The credit field contains the id to one of the following organizations who provided the observation through the sharing of their database.
- AAVSO - American Association of Variable Star Observers
- BAAVSS - British Astronomical Association Variable Star Section
- RASNZ - Royal Astronomical Society of New Zealand
- AFOEV - Association Française des Observateurs d'Étoiles Variables
Please note that this field was added in Nov 2014 so observations placed in the database before this time might not have had this field updated (they defaulted to AAVSO).