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'''NGC 523''', also known as '''NGC 537, 4ZW 45, Arp 158, CGCG 521-22, IRAS 01225+3345, MCG 6-4-18, PGC 5268, UGC 979''', and '''V V 783''',<ref name="dso"/> is a galaxy located in the constellation ].<ref name="NGC"/> In the Catalogue of Named Galaxies, it is called '''Insolitus Andromedae''', or the ''odd'' galaxy.<ref>{{cite web|last1=Bodifee|first1=Gerard|title=Catalogue of One Thousand Named Galaxies|url=http://www.bodifee.be/wp-content/uploads/2015/08/2_CMG.pdf|accessdate=21 May 2017}}</ref> It was discovered separately by ] on September 13, ], and by ] on August 13, ]. d'Arrest's discovery was listed as NGC 523, while Herschel's was listed as NGC 537; the two are one and the same.<ref name="prof">{{cite web|url=http://cseligman.com/text/atlas/ngc5.htm#523|title=New General Catalog Objects: NGC 500 - 549|website=cseligman.com}}</ref> ] noted in the ] that NGC 523 had a double nebula.<ref name="NGC"/> '''NGC 523''', also known as '''NGC 537, 4ZW 45, Arp 158, CGCG 521-22, IRAS 01225+3345, MCG 6-4-18, PGC 5268, UGC 979''', and '''V V 783''',<ref name="dso"/> is a galaxy located in the constellation ].<ref name="NGC"/> It was discovered separately by ] on September 13, ], and by ] on August 13, ]. d'Arrest's discovery was listed as NGC 523, while Herschel's was listed as NGC 537; the two are one and the same.<ref name="prof">{{cite web|url=http://cseligman.com/text/atlas/ngc5.htm#523|title=New General Catalog Objects: NGC 500 - 549|website=cseligman.com}}</ref> ] noted in the ] that NGC 523 had a double nebula.<ref name="NGC"/>


== References == == References ==

Revision as of 03:49, 29 July 2017

NGC 523
Observation data
ConstellationAndromeda
Right ascension1 23.3 00
Declination+34° 02′ 00″
Redshift0.0159
Heliocentric radial velocity4758 +/- 4 km/s
Galactocentric velocity4904 +/- 7 km/s
Distance219 million light years away
Absolute magnitude (V)12.7
Characteristics
TypeSBc/P
Apparent size (V)2.5 feet x 42 inches
Other designations
NGC 537, 4ZW 45, Arp 158, CGCG 521-22, IRAS 01225+3345, MCG 6-4-18, PGC 5268, UGC 979, V V 783

NGC 523, also known as NGC 537, 4ZW 45, Arp 158, CGCG 521-22, IRAS 01225+3345, MCG 6-4-18, PGC 5268, UGC 979, and V V 783, is a galaxy located in the constellation Andromeda. It was discovered separately by William Herschel on September 13, 1784, and by Heinrich d'Arrest on August 13, 1862. d'Arrest's discovery was listed as NGC 523, while Herschel's was listed as NGC 537; the two are one and the same. John Dreyer noted in the New General Catalogue that NGC 523 had a double nebula.

References

  1. ^ Frommert, Hartmut. "NGC 523". spider.seds.org.
  2. ^ Rojas, Sebastián García. "Galaxy NGC 523 · Deep Sky Objects Browser". DSO Browser.
  3. ^ "Your NED Search Results". ned.ipac.caltech.edu.
  4. "New General Catalog Objects: NGC 500 - 549". cseligman.com.


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