SN 2003H was a
supernova
A supernova is a powerful and luminous explosion of a star. It has the plural form supernovae or supernovas, and is abbreviated SN or SNe. This transient astronomical event occurs during the last evolutionary stages of a massive star or when ...
that appeared halfway between the colliding
NGC 2207 and IC 2163
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NGC 2207 and IC 2163 are a pair of colliding spiral galaxies about 80 million light-years away in the constellation Canis Major. Both galaxies were discovered by John Herschel in 1835.
The larger spiral, NGC 2207, is classified as an i ...
galaxies.
It was discovered on January 8, 2003, by the ''Lick Observatory and Tenagra Supernova Searches'' (LOTOSS).
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References
External links
Spectra
on th
Open Supernova Catalog
Simbad
Canis Major
20030108
Supernovae
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