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・ Aldene Connection
・ Aldene Forbes
・ Aldeneik
・ Aldeneik Abbey
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Alder (crater)
・ Alder (disambiguation)
・ Alder (surname)
・ Alder Branch, Tennessee
・ Alder Community High School
・ Alder Creek
・ Alder Creek (Mariposa County, California)
・ Alder Creek (Siskiyou County, California)
・ Alder Creek Grove
・ Alder Dam
・ Alder Flats
・ Alder flycatcher
・ Alder Grange Community and Technology School
・ Alder Gulch
・ Alder Hey Children's Charity Handicap Hurdle


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Alder (crater) : ウィキペディア英語版
Alder (crater)

Alder is a lunar impact crater that is located in the southern hemisphere on the far side of the Moon. It is located in the South Pole-Aitken basin, and lies to the southeast of the crater Von Kármán. Southeast of Alder is Bose, and to the south-southwest lies Boyle.
The inner wall of Alder is rough and slightly terraced, with the material scattered across the edges of the otherwise relatively flat interior floor. There are several low central ridges lying along a band from the midpoint toward the eastern rim. A small crater lies on the eastern inner slopes. The crater is otherwise free of significant impacts within the rim.
Alder is associated with the only area in the basin not dominated by the pyroxene rocks typical of lunar lowlands. This ''alder ejecta'' area is on spectrographic evidence instead principally anorthosite rock, typical of the lunar highlands.
==Satellite craters==
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Alder.

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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