SN 1999ec

SN 1999EC
Event typeSupernova Edit this on Wikidata
SN Ib
DateOctober 2, 1999
ConstellationCanis Major
Right ascension06h 16m 16.16s
Declination−21° 22′ 09.8″
EpochJ2000.0
Galactic coordinates228.6723 -17.0277
Distance31.3 Mpc
HostNGC 2207)
Progenitor38 M☉ star
Peak apparent magnitude17.9
Other designationsSN 1999ec
[edit on Wikidata]

SN 1999ec was a Type Ib supernova that was discovered in the interacting galaxy NGC 2207 on October 2, 1999. It was found on images taken with the Katzman Automatic Imaging Telescope at the Lick Observatory. 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.

References

  1. 1 2 3 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:1305.1105, Bibcode:2013AJ....146...30K, doi:10.1088/0004-6256/146/2/30, S2CID 118671861, 30
  2. 1 2 3 4 5 Jha, S.; et al. (1999). "Supernova 1999ec in NGC 2207". IAU Circular (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/9908046. Bibcode:1999A&AS..139..531B. doi:10.1051/aas:1999404. S2CID 40532321.