UGC 12682

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UGC 12682 imaged by the Hubble Space Telescope.[1]

Observation data (J2000 epoch)
Constellation| Pegasus
Right ascension|  23h 34m 53.212s[2]
Declination| +18° 13′ 36.804″
Redshift| 0.004623
Helio radial velocity| 1389 km/s
Distance| 49.2 ± 3.7 Mly (15.10 ± 1.12 Mpc)[3]
Characteristics
Type| Im[3]
Size| ~30,400 ly (9.31 kpc) (estimated)[3]
Other designations
UCM 2332+1757, DDO 218, IRAS 23323+1757, MCG+03-60-007, PGC 71801

References: MCG

UGC 12682 is an irregular galaxy, located in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is 1024 ± 25 km/s, which corresponds to a Hubble distance of 49.2 ± 3.7 Mly (15.10 ± 1.12 Mpc).[3] In addition, one non redshift measurement gives a distance of 65 Mly (20.0 Mpc).[4] The earliest known reference to this galaxy is from the 1959 journal A Catalogue of Dwarf Galaxies by Sidney Van Den Bergh, where it is listed as DDO 218.[5]

On 7 November 2008, 14-year-old amateur astronomer Caroline Moore from Warwick, New York, became the youngest supernova discoverer at the time, when she found SN 2008ha (type Ia, mag. 18.8)[6] in UGC 12682.[1][7]

## See also

* Irregular galaxy
* Uppsala General Catalogue

## References

1. ↑ 1.0 1.1 "A failed supernova?". https://www.spacetelescope.org/images/potw1828a/. Retrieved 9 July 2018.
2. ↑ "UGC 12682". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=UGC+12682.
3. ↑ 3.0 3.1 3.2 3.3 "Results for object UGC 12682". NASA/IPAC Extragalactic Database. California Institute of Technology. https://ned.ipac.caltech.edu/byname?objname=UGC+12682. Retrieved 2021-02-28.
4. ↑ "Distance Results for UGC 12682". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=UGC+12682. 12682&rft.atitle=&rft.pub=[[Organization:NASA|NASA]]&rft_id=https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=UGC+12682&rfr_id=info:sid/en.wikibooks.org:Astronomy:UGC_12682">
5. ↑ Van Den Bergh, Sidney (1959). "A Catalogue of Dwarf Galaxies". Publications of the David Dunlap Observatory 2 (5): 147. Bibcode: 1959PDDO....2..147V.
6. ↑ "SN 2008ha". IAU. https://www.wis-tns.org/object/2008ha. 2008ha&rft.atitle=&rft.pub=[[Organization:International+Astronomical+Union|IAU]]&rft_id=https://www.wis-tns.org/object/2008ha&rfr_id=info:sid/en.wikibooks.org:Astronomy:UGC_12682">
7. ↑ "New York Teen Finds Wimpiest Supernova". June 12, 2009. http://www.skyandtelescope.com/astronomy-news/new-york-teen-finds-wimpiest-supernova/.

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Astronomical catalogs

UGC|

* Astronomy:UGC 12678
* Astronomy:UGC 12679
* Astronomy:UGC 12680
* Astronomy:UGC 12681
* UGC 12682
* Astronomy:UGC 12683
* Astronomy:UGC 12684
* Astronomy:UGC 12685
* Astronomy:UGC 12686

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Stars of Pegasus

Bayer|

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Flamsteed|

* 1
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* 23 Psc
* 34 Vul

Variable|

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HR|

* 19
* 49
* 8116
* 8219
* 8221
* 8231
* 8250
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* 8274
* 8292
* 8325
* 8341
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* 8839
* 8873
* 8922
* 8942
* 8953
* 8970
* 9039
* 9055
* 9078
* 9109

HD|

* 434
* 204603
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* 205422
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* 206689
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* 209709
* 210890
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* 213025
* 215549
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Gliese|

* Gliese 829
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Other|

* BD+14 4559
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* X2127+119

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