🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.72 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.26 AU - 1.6 AU

Year: 615 Days

Day: 39.7 Hours

Environment

Temp: -8 °C

Axial Tilt: 44 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.72

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.8 AU - 4.56 AU

Year: 2541 Days

Day: 14.5 Hours

Environment

Temp: -119 °C

Axial Tilt: 43.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 11.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.8

Radius: 13.5

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 11.2 AU - 11.34 AU

Year: 13616 Days

Day: 5.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 103,773,456 km

• M1: 467,643 km (0.062 R)
• M2: 2,137,454 km (0.11 R)
• M3: 3,703,445 km (0.083 R)
• M4: 5,828,931 km (0.045 R)
• M5: 9,141,477 km (0.09 R)
• M6: 11,087,745 km (0.075 R)
• M7: 14,834,723 km (0.095 R)
• M8: 15,509,410 km (0.113 R)
• M9: 20,820,433 km (0.092 R)
• M10: 21,410,447 km (0.096 R)
• M11: 22,978,981 km (0.084 R)
• M12: 29,811,864 km (0.059 R)
• M13: 30,561,947 km (0.094 R)
• M14: 32,548,308 km (0.116 R)
• M15: 34,619,341 km (0.095 R)
• M16: 36,776,991 km (0.049 R)
• M17: 44,477,242 km (0.08 R)
• M18: 47,313,767 km (0.089 R)

Planet 4 - Ice Giant

Semi-Major Axis: 13.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 825.8

Radius: 3.3

Gravity: 75.83 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 12.64 AU - 14.48 AU

Year: 17971 Days

Day: 19.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 103,773,456 km

• M1: 40,990 km (0.036 R)
• M2: 146,905 km (0.075 R)
• M3: 361,428 km (0.031 R)
• M4: 690,245 km (0.095 R)
• M5: 888,163 km (0.114 R)
• M6: 1,149,360 km (0.094 R)
• M7: 1,507,947 km (0.107 R)
• M8: 2,221,678 km (0.04 R)
• M9: 2,329,987 km (0.068 R)
• M10: 2,441,736 km (0.057 R)
• M11: 2,628,135 km (0.08 R)
• M12: 3,135,721 km (0.084 R)
• M13: 4,477,315 km (0.076 R)
• M14: 8,692,235 km (0.113 R)
• M15: 9,632,158 km (0.093 R)
• M16: 13,998,022 km (0.099 R)
• M17: 18,002,458 km (0.099 R)
• M18: 18,176,889 km (0.119 R)
• M19: 18,885,684 km (0.097 R)
• M20: 19,337,918 km (0.043 R)
• M21: 19,520,877 km (0.069 R)
• M22: 19,890,084 km (0.102 R)
• M23: 20,929,640 km (0.114 R)
• M24: 21,707,997 km (0.087 R)
• M25: 26,001,905 km (0.088 R)
• M26: 27,128,826 km (0.11 R)
• M27: 33,124,110 km (0.073 R)
• M28: 34,447,303 km (0.097 R)
• M29: 35,943,132 km (0.118 R)
• M30: 36,081,211 km (0.086 R)
• M31: 36,917,164 km (0.097 R)
• M32: 37,339,928 km (0.109 R)
• M33: 38,338,942 km (0.064 R)
• M34: 39,063,295 km (0.068 R)
• M35: 45,350,894 km (0.093 R)
• M36: 46,324,177 km (0.106 R)
• M37: 51,575,063 km (0.111 R)
• M38: 51,750,691 km (0.107 R)
• M39: 56,459,732 km (0.113 R)
• M40: 69,678,499 km (0.114 R)
• M41: 74,056,930 km (0.109 R)

Planet 5 - Ice Giant

Semi-Major Axis: 18.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 855.9

Radius: 4.1

Gravity: 50.92 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 17.57 AU - 19.31 AU

Year: 28498 Days

Day: 22.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 103,773,456 km

• M1: 51,312 km (0.091 R)
• M2: 394,041 km (0.09 R)
• M3: 796,609 km (0.109 R)
• M4: 1,011,581 km (0.052 R)
• M5: 1,671,607 km (0.094 R)
• M6: 1,895,106 km (0.06 R)
• M7: 4,020,742 km (0.112 R)
• M8: 6,016,378 km (0.057 R)
• M9: 6,156,551 km (0.118 R)
• M10: 6,689,269 km (0.077 R)
• M11: 7,199,697 km (0.093 R)
• M12: 7,626,350 km (0.114 R)
• M13: 8,013,360 km (0.102 R)
• M14: 12,479,305 km (0.107 R)
• M15: 20,184,044 km (0.116 R)
• M16: 23,710,066 km (0.088 R)
• M17: 24,413,924 km (0.092 R)
• M18: 30,553,720 km (0.096 R)
• M19: 30,691,499 km (0.102 R)
• M20: 31,667,775 km (0.027 R)
• M21: 32,377,766 km (0.063 R)
• M22: 32,520,932 km (0.102 R)
• M23: 35,323,648 km (0.111 R)
• M24: 36,705,782 km (0.117 R)
• M25: 39,905,382 km (0.098 R)
• M26: 44,336,171 km (0.074 R)
• M27: 45,045,564 km (0.108 R)
• M28: 51,384,625 km (0.099 R)
• M29: 62,410,137 km (0.113 R)
• M30: 78,729,769 km (0.089 R)
• M31: 84,833,811 km (0.057 R)
• M32: 85,378,946 km (0.118 R)
• M33: 93,840,052 km (0.095 R)
• M34: 97,077,200 km (0.106 R)
• M35: 103,773,500 km (0.085 R)

Kuiper Belt

Range: 30.5 - 59.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 177 - 13,473 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit