[vsnet-chat 4502] Re: V1548 Aql

[Didier Favre <favre.didier@free.fr>]

aah@nofs.navy.mil wrote :

> I've updated my BVRI field photometry file for Nova Aql 2001
> to reflect 3 photometric nights of data:
> http://ftp.nofs.navy.mil/pub/outgoing/aah/sequence/naql01.dat
>
> The photometry for the nova itself is:
>   HJD        V     B-V    V-R    R-I    errors
> 52051.9483 13.342  1.757  1.676  1.117  0.002  0.004  0.002  0.002
> 52052.8846 13.416  1.770  1.678  1.081  0.002  0.004  0.003  0.002
> 52061.8915 13.571  1.541  1.529  0.783  0.003  0.004  0.002  0.001
>
> note that the nova is fading, but becoming bluer.

This could explain the difference around 1 magnitude of all my
measurements.
HJD        V (st6 without filter)      errors
52056.934        12.34                  0.13
52061.927        12.45                  0.17
To my observations V1548 Aql is fading too
ST6 is sensitive in blue spectrum, and measurements seem confirm this
about V1548 Aql.

Happy nights



>
> Interesting beast.
> Arne

--
Didier Favre - Alcyone Astronomie
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