SN 2004dj

Supernova
name = SN 2004dj


type = II-P
SNRtype = Nebula
host = NGC 2403
constellation = Camelopardalis
epoch = J2000.0
ra = 07^h 37^m 17.044^s
dec = +65° 35′ 57.84″
gal = ?
discovery = 31 July 2004 18:15 UTC
iauc = [http://cfa-www.harvard.edu/iauc/08300/08377.html]
mag_v = +11.2
distance = about 11,000,000 light-years [http://antwrp.gsfc.nasa.gov/apod/ap040907.html]
progenitor = Unknown star in compact cluster Sandage 96
progenitor_type = Supergiant
b-v = Unknown
notes = Light Curves

SN 2004dj was the brightest supernova since SN 1987A at the time of its discovery.

This Type II-P supernova was discovered by Koichi Itagaki, a Japanese astronomer on July 31, 2004. At the time of its discovery, its apparent brightness was 11.2 visual magnitude; the discovery occurred after the supernova had reached its peak magnitude. The supernova's progenitor is a star in a young, compact star cluster in the galaxy NGC 2403, in Camelopardalis. The cluster had been cataloged as the 96^th object in a list of luminous stars and clusters by Allan Sandage in 1984; the progenitor is therefore commonly referred to as Sandage 96. This cluster is easily visible in a Kitt Peak National Observatory image and appears starlike.

External links

* [http://www.supernovae.net/sn2004/sn2004dj.html supernovae.net image collection]
* [http://antwrp.gsfc.nasa.gov/apod/ap040907.html Cropped and rotated HST photograph]
* [http://www.rochesterastronomy.org/sn2004/sn2004dj.html Bright Supernova page on 2004dj]
* [http://www.camk.edu.pl/~gwar/astro-ph/2004.08.17.html The Progenitor of the Type II-P SN 2004dj in NGC 2403] (Abstract and Paper)