Background

This planet, located somewhere in the Andromeda galaxy, orbits a M5V star about 0.682764 AU away from its star. The planet is volcanically active due to the gravitational field of the star, kind of like the deal with Io and Jupiter. The planet also has liquid water at the poles in underground pools and frozen and liquid overground pools, where the life is supposed to evolve on the planet. At the equator, there is also a valley that wraps around the entire planet, which forms from chemical weathering by acidic rain. The idea behind the acid rain is that the frequent volcanic eruptions create the sulfur, which combines with oxygen, creating sulfur dioxide, this then rises up into the upper atmosphere, which reacts with other chemicals that then precipitate down as acid rain.

Question

One of my questions is would water be able to form underground on this planet? Considering the distance to the star and would the volcanic activity make sense, considering an M5V type star is pretty cool and might not have the right composition to form a gravitational field of such magnitude that the planet becomes volcanically active. And my final question, are the chemical processes described accurate? I'm pretty fresh to this whole "worldbuilding" thing (and chemistry, to a fair extent)

posted over 4 years ago

Covision‭

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