After a question asked by @Morgana_Tsukiyo, my team decided to implement a “planet’s surface” simulation to our Celestial Simulation (CS).
Predicting Surface changes is not a simple task, so please bear in mind that this simulator is not supposed to do this kind of work. While I trust my programming team enough for it to be coherent, it’s not the main goal of it and therefore, errors can occur.
Before anything, let’s define the simulation’s context:
An system with a single, average yellow main sequence star; 8 planets (barren; [storm; temperate; barren]; gas; gas; plasma; gas); A standard mass Energy Ratio of 0,5; no external forces relevant near the system.
[ ] marking the habitable zone.
First, let us see the difference between a drop in the star’ surface temperature and a drop in luminosity alone. While both can seem similar, the second one can let most radiations pass unaltered. I must add that both can happen without the mass, density or size of the star being altered.
We are focusing on the 3rd planet, being the only temperate of the system, it’s the one of most relevance for the case of Vale. In theory, there should be a difference of a few degree between the two.
Here below are the condensed graphs of the average surface temperature on a 3 years basis.
The first scenario, a drop in the star’ surface temperature, produces a drop of 1.6°C per month on average while the second, in luminosity, see a drop of 1.3°C per month on average. Of course, locally, the effects may take a few more weeks to settle, but in the end, the world’s biomes will be destroyed. The only “relief” I find is that it will take months before the current installations won’t be enough to protect the population.
- drop in surface temperature
- drop in luminosity
A storm planet is actually “safer” :
Because of the dense atmosphere, the temperature take a lot longer to drop (0.6°C /month)
note that on around 8% of the simulations, the storm planet became a plasma one. It’s probably a question of the planet being in a powerful stream of radiation, “igniting” the plasma reaction.
Finally, note that the further away we are from the sun, the less important the change in T°C is important. It’s of course because the sun, even in it’s normal state, already have low impact on the planets’ climate.