SN 2011by

Image from Richie Jarvis[1]
Event type	Supernova
Type Ia[1]
Date	April 26, 2011 (UTC)
Constellation	Ursa Major
Right ascension	11h 55m 45.56s[2]
Declination	+55° 19′ 33.8″[1]
Epoch	J2000
Redshift	0.003402 ±5e-06
Host	NGC 3972[1]
Peakapparent magnitude	< 12[1]
Other designations	SN 2011by
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SN 2011by was asupernova inNGC 3972. It was atype Ia supernova, discovered by Zhangwei Jin andXing Gao (China). SN 2011by is about 5.3" east and 19.1" north of the center of NGC 3972.^[1][2]

• Light curves and spectraArchived 2017-12-02 at theWayback Machine on theOpen Supernova CatalogArchived 2016-03-03 at theWayback Machine

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