Supernova 1999et in NGC 1643

This page is devoted to information on Supernova 1999et in NGC 1643 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.

Supernova 1999et was a hard case. It turns out that there is a nice little mag 16 star just a little to the north of the nucleus of NGC 1643. Several of the images on this page show that as the SN. These images will have a "?" in the comments fields. The real SN was a type II, found a couple months after max, and is to the south east of the core. Many thanks to Arno van Werven who stuck with this SN when nobody else would.

Web pages dedicated to this SN.

  • AUDE has a 1999et 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!
    Arno van Werven image 11/10.252/99C mirror
    Michinari Yammamoto image 11/10.6/99Cimage only
    Robin Chassagne image 11/15.896/99C
    Arno van Werven image 11/18.326/99C mirror
    Arno van Werven image 11/26.260/99C
    Arno van Werven image 11/30.223/99C
    Arno van Werven image 12/2.264/99C
    Pedro Ré image 12/6.937/99C?
    Juan Gonçalves
    João Porto image
    Kopernik image 12/8/99CPossible
    Arno van Werven image 12/25.182/99C
    Arno van Werven image 12/26.180/99C
    Arno van Werven image 12/29.160/99C
    Arno van Werven image 1/3.144/00CSN not visible

    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-chat 2406] Host galaxy of SN1999et

    Back to Bright Supernovae - 1999.
    Back to Bright Supernovae.
    David Bishop
    Last modified: Tue Jun 27 15:53:49 EDT 2000