Supernova 1999ee and 1999ex in IC 5179

This page is devoted to information on supernova 1999ee and 1999ex in IC 5179 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.

M. Wischnjewsky was observing a photo of IC 5179 (this galaxy in -36 declination) when she noticed 1999ee on Oct 7th. Maximum brightness was expected to be around mag 15.0, on or around Oct. 11th. Perth Astronomical Research Group was observing this SN, when they noticed 1999ex in the same galaxy. This one is a type Ic, and on the rise. Two SN in the same galaxy at the same time is a VERY rare event, the last time this happened was 1996bw and 1997W in NGC 664, just two years ago, and this galaxy is much closer.

Web pages dedicated to these SN.

  • AUDE has a 1999ee page in French [Translate]
  • AUDE has a 1999ex page in French [Translate]
  • Perth Astronomical Research Group has a 1999ex page and a 1999ee 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!
    Roland Santallo image 10/10.365/99C
    Jean Claude Pelle image 10/10.458/99C magnified
    PARG image 11/7/99C Discovery image of 1999ex
    Robin Chassagne image 11/15.731/99C
    Mario Hamuy image undatedC
    Robin Chassagne image 11/23.456/99C
    Graham Horsnell image 11/28.417/99C6 x 120 sec
    Th Payet image 12/4.711/99C15x60s

    Light curves and Spectra:

  • VSNET 1999ee Light curve (requires JAVA).
  • VSNET 1999ex Light curve (requires JAVA).
    If you have observations of these Supernovae, please send them to Use this 1999ee VSNet data query and this 1999ex VSNet data query to see what information has been reported so far. Other VSNet data on this SN:
  • [vsnet-alert 3574] SN 1999ee and others
  • [vsnet-chat 2335] Host galaxy of SN1999ee
  • [vsnet-alert 3714] SNe 1999ex and 1999ee in IC 5179

    Latest Photometry:

  • [vsnet-recent 39086] SN1999ee recent (cont'd)
  • [vsnet-recent 43063] SN1999ex recent (cont'd)
    Back to Bright Supernovae - 1999.
    Back to Bright Supernovae.
    David Bishop
    Last modified: Wed Oct 4 13:01:08 EDT 2000