[vsnet-ecl 7716] DO Cas observations by K.Nagai (17/Dec/2020)

[K.Nagai]

object         YYMMDD(UT)        mag    code
CASDO        20201217.35330    8.697cG  Nga.VSOLJ
CASDO        20201217.35405    8.647cG  Nga.VSOLJ
CASDO        20201217.35556    8.716cG  Nga.VSOLJ
CASDO        20201217.35631    8.733cG  Nga.VSOLJ
CASDO        20201217.35706    8.697cG  Nga.VSOLJ
CASDO        20201217.35950    8.689cG  Nga.VSOLJ
CASDO        20201217.36176    8.807cG  Nga.VSOLJ
CASDO        20201217.36552    8.787cG  Nga.VSOLJ
CASDO        20201217.36627    8.799cG  Nga.VSOLJ
CASDO        20201217.36703    8.826cG  Nga.VSOLJ
CASDO        20201217.36853    8.869cG  Nga.VSOLJ
CASDO        20201217.36928    8.896cG  Nga.VSOLJ
CASDO        20201217.37079    8.797cG  Nga.VSOLJ
CASDO        20201217.37247    8.837cG  Nga.VSOLJ
CASDO        20201217.37536    8.909cG  Nga.VSOLJ
CASDO        20201217.37681    8.922cG  Nga.VSOLJ
CASDO        20201217.37825    8.961cG  Nga.VSOLJ
CASDO        20201217.37970    8.897cG  Nga.VSOLJ
CASDO        20201217.38115    8.913cG  Nga.VSOLJ
CASDO        20201217.38404    8.957cG  Nga.VSOLJ
CASDO        20201217.38838    8.976cG  Nga.VSOLJ
CASDO        20201217.39561    8.971cG  Nga.VSOLJ
CASDO        20201217.39706    8.943cG  Nga.VSOLJ
CASDO        20201217.40140    8.955cG  Nga.VSOLJ
CASDO        20201217.40285    8.896cG  Nga.VSOLJ
CASDO        20201217.40429    8.922cG  Nga.VSOLJ
CASDO        20201217.40719    8.936cG  Nga.VSOLJ
CASDO        20201217.40863    8.892cG  Nga.VSOLJ
CASDO        20201217.41297    8.900cG  Nga.VSOLJ
CASDO        20201217.41731    8.937cG  Nga.VSOLJ
CASDO        20201217.42021    8.871cG  Nga.VSOLJ
CASDO        20201217.42455    8.822cG  Nga.VSOLJ
CASDO        20201217.42600    8.806cG  Nga.VSOLJ
CASDO        20201217.42744    8.872cG  Nga.VSOLJ
CASDO        20201217.43034    8.804cG  Nga.VSOLJ
CASDO        20201217.43178    8.761cG  Nga.VSOLJ
CASDO        20201217.43323    8.836cG  Nga.VSOLJ
------------------------------------------------------------
observer: K.Nagai (Kanagawa,Japan)
Instruments: CANON EOS Kiss X4, f=105mm, ISO800, 120sec exp.
photomerty software: AIP4WIN 2.4.1, aperture 30
comp. TYC4047-1475-1 6.53 B-V=0.473
check TYC3699-921-1  6.99 B-V=1.493
error 0.013(cG)
------------------------------------------------------------
cG magnitude is measured from G-channel images based on V magnitude comparison.

minI CASDO 2459200.8976 0.0012 Hel Nga.VSOLJ n=37 cG

DO Cas JD(hel)=2459200.8976 C=2459200.9064 E=36915 O-C=-0.0088 cG

min=2433926.4573+0.6846661xE (GCVS5.1 11-Mar-2020)


              - 17/Dec/2020 DO Cas (By K.Nagai) -
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   08                09                10                11   (UT)

Kazuo Nagai / PXS10547 at nifty.ne.jp (http://eclipsingbinary.web.fc2.com/ )