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32 lines
1.1 KiB
Python
32 lines
1.1 KiB
Python
from dataclasses import dataclass
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from rebound import Particle
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from scipy.constants import kilo, astronomical_unit
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habitable_zone_inner = 0.75
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habitable_zone_outer = 1.5
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def is_potentially_habitable(planet: Particle):
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return habitable_zone_inner <= planet.a <= habitable_zone_outer
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@dataclass
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class ReferencePlanet:
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a: float # km
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e: float
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mass: float
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@property
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def a_au(self):
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return self.a * kilo / astronomical_unit
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# from NASA HORIZONS
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# https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=%27Mercury+Barycenter%27&OBJ_DATA=%27YES%27&MAKE_EPHEM=%27YES%27&EPHEM_TYPE=ELEMENTS&CENTER=%400&START_TIME=1961-08-06&STOP_TIME=1961-08-07&STEP_SIZE=%272+days%27
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inner_solar_system_data = {
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"mercury": ReferencePlanet(mass=3.302e23, a=6.132591901350513E+07, e=2.330561345288357E-01),
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"venus": ReferencePlanet(mass=48.685e23, a=1.084671627283828E+08, e=3.297503114845414E-03),
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"earth": ReferencePlanet(mass=5.97219e24, a=1.473393857505501E+08, e=2.365126062626348E-02),
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"mars": ReferencePlanet(mass=6.4171e23, a=2.277188818140753E+08, e=9.685171612265037E-02),
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}
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