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Words near each other
・ Helcystogramma melissia
・ Helcystogramma microsema
・ Helcystogramma musicopa
・ Helcystogramma nesidias
・ Helcystogramma neurograpta
・ Helcystogramma obscuratum
・ Helcystogramma octophora
・ Helcystogramma pantheropa
・ Helauchha
・ Helbah
・ Helbeck
・ Helbeck of Bannisdale
・ Helbedündorf
・ Helber Rangel
・ Helberg
Helberg (crater)
・ Helbig
・ Helbing
・ Helbirga of Austria
・ Helblindi
・ Helblinghaus
・ Helbo
・ Helbra
・ Helbé
・ Helcanthica spermotoca
・ Helcio Milito
・ Helcion
・ Helcion concolor
・ Helcion dunkeri
・ Helcion pectunculus


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

Helberg is a lunar crater that is located just behind the western limb of the Moon, on the far side from the Earth. Due to libration this part of the surface is sometimes brought into view, and the crater is visible under suitable lighting conditions. However even under these circumstances the crater is viewed from the edge and not much detail can be seen.
This crater is nearly attached to the east-northeastern rim of the crater Robertson. Within a crater diameter to the northwest lies Berkner, and farther to the east is Bell.
This is an eroded crater formation which overlies Helberg C along the east-northeastern side and Helberg H to the southeast. The southern rim is somewhat uneven, with an area of intrusion to the southwest. The interior floor has the remains of a crater rim at the northern end. It is otherwise relatively featureless.
==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 Helberg.

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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