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APASS errors

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mrv
mrv's picture
APASS errors

I've been updating my photometry spreadsheets with magnitudes from the latest APASS data release.  I notice that the errors for all magnitudes have increased substantially even though there are more nights of photometry.  Errors in the B band in some cases exceed 0.2 magnitudes (for mag 11-12 stars)!  Why is this?

Bob

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