The Bright supernova
web page has been around for more than 26 years now in one form or another.
The purpose of this page is to present the most up to date supernova information available.
There are 2 entry points, a
framed version and an
There is also a special
cell phone version and a
machine readable version.
These pages are updated just about every day.
I also update the brightness of the brighter objects on a daily basis.
For people with slow internet, you can turn off all of the images with this
How to use these pages:
In the upper right corner of the
you will find a list of the brightest supernovae sorted by brightness.
This list has the name of the supernova (which is a link) followed by the
magnitude, type, and host name.
This list is automatically updated every time I update the page.
If you click on first link (Name),
you will go to the full entry; this will give you
the location of the supernova, and any history of this object.
The second link (Host), you will go to
WikiSky, which will give you
a map of the area with the location of the supernova in a boxed area
Note that a host name of "none" means that no host has been identified.
These are usually galactic events which are not yet classified.
There are 2 types of entries, long and short. The long entries follow this format:
Name of SN, Discovery reference (link if possible),
Date which the supernova first appeared (Year/Month/Date format),
Name of discoverers separated by a ";" (link to discovery site(s) if possible) Name of galaxy (linked to a page describing this galaxy), RA and DEC of SN
in J2000.0 coordinates (link to sky map of that area of the sky)
Directions to the SN from core of host galaxy, galaxy name (linked
to a Photometry Reference image of that galaxy)
Magnitude of SN when LAST reported (link to the source of the last report)
: date of report
("maximum brightness:date of maximum" or "rising"
if that information is available),
Type of SN if reported. [Spectrum if possible]
(Any data which reference this SN (IAUCs; VSNET; past SNe))
Any special pages dedicated to observing this SN, or a link to
a sub page if enough data warrants it.
If possible I will create an icon for every bright supernova.
This icon will be black on a white background and mirror imaged left to right
so that North is up and East is left.
The exception being a color image, which will have he same orientation.
All icons will be less than 100x100 pixels in size so that they load quickly.
Short entries have the following format:
A header, noting the discovery group
A line giving the object name (alternate names), date first observed, location (link to WikiSky), current brightness (maximum brightness if available), Type, host (if available), images (if available) and any refereces to this object on other web pages.
Is basically a copy of the main page (sorted by magnitude)
which is meant to be machine readable.
This page is harvisted automatically be several star chart software packages.
This page is automatically regenerated every time the page is updated.
gives you a list of every supernova ever discovered. The main entries are indexed in the first column.