• astrophysical objects
• astrophysical processes
• astronomical instrumentation.

Each of the above is a link; please click to see the whole table.

The VOEvent community would like your input on these lists, to see if they are sufficient. Here is how you can help.

• Think of an astrophysical process or object that you wish to use in the "Why" (hypothesis) section of a VOEvent
• Look through the accompanying tables for a description of that event within the controlled vocabulary.
• Ask yourself if the description is "as good as you can expect in 50 characters", or if there is an essential semantic missing.
• Report back to the group (voevent at ivoa dot net)