Mare_Cognitum.jpg(350 × 382 siōng-sò͘ , tóng-àn chiàm-liōng: 17 KB, MIME luī-hêng: image/jpeg

Soat-bêng
English: en:Mare Cognitum is located in a basin or large crater which

sits in the sencond ring of the Procellarum basin. The mare formations are of the Upper Imbrian epoch, while the surrounding basin material is of the Lower Imbrian epoch. You can clearly make out the mountain range Montes Riphaeus to the northwest of the mare. These mountains are a part of the rim crest of the buried crater or basin, containing the mare.

Also, notice the lighter grey area to the upper right of the

photo. This is Fra Mauro; the landing site of Apollo 14.
Chhut-chhù http://lunar.arc.nasa.gov/science/atlas/mare/mcognitum.htm
Chok-chiá
Public domain 本作品由NASA創作,屬於公有領域。根據NASA的版權政策:“NASA的創作除非另有聲明否則不受版權保護。”(參見:Template:PD-USGov/zhNASA版權政策JPL圖像使用政策
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