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Suggested Stars for PEP Observers

The AAVSO Photoelectric Photometry (PEP) Program is a specific list of stars with small amplitude light changes, usually less than one magnitude. These are bright stars observable with a 6 or 8 inch telescope and photoelectric photometer.

The charts include the variable and a specific comparison and check star. There is a well defined, specific set of procedures and processes to obtaining PEP data for submission to the database. Everything is standardized, including the observation sequence.

The AAVSO Photoelectric Photometry (PEP) Program

Welcome to the website of the AAVSO Photoelectric Photometry (PEP) Program!

AAVSO 49 Bay State Rd. Cambridge, MA 02138 617-354-0484