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HD 106515 is a binary system (and currently ''visual'' trinary system). The A and B stars are both G-class yellow dwarfs. They have separate entries in LTT. The A star is LTT 4599 (in the starbox) and the B star is LTT 4598 (G8 dwarf, mass 0.89). The two are gravitationally bound and separated at 310 AU. The binary semimajor axis is 390 AU.〔 The third star in the visual trinary, BD-06 3533, is likely not bound with LTT 4599 and LTT 4598.〔 ==Planetary system== From 1998 to 2012, the system was under observance from "the CORALIE echelle spectrograph at La Silla Observatory". In 2012, a long-period, wide-orbiting planet was deduced at LTT 4599 / HD 106515 A by radial velocity. This was published in November. The planet has been pulled to an eccentric orbit by the B star LTT 4598. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「HD 106515」の詳細全文を読む スポンサード リンク
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