SN 1999ec was a
type Ib supernova
Type Ib and Type Ic supernovae are categories of supernovae that are caused by the stellar core collapse of massive stars. These stars have shed or been stripped of their outer envelope of hydrogen, and, when compared to the spectrum ...
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
The Katzman Automatic Imaging Telescope (KAIT) is an automated telescope used in the search for supernovae.
The telescope had a first light in 1998, and is a noted robotic telescope. It had first recorded data in August 1996, and was formally de ...
at the Lick Observatory.[ The progenitor is estimated to have had 38 times the ]mass of the Sun
The solar mass () is a standard unit of mass in astronomy, equal to approximately . It is often used to indicate the masses of other stars, as well as stellar clusters, nebulae, galaxies and black holes. It is approximately equal to the mass of ...
and was 5.34 million years old at the time of the outburst.[
]
References
External links
Spectra
on th
Open Supernova Catalog
Simbad
Canis Major
Supernovae
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