Supernovae 2012ht in NGC 3447

This page is devoted to information on Supernova 2012ht in NGC 3447.   Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page.   Information on the original web pages for many of these images can be found on the links web page.

image Discovered by Koichi Nishiyama and Fujio Kabashima (Japan).   This one is a Type Ia (z=0.003559).   This is another bright one.   This makes a string of bright supernovae this year. This supernova is in the Constellation Leo.

The following is a list of images of this SN, in chronological order. Click on the name in the "Image Credit" column to see the image. Times and dates are in UT unless otherwise noted. If you know of any others, please tell me!

Image CreditDateMagFilterComments
K. Nishiyama and F. Kabashima 2012/12/18.77218.6CDiscovery
Giancarlo Cortini 2012/12/20.0416.6C
Joseph Brimacombe 2012/12/20.67716.6IR
T. Yusa 2012/12/20.72416.1C
T. Yusa 2012/12/21.49215.9C
William Wiethoff 2012/12/22.416
Stan Howerton 2012/12/23.08914.8CV
JM Llapasset 2012/12/23.11814.3CR
JM Llapasset 2012/12/23.12414.4R
Paolo Demaria 2012/12/27
Stan Howerton 2012/12/27.16313.7V
Riccardo Mancini 2012/12/29.01013.2C
JM Llapasset 2012/12/30.20412.8CR
JM Llapasset 2012/12/30.21113.3Ic
JM Llapasset 2012/12/31.21212.8CR
JM Llapasset 2012/12/30.21313.1Rc
JM Llapasset 2012/12/30.21413.3V
JM Llapasset 2012/12/30.21813.6B
JM Llapasset 2012/12/31.21813.3Ic
JM Llapasset 2012/12/31.22113.1Rc
JM Llapasset 2012/12/31.22313.2V
JM Llapasset 2012/12/31.22813.4B
Enrico Prosperi 2013/01/01.06612.4CR
JM Llapasset 2013/01/02.18112.6:CR
JM Llapasset 2013/01/03.22512.9Rc
JM Llapasset 2013/01/03.23012.8V
Stan Howerton 2013/01/05.46413.1V
JM Llapasset 2013/01/06.20812.8CR
JM Llapasset 2013/01/07.18812.8CR
JM Llapasset 2013/01/08.17113.1Rc
JM Llapasset 2013/01/08.16312.9CR
JM Llapasset 2013/01/08.17513.1V
Pierre Hallsten 2013/01/09.46113.2V
JM Llapasset 2013/01/12.15813.1CR
Manuel Diaz 2013/01/13.14013.46CR
JM Llapasset 2013/01/16.97913.5C
CRTS 2013/01/1813.7CCSS130118:105323+164635
JM Llapasset 2013/01/18.06013.5CR
Stan Howerton 2013/01/18.46213.8V
Alessandro Odasso 2013/01/20.191C
Stan Howerton 2013/01/24.38114.3CV
Stan Howerton 2013/01/31.38814.7V
Massimiliano Martignoni 2013/02/07.99015.1V
JM Llapasset 2013/02/09.16214.9CR
JM Llapasset 2013/02/09.16615.0Rc
JM Llapasset 2013/02/09.16915.2V
JM Llapasset 2013/02/09.17316.1B
Stan Howerton 2013/02/14.32915.4V
JM Llapasset 2013/02/16.15515.6CV
JM Llapasset 2013/02/16.89715.5V
JM Llapasset 2013/02/16.89415.6CV
JM Llapasset 2013/02/16.90516.4B
JM Llapasset 2013/02/19.91315.6V
JM Llapasset 2013/02/19.90815.7CV
Thomas Langhans 2013/03/05.36415.5CR
JM Llapasset 2013/03/09.86716.3CV
JM Llapasset 2013/03/15.85316.5CV
JM Llapasset 2013/03/20.83916.6CV
Manfred Mrotzek 2013/04/02.955C
JM Llapasset 2013/04/10.85317.2CV
JM Llapasset 2013/04/24.83817.5CV

Light curves and Spectra:

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David Bishop