LHS 3844 - System
Simulates LHS 3844 b, a bare-rock planet with no detected atmosphere. Its dayside phase curve shows heat reradiated straight from the surface. The world orbits in only about 11 hours.
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.
LHS 475 - System
Simulates LHS 475, a cool M-dwarf of 0.26 solar masses, and LHS 475 b, a planet with 1.0 Earth radii, with an orbital period of 2.0 days, and an equilibrium temperature near 586 K.
LP 261-75 A - System
Simulates LP 261-75 A, a cool M-dwarf of 0.22 solar masses, and LP 261-75 b, a 21.0-Jupiter-mass companion, at 450 AU from its star, and an equilibrium temperature near 1,500 K.
LP 714-47 - System
Simulates LP 714-47, a cool M-dwarf of 0.54 solar masses, and LP 714-47 b, a 0.09-Jupiter-mass companion, with an orbital period of 4.1 days, at 0.041 AU from its star, and an equilibrium temperature near 723 K.
LP 791-18 - System
Simulates LP 791-18, a cool M-dwarf of 0.14 solar masses, and LP 791-18 b, a planet with 1.2 Earth radii, with an orbital period of 22.8 hours, at 0.010 AU from its star, and an equilibrium temperature near 564 K.
LP 890-9 - System
Simulates LP 890-9, also SPECULOOS-2, an ultracool dwarf with two Earth-sized planets. The outer one transits in the habitable zone. The host is one of the coolest stars known to have planets.
LSPM J2116+0234 - System
Simulates LSPM J2116+0234, a cool M-dwarf of 0.43 solar masses, and LSPM J2116+0234 b, a 13.3-Earth-mass planet, with an orbital period of 14.4 days, at 0.088 AU from its star, on an eccentric orbit (e ≈ 0.18).
LTT 1445 A - System
Simulates LTT 1445 A, a cool M-dwarf of 0.26 solar masses, and LTT 1445 A c, a 1.5-Earth-mass planet, with an orbital period of 3.1 days, at 0.027 AU from its star, and an equilibrium temperature near 508 K.
LTT 3780 - System
Simulates LTT 3780, a cool M-dwarf of 0.38 solar masses, and LTT 3780 b, a 2.5-Earth-mass planet, with an orbital period of 18.4 hours, at 0.012 AU from its star, and an equilibrium temperature near 903 K.
LTT 9779 - System
Simulates LTT 9779, a Sun-like G-type star of 1.02 solar masses, and LTT 9779 b, a 0.09-Jupiter-mass companion, with an orbital period of 19.0 hours, at 0.017 AU from its star, and an equilibrium temperature near 1,978 K.
LkCa 15 - System
Simulates LkCa 15, an orange K-type dwarf of 1.00 solar masses, and LkCa 15 b, a confirmed exoplanet, at 14.7 AU from its star.
Luhman 16 A - System
Simulates Luhman 16 A, a Sun-like G-type star of 0.03 solar masses, and Luhman 16 b, a 29.4-Jupiter-mass companion, with an orbital period of 26.5 years, at 3.520 AU from its star, on an eccentric orbit (e ≈ 0.34).
Lupus-TR-3 - System
Simulates Lupus-TR-3, an orange K-type dwarf of 0.87 solar masses, and Lupus-TR-3 b, a 0.81-Jupiter-mass companion, with an orbital period of 3.9 days, at 0.046 AU from its star.
MASCARA-1 - System
Simulates MASCARA-1, a Sun-like F-type star of 1.90 solar masses, and MASCARA-1 b, a planet with 17.9 Earth radii, with an orbital period of 2.1 days, at 0.040 AU from its star, and an equilibrium temperature near 2,594.
MASCARA-4 - System
Simulates MASCARA-4, and MASCARA-4 b, a 1.68-Jupiter-mass companion, with an orbital period of 2.8 days, at 0.047 AU from its star, and an equilibrium temperature near 2,250 K.
MOA-2007-BLG-192L - System
Simulates MOA-2007-BLG-192L, a Sun-like G-type star of 0.28 solar masses, and MOA-2007-BLG-192L b, a 12.5-Earth-mass planet, at 2.020 AU from its star.
MOA-2007-BLG-400L - System
Simulates MOA-2007-BLG-400L, a Sun-like G-type star of 0.69 solar masses, and MOA-2007-BLG-400L b, a 1.70-Jupiter-mass companion, at 5.900 AU from its star.
MOA-2008-BLG-310L - System
Simulates MOA-2008-BLG-310L, a Sun-like G-type star of 0.21 solar masses, and MOA-2008-BLG-310L b, a 0.07-Jupiter-mass companion, at 1.100 AU from its star.