[Aavso-photometry] Comparing charts to field photometry

George Silvis George at GASilvis.net
Sun Mar 2 09:00:52 EST 2008


I'm just getting started with CCDV photometry. I'm finding many 
discrepancies between charts and field photometry table star labels. 
Or I'm doing it wrong!

For example, take V Gem
   chart 0717+13(e),  Field Photometry 080301
- There are 19 labeled stars on the chart, 18 in the photometry 
("94") is missing
- 7 differences in the labels
                      photometry vs chart label
000-BBM-965      119            120
000-BBN-001      115             116
000-BBM-960      102             100
000-BBM-985     113              112
000-BBM-994     130              132
000-BBN-007     136             138
000-BBM-993     132             134

What is the procedure? To whom would this be reported?

When documenting an observation, which labelling should be used, or 
should I report the AUID?

Thanks
George
SGEO



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