Supernova 2000ch in NGC 3432

This page is devoted to information on Supernova 2000ch in NGC 3432 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 Supernova links web page.

sn00ch_i.gif Another LOSS discovery. This one has an interesting history. 2000ch started out as a galactic variable, then after its red shift was measured became an extra galactic nova. Next, because of it's brightness (which is brighter than a Nova can get) it got reclassified subluminous type IIn supernova. Finally it appears that this may be an Eta Carini type explosion, similar to 1999bw, and 1997bs. Icon generated from LOSS discovery image.   On 2013/03/02.830 ISON-Kislovodsk observatory noticed an object, which was dubbed PSN J10524126+3640086 After some observation, it was noticed that the location of this object was identical to that of 2000ch.   It keeps comming back to life Masakatsu Aoki found it yet again, this time calling it TCP J10524126+3640086. Once again. This time Itagaki found it as TCP J10524126+3640089.

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!
Y. Sano image 2000/04/26.5CNot Detected
Y. Sano image 2000/04/26.75CNot Detected
Y. Sano image 2000/04/29.55CNot Detected
LOSS image 2000/05/03.217.4CDiscovery mirror
LOSS image 2000/05/04.218.2CConfirmation
Y. Sano image 2000/05/04.5CNot Detected
ISON-Kislovodsk observatory 2013/03/02.830C2013 outburst discovery
Giancarlo Cortini 2013/03/03.14118.5C
William Wiethoff 2013/03/03.189C
L. Elenin and I. Molotov 2013/03/03.278C
Joseph Brimacombe 2013/03/03.42318.4R
Manfred Mrotzek 2013/03/05.97C
Andy Cason 2013/03/08.133C
Thomas Langhans 2013/04/02.24818.4CR
Andy Cason 2013/04/14.174> 21.0
Masakatsu Aoki 2014/04/23.63417.8TCP J10524126+3640086
William Wiethoff 2014/04/26.138C
Giancarlo Cortini 2017/01/03.88018.5C
K. Itagaki 2017/01/19.677518.2UTCP J10524126+3640089
Manfred Mrotzek 2017/01/28.080C
Lars Hermansson 2017/02/18.05219.0V
Giancarlo Cortini 2017/02/21.870C

Light curves and Spectra:

  • IPAC spectrum Comparing 2000ch to PSN J10524126+3640086
  • VSNET Light curve (requires JAVA).

  • If you have observations of this Supernova, please send them to Use this VSNet data query to see what information has been reported so far. Other VSNet data on this SN:
  • [vsnet-chat 2901] NGC 3432 galaxy information
  • [vsnet-chat 2908] about variable star in field of NGC 3432
  • [vsnet-chat 2944] [FWD] about SN? 2000ch (W. Li)
  • [vsnet-chat 2941] Y. Sano prediscovery images

    Latest Photometry:

  • [vsnet-chat 3039] SN 2000ch photometry summary (data update)
    Back to Bright Supernovae.
    Back to Bright Supernovae - 2000
    David Bishop
    Last modified: Mon Aug 28 16:21:04 EDT 2000