SN 1999ec

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SN 1999EC
Observation data (Epoch J2000.0)
Supernova type SN Ib[1]
Host galaxy NGC 2207)
Constellation Canis Major
Right ascension 06h 16m 16.16s[2]
Declination −21° 22′ 09.8″[2]
Galactic coordinates 228.6723 -17.0277
Discovery date October 2, 1999[2]
Peak magnitude (V) 17.9[3]
Distance 31.3 Mpc[1]

SN 1999EC is a type Ib supernova that was discovered in the interacting galaxy NGC 2207 in October 1999.[2] It was found on images taken with the Katzman Automatic Imaging Telescope at the Lick Observatory.[2] The progenitor is estimated to have had 38 times the mass of the Sun and was 5.34 million years old at the time of the outburst.[1]


  1. ^ a b c Kuncarayakti, Hanindyo; et al. (August 2013), "Integral Field Spectroscopy of Supernova Explosion Sites: Constraining the Mass and Metallicity of the Progenitors. I. Type Ib and Ic Supernovae", The Astronomical Journal, 146 (2): 14 pp, arXiv:1305.1105free to read, Bibcode:2013AJ....146...30K, doi:10.1088/0004-6256/146/2/30, 30 
  2. ^ a b c d e Jha, S.; et al. (1999). "Supernova 1999ec in NGC 2207". IAUC. 7269: 2. Bibcode:1999IAUC.7269....2J. 
  3. ^ Barbon, R.; et al. (1999-11-01). "The Asiago Supernova Catalogue - 10 years after". Astronomy and Astrophysics Supplement Series. 139 (3): 531–536. arXiv:astro-ph/9908046free to read. Bibcode:1999A&AS..139..531B. doi:10.1051/aas:1999404. 

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