Search Data

The AAVSO International Database is a repository of variable star observations contributed by amateur and professional astronomers worldwide. Use the form below to search for observations of specific stars or by specific observers.

  • One of target, observer, or campaign must be filled.
Enter list of star names, comma separated.
Enter a date in natural language, jd, or utc format.
Enter a date in natural language, jd, or utc format.
Separate multiple observers with commas.
Campaign overrides targets and dates.