NGC 3506

NGC 3506
	NGC 3506 by Hubble Space Telescope
Observation data (J2000 epoch)
Constellation	Leo
Right ascension	11h 03m 13.0s[1]
Declination	11° 04′ 36″[1]
Redshift	6408 ± 3 km/s[1]
Distance	297 Mly (86 Mpc)[1]
Apparent magnitude (V)	12.6
Characteristics
Type	Sc [1]
Apparent size (V)	1′.2 × 1′.1[1]
Other designations
	UGC 6120, MCG +02-28-047, PGC 33379[1]

NGC 3506 is a spiral galaxy in constellation Leo. It is located at a distance of circa 300 million light years from Earth, which, given its apparent dimensions, means that NGC 3506 is about 115,000 light years across. The galaxy has two main spiral arms, with high surface brightness, which can be traced for half a revolution before they fade. One arm splits into four spiral arcs.[2]

Two supernovae have been observed in NGC 3506, SN 2003L (type Ic) and 2017dfq (type Ia, mag. 15.3[3]). SN 2003L spectrum featured a relatively blue continuum, dominated by strong P-Cyg lines of Ca II (H and K) and Fe II and a relatively weaker Si II 635.5-nm line was also visible.[4]

It is an isolated galaxy.[5]

References

"NASA/IPAC Extragalactic Database". Results for NGC 3506. Retrieved 2016-01-18.
Sandage, A.; Bedke, J. (1994). The Carnegie Atlas of Galaxies. Volume I. Carnegie Institution of Washington.
Latest Supernovae rochesterastronomy.org
IAUC 8057: 2003P; 2003L, 2003M,, 2003O International Astronomical Union Circular January 25, 2003
Hern?ndez-Toledo, H. M.; V?zquez-Mata, J. A.; Mart?nez-V?zquez, L. A.; Choi, Yun-Young; Park, Changbom (1 June 2010). "The UNAM-KIAS Catalog of Isolated Galaxies". The Astronomical Journal. 139 (6): 2525–2541. arXiv:1005.1571. Bibcode:2010AJ....139.2525H. doi:10.1088/0004-6256/139/6/2525.

External links

NGC 3506 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

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[ned-1] "NASA/IPAC Extragalactic Database". Results for NGC 3506. Retrieved 2016-01-18.

[2] Sandage, A.; Bedke, J. (1994). The Carnegie Atlas of Galaxies. Volume I. Carnegie Institution of Washington.

[3] Latest Supernovae rochesterastronomy.org

[4] IAUC 8057: 2003P; 2003L, 2003M,, 2003O International Astronomical Union Circular January 25, 2003

[5] Hern?ndez-Toledo, H. M.; V?zquez-Mata, J. A.; Mart?nez-V?zquez, L. A.; Choi, Yun-Young; Park, Changbom (1 June 2010). "The UNAM-KIAS Catalog of Isolated Galaxies". The Astronomical Journal. 139 (6): 2525–2541. arXiv:1005.1571. Bibcode:2010AJ....139.2525H. doi:10.1088/0004-6256/139/6/2525.