Supernova 1999gb in NGC 2532

This page is devoted to information on Supernova 1999gb in NGC 2532 Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main supernova page. Information on the original web pages for many of these images can be found on the Supernova links web page.

This is another LOSS discovery. The rules of IAUC say that you have to have two observations before you can report an SN, and Weidong Lee had one, but no confirmation. So, he dropped an e-mail to isn-chat and vsnet-alert, and promptly got confirmation from Puckett observatory. It's nice when things work the way they are supposed to.

Web pages dedicated to this SN.

  • AUDE has a 1999gb page in French [Translate]

    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!
    LOSS image 11/22.4/9916.1CDiscovery
    Jean-Marie Llapasset image 11/24.160/9916.0C
    Robin Chassagne image 11/25.005/9916.2C
    Jean-Marie Llapasset image 11/25.184/9916.2C
    Ca' Bionda Obs. image 11/26.9/9916.3C
    Rafael Ferrando image 11/27/9915.5C
    Arno van Werven image 11/28.271/99C
    Jean-Marie Llapasset image 11/29.141/9916.0C
    Odd Trondal image 11/30.182/9915.5C
    Piergiorgio Ferrante images 12/3.033/9915.5C
    Rafael Ferrando 12/3.995/9916C
    Johannes Walter image 12/5.427/9915.5C
    Pedro Ré image 12/6.946/9916.1C comparison image
    Raymond Poncy image 12/7.016/99C
    Christian Buil image 12/7.042/99C
    Juan Gonçalves
    Joăo Porto image
    Nyrölä observatory image 12/8.049/99C
    Hans Dannhoff image 12/9.901/9916.2C
    Odd Trondal image 12/21.035/9915.8C
    Arno van Werven image 12/28.299/99C10x30s
    K. Sárneczky, L. Kiss
    K. Sziládi image
    Yasuo Sano image 1/4.511/0016.2C
    Odd Trondal image 1/10.049/0016.5C
    Arno van Werven image 1/18.247/00C
    Odd Trondal image 1/28.049/0016.5C
    Mike Schwartz image 2/8/00C local mirror
    Don Dillinger image 2/10/0017.5C
    Odd Trondal image 2/15.9271/0017.5C
    L.Kiss, K. Sziládi,
    K. Sárneczky image

    Light curves and Spectra:

  • 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-alert 3735] KAIT SN candidate in NGC 2532
  • [vsnet-alert 3738] SNe 1999ga and 1999gb
  • [vsnet-chat 2420] Host galaxy of SN? in NGC2532

    Latest Photometry:

  • [vsnet-recent 43160] SN1999gb recent (cont'd)
  • [vsnet-recent 44173] SN1999gb recent (cont'd)
  • [vsnet-recent 47012] SN1999gb recent (cont'd)
    Back to Bright Supernovae - 1999.
    Back to Bright Supernovae.
    David Bishop
    Last modified: Tue Jan 9 12:37:43 EST 2001