GJ 2126 - System
Simulates GJ 2126, a cool M-dwarf of 0.65 solar masses, and GJ 2126 b, a 1.30-Jupiter-mass companion, with an orbital period of 273 days, at 0.710 AU from its star, on an eccentric orbit (e ≈ 0.85).
Scenarios
Exoplanets
Confirmed exoplanet systems from the NASA Exoplanet Archive, built from published orbital elements. Browse from single-planet hosts to compact multi-planet systems such as TRAPPIST-1, and watch how real architectures hold together under Newtonian gravity.
GJ 229 - System
Simulates GJ 229, a cool M-dwarf of 0.51 solar masses, and GJ 229 A c, a 8.6-Earth-mass planet, with an orbital period of 122 days, at 0.384 AU from its star, on an eccentric orbit (e ≈ 0.37).
GJ 238 - System
Simulates GJ 238, a cool M-dwarf of 0.42 solar masses, and GJ 238 b, a planet with 0.6 Earth radii, with an orbital period of 1.7 days, at 0.021 AU from its star, and an equilibrium temperature near 758 K.
GJ 251 - System
Simulates GJ 251, a cool M-dwarf of 0.35 solar masses, and GJ 251 b, a 3.9-Earth-mass planet, with an orbital period of 14.2 days, at 0.081 AU from its star, and an equilibrium temperature near 336 K.
GJ 27.1 - System
Simulates GJ 27.1, a cool M-dwarf of 0.53 solar masses, and GJ 27.1 b, a 13.0-Earth-mass planet, with an orbital period of 15.8 days, at 0.101 AU from its star, on an eccentric orbit (e ≈ 0.08).
GJ 273 - System
Simulates GJ 273, Luyten's Star, a nearby red dwarf only 12 light-years away. Its planets include a world near the inner edge of the habitable zone. Radial velocities revealed the planets.
GJ 3021 - System
Simulates GJ 3021, a Sun-like G-type star of 0.90 solar masses, and GJ 3021 b, a 3.37-Jupiter-mass companion, with an orbital period of 134 days, at 0.490 AU from its star, and an equilibrium temperature near 350 K.
GJ 3082 - System
Simulates GJ 3082, an orange K-type dwarf of 0.47 solar masses, and GJ 3082 b, a 8.2-Earth-mass planet, with an orbital period of 11.9 days, at 0.079 AU from its star, on an eccentric orbit (e ≈ 0.22).
GJ 3090 - System
Simulates GJ 3090, a cool M-dwarf of 0.52 solar masses, and GJ 3090 b, a 4.5-Earth-mass planet, with an orbital period of 2.9 days, at 0.032 AU from its star, and an equilibrium temperature near 723 K, on an eccentric.
GJ 3138 - System
Simulates GJ 3138, a cool M-dwarf of 0.68 solar masses, and GJ 3138 b, a 1.8-Earth-mass planet, with an orbital period of 1.2 days, at 0.020 AU from its star, on an eccentric orbit (e ≈ 0.19).
GJ 317 - System
Simulates GJ 317, a cool M-dwarf of 0.40 solar masses, and GJ 317 b, a 1.69-Jupiter-mass companion, with an orbital period of 1.90 years, at 1.138 AU from its star, on an eccentric orbit (e ≈ 0.08).
GJ 3222 - System
Simulates GJ 3222, a Sun-like G-type star of 0.89 solar masses, and GJ 3222 b, a 11.4-Earth-mass planet, with an orbital period of 10.7 days, at 0.091 AU from its star, on an eccentric orbit (e ≈ 0.93).
GJ 328 - System
Simulates GJ 328, a cool M-dwarf of 0.65 solar masses, and GJ 328 c, a 0.07-Jupiter-mass companion, with an orbital period of 242 days, at 0.657 AU from its star.
GJ 3293 - System
Simulates GJ 3293, a cool M-dwarf of 0.42 solar masses, and GJ 3293 e, a 3.3-Earth-mass planet, with an orbital period of 13.3 days, at 0.082 AU from its star, on an eccentric orbit (e ≈ 0.21).
GJ 3323 - System
Simulates GJ 3323, a cool M-dwarf of 0.16 solar masses, and GJ 3323 b, a 2.0-Earth-mass planet, with an orbital period of 5.4 days, at 0.033 AU from its star, on an eccentric orbit (e ≈ 0.23).
GJ 3341 - System
Simulates GJ 3341, a cool M-dwarf of 0.47 solar masses, and GJ 3341 b, a 6.6-Earth-mass planet, with an orbital period of 14.2 days, at 0.089 AU from its star, on an eccentric orbit (e ≈ 0.31).
GJ 338 B - System
Simulates GJ 338 B, a cool M-dwarf of 0.64 solar masses, and GJ 338 B b, a 10.6-Earth-mass planet, with an orbital period of 24.4 days, at 0.142 AU from its star, on an eccentric orbit (e ≈ 0.11).
GJ 3470 - System
Simulates GJ 3470, a cool M-dwarf of 0.54 solar masses, and GJ 3470 b, a 13.9-Earth-mass planet, with an orbital period of 3.3 days, at 0.035 AU from its star, and an equilibrium temperature near 594 K.