SN 2007sr

SN 2007sr was a Type Ia supernova event that happened in the galaxy NGC 4038. It was announced on December 18, 2007, but was visible on images beginning December 7. It peaked at magnitude 12.7 on December 14.[2]

SN 2007sr
Other designationsSN 2007sr
Event typeSupernova 
Spectral classIa[1]
DateDecember 18, 2007[2]
ConstellationCorvus
Right ascension 12h 01m 52.80s[1]
Declination−18° 58′ 21.7″[1]
EpochJ2000.0
Galactic coordinates286.9944 +42.3602
Distance72.7 ± 9.1 Mly (22.3 ± 2.8 Mpc)[3]
Redshift0.006, 0.0045 
HostNGC 4038[2]
Peak apparent magnitude12.70[2]

References
  1. Drake, A. J.; et al. (May 2009), "First Results from the Catalina Real-Time Transient Survey", The Astrophysical Journal, 696 (1): 870–884, arXiv:0809.1394, Bibcode:2009ApJ...696..870D, doi:10.1088/0004-637X/696/1/870.
  2. Pojmanski, G.; et al. (January 2008), Green, D. W. E. (ed.), "Supernova 2007sr in NGC 4038", Central Bureau Electronic Telegrams (1213): 1, Bibcode:2008CBET.1213....1P.
  3. Schweizer, François; et al. (October 2008), "A New Distance to the Antennae Galaxies (NGC 4038/39) Based on the Type Ia Supernova 2007sr", The Astronomical Journal, 136 (4): 1482–1489, arXiv:0807.3955, Bibcode:2008AJ....136.1482S, doi:10.1088/0004-6256/136/4/1482.
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