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・ 206P/Barnard–Boattini
・ 206th
・ 206th (2nd Essex) Brigade
・ 206th (Canadien-Français) Battalion, CEF
・ 206th Coastal Division (Italy)
・ 206th Combat Communications Squadron
・ 206th Division
・ 206th Field Artillery Regiment
・ 206th Independent Infantry Brigade (United Kingdom)
・ 206th Infantry Division (Wehrmacht)
・ 207
・ 207 (City of Glasgow) Battery Royal Artillery
・ 207 (number)
・ 207 AM
・ 207 BC
207 Hedda
・ 207 series
・ 207 series (JR East)
・ 2070s
・ 2071
・ 2072 Kosmodemyanskaya
・ 2078 (disambiguation)
・ 2078 (Pugad Baboy story arc)
・ 2078th Air Weather Reconnaissance Squadron
・ 207th
・ 207th (2nd East Midland) Brigade
・ 207th (Ottawa-Carleton) Battalion, CEF
・ 207th Coastal Division (Italy)
・ 207th Corps (Afghanistan)
・ 207th Division


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207 Hedda : ウィキペディア英語版
207 Hedda

207 Hedda is a sizeable Main belt asteroid. It is a C-type asteroid, meaning it is primitive in composition and dark in colour. This asteroid was discovered by Johann Palisa on October 17, 1879 in Pola and was named after Hedwig, wife of astronomer Friedrich A. T. Winnecke.
Attempts to determine the rotation period for this asteroid have led to conflicting results. A study published in 2010 using photometric observations from Organ Mesa Observatory showed a rotation period of 19.489 ± 0.002 hours and a brightness variation of 0.18 ± 0.02 in magnitude.〔
== References ==


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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