constants.py

# Sun
mass_sun = 1.989e30
pos_sun = (0.0, 0.0)
vel_sun = (0.0, 0.0)

# Mercury
mass_mercury = 3.3011e23
pos_mercury = (5.791e10, 0.0)
vel_mercury = (0.0, 47362.0)

# Venus
mass_venus = 4.867e24
pos_venus = (1.082e11, 0.0)
vel_venus = (0.0, 35020.0)

# Earth
mass_earth = 5.972e24
pos_earth = (1.496e11, 0.0)
vel_earth = (0.0, 29780.0)

# Moon
mass_moon = 7.34767309e22
pos_moon = (1.496e11 + 3.844e8, 0.0)
vel_moon = (0.0, 29780.0 + 1022.0)

# Mars
mass_mars = 6.4171e23
pos_mars = (2.279e11, 0.0)
vel_mars = (0.0, 24077.0)

# Jupiter
mass_jupiter = 1.898e27
pos_jupiter = (7.785e11, 0.0)
vel_jupiter = (0.0, 13070.0)

# Saturn
mass_saturn = 5.683e26
pos_saturn = (1.433e12, 0.0)
vel_saturn = (0.0, 9690.0)

# Uranus
mass_uranus = 8.681e25
pos_uranus = (2.872e12, 0.0)
vel_uranus = (0.0, 6835.0)

# Neptune
mass_neptune = 1.024e26
pos_neptune = (4.495e12, 0.0)
vel_neptune = (0.0, 5477.0)

# Pluto (classified as a dwarf planet)
mass_pluto = 1.309e22
pos_pluto = (5.906e12, 0.0)
vel_pluto = (0.0, 4748.0)