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Words near each other
・ Iota Sculptoris
・ Iota Serpentis
・ Iota Sigma Pi
・ Iota subscript
・ Iota Tauri
・ Iota Telescopii
・ Iota Trianguli
・ Iota Trianguli Australis
・ Iota Tucanae
・ Iota Ursae Majoris
・ Iota Virginis
・ Iota Volantis
・ Iota, Louisiana
・ Iota-carrageenase
・ Iota1 Cygni
Iota1 Librae
・ Iota1 Muscae
・ Iota1 Normae
・ Iota1 Scorpii
・ Iota2 Cygni
・ Iota2 Muscae
・ Iota2 Scorpii
・ Iotabrycon praecox
・ IotaCenter
・ Iotacism
・ Iotalamic acid
・ Iotam Bagration
・ Iotapa
・ Iotapa (contemporary to Cleopatra Selene I)
・ Iotapa (daughter of Artavasdes I)


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Iota1 Librae : ウィキペディア英語版
Iota1 Librae


Iota1 Librae (ι1 Lib) is a star in the constellation Libra. Its apparent magnitude is 4.54. It is located 379 light years from earth.〔(Extended Hipparcos Compilation (XHIP) (+ Anderson, 2012) )〕
== Visibility ==
Due to its southern location, although the star can be seen from most regions of the earth, observers in the southern hemisphere are more advantaged. Near Antarctica, it appears circumpolar, while it always remains invisible only in the vicinity of the Arctic Circle. Its magnitude of 4.5 means that naked-eye visibility is dependent on a sky sufficiently free from the effects of light pollution.
The best time for observation in the evening sky falls in the months between May and September; from both hemispheres of the period of visibility remains approximately the same, thanks to the position of the star not far from the celestial equator.

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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