[vsnet-ecl 7909] IR Lib observations by K.Nagai (25/Jan/2021)

[K.Nagai]

object         YYMMDD(UT)        mag    code
LIBIR        20210125.81132    8.629V  Nga.VSOLJ
LIBIR        20210125.81381    8.643V  Nga.VSOLJ
LIBIR        20210125.81851    8.638V  Nga.VSOLJ
LIBIR        20210125.82098    8.681V  Nga.VSOLJ
LIBIR        20210125.82345    8.682V  Nga.VSOLJ
LIBIR        20210125.82815    8.700V  Nga.VSOLJ
LIBIR        20210125.83061    8.706V  Nga.VSOLJ
LIBIR        20210125.83309    8.721V  Nga.VSOLJ
LIBIR        20210125.81185    7.869Ic  Nga.VSOLJ
LIBIR        20210125.81433    7.872Ic  Nga.VSOLJ
LIBIR        20210125.81903    7.902Ic  Nga.VSOLJ
LIBIR        20210125.82149    7.887Ic  Nga.VSOLJ
LIBIR        20210125.82397    7.923Ic  Nga.VSOLJ
LIBIR        20210125.82867    7.963Ic  Nga.VSOLJ
LIBIR        20210125.83113    7.944Ic  Nga.VSOLJ
LIBIR        20210125.83361    7.971Ic  Nga.VSOLJ
LIBIR        20210125.81037    8.256Ha  Nga.VSOLJ
LIBIR        20210125.81285    8.264Ha  Nga.VSOLJ
LIBIR        20210125.81534    8.282Ha  Nga.VSOLJ
LIBIR        20210125.82002    8.268Ha  Nga.VSOLJ
LIBIR        20210125.82250    8.319Ha  Nga.VSOLJ
LIBIR        20210125.82498    8.288Ha  Nga.VSOLJ
LIBIR        20210125.82966    8.346Ha  Nga.VSOLJ
LIBIR        20210125.83214    8.330Ha  Nga.VSOLJ
LIBIR        20210125.83461    8.344Ha  Nga.VSOLJ
---------------------------------------------------------------------
observer: K.Nagai (Kanagawa,Japan)
Instruments: 15L(F4) ATIK-490EX(ICX814), -10deg, Halpha 8x8 120, V 2x2 30, Ic 3x3 45sec
comp. star TYC2-6775.636.1 9.21V 8.62R 8.02I
check star TYC2-6775.221.1
AIP4Win v.2.4.1, Aperture V 10radius, Ic 8radius, Halpha 6radius
error 0.016(V) 0.049(Ha) 0.013(Ic)
---------------------------------------------------------------------
Ha magnitude is measured from H alpha filter images.
It was cloudy.


              - 25/Jan/2021 IR Lib (By K.Nagai) -
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   19                          20                          21 (UT)

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