[vsnet-j 399] Re: [vsnet-alert 5487] Possible Nova in Pup: position

[Gianluca Masi <gianmasi@fr.flashnet.it>]

Dear Colleagues,

Taichi Kato wrote:
> 
>     Our first inspection of the CCD images tonight shows the object more
> closer to the following USNO star (also pointed out by Rod Stubbings).
> 
> USNO0600.03989187 073756.871 -255658.78 (2000.0) 14.2 14.1


I'm not able to identify this star on USNO A2.0 (no entry like this around the suspetc
position). As I said earlier, a good USNO A2.0 progenitor candidate (if this actually is a
nova) is A0600.06937901; is, the entry above, related to a different USNO catalogue (A1.0,
SA, AC2000...)? Please note also that there is some difference in coordinates between
A0600.06937901 (which I indicate to be the probable progenitor) and USNO0600.03989187. So,
it could be interesting to know if the star reported by Dr. Kato comes from a different
USNO catalogue. Maybe these stars are the same.

Please also note that USNO A2.0 gives for the probable candidates the following mags:

Mag:  13.8 (Blue)  13.2 (Red), with B-V=0.6

Regards,
Gianluca

-- 
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* Gianluca Masi                           "Two things fill the soul   *
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