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・ 267 Tirza
・ 2671st Special Reconnaissance Battalion (United States)
・ 26733 Nanavisitor
・ 26734 Terryfarrell
・ 2674 Pandarus
・ 2675 Tolkien
・ 2677th Office of Strategic Services Regiment
・ 267th Aviation Regiment of School of Reserve Officers
・ 267th Chemical Company
・ 267th Combat Communications Squadron
・ 267th Indian Armoured Brigade
・ 267th Infantry Division (Wehrmacht)
・ 268
・ 268 Adorea
・ 268 BC
2685 Masursky
・ 26858 Misterrogers
・ 26879 Haines
・ 268th Indian Infantry Brigade
・ 268th Infantry Division (Wehrmacht)
・ 269
・ 269 (number)
・ 269 (West Riding) Battery Royal Artillery
・ 269 BC
・ 269 Justitia
・ 2691 Sersic
・ 2696 Magion
・ 26986 Čáslavská
・ 2699 Kalinin
・ 269th Combat Communications Squadron


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2685 Masursky : ウィキペディア英語版
2685 Masursky

The asteroid 2685 Masursky is a main-belt asteroid. It was discovered by Edward (Ted) Bowell in 1981. It was named after Harold Masursky (1923–1990), a planetary geologist at the U.S. Geological Survey, Flagstaff, who worked on numerous space missions.
Little was known about Masursky until the Cassini space probe, en route to Jupiter and Saturn, flew past it on 23 January 2000. Because Cassini passed the asteroid at a distance of 1.6 million kilometres (about four times the EarthMoon distance), the images it returned showed nothing more than a dot. Nevertheless, Cassini was able to determine Masursky's size, about 15–20 km in diameter.〔(【引用サイトリンク】title=PIA02449 info page )〕 The asteroid was between 0.81 and 1.08 arcseconds in apparent diameter.
Masursky's orbit places it within the Eunomia family of S-type asteroids. Cassini's observations had cast some doubt on its composition, but later ground-based spectroscopy has confirmed its S-type spectrum.
== 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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