[vsnet-chat 5158] About courios observation, big confusion

["Toni Scarmato" <toniscarmato@hotmail.com>]

Dear all,

I Have received just today the diskettes with the GCSV and NSV catalog from
the President of AFOEVB Association.

I am verifying some observations and I found the first surprise.

The position of the variable star HYAFH=GSC 4900:329 (12.2/0.4)
reported in GCSV in Megastar program
is 09 34 0.9 -06 59 04 (LB Type) 10.0-10.5 p

Instead, the position in catalog received is
420172 |FH    Hya  |093132. -064542:|                |LB        | 10.0    |
10.5      |P |            |     |                    |     |K-M
|00351 08953|

I Have verified that the correct position seem to be the first. On my images
at second position seem visible a faint star with a magnitude fainter then
12.5.

Moreover, the measure of p magnitude of the star at first position give the
following results

HYAFH 20020211.908 11.187 p TSc (+/-0.45)
HYAFH 20020211.911 11.054 p TSc (+/-0.23)

fainter then  magMin 10.5 p of  HYAFH and brigther then 12.2 of GSC4900:329.
If need I will send the images.

On the other hand, on images, the star appear of orange coulor and
comparison with the near star
GSC 4900:477 9.8/0.4 and GSC 4900:491 10.3/0.4, the different magnitude is
well visible.

What is the truth?


Best regards,

Toni Scarmato

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