🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.18

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.44 AU - 0.7 AU

Year: 159 Days

Day: 36.3 Hours

Environment

Temp: 177 °C

Axial Tilt: 19.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.88

Radius: 0.95

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.58 AU - 0.58 AU

Year: 163 Days

Day: 16.2 Hours

Environment

Temp: 216 °C

Axial Tilt: 17.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.51 AU - 0.71 AU

Year: 176 Days

Day: 26.8 Hours

Environment

Temp: 206 °C

Axial Tilt: 44.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 58,892,238 km

• M1: 33,809 km (0.105 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.79

Radius: 0.91

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.5 AU - 0.8 AU

Year: 193 Days

Day: 27.9 Hours

Environment

Temp: 152 °C

Axial Tilt: 12.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.95 AU - 1.35 AU

Year: 455 Days

Day: 13.9 Hours

Environment

Temp: 19 °C

Axial Tilt: 47 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 58,892,238 km

• M1: 42,037 km (0.111 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.26 AU - 3.42 AU

Year: 2252 Days

Day: 35 Hours

Environment

Temp: -113 °C

Axial Tilt: 23.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764.8

Radius: 8.5

Gravity: 10.59 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 7.84 AU - 8.54 AU

Year: 8648 Days

Day: 10.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 58,892,238 km

• M1: 105,766 km (0.102 R)
• M2: 414,536 km (0.085 R)
• M3: 767,886 km (0.115 R)
• M4: 1,042,248 km (0.119 R)
• M5: 1,875,509 km (0.103 R)
• M6: 4,575,002 km (0.044 R)
• M7: 7,078,822 km (0.06 R)
• M8: 7,971,472 km (0.065 R)
• M9: 8,755,963 km (0.104 R)
• M10: 11,046,756 km (0.085 R)
• M11: 12,992,874 km (0.07 R)
• M12: 13,408,008 km (0.079 R)
• M13: 13,709,897 km (0.064 R)
• M14: 14,202,223 km (0.06 R)
• M15: 14,834,274 km (0.09 R)
• M16: 15,222,481 km (0.087 R)
• M17: 21,888,412 km (0.072 R)
• M18: 24,482,440 km (0.072 R)
• M19: 25,667,703 km (0.049 R)
• M20: 30,375,848 km (0.052 R)
• M21: 32,388,537 km (0.083 R)
• M22: 32,714,362 km (0.067 R)
• M23: 36,092,880 km (0.1 R)
• M24: 37,031,607 km (0.08 R)
• M25: 37,387,799 km (0.103 R)
• M26: 40,445,580 km (0.119 R)
• M27: 40,823,314 km (0.114 R)
• M28: 41,330,750 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.8

Radius: 8.7

Gravity: 9.01 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 9.61 AU - 10.07 AU

Year: 11389 Days

Day: 10.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 58,892,238 km

• M1: 108,309 km (0.104 R)
• M2: 382,522 km (0.074 R)
• M3: 685,757 km (0.12 R)
• M4: 992,283 km (0.079 R)
• M5: 1,378,395 km (0.087 R)
• M6: 1,767,349 km (0.118 R)
• M7: 4,220,455 km (0.066 R)
• M8: 4,760,055 km (0.088 R)
• M9: 6,579,614 km (0.113 R)
• M10: 6,855,771 km (0.091 R)
• M11: 7,222,286 km (0.036 R)
• M12: 8,400,968 km (0.092 R)
• M13: 8,773,616 km (0.093 R)
• M14: 9,502,158 km (0.089 R)
• M15: 10,113,414 km (0.102 R)
• M16: 14,411,660 km (0.104 R)
• M17: 17,069,715 km (0.076 R)
• M18: 19,467,470 km (0.097 R)
• M19: 22,434,445 km (0.062 R)
• M20: 23,609,237 km (0.076 R)
• M21: 24,446,237 km (0.087 R)
• M22: 26,675,096 km (0.097 R)
• M23: 34,880,688 km (0.108 R)
• M24: 35,360,299 km (0.093 R)
• M25: 36,825,461 km (0.117 R)
• M26: 37,198,109 km (0.08 R)
• M27: 38,458,022 km (0.094 R)
• M28: 39,227,703 km (0.032 R)
• M29: 47,203,813 km (0.107 R)
• M30: 47,643,481 km (0.102 R)
• M31: 50,951,688 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 395.8

Radius: 4.4

Gravity: 20.44 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 11.99 AU - 14.63 AU

Year: 17916 Days

Day: 16.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 58,892,238 km

• M1: 54,753 km (0.085 R)
• M2: 996,322 km (0.05 R)
• M3: 1,643,333 km (0.09 R)
• M4: 3,059,276 km (0.092 R)
• M5: 3,544,871 km (0.079 R)
• M6: 3,764,182 km (0.089 R)
• M7: 4,139,672 km (0.084 R)
• M8: 6,202,477 km (0.101 R)
• M9: 11,298,678 km (0.087 R)
• M10: 13,278,756 km (0.108 R)
• M11: 19,383,396 km (0.062 R)
• M12: 23,037,773 km (0.083 R)
• M13: 25,882,975 km (0.077 R)
• M14: 35,052,576 km (0.03 R)
• M15: 36,829,649 km (0.115 R)
• M16: 45,870,746 km (0.057 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 314 - 13,226 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit