. S.. Scholz. R.-D.. Astronomy & Astrophysics. 558. A53. free. 1308.5822.
2. NGC 657. 2020-05-23.
3. Web site: The open cluster NGC 657 - In-The-Sky.org. Ford. Dominic. in-the-sky.org. en. 2020-04-05.
4. Web site: Your NED Search Results. ned.ipac.caltech.edu. 2020-04-05.