[vsnet-chat 2331] Re: GSC1.2 magnitudes near V844 Her

[aah@nofs.navy.mil]

Not to keep harping on sequences, but Hazel McGee
mentioned the AAVSO preliminary chart magnitudes.
I quote from Bruce Sumner's sequence notes for V844 Her
but after correcting star 2's magnitude:

"There is a Preliminary AAVSO 'e' chart dated 06/1997, with six PEP(V)
magnitudes included. These magnitudes are from S. Antipin (IBVS 4360). 
Five of the magnitudes are common to both sequences:

                         ID   Henden  AAVSO  Antipin

                         2    12.310   13.1   13.14
                         3    12.517   13.8   13.86
                         4    12.834   14.1   14.10
                         7    14.083   14.9   14.92
                         8    14.995   16.2   16.15

Antipin's (and hence the AAVSO) magnitudes are 1 magnitude or more 
fainter than those derived here. This results from Antipin's magnitudes 
being misinterpreted as V magnitudes, when it fact they are photographic 
magnitudes derived from photographic plates taken in Crimea and now in 
the Moscow plate collection. In actual fact Antipin's magnitudes are 
closely related to B magnitudes."

Arne

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