[vsnet-ecl 3749] [vsnet-chat 7512] A New Algol-type Variable Star VSXJ022427.8-104035

[K.Nagai]

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> Date: Sun, 27 Dec 2009 15:54:05 +0200
> Subject: [vsnet-chat 7512] A New Algol-type Variable Star VSXJ022427.8-104035
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> A New Algol-type Variable Star,
>  Discovered Using Remotely Controlled Telescope
> 
> Natalia Virnina 1,2
> 
> 1)	Odessa National University, Odessa, Ukraine, virnina at gmail.com
> 2)	Odessa National Maritime University, Odessa, Ukraine
> 
> Abstract.   Variability of the star USNO-B1.0 0793-0023471=VSX
J022427.8-104035 (R.A.(2000)=02h24m27.853s, Dec(2000)=-10d40m35.2s) had been
discovered using the remotely controlled 206-mm astrophysical refractor of
Tzec Maun Observatory (USA), which had been equipped with an SBIG monochrome
camera (STL-11000) plus a photometric filter wheel. Further observations
were obtained on 180-mm unfiltered refractor of the same observatory.
>     The time series light curve shows narrow eclipses indicating that the
object is an Algol-type binary without secondary minimum. Using the
trigonometric polynomial fit of the statistically optimal order s (Andronov,
1994, http://il-a.pochta.ru/OAP7_49.pdf ), the value s=9 was determined, the
initial epoch is T0=HJD 2455106.3231ア0.0005, period P=0.522734ア0.000015. The
smoothed brightness at the minimum is mmin=16.079ア0.008 (Rc) and at the
maximum mmax=15.417ア0.011 (Rc).
> 
> The full version of the article was submitted to the "Journal of the
AAVSO". The original time series were published at the AAVSO site
> http://aavso.org/vsx/docs/239151/1027/var_photometry.txt
>