[vsnet-chat 876] Re: Magnitudes, sequences, etc

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

>if Kiyota-san is getting results but not distributing them

Kiyota have been done nothing yet.

Several times, I measured Johnson V sequence around novae using my CCD and filter set obtained 
from Optec Inc. and reported here for visual observers. I think that these sequences might be 
useful until more precise photometry would be provided. 

I am interesting calibration of sequences around variables as Dr. Skiff provide us.
But I think that precise photometry using CCD is difficult for me.
One reason is that my CCD has very low sensitivity in B band and difficult to calibrate using 
B-V color term. And there are not many standard star measured V-Rc.
(In addition I can not observe northern half of sky from my "Balcony" observatory.)

I hope many other amateur CCD observers will be interested in standard Johnson system 
photomtry.

                                     Seiichiro Kiyota


PS. I will be absent for one week as holiday

Seiichiro Kiyota
CBA, Tsukuba
http://vsnet.age.or.jp/x/meineko/index-e.html

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