NGC 7752 and NGC 7753

{{Short description|Pair of galaxies in the constellation of Pegasus}}

{{Infobox Galaxy

| name = NGC 7752 / 7753

| image = NGC7752, NGC7753 - HST - Potw2142a.jpg

| caption = NGC 7753 (big) and 7752 (small, bottom right), imaged by the Hubble Space Telescope

| epoch = J2000

| type = I0 / SAB(rs)bc{{cite web

| title=NASA/IPAC Extragalactic Database

| work=Results for NGC 7752 / 7753

| url=http://nedwww.ipac.caltech.edu/

| accessdate=2006-11-21 }}

| ra = {{RA|23|46|58.5}} / {{RA|23|47|04.8}}

| dec = {{DEC|+29|27|32}} / {{DEC|+29|29|00}}

| dist_ly = 272 Mly{{cite web|last1=Normandin|first1=George|title=NGC 7753 and NGC 7752 (aka Arp 86): Interacting Galaxies|url=http://www.kopernik.org/images/archive/n7753.htm|website=Kopernik Observatory|accessdate=30 June 2015|archiveurl=https://web.archive.org/web/20160303170315/http://www.kopernik.org/images/archive/n7753.htm|archivedate=3 March 2016|url-status=dead}}

| h_radial_v = 5072 ± 5 / 5168 ± 6 km/s

| appmag_v = 15.0 / 12.8

| size_v = 0.8{{prime}} × 0.5{{prime}} / 3.3{{prime}} × 2.1{{prime}}

| constellation name = Pegasus

| names = UGC 12779 / 12780, PGC 72382 / 72387, Arp 86

}}

NGC 7752 and NGC 7753 are a pair of galaxies approximately 272 million light-years away in the constellation Pegasus. They were discovered by R. J. Mitchell on 22 November 1854.{{cite web | url=https://cseligman.com/text/atlas/ngc77a.htm#7752 | title = New General Catalogue Objects: NGC{{nbsp}}7752 (with NGC 7753 = Arp 86) | last = Seligman | first = Courtney | website = Celestial Atlas | access-date = 20 May 2025}}

NGC 7753 is the primary galaxy. It is a barred spiral galaxy with a small nucleus. NGC 7752 is the satellite galaxy of NGC 7753. It is a barred lenticular galaxy that is apparently attached to one of NGC 7753's spiral arms. They resemble the Whirlpool Galaxy (M51A) and its satellite NGC 5195 (M51B).

Supernovae

Five supernovae have been observed in NGC 7753:

  • SN 2006A (type unknown, mag. 18.1) was discovered by Tom Boles on 2 January 2006.{{cite journal |bibcode=2006IAUC.8656....3B |title=Supernova 2006A in NGC 7753 |last=Boles |first= Tom |journal=International Astronomical Union Circular |issue=8656 |page=3 |year=2006 | url= http://www.cbat.eps.harvard.edu/iauc/08600/08656.html#Item3}}{{cite web | website=Transient Name Server | title=SN{{nbsp}}2006A | url=https://www.wis-tns.org/object/2006A | publisher = IAU | access-date=20 May 2025}}
  • SN 2006ch (type{{nbsp}}Ia, mag. 16.5) was discovered by Kōichi Itagaki on 9 May 2006.{{cite journal |bibcode=2006IAUC.8711....1Q |title=Supernovae 2006cg and 2006ch |last1=Quimby |first1= R | last2= Mondol |first2= P | last3=Itagaki | first3= K | last4= Nakano |first4= S. |journal=International Astronomical Union Circular |issue=8711 |page=1 |year=2006 | url= http://www.cbat.eps.harvard.edu/iauc/08700/08711.html#Item1}}{{cite web | website=Transient Name Server | title=SN{{nbsp}}2006ch | url=https://www.wis-tns.org/object/2006ch | publisher = IAU | access-date=20 May 2025}}
  • SN 2013Q (type Ia, mag. 17.5) was discovered by Zhijian Xu and Xing Gao, and independently by Alessandro Dimai, on 25 January 2013.{{cite journal |bibcode=2013CBET.3401....2X |title=Supernova 2013Q in NGC 7753 = Psn J23470787+2929115 |last1=Xu | first1= Zhijian |last2= Gao |first2= Xing |last3= Koff |first3= R. A. |last4= Elenin | first4= L. |last5= Molotov |first5= I. | last6= Tomasella |first6= L. |last7= Benetti | first7= S. | last8= Cappellaro | first8= E |journal=Central Bureau Electronic Telegrams |issue=3401 |page=2 |year=2013}}{{cite web | website=Transient Name Server | title=SN{{nbsp}}2013Q | url=https://www.wis-tns.org/object/2013Q | publisher = IAU | access-date=20 May 2025}}
  • SN 2015ae (type{{nbsp}}II, mag. 17.3) was discovered by Kōichi Itagaki on 6 August 2015.{{cite web | website=Transient Name Server | title=SN{{nbsp}}2015ae | url=https://www.wis-tns.org/object/2015ae | publisher = IAU | access-date=20 May 2025}}
  • SN 2025kyg (type Ia, mag. 15.7277) was discovered by the Automatic Learning for the Rapid Classification of Events (ALeRCE) on 21 May 2025.{{cite web | website=Transient Name Server | title=SN{{nbsp}}2025kyg | url=https://www.wis-tns.org/object/2025kyg | publisher = IAU | access-date=21 May 2025}}

See also

References

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