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・ Omiodes fuscipennis
・ Omiodes giffardi
・ Omiodes grandis
・ Omiodes granulata
・ Omiodes hallwachsae
・ Omiodes humeralis
・ Omiodes hypoxantha
・ Omicron Islands
・ Omicron Leonis
・ Omicron Lupi
・ Omicron Ophiuchi
・ Omicron Pegasi
・ Omicron Persei
・ Omicron Piscium
・ Omicron Puppis
Omicron Sagittarii
・ Omicron Scorpii
・ Omicron Serpentis
・ Omicron Tauri
・ Omicron Ursae Majoris
・ Omicron Velorum
・ Omicron Virginis
・ Omicron1 Cancri
・ Omicron1 Canis Majoris
・ Omicron1 Centauri
・ Omicron1 Eridani
・ Omicron1 Orionis
・ Omicron2 Cancri
・ Omicron2 Canis Majoris
・ Omicron2 Centauri


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Omicron Sagittarii : ウィキペディア英語版
Omicron Sagittarii


Omicron Sagittarii (Omicron Sgr, ο Sagittarii, ο Sgr) is a binary star in the constellation Sagittarius. ο Sagittarii is located 142 light years from Earth〔 and is a spectral type K0 orange giant with an apparent magnitude of +3.77. It has a faint, 13th magnitude companion, ο Sagittarii B, 36 arc seconds away.
Because it is close to the ecliptic, ο Sagittarii can be occulted by the Moon and very rarely by planets. The last occultation of ο Sagittarii by a planet took place on 24 December 1937, when it was occulted by Mercury.
==Name and etymology==

*This star sometimes called by the name Manubrium of Manubrij, from Latin manus ‘hand’, the star does appear to mark the Archer's right ear.〔(MANUBRIUM )〕
*In Chinese, (), meaning ''Establishment'', refers to an asterism consisting of ο Sagittarii ξ² Sagittarii, π Sagittarii, 43 Sagittarii, ρ¹ Sagittarii and υ Sagittarii. Consequently, ο Sagittarii itself is known as (, (英語:the Second Star of Establishment).)〔 (AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 11 日 )〕

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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