NGC 1989 explained

NGC 1989
Epoch:	J2000
Type:	S0
Ra:	^[1]
Appmag B:	14.13
Appmag V:	12.9^[2]
Size:	1.40 x 1.1^[3]
H Radial V:	10557
Constellation Name:	Columba
Z:	0.035858
Dist Ly:	482 Million
Names:	ESO 423-21, MCG -5-14-4, AM 0532-304, PGC 17464

NGC 1989 (also known as ESO 423-21) is a lenticular galaxy in the Columba constellation. It is about 482 million light-years away from the Milky Way. The galaxy was discovered by John Herschel on January 28, 1835.^[4] Its apparent magnitude is 12.9^[2] and its size is 1.40 by 1.1 arc minutes.^[3]

Notes and References

1. Web site: NGC 1989 -- Brightest galaxy in a Cluster (BCG). SIMBAD. 25 November 2017.
2. Web site: Galaxy NGC 1989. DSO. 25 November 2017. 1 December 2017. https://web.archive.org/web/20171201032429/https://dso-browser.com/deep-sky/2914/ngc-1989/galaxy. dead.
3. Web site: Object: NGC 1989 (*). SEDS. 25 November 2017.
4. Web site: NGC 1989 (= PGC 17464). cseligman. 25 November 2017.