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Epsilon Reticuli
Epsilon Reticuli (Epsilon Ret, ε Reticuli, ε Ret) is a double star approximately 59 light-years away in the constellation of Reticulum. The primary component is an orange subgiant, while the secondary is a white dwarf. The two stars share a common motion through space and hence most likely form a binary star system.〔 The brighter star should be easily visible without optical aid under dark skies in the southern hemisphere. In 2000, an extrasolar planet was confirmed to be orbiting the primary star in the system.
== Star system ==
The primary component is a subgiant star with a stellar classification of K2 IV.〔 The fusing of hydrogen in its core is coming to an end and it is in the process of expanding as a red giant. (The NStars project gave it a classification of K2 III, which would make it a giant star.)〔
The secondary component is a white dwarf star located at a separation of at least 240 AU from the primary.〔 It has a surface temperature between 9000 and 17000 K.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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