🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.6

Radius: 9.9

Gravity: 9.79 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.74 AU - 0.86 AU

Year: 485 Days

Day: 14.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,973,086 km

• M1: 123,269 km (0.102 R)
• M2: 837,299 km (0.042 R)
• M3: 1,173,147 km (0.093 R)
• M4: 1,527,095 km (0.082 R)
• M5: 1,885,083 km (0.057 R)
• M6: 2,222,875 km (0.049 R)
• M7: 2,976,399 km (0.112 R)
• M8: 3,541,430 km (0.067 R)
• M9: 3,947,439 km (0.106 R)
• M10: 5,184,464 km (0.112 R)
• M11: 5,910,761 km (0.083 R)
• M12: 6,288,945 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.7

Radius: 8

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.8 AU - 1.08 AU

Year: 618 Days

Day: 13 Hours

Environment

Temp: -182 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,973,086 km

• M1: 99,483 km (0.079 R)
• M2: 364,271 km (0.117 R)
• M3: 656,585 km (0.118 R)
• M4: 1,018,911 km (0.035 R)
• M5: 1,340,247 km (0.075 R)
• M6: 1,950,457 km (0.063 R)
• M7: 2,347,191 km (0.117 R)
• M8: 2,620,506 km (0.092 R)
• M9: 3,398,864 km (0.115 R)
• M10: 3,854,988 km (0.111 R)
• M11: 5,867,378 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.4

Radius: 11.8

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.59 AU - 2.99 AU

Year: 3161 Days

Day: 11.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,973,086 km

• M1: 146,905 km (0.04 R)
• M2: 787,782 km (0.118 R)
• M3: 1,164,769 km (0.095 R)
• M4: 1,549,535 km (0.086 R)
• M5: 2,138,053 km (0.085 R)
• M6: 2,532,842 km (0.078 R)
• M7: 2,976,399 km (0.071 R)
• M8: 3,539,785 km (0.077 R)
• M9: 4,289,270 km (0.12 R)
• M10: 4,754,370 km (0.114 R)
• M11: 5,573,568 km (0.06 R)
• M12: 6,228,956 km (0.093 R)
• M13: 7,988,825 km (0.081 R)
• M14: 8,383,315 km (0.036 R)
• M15: 9,410,454 km (0.082 R)
• M16: 11,947,484 km (0.077 R)
• M17: 12,626,659 km (0.074 R)
• M18: 14,149,715 km (0.108 R)
• M19: 14,910,121 km (0.06 R)
• M20: 15,463,184 km (0.104 R)

Planet 4 - Ice Giant

Semi-Major Axis: 8.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 155.8

Radius: 3.9

Gravity: 10.24 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 6.92 AU - 9.92 AU

Year: 16571 Days

Day: 21 Hours

Environment

Temp: -242 °C

Axial Tilt: 66.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,973,086 km

• M1: 71,059 km (0.111 R)
• M2: 225,743 km (0.054 R)
• M3: 527,183 km (0.03 R)
• M4: 743,202 km (0.067 R)
• M5: 1,015,919 km (0.033 R)
• M6: 1,479,523 km (0.109 R)
• M7: 1,642,884 km (0.111 R)
• M8: 2,628,584 km (0.056 R)
• M9: 3,827,761 km (0.105 R)
• M10: 4,006,081 km (0.092 R)
• M11: 5,012,127 km (0.065 R)
• M12: 6,820,317 km (0.065 R)
• M13: 7,667,340 km (0.105 R)
• M14: 8,800,095 km (0.093 R)
• M15: 13,551,174 km (0.097 R)
• M16: 14,449,658 km (0.104 R)
• M17: 15,196,600 km (0.101 R)
• M18: 15,773,450 km (0.101 R)
• M19: 17,591,214 km (0.113 R)
• M20: 17,942,619 km (0.093 R)
• M21: 21,476,869 km (0.067 R)
• M22: 29,783,141 km (0.108 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 523 - 18,940 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit