Supernova 1999gi in NGC 3184

This page is devoted to information on Supernova 1999gi in NGC 3184. 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.

sn99gi.gif Amateur Reiki Kushida found this one at Yatsugatake South Base Observatory, it her 8th supernova discovery. NGC 3184 is a fairly close Mag 10.3 galaxy, only about half as distant as the Virgo cluster. Supernova 1999gi is a dimmer type II (which very in maximum brightness), but this one could get as bright as Mag 13.2. I normally wait until I have several images of an SN before I start a page for it, but the amount of data on this SN is quickly passing the amount of data I got for 1999em

Web pages dedicated to this SN.

  • AAVSO almost immediately issued aavso-alert 267 with information on this SN and some very nice finder charts
  • AUDE has a 1999gi page in French [Translate]
  • Seiichi Yoshida has a 1999gi page
  • Odd Trondal's 1999gi 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!
    Odd Trondal 12/3.18/99<18.5CNo SN in image
    CfA image 12/9/99C
    Jose Muñoz Reales, Ramon Naves,
    Esteban Reina and Pepe Manteca image
    12/11.042/99C mirror
    Piergiorgio Ferrante image 12/11.108/99Ccomparison
    Pepe Manteca image 12/11.417/99C
    KenIchi Kadota
    Seiichi Yoshida image
    Arno van Werven image 12/12.328/99C
    LOSS image Undatedcolor (smaller verison)
    Odd Trondal 12/14.135/9914.5C
    Arno van Werven image 12/14.379/99C
    Piergiorgio Ferrante image 12/15.072/99C
    Stephen M. Brincat image 12/17.087/99C
    Josep MŞ. Bosch image 12/17/9914.3C
    Mark Migliardi image 12/19/99C
    Aaron Starkey image 12/19/9914.1C
    KenIchi Kadota
    Seiichi Yoshida image
    Kereszty Zsolt image 12/21.7604/9915.4C
    KenIchi Kadota
    Seiichi Yoshida image
    12/23/99 00:48 JST14.5C
    Arno van Werven image 12/26.317/99C
    KenIchi Kadota
    Seiichi Yoshida image
    12/30/99 00:36 JST14.5C
    K. Sárneczky, L. Kiss
    K. Sziládi image
    Aaron Starkey image 1/1/0014.0R
    Ramon Naves image 1/1.850/00C
    Rafael Ferrando image 1/2.096/0013.9C
    S. Moretti image 1/3.1/00C
    Arno van Werven image 1/3.277/00C
    AAGC Obs image 1/3.13/0014.1C
    Sylvain & Arnaud Rondi image 1/3.914/0014.4C
    Martin Mobberley image 1/4.91/00C
    Yasuo Sano image 1/5.649/0014.2C
    Johannes Walter image 1/6/00C
    Jean Marie Llapasset image 1/7.154/0014.4C
    Aaron Starkey image 1/7/0014.4C
    Aaron Starkey image 1/7/0014.6V
    Marc Serrau image 1/9.262/00C
    David Rose image 1/9.948/00C3x10min
    Odd Trondal image 1/10.142/0015.0C
    Jean Marie Llapasset image 1/12.090/0014.2C
    Jean Marie Llapasset image 1/12.922/0014.5C
    Jean Marie Llapasset image 1/16.944/0014.4C
    Aaron Starkey image 1/17.204/0014.3C
    Marko Moilanen image 1/23.007/0014.3C
    C Dupuy image 1/24.958/0014.56C
    Aaron Starkey image 1/26/0014.3C
    Anton Spenko image 1/26/00C mirror
    Rok Palcic image 1/27.887/00C
    L.Kiss, K. Sziládi,
    K. Sárneczky image
    KenIchi Kadota and
    Seiichi Yoshida images
    1/29/00 0:35 JST14.5C
    Beaver Meadow image 1/29.229/0014.76C
    Al Kelly and Arne Henden image 2/3.4/00RGBcolor (smaller verison)
    Jean Marie Llapasset image 2/4.131/0014.9C
    Fred Ewalt image 2/6.183/0014.5C
    Odd Trondal image 2/9.994/0015.1C
    Marko Moilanen image 2/10.122/0014.16Ccolor
    KenIchi Kadota and
    Seiichi Yoshida images
    2/12/00 2;34 JST14.6C
    Arno van Werven image 2/13.267/00C
    Raymond Poncy image 2/22.930/0014.5C
    KenIchi Kadota and
    Seiichi Yoshida images
    2/29/00 1:33 JST14.7C
    Arnaud & Roxane Leroy image 3/4.852/00C
    Paul Pinel image 3/4.949/00C
    Fred Ewalt image 3/6.925/0014.65Ccolor
    Odd Trondal image 3/7.9507/0015.3CR
    JM Llapasset image 3/8.933/0014.6Rc
    JM Llapasset image 3/11.860/0014.5Rc
    JM Llapasset image 3/11.876/0015.0V
    L.Kiss, K. Sziládi,
    K. Sárneczky image
    Odd Trondal image 3/21.92/0015.0
    Rafael Ferrando image 3/24.958/0014.5C
    Kopernik image 4/1.215/0014.2C
    Chris Spratt image 4/5.187/00C
    J P Teng image 4/5.786/0015.2CR
    M Serrau image 4/6.836/0015.1CR
    JM Llapasset image 4/7.878/0015.2CR
    M Serrau image 4/17.854/0015.8CR
    JM Llapasset image 4/17.948/0015.8CR
    JM Llapasset image 4/19.837/0016.1CR
    L.Kiss, K. Sziládi,
    K. Sárneczky image
    J P Teng image 4/22.699/0016.2CR
    JM Llapasset image 4/24.842/0016.1CR
    Rafael Ferrando image 4/24.885/0015.8C
    Paul Pinel image 4/29.915/0015.9CR
    JM Llapasset image 5/2.848/0016.2CR
    Odd Trondal image 5/4.9/0015.7
    JM Llapasset image 5/20.916/0016.4CR
    M Serrau image 5/21/0016.2CR
    JM Llapasset image 5/24.879/0016.4CR
    M Serrau image 6/1.893/0016.3CR
    M Serrau image 6/14.908/0016.2CR
    JM Llapasset image 6/16.889/0016.5CR

    Light curves and Spectra:

  • CfA Spectrum 12/10/99, showing an early type II.
  • 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 3805] SN 1999gi in NGC 3184
  • [vsnet-chat 2438] Host galaxy of SN1999gi
  • [vsnet-chat 2439] T&B sequence for NGC 3184
  • [vsnet-chat 2440] NGC 3184 sequence corrected

    Latest Photometry:

  • [vsnet-alert 3809] SN1999gi early photometry: apparently rising
  • [vsnet-recent 44898] SN1999gi recent (cont'd)
  • [vsnet-recent 45909] SN1999gi recent (cont'd)
  • [vsnet-recent 51165] SN1999gi recent (cont'd)
  • [vsnet-recent 52549] SN1999gi recent (cont'd)
  • [vsnet-recent 58643] SN1999gi recent (cont'd)
  • [vsnet-recent 60637] SN1999gi recent (cont'd)
    Back to Bright Supernovae.
    David Bishop
    Last modified: Wed Feb 14 09:01:45 EST 2001