🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.45 AU - 0.57 AU

Year: 133 Days

Day: 34.2 Hours

Environment

Temp: 232 °C

Axial Tilt: 11.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.47

Radius: 0.74

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2 AU - 2.8 AU

Year: 1358 Days

Day: 29.6 Hours

Environment

Temp: -90 °C

Axial Tilt: 9.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,694,346 km

• M1: 40,391 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 8.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 451.2

Radius: 12

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 7.33 AU - 10.43 AU

Year: 9665 Days

Day: 8.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,694,346 km

• M1: 149,299 km (0.092 R)
• M2: 948,750 km (0.033 R)
• M3: 1,788,443 km (0.113 R)
• M4: 2,690,817 km (0.112 R)
• M5: 3,223,685 km (0.104 R)
• M6: 3,609,348 km (0.052 R)
• M7: 4,726,246 km (0.089 R)
• M8: 5,166,063 km (0.092 R)
• M9: 5,795,122 km (0.118 R)
• M10: 6,616,714 km (0.112 R)
• M11: 8,074,695 km (0.095 R)
• M12: 11,150,726 km (0.112 R)
• M13: 16,278,044 km (0.118 R)
• M14: 17,217,369 km (0.076 R)
• M15: 18,334,715 km (0.111 R)
• M16: 19,351,532 km (0.095 R)
• M17: 23,712,609 km (0.079 R)
• M18: 26,348,075 km (0.108 R)
• M19: 28,592,491 km (0.114 R)
• M20: 29,466,143 km (0.073 R)
• M21: 38,850,567 km (0.104 R)

Planet 4 - Ice Giant

Semi-Major Axis: 13.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 65.2

Radius: 3.8

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 10.6 AU - 15.86 AU

Year: 17576 Days

Day: 15.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 51,694,346 km

• M1: 49,068 km (0.103 R)
• M2: 170,392 km (0.114 R)
• M3: 503,995 km (0.067 R)
• M4: 807,529 km (0.099 R)
• M5: 1,023,249 km (0.108 R)
• M6: 2,053,829 km (0.085 R)
• M7: 2,355,119 km (0.085 R)
• M8: 3,393,927 km (0.119 R)
• M9: 4,219,707 km (0.087 R)
• M10: 6,684,033 km (0.092 R)
• M11: 7,450,423 km (0.105 R)
• M12: 17,853,608 km (0.061 R)
• M13: 18,114,208 km (0.09 R)
• M14: 20,150,085 km (0.118 R)
• M15: 23,481,929 km (0.077 R)
• M16: 27,507,608 km (0.111 R)
• M17: 31,683,632 km (0.047 R)

Planet 5 - Ice Giant

Semi-Major Axis: 17.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 112.3

Radius: 7.2

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 14.75 AU - 21.05 AU

Year: 27661 Days

Day: 21.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,694,346 km

• M1: 89,609 km (0.096 R)
• M2: 375,640 km (0.094 R)
• M3: 624,122 km (0.061 R)
• M4: 955,332 km (0.072 R)
• M5: 2,598,964 km (0.079 R)
• M6: 3,342,914 km (0.03 R)
• M7: 4,050,961 km (0.081 R)
• M8: 5,868,276 km (0.115 R)
• M9: 10,315,372 km (0.043 R)
• M10: 12,093,193 km (0.069 R)
• M11: 22,475,584 km (0.092 R)
• M12: 25,726,495 km (0.119 R)
• M13: 40,012,045 km (0.094 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: 213 - 19,131 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit