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Meaning of "Sky" value

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roe
roe's picture
Meaning of "Sky" value

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]

HQA
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sky value

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

Arne

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