[vsnet-ecl 7907] NS Mon observations by K.Nagai (31/Jan/2021)

[K.Nagai]

object         YYMMDD(UT)        mag    code
MONNS        20210131.37352    10.657B  Nga.VSOLJ
MONNS        20210131.37987    10.666B  Nga.VSOLJ
MONNS        20210131.38304    10.699B  Nga.VSOLJ
MONNS        20210131.38623    10.716B  Nga.VSOLJ
MONNS        20210131.38940    10.725B  Nga.VSOLJ
MONNS        20210131.39258    10.744B  Nga.VSOLJ
MONNS        20210131.39894    10.756B  Nga.VSOLJ
MONNS        20210131.40528    10.778B  Nga.VSOLJ
MONNS        20210131.40846    10.795B  Nga.VSOLJ
MONNS        20210131.41799    10.811B  Nga.VSOLJ
MONNS        20210131.42116    10.833B  Nga.VSOLJ
MONNS        20210131.43069    10.876B  Nga.VSOLJ
MONNS        20210131.43387    10.869B  Nga.VSOLJ
MONNS        20210131.43705    10.890B  Nga.VSOLJ
MONNS        20210131.44339    10.891B  Nga.VSOLJ
MONNS        20210131.45927    10.914B  Nga.VSOLJ
MONNS        20210131.47515    10.858B  Nga.VSOLJ
MONNS        20210131.48150    10.889B  Nga.VSOLJ
MONNS        20210131.48468    10.843B  Nga.VSOLJ
MONNS        20210131.48786    10.839B  Nga.VSOLJ
MONNS        20210131.49103    10.815B  Nga.VSOLJ
---------------------------------------------------------------------
observer: K.Nagai (Kanagawa,Japan)
Instruments: 15L(F2) ST-402(KAF-402ME) , 0deg 2x2bin , B 120sec
comp. star TYC2-733.1528.1 9.73B
check star TYC2-733.1974.1
AIP4Win v.2.4.1, Aperture 5radius
error 0.027
------------------------------------------------------------
I could not measure V band well due to light pollution.
And I couldn't measure the I band in contaminants.
The orbital period of this binary star is 1.78 days.

minII MONNS 2459245.9586 0.0002 Hel Nga.VSOLJ n=21 B

NS Mon JD(hel)=2459245.9586 C=2459246.0586 E=18774.5 O-C=-0.1000 B

min=2441599.600+0.9399163xE (GCVS5.1 11-Mar-2020)


              - 31/Jan/2021 NS Mon (By K.Nagai) -
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   08            09            10            11            12 (UT)

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