Sites

Catalog of Galactic Supernova Remnants (Popularity: )
http://www.mrao.cam.ac.uk/surveys/snrs/
Includes documentation, abbreviations, and downloads. Written by Dave Green.

AstroArts Novae and Supernovae (Popularity: )
http://www.astroarts.com/
Observable Novae, and Supernovae. Plus a database of all current novae, and supernovae. Includes finding charts for bright objects.

SAI Supernova Catalog (Popularity: )
http://www.sai.msu.su/cgi-bin/wdb-p95/sn/sncat/form
Sternberg Astronomical Institute - Moscow, Russia.

Supernova Remnants (SNRs) Directory (Popularity: )
http://cats.sao.ru/~satr/SNR/snr_map.html
An index to SNR database including radio maps, optical and X-ray images.

MOST Supernova Remnant Catalogue (Popularity: )
http://www.physics.usyd.edu.au/astrop/wg96cat/
SNR catalogs and images from the University of Sydney.