Stellar Evolution - many transient sources can be traced directly to the various stages of stellar lifetimes. (photos courtesy of NASA)

Welcome is (the beta version) of a new time domain warehouse of astronomical transients: sources which change in location and/or brightness, sometimes calmly and regularly and other times explosively. As one of the projects of the Berkeley Transient Classification Pipeline we're hoping to organize and facilitate exploration of the time domain for the next generation of exploratory surveys.

In the International Year of Astronomy 2009, the world is celebrating the 400th anniversary of the first use of a telescope for astronomical observations by Galileo Galilei. Since then, the time domain has influenced and in many cases, driven, our understanding of the universe and our place in it. In the spirit of the celebration, invites everyone to discover the dynamic nature of the Universe. Explore our growing warehouse of light curves through easy to use searching, interactive plotting, and Google Sky maps.


SimpleTimeseries (12/20/2009)
We have released the initial documentation on our new time-series XML format. Over the next few of weeks we will be adding additional examples, style-sheets, and documentation. You can see everything at the SimpleTimeseries pages here on
Tools (4/22/2009)
Although we have been busy with the start of PTF, we have had time to expose a couple of our pipeline tools for use by the community. There is now a Tools section where you can find quick links to things such as PyMPChecker and Group-Think. And if you really want to join the crowd, you can also get the cool new Group-Think Coffee Mug.
PyMPChecker (4/17/2009)
We are pleased to announce that PyMPChecker is now in public release. PyMPChecker is a webservice that provides asteroid positions centered around query sky and time coordinates. You can even download the python client to run from the command-line and automatically download the Ds9 regions file of asteroids in your image and then display them together, all with one command.
AAS Long Beach (12/30/2008)
Several members of our group, along with collaborators from the Palomar Transients Factory project will be attending the 213th AAS Meeting in Long Beach, January 4-8, 2009. There will be a PTF specific poster session on January 7 (session 469) with posters on all aspects of the project.
Publications (12/30/2008)
Visit our new publications page to get a deeper understanding of what we are up to. We will keep you posted here as more things are added.
ADASS Conference (10/26/2008)
John and Dan will be attending the ADASS Conference at the beginning of November and presenting posters on and the Transient Classification Pipeline.