Théia (planet)
|----- align=center ! bgcolor=" #ffc0c0" colspan=" 2" | Physical characteristics |----- | equatorial Diameter | 6500 km |----- | Volume | X km ³ |----- | Mass | there kg |}
In Astronomy, Théia (sometimes called Orphée) is a hypothetical Planet which would have been implied in the Création of the the Moon by a collision with the Ground. The name Théia is derived from the Greek Mythologie. Théia was a Titanide which gave rise to Séléné, goddess of the the Moon and sister of Hélios (Sun) and of Éos (Dawn).
Assumption
According to a dominant theory, there is 4,533 billion years - that is to say approximately 34 million years after the formation of the Earth - this Planétésimal of the size of Mars (6500 km diameter) would have run up against the Earth against 40000 km/h in an angle Oblique, destroying the Impacteur and ejecting this last as well as a great portion of the terrestrial coat in the space. Data-processing simulations of such an event suggested that approximately 2% of the original mass of the impactor would have produced a remains ring in Orbite. By Accretion, between one and 100 years after the impact, half of these remains would have given rise to the the Moon.
Geological obviousnesses
August 1st
References
External bonds
-
Astronomy: formation of the Moon
- the Moon - Its origins
- '' Origin off the Moon - computer model off accretion ''