G 9-40 - System
Simulates G 9-40, a cool M-dwarf of 0.30 solar masses, and G 9-40 b, a 4.0-Earth-mass planet, with an orbital period of 5.7 days, at 0.042 AU from its star, and an equilibrium temperature near 441 K.
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 1002 - System
Simulates GJ 1002, a nearby quiet red dwarf with two Earth-mass planets in the habitable zone, among the closest temperate worlds known. Both planets were found by radial-velocity monitoring.
GJ 1061 - System
Simulates GJ 1061, a cool M-dwarf of 0.12 solar masses, and GJ 1061 b, a 1.1-Earth-mass planet, with an orbital period of 3.2 days, at 0.021 AU from its star.
GJ 1132 - System
Simulates GJ 1132 b, a nearby rocky planet that may have lost and then rebuilt an atmosphere. It is a key JWST target for secondary atmospheres. The red dwarf is only about 41 light-years from the Sun.
GJ 1148 - System
Simulates GJ 1148, a cool M-dwarf of 0.34 solar masses, and GJ 1148 b, a 0.30-Jupiter-mass companion, with an orbital period of 41.4 days, at 0.166 AU from its star, on an eccentric orbit (e ≈ 0.38).
GJ 1151 - System
Simulates GJ 1151, a cool M-dwarf of 0.16 solar masses, and GJ 1151 c, a 10.6-Earth-mass planet, with an orbital period of 1.07 years, at 0.571 AU from its star.
GJ 1214 - System
Simulates GJ 1214 b, the archetype sub-Neptune. This nearby mini-Neptune has a famously flat transmission spectrum, hiding water, haze, or both. The red-dwarf host is only about 48 light-years away.
GJ 1252 - System
Simulates GJ 1252, a cool M-dwarf of 0.38 solar masses, and GJ 1252 b, a 1.3-Earth-mass planet, with an orbital period of 12.4 hours.
GJ 1265 - System
Simulates GJ 1265, a cool M-dwarf of 0.18 solar masses, and GJ 1265 b, a 7.4-Earth-mass planet, with an orbital period of 3.7 days, at 0.026 AU from its star.
GJ 1289 - System
Simulates GJ 1289, a cool M-dwarf of 0.21 solar masses, and GJ 1289 b, a 6.3-Earth-mass planet, with an orbital period of 112 days, at 0.270 AU from its star, and an equilibrium temperature near 150 K.
GJ 143 - System
Simulates GJ 143, an orange K-type dwarf of 0.73 solar masses, and HD 21749 c, a 3.7-Earth-mass planet, with an orbital period of 7.8 days, at 0.070 AU from its star, and an equilibrium temperature near 701 K.
GJ 15 A - System
Simulates GJ 15 A, a cool M-dwarf of 0.38 solar masses, and GJ 15 A b, a 3.0-Earth-mass planet, with an orbital period of 11.4 days, at 0.072 AU from its star, on an eccentric orbit (e ≈ 0.09).
GJ 160.2 - System
Simulates GJ 160.2, a cool M-dwarf of 0.69 solar masses, and GJ 160.2 b, a 10.2-Earth-mass planet, with an orbital period of 5.2 days, at 0.053 AU from its star, on an eccentric orbit (e ≈ 0.06).
GJ 163 - System
Simulates GJ 163, a cool M-dwarf of 0.40 solar masses, and GJ 163 b, a 10.6-Earth-mass planet, with an orbital period of 8.6 days, at 0.061 AU from its star, on an eccentric orbit (e ≈ 0.07).
GJ 179 - System
Simulates GJ 179, a cool M-dwarf of 0.36 solar masses, and GJ 179 b, a 0.82-Jupiter-mass companion, with an orbital period of 6.26 years, at 2.410 AU from its star, on an eccentric orbit (e ≈ 0.21).
GJ 180 - System
Simulates GJ 180, a cool M-dwarf of 0.43 solar masses, and GJ 180 b, a 6.5-Earth-mass planet, with an orbital period of 17.1 days, at 0.092 AU from its star, on an eccentric orbit (e ≈ 0.07).
GJ 2030 - System
Simulates GJ 2030, a Sun-like G-type star of 0.96 solar masses, and GJ 2030 b, a 4.8-Earth-mass planet, with an orbital period of 2.4 days, at 0.034 AU from its star, on an eccentric orbit (e ≈ 0.24).
GJ 2056 - System
Simulates GJ 2056, an orange K-type dwarf of 0.62 solar masses, and GJ 2056 b, a 0.05-Jupiter-mass companion, with an orbital period of 70.0 days, at 0.283 AU from its star, on an eccentric orbit (e ≈ 0.72).