[vsnet-chat 789] RE: [vsnet-obs 10644] CCD observations by Kis

[Seiichiro Kiyota <skiyota@abr.affrc.go.jp>]

Dr. Kato already posted about theoretical aspect.
So, I write about my observation.

I don't know weather my observation matched to standard system well or not,
because transformation to standard system of emission objects is difficult.
But B-V and V-R around 0.5 seem to be common for early stage of slow nova.
(for example V723 Cas  cf. Light curve of V723 Cas in Vsnet web site.)

V-R is usually smaller than B-V for common stars.
H alpha emission night be dominant in Rc band photometry of novae.  


                                    Seiichiro Kiyota

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