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. Jaroslaw Grzegorzek found it this time, calling it AT2019bro.

  • Outbursts of LBV in NGC 3432
  • VSNET observations
  • Cloudy nights blog 2018 eruption

    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
    Rick Johnson 2008/03/12.21018.4L
    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
    K. Itagaki 2018/02/05.874718.3UTCP J10524130+3640087
    Grzegorz Duszanowicz 2018/03/27.023C
    Giancarlo Cortini 2018/04/07.89019.0C
    Giancarlo Cortini 2019/02/22.97018.5C
    K. Itagaki 2019/02/24.50017.9CTCP J10524124+3640084
    Andrea Mantero 2019/02/24.86317.7V
    Jordi Camarasa 2019/02/24.89517.8C
    Paolo Campaner 2019/02/25.00517.6C
    Penko Jordanoff 2019/02/25.812C
    Manfred Mrotzek 2019/02/27.950C
    Paolo Campaner 2018/02/27.98118.3C
    G. Wells and D. Bamberger 2019/02/28.01018.3CV
    Robert Cazilhac 2019/02/28.021C

    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