Image of the day 12/21/2016

Lunar tremors

Contains: Earth's Moon

Technical card

Imaging telescope or lens: Celestron C14 EDGE HD

Imaging camera: ZWO ASI 224

Mount: CGE Pro

Software: FitsworkAS!2Photofiltre - Irfan

Filter: Baader Planetariun IR Pass 685

Accessory: Tele Vue Powermate 2x

Resolution: 1100x812

Locations: Observatório Parsec, Canoas, Rio Grande do Sul, Brazil

Description

Although it is little more than a great piece of rock with very little geological activity, the Moon also has its shakes. These earthquake-like movements are divided into four categories, the first three (deep tremors, vibrations from meteorite impacts and thermal movements caused by the Sun's heat) relatively harmless.
Already the fourth variant ("shallow" tremors) can be quite unpleasant, reaching 5.5 degrees on the Richter scale and lasting for incredibly long 10 minutes. According to NASA, another effect of them is to make the Moon "sound like a bell". And the scariest thing is that we have no idea of ​​the motive behind the earthquakes, since the satellite does not have active tectonic plates.
Some researchers believe that occurrences may be related to tidal activities on Earth, which are caused by lunar attraction. However, this theory is inconclusive, as maritime forces affect the Moon as a whole, but tremors occur in specific places.
Source: Megacurioso

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Astroavani - Ava...
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Lunar tremors,  Astroavani - Avani Soares