[vsnet-alert 6407] R: Suspect nova star in Lyra

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

Dear Hitoshi, dear all,


> >Located at position AR 18 52 53.557 Decl. +33 39 16.24 m1~12.509/1.01
>
>   It is defenitely the GSC-catalogued star:
>
> GSC 2642-1033 18:52:59.79 +33:37:38.1 mag=11.59
> 2MASS         18:52:59.79 +33:37:37.9 J=10.229 H=9.739 K=9.598
>
>   The USNO-A2.0 catalog does not contain this probably because of the
> plate condition of the 1st Palomar survey.
>
>   You must measure the coodinates more accurately.

Yes, I Have do an accurate measure and analisys of the field. Infact, I
think that in my previous
measure I Have misinterpreted the positions of the stars used for the
astrometry.

Those are the coordinates of the two stars pointed from the arrow in my
images.

Faint star:   18 53 00.365 +33 37 31.51 m1=12.174/0.92
Brigth star : 18 53 05.810 +33 35 43.22 m1=10.848/0.92

The first star is GSC 2642:1033 in agreement with the interpretation of
Hitoshi.

The second star is one of the following three stars visible on DSS II
generation image:

USNO A2 18 53 05.575 +33 35 55.72 m1=13.80/0.25
USNO A2 18 53 06.014 +33 35 35.45 m1=14.40/0.25
USNO A2 18 53 05.837 +33 35 16.94 m1=15.80/0.25


It is probable that the little separation produce the brigthness visible in
my image?


Many thanks for the replay and Sorry for the error.

Best Regards,

Toni Scarmato

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