SN 2010lt

Event type	Supernova
Ia (sub-luminous)[1]
Date	2 January 2011
Constellation	Camelopardalis
Right ascension	06h 06m 09s[1]
Declination	+83° 50′ 28″[1]
Epoch	J2000
Distance	240Mly[2]
Remnant	?
Host	UGC 3378[3]
Progenitor	–
Progenitor type	–
Colour (B-V)	Unknown
Notable features	None
Peakapparent magnitude	+17.0[3]
Other designations	SN 2010lt
Website	www.kathrynauroragray.com
[edit on Wikidata]

SN 2010lt is asupernova located in the galaxyUGC 3378 inCamelopardalis. It was discovered by amateurastronomers Kathryn Aurora Gray, her father Paul Gray, ofFredericton,New Brunswick,Canada andDavid J. Lane of Stillwater Lake,Nova Scotia,Canada. Upon discovery, Kathryn Aurora Gray became the youngest person to ever discover a supernova, being 10 years old when she did so.^[2][4] The previous record was held by the 14-year-oldCaroline Moore.

The images were taken at Lane's Abbey Ridge Observatory on 31 December 2010 with aCelestron C14 0.36-meterf/5.5telescope, and the supernova was spotted by them on 2 January 2011.^[1] The discovery was confirmed on 3 January 2011 by the amateur astronomers Brian Tieman andJack Newton and announced by theIAU Central Bureau of Astronomical Telegrams at theHarvard–Smithsonian Center for Astrophysics,Cambridge, Massachusetts. It was announced by theRoyal Astronomical Society of Canada on the same day.^[5]

• David J. Lane: SN 2010lt is Lane's fourth discovery of a supernova. The previous wereSN 1995F,^[6]SN 2005B andSN 2005ea. All were discovered with Paul Gray.
• Paul Gray: SN 2010lt is his seventh discovery of a supernova.
• Kathryn Aurora Gray: her first discovery.

SN 2010lt is about 20" west and 10" north of the galaxy center. It is a sub-luminous (1991bg-like)type Ia supernova and was discovered when near maximum light. The supernova could not be detected (detection limit approximately 18.5 ofapparent magnitude) at its current position on images taken between October 2005 and March 2006.^[1]

• List of supernovae

• Dave Lane website,Supernovae discoveries made by Paul Gray and Dave Lane from Abbey Ridge Observatory
• Abbey Ridge Observatory
• Images of SN 2010lt by Joseph Brimacombe inflickr
• Kathryn Gray's website

• Supernovae
• Camelopardalis
• Astronomical objects discovered in 2011

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