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Announcement: New Forums
We are excited to announce the launch of our new forums! You can access it forums.aavso.org. For questions, please see our blog post. The forums at aavso.org/forum have become read-only.
Announcement: New Applications
We are excited to announce the launch of our new applications! We're opening up early access to our new applications for searching, downloading, and submitting photometric observations. You can now access these applications through these links:
- • Global Data Search (new) – Search across all of AAVSO’s databases
- • Search and Download Photometric Observations – Search and export results in CSV, JSON, or XLSX
- • Submit Photometric Observations – Review your observations on a light curve with historical data
We ask for your feedback in order to help us improve these applications. Please send feedback for the applications above to feedback@aavso.org. Note: please avoid duplicating submissions across the two submit applications.
Please complete this form to download variable star data from the AAVSO International Database. The output data file format can be found here: https://www.aavso.org/format-data-file. For very large datasets or further assistance, please contact AAVSO HQ (aavso@aavso.org)
WHAT IS THE AUID, NAME, OR DESIGNATION OF THE OBJECT?
WHAT DATE RANGE WOULD YOU LIKE TO USE?
Enter Julian date or Gregorian Date (MM/DD/YYYY)
START DATE
END DATE
HOW SHALL WE CONTACT YOU?
FIRST NAME
LAST NAME
COUNTRY
AFFILIATION
WHICH OF THESE BEST DESCRIBES YOU?
HOW DO PLAN ON USING THIS DATA?
DO YOU WANT DISCREPANT DATA INCLUDED?
Yes
No
DO YOU WANT DIFF AND STEP DATA INCLUDED?
Yes
No
IN WHAT FORMAT SHOULD THE DATA BE RETURNED?
Comma-delimited
Tab-delimited
Space-delimited
ANY ADDITIONAL COMMENT AND/OR QUESTIONS?