Supernova 2002bx in IC 2461

This page is devoted to information on Supernova 2002bx in IC 2461 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 independantly by LOTOSS and Tom Boles (UK). This is found to be a type II supernova on the rise in an edge on galaxy. We have a DSS Photometry reference image made by Odd Trondal.  Icon generated from the Pollux Observatory image.

Web pages dedicated to this SN.
• SNWeb has a 2002bx page.
• M1 Sn search has a 2002bx page

The following is a list of images of this SN, in chronological order. Click on the name in the "observer" 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
LOTOSS image	2002/04/01.2	16.8	C	Discovery
Tom Boles image	2002/04/01.943	16.2	C	Discovery, mirror, local mirror
Mark Armstrong image	2002/04/03.900		C
G. Vandenbulcke image	2002/04/04		C
Remanzacco Obs image	2002/04/04		C
A. Leroy image	2002/04/04.918		CR
Fred Ewalt image	2002/04/05.076	16.7	C
Matin Mobberley image	2002/04/05.852		C
J.B. De Vanssay image	2002/04/08.907	16.4	CR
R. Poncy image	2002/04/09.821	16.7	CR
Pepe Manteca image	2002/04/09.989	16.7	CR
Diego Rodriguez image	2002/04/09.989	16.7	CR
Fred Ewalt	2002/04/11.055	16.6	C	color version
Rafael Ferrando image	2002/04/13.840	16.37	CR
Esteban Reina Lorenz image	2002/04/13.889	16.25	CR
Josch Hambsch image	2002/04/13.903	16.6	C
Arnaud Leroy image	2002/04/13.969	16.5	CR
Pedro Re' image	2002/04/15.890	16.29	C
Rafael Ferrando image	2002/04/15.890	16.41	CR
Rui Goncalves image	2002/04/15.958	16.1	CR
R. Poncy image	2002/04/16.871	16.6	CR
Pepe Manteca image	2002/04/17.900	16.42	CR
James R. Foster image	2002/04/18.187		LRGB
Diego Rodriguez image	2002/04/23.910	16.45	CR
Eric Barbotin image	2002/04/24.878	16.5	CR
J.B. De Vanssay image	2002/04/24.930	16.4	CR
JM Llapasset image	2002/04/30.840	16.4	CR
Albert Sanchez image	2002/04/30.871	16.47	V
Rafael Ferrando image	2002/04/30.881	16.4	CR
Kopernik image	2002/05/04.212	16.58	C
Rafael Ferrando image	2002/05/04.836	16.4	CR
Rezman Obs image	2002/05/06.837		C
Rafael Ferrando image	2002/05/11.891	16.46	CR
R. Poncy image	2002/05/12.853	16.6	CR
JM Llapasset image	2002/05/14.867	16.2	CR
JB DeVanssay image	2002/05/15.921	16.4	CR
J Nicolas image	2002/05/16.852	16.2	CR
Rafael Ferrando image	2002/05/17.839	16.42	CR
Pepe Manteca	2002/05/19	16.57	R
A. Leroy image	2002/05/20.881	16.5	CR
Rafael Ferrando image	2002/05/24.900	16.4	CR
Albert Sanchez image	2002/05/30.890	16.4	C
J Nicolas image	2002/05/31.878	16.7:	CR
Rafael Ferrando image	2002/06/02.876	16.44	CR
Rafael Ferrando image	2002/06/08.899	16.58	CR

Light curves and Spectra:
• CfA Spectrum taken 2002/04/03 showing a type II before max
• SNWeb Measurements and light curve.
• VSNET Light curve (requires JAVA).

Other VSNet data on this SN (which will be copied here until VSNET gets it archive working again):
• [vsnet-campaign-sn 397] SN 2002bx in IC 2461

  Dear SN watchers,

  The KAIT team and Tom Boles has discovered a probably rising nearby SN in the galaxy on the border of Lyn-LMi. The expected maximum for typical SN Ia is mag about 14.0.

  SN 2002bx is discovered by the KAIT team on Mar 31.2 at mag about 16.9, and confirmed on the next night (mag 16.8). Tom independently discovered it on Apr. 1.943, when he estimated the magnitude as 16.2. The position of the new object (the KAIT measurement) is: R.A. = 9h19m54s.98, Decl. = +37o12'08".3 (2000.0), which is about 37" west and 40" north of the nucleus of the edge-on spiral (Sbc) galaxy IC 2461. The SN is almost superimposed on, but slightly (2-3") south of, the disk plane. No confusing foreground star are there. Several mag 15 stars are around the galaxy, but because of their redness, take care in choosing the comparison stars in the magnitude estimates.

  The recession velocity of IC 2461 is measured as 2260 km/s. The Galactic extinction is negligible. If it is unreddened by the interstellar matter in the host galaxy, the expected maximum for typical SN Ia is mag about 14.0. The spectroscopic classification and the followup magnitude estimates are urged.

  Sincerely Yours,
  Hitoshi Yamaoka, Kyushu Univ., Japan
  yamaoka@rc.kyushu-u.ac.jp

• [vsnet-campaign-sn 396] SN observations from IAUC 7863 (Partial)

  SN2002bx  20020311.2 <185:C  KAI
  SN2002bx  20020331.2  169:C  KAI
  SN2002bx  20020401.2  168:C  KAI
  SN2002bx  20020401.943 162C  Bol
  

  The host galaxy of SN 2002bx is IC 2461, a somewhat nearby edge-on spiral galaxy. The expected maximum for SN Ia is mag about 14.0. The information will be posted on vsnet-campaign-sn.

• [vsnet-campaign-sn 399] types of recent SNe (Partial)

  In [vsnet-campaign-sn 397]:

  The recession velocity of IC 2461 is measured as 2260 km/s. The Galactic extinction is negligible. If it is unreddened by the interstellar matter in the host galaxy, the expected maximum for typical SN Ia is mag about 14.0. The spectroscopic classification and the followup magnitude estimates are urged.

  It is normal type-II SN caught on the early phase. The continuum is quite blue, but narrow Na D lines are visible.

  The spectra of these supernovae can be seen at the CfA site: http://cfa-www.harvard.edu/supernova/RecentSN.html .