volcanic domes
Taken by Raffaello Lena on April 24, 2015 @
Rome Italy
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Date Taken: 2015:04:26 22:41:51
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Details:
The volcanic domes Arago alpha and beta imaged closed to terminator and showing their shape and prominence in the surface. The image displays also smaller lower domes termed A3-A6 of volcanic origin (reference
http://aragodomes.blogspot.it/)
As the image displays to the north of Arago lie two known lunar domes Arago α (termed A2) and Arago β (termed A3). These two large domes A2 and A3 belong to class D and formed during several stages of effusion, representing non-monogetic domes. The other smaller domes in Arago and Carrel show lower flank slopes (between 0.5°-0.9°). According to their rheologic properties, these low domes (A1, A4-A7) belong to class A implying low lava viscosities of about 10^3 Pa s, high effusion rates and very short durations of the effusion process. But this wide lunar region shows also the Lamont structure and Plinius with its rilles system to the border between Mare Tranquillitatis and Serenitatis.
Image made with a Mak Cassegrain 18 cm telescope from the big city Rome.
Photographer's website:
http://glrgroup2.blogspot.it/
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