Supernova 2000dx in UGC 1775

This page is devoted to information on Supernova 2000dx in UGC 1775 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.

sn00dx_i.jpg This marks the first discovery of a collaboration between LOSS and amateur astronomer Mike Schwartz of Tenagra Observatories, now referred to as "LOTOSS" or the Lick Observatory and Tenagra Observatory Supernova Search. 2000dx is located just inside the "ring" of the ring galaxy UGC 1775, with maximum light was expected near 11/5/00, with a maximum brightness of around mag 17. However, it appears to have gotten as bright as mag 15.2 before leveling off. Much brighter than expected. We have a DSS Photometry reference image made by Odd Trondal. Icon created from Mike Schwartz's discovery image.

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!
Mike Schwartz image 10/30.3/0017.3CDiscovery, local mirror
LOSS image 10/31.2/0017.1CConfirmation
JM Llappaset image 11/3.887/0017.0:CR
H. Dannhoff image 11/5.927/00C
Fred Ewalt image 11/8.029/0015.3C
Fred Ewalt image 11/13.094/0015.3C
Diego Rodriguez image 11/15/0015.3C
Cedric Layrat image 11/17.898/0015.6CR
Rafael Ferrando image 11/17.906/0016:C
JM Llappaset image 11/18.869/0016.3:CR
Chris Spratt image 11/19.189/00C
P. Pinel image 11/20.931/0016.6C
Kereszty Zsolt image 11/22.832/0016.6C
Claudine Rinner image 11/24.984/0016.2CR
Rafael Ferrando image 11/25.964/0016.4C
JM Llapasset image 11/27.859/0016.3CR
Anton Spenko image 11/27.885/00C with photometry references
JM Llapasset image 12/3.8/0016.5CR
Cedric Layrat image 12/3.820/0015.4CR
Cedric Layrat image 12/16.778/0016.9CR

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.
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David Bishop
Last modified: Mon Dec 18 13:06:38 EST 2000