NGC 6956

NGC 6956
NGC 6956 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation	Delphinus [1]
Right ascension	20h 43m 53.7237s [2]
Declination	+12° 30′ 42.856″ [2]
Redshift	0.015561 [3]
Heliocentric radial velocity	4629 km/s [3]
Apparent magnitude  (B)	13.5 [3]
Characteristics
Type	SBb [3]
Size	153,700 ly (47.15 kpc) (estimated) [4]
Other designations
IRAS 20415+1219, 2MASX J20435368+1230429, NGC 6956, UGC 11619, MCG +02-53-001, PGC 65269 [3]

NGC 6956 is a barred spiral galaxy located in the constellation Delphinus. ^[1] It is located at a distance of about 214 million light-years from Earth. Friedrich Wilhelm Herschel discovered this galaxy on 9 October 1784.

Supernovae

Three supernovae have been observed in NGC 6956:

• SN 2006it (Type II-P, mag. 17.6) was discovered by Lick Observatory Supernova Search (LOSS) on 1 October 2006. ^{[5] [6]}
• SN 2013fa (Type Ia, mag. 16.2) was discovered by Kōichi Itagaki on 25 August 2013. ^{[7] [8]}
• PSN J20435314+1230304 (Type Ia, mag. 15.8) was discovered by Massimo Caimmi of the Italian Supernovae Search Project (ISSP) on 11 July 2015. ^[9]

References

1. "NGC 6956". sky-map.org. Retrieved 16 December 2022.
2. Gaia Collaboration (2020-11-01). "VizieR Online Data Catalog: Gaia EDR3 (Gaia Collaboration, 2020)". VizieR Online Data Catalog: I/350. Bibcode:2020yCat.1350....0G. doi:10.26093/cds/vizier.1350.
3. "NGC 6956". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 16 December 2022.
4. "NED Results for NGC 6956" . Retrieved 10 August 2025.
5. Frieman, J.; Joubert, N.; Mostardi, R.; Prasad, R. R.; Lee, N.; Baek, M.; Li, W.; Sehgal, A.; Gagliano, R.; Puckett, T. (2006). "Supernovae 2006ha-2006iu". International Astronomical Union Circular (8758): 1. Bibcode:2006IAUC.8758....1F.
6. "SN 2006it". Transient Name Server. IAU . Retrieved 4 August 2025.
7. Nakano, S. (2013). "Supernova 2013fa in NGC 6956 = PSN J20435357+1230517". Central Bureau Electronic Telegrams (3641): 1. Bibcode:2013CBET.3641....1N.
8. "SN 2013fa". Transient Name Server. IAU . Retrieved 4 August 2025.
9. Bishop, David. "Supernovae PSN J20435314+1230304 in NGC 6956". Rochester Astronomy. Retrieved 4 August 2025.

External links

• NGC 6956 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
• NGC 6956 on SIMBAD