The following three close-up images of the Moon were taken
by Graham Ensor through Mike Dumelow's 8-inch Dall-Kirkham reflector using a Phillips
Toucam webcam on 1st March 2004. (a): The south-east border of Mare Humorum, showing
mountainous terrain in the middle of the image. Three prominent rilles are visible in the
upper-right part of the image. These rilles are concentric to Mare Humorum, the Mare itself
lying in darkness to the top left of the image. One of the rilles intersects the lava flooded
crater Hippalus (61 km diameter) at upper right. The brightly lit terraced walls and central
peak of the crater Campanus (38 km across) is at lower right. (b): Region to the south of (a).
The crater Capuanus is in the lower right corner of the image with a brightly lit western rim.
The smaller crater Ramsden is just right of centre with its floor in deep shadow. Ramsden
appears to be superimposed on some north-south trending rilles. (c): Sinus Iridum (the Bay of Rainbows)
emerges into the sunlight. The Jura Mountains form the western ramparts of this flooded impact
basin, while wrinkle ridges deform the otherwise smooth lava plains of its floor.
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