Meaning of "Sky" value

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Affiliation
American Association of Variable Star Observers (AAVSO)
Wed, 10/30/2013 - 03:32

When one looks at the "View Photometry Report" in VPHOT, there is a table with a column headed "Sky."  What is that reporting?

Jim Roe [ROE]

Affiliation
American Association of Variable Star Observers (AAVSO)
sky value

The sky value in the report is the median value of each sky pixel inside of the sky annulus.

Arne