1237
P77
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ìćÜÖć÷õćó×ĂÜøąïïéćüÙĎŠ
ǰ AT Aquarii
Physical Structure of Binary System AT Aquarii
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ö
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2
ǰĒúąÖùþãćǰǰïč
âßö
2
Piyachat Kabthum
1*
, Wiraporn Maithong
2
and Kritsada Boonchom
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ïìÙĆ
é÷Š
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øąïïéćüÙĎŠ
ǰAT Aquarii đðŨ
îøąïïéćüÙĎŠ
ĒïïĒêąÖĆ
îǰöĊ
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îðøąöćèǰ0.30409572 üĆ
îǰǰǰǰǰǰǰǰǰ
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ÝĆ
÷îĊĚ
ìĞ
ćÖćøýċ
ÖþćÿöïĆ
êĉ
ìćÜÖć÷õćó×ĂÜøąïïéćüÙĎŠ
ǰ AT Aquariiǰēé÷ìĞ
ćÖćøÿĆ
ÜđÖêÖćøèŤ
Ĕîߊ
üÜÙüćö÷ćüÙúČę
îǰǰǰ
ÿĊ
îĚĞ
ćđÜĉ
îǰ B), ÿĊ
đĀúČ
ĂÜ V)ǰĒúąÿĊ
ĒéÜ R)ǰĒúš
üîĞ
ćך
ĂöĎ
úìĊę
ĕéš
öćÿøš
ćÜÖøćôĒÿÜ ÝćÖÖćøüĉ
đÙøćąĀŤ
ÖøćôĒÿÜēé÷Ĕßš
ēðøĒÖøö ǰWillson-Devinneyǰ đ óČ
ę
ĂÙĞ
ćîüèĀćÙŠ
ćóćø ćöĉ
đ êĂøŤ
×ĂÜ øąïïéć üÙĎ
Š
éĆ
ÜÖúŠ
ćü ǰ ñúÖćøÙĞ
ćîüè
ĒïïÝĞ
ćúĂÜøąïïéćüÙĎ
Š
ĒïïĒêąÖĆ
îöĊ
ÙŠ
ćĂĆ
êøćÿŠ
üîöüúǰ q) 0.91508 ± 0.02589ǰǰǰÙŠ
ćöč
öđĂĊ
÷Üǰ i)= 76.14º±
0.35 ĒúąÙŠ
ćǰdegree of contact 48.09ǰđðĂøŤ
đàĘ
îêŤ
ǰ
ÙĞ
ćÿĞ
ćÙĆ
â
: øąïïéćüÙĎŠ
ÿöïĆ
êĉ
ìćÜÖć÷õćóǰAT Aquarii
Abstract
AT Aquarii is a contact binary star system with period is 0.30409572 day. In this work, the
physical properties of the binary star AT Aquarii were calculated in blue (B) visual (V) and red (R)
lightcurve. The Wilson-Devinney program was used to compute a set of the system’s parameters. The
results show that the AT Aquarii is a contact binary system with the mass ratio (q) is 0.91508±0.2589,
the inclination (i) is 76.14º and the degree of contact is 48.09ǰpercent.
Keyword
s: Binary Star, Physical Properties, AT Aquarii
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*
Corresponding author: E-mail-address
