Supernova 2009an in NGC 4332

This page is devoted to information on Supernova 2009an in NGC 4332.   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 updates and links web pages.

Discovered by Giancarlo Cortini and Stefano Antonellini (Italy); Mikko Paivinen and Petri Kehusmaa (Finland).   We have a DSS Photometry reference image made by Odd Trondal.  Icon generated from the Itagaki image.   This supernova is in the Constellation Draco.

Web pages dedicated to this SN.
• Sergey Nazarov web page
• SNWeb has a 2009an page

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 Credit	Date	Mag	Filter	Comments
Paivinen and Kehusmaa	2009/02/26.06	15.6	C	Discovery
Cortini and Antonellini	2009/02/27.93	15.4	C	Discovery
Markku Nissinen	2009/02/28.29	15.4	R	Confirmation
Stefano Moretti	2009/02/28.416		C	Confirmation
Koichi Itagaki	2009/02/28.583		C	Confirmation
Stefano Moretti	2009/02/28.8		C	color
William Wells	2009/03/01.281		C
Joseph Brimacombe	2009/03/01.3	15.4	C
William Wiethoff	2009/03/02.164		C
Stan Howerton	2009/03/02.275	15.2	V
Joseph Brimacombe	2009/03/02.45	15.3	C	color
Sergey Nazarov	2009/03/03.608		C
Andy Cason	2009/03/04.098		C
Jordi Camarasa	2009/03/04.975		C
Sergey Nazarov	2009/03/04.980		C
Jordi Camarasa	2009/03/06.853		C
Enrico Prosperi	2009/03/08.018	14.1	C
Diego RodrМguez	2009/03/08.910	14.7	CR
Enrico Prosperi	2009/03/09.933	14.1	C
Enrico Prosperi	2009/03/11.163	14.2	C
Faustino Garcia	2009/03/12.976	14.71	CR
Pedro Re	2009/03/13.992	14.47	C
JM Llapasset	2009/03/15.842	14.8	CR
JM Llapasset	2009/03/15.854	14.9	R
JM Llapasset	2009/03/15.858	14.7	V
JM Llapasset	2009/03/15.867	15.1	B
Giancarlo Cortini	2009/03/16.95	14.9	C
Martin Nicholson	2009/03/16.339	14.75	V
JM Llapasset	2009/03/16.822	14.9	CR
JM Llapasset	2009/03/16.830	15.0	R
JM Llapasset	2009/03/16.834	14.8	V
JM Llapasset	2009/03/16.843	15.1	B
Joel Nicolas	2009/03/16.886	14.9	CR
Stan Howerton	2009/03/17.164	14.5	V
John N. Gretchen III	2009/03/17.2	14.7	CR	color version
JM Llapasset	2009/03/17.819	15.0	CR
JM Llapasset	2009/03/17.823	15.1	R
JM Llapasset	2009/03/17.829	14.9	V
JM Llapasset	2009/03/17.840	15.2	B
JM Llapasset	2009/03/18.825	15.1	CR
JM Llapasset	2009/03/18.829	15.1	R
JM Llapasset	2009/03/18.835	14.9	V
JM Llapasset	2009/03/18.846	15.3	B
Darkside Obs	2009/03/19.972		C
Rodrigo Losada	2009/03/19.979	15.4	CR
Diego RodrМguez	2009/03/20.898	15.10	CR
Pedro RИ	2009/03/20.949	15.23	C
George Potter	2009/03/22		C
JM Llapasset	2009/03/22.801	15.3	CR
JM Llapasset	2009/03/22.801	15.4	R
JM Llapasset	2009/03/22.811	15.1	V
JM Llapasset	2009/03/22.822	15.7	B
Pedro RИ	2009/03/27.911	15.57	C
Joel Nicolas	2009/03/27.913	15.4	CR
William Wiethoff	2009/03/30.204		C
Joel Nicolas	2009/03/30.994	15.5	CR
Stan Howerton	2009/04/03.259	16.3	C
Joel Nicolas	2009/04/02.907	15.8	CR
Michael Hauss	2009/04/09.086	15.9	CR
Giancarlo Cortini	2009/04/14.8	17.7	C
Joel Nicolas	2009/04/14.850	16.5	CR
Joel Nicolas	2009/04/22.973	16.8	CR
Cortini Gaincarlo	2009/04/24.90	16.7	C
Pedro RИ	2009/04/24.922	17.23	C
Pedro RИ	2009/04/30.935	17.4	C
Pedro RИ	2009/05/03.015	17.2	C
Joel Nicolas	2009/05/01.863	17.1	CR
Joel Nicolas	2009/05/26.905	17.9	CR

Light curves and Spectra:
• CfA spectrum
• Kanata spectrum
• SNWeb Measurements and light curve.