Gentle Lake, short forSoft Lake(LatinFor Lacus Lenitatis) YesThe front of the moonA small oneMoon Sea, betweenSteam sea、ChenghaiIt is about 80 kilometers from Jinghai.The modern name of the moon sea appeared for the first time on the moon map drawn for NASA by the US Military Surveying and Mapping Agency published in 1973. In 1976, it wasInternational Astronomical UnionApproved for adoption.Previously, it was called Manilius N, a characteristic name near Manilius crater.
In the center of Gentle LakeLunar coordinatesIt is 14.3 ° north latitude and 12.1 ° east longitude.To the northeast isHemas MountainsThe starting point of the low ridge, with severalMoon Lake: Northeast ChinaWinter Lake, NorthwestHappy LakeandSorrow Lake。In addition, there are several smaller lunar seas nearby - impact craters covered by lava.
40km west of the gentle lake is a bright young impact crater - 40km in diameterManilius crater(Manilius), surrounded by its satellite craters, of which the "Manilius X" and "Manilius W" craters located on the east bank of the gentle lake are the only named impact craters in the moon lake as of 2015.
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The Moon Lake looks like a mushroom, and its size is 70 kilometers from east to west, and 80-90 kilometers from southeast to northwest.The shore of Rouhu Lake and adjacent land areas are covered with "Impreum Sculpture" - numerous small ridges and depressions formed by sputtering materials dropped from the huge Yuhai impact basin in the northwest.
The largest part of the Moon Lake is aLavaThe small (3 km) impact crater covered is located on the west side of the dim projection line of the adjacent Manilius crater.
Accumulated from this areaImpact craterCounting the number, Rouhu Lake was about 3.5-3.7 billion years agoLate YuhaiThe period wasLavaOverwrite.Its surface is 0.8-1.1km lower than the reference height of the moon surfaceMoon LakeandSteam seaAt the same level, several meters higher than the adjacent Jinghai DistrictChenghai1.5m high.
