🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.3

Radius: 9.6

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.53 AU - 0.77 AU

Year: 362 Days

Day: 11.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 43,294,895 km

• M1: 119,379 km (0.103 R)
• M2: 622,626 km (0.085 R)
• M3: 1,294,321 km (0.072 R)
• M4: 1,965,866 km (0.069 R)
• M5: 2,460,586 km (0.113 R)
• M6: 3,036,687 km (0.07 R)
• M7: 4,194,425 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624.3

Radius: 13.8

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.18 AU - 2.98 AU

Year: 2860 Days

Day: 10.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 43,294,895 km

• M1: 171,589 km (0.041 R)
• M2: 610,808 km (0.111 R)
• M3: 1,218,175 km (0.115 R)
• M4: 2,043,507 km (0.079 R)
• M5: 2,482,128 km (0.093 R)
• M6: 3,356,677 km (0.1 R)
• M7: 3,856,783 km (0.102 R)
• M8: 4,916,085 km (0.063 R)
• M9: 5,793,028 km (0.079 R)
• M10: 7,033,045 km (0.113 R)
• M11: 8,409,943 km (0.104 R)
• M12: 9,922,528 km (0.1 R)
• M13: 10,841,956 km (0.109 R)
• M14: 12,630,847 km (0.077 R)
• M15: 13,897,044 km (0.07 R)
• M16: 14,464,917 km (0.086 R)
• M17: 14,900,846 km (0.104 R)
• M18: 18,259,916 km (0.116 R)
• M19: 19,817,828 km (0.093 R)

Planet 3 - Ice Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 31

Radius: 7.3

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 5.63 AU - 5.81 AU

Year: 9443 Days

Day: 21.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 43,294,895 km

• M1: 91,554 km (0.119 R)
• M2: 334,202 km (0.084 R)
• M3: 2,183,979 km (0.087 R)
• M4: 3,838,532 km (0.045 R)
• M5: 8,462,004 km (0.028 R)
• M6: 9,609,569 km (0.117 R)
• M7: 10,061,055 km (0.106 R)
• M8: 15,479,490 km (0.082 R)

Planet 4 - Ice Giant

Semi-Major Axis: 7.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 272.6

Radius: 6.4

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 7.55 AU - 7.93 AU

Year: 14864 Days

Day: 15.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 43,294,895 km

• M1: 83,027 km (0.095 R)
• M2: 296,952 km (0.117 R)
• M3: 1,256,473 km (0.114 R)
• M4: 1,787,545 km (0.079 R)
• M5: 2,777,883 km (0.115 R)
• M6: 4,629,306 km (0.111 R)
• M7: 5,212,738 km (0.101 R)
• M8: 6,018,322 km (0.074 R)
• M9: 6,487,910 km (0.093 R)
• M10: 7,257,591 km (0.077 R)
• M11: 9,590,121 km (0.085 R)
• M12: 9,882,286 km (0.112 R)
• M13: 11,217,297 km (0.086 R)
• M14: 14,620,499 km (0.119 R)
• M15: 16,835,146 km (0.059 R)
• M16: 18,132,758 km (0.066 R)
• M17: 22,084,834 km (0.026 R)
• M18: 22,423,823 km (0.11 R)
• M19: 22,852,421 km (0.117 R)
• M20: 27,933,812 km (0.111 R)
• M21: 30,893,905 km (0.102 R)
• M22: 32,613,383 km (0.101 R)
• M23: 33,053,051 km (0.115 R)
• M24: 35,195,442 km (0.067 R)
• M25: 36,950,973 km (0.079 R)
• M26: 38,641,280 km (0.064 R)
• M27: 41,016,894 km (0.117 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 151.3

Radius: 5.9

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 7.89 AU - 9.87 AU

Year: 18265 Days

Day: 20 Hours

Environment

Temp: -235 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 43,294,895 km

• M1: 73,602 km (0.106 R)
• M2: 351,555 km (0.047 R)
• M3: 724,652 km (0.111 R)
• M4: 914,641 km (0.11 R)
• M5: 1,138,440 km (0.096 R)
• M6: 2,482,726 km (0.097 R)
• M7: 3,391,234 km (0.119 R)
• M8: 4,171,537 km (0.073 R)
• M9: 5,189,550 km (0.101 R)
• M10: 6,399,348 km (0.05 R)
• M11: 6,729,062 km (0.089 R)
• M12: 7,745,430 km (0.07 R)
• M13: 7,952,024 km (0.117 R)
• M14: 9,040,798 km (0.056 R)
• M15: 9,316,207 km (0.09 R)
• M16: 14,708,612 km (0.119 R)
• M17: 23,384,990 km (0.076 R)
• M18: 37,955,673 km (0.071 R)
• M19: 38,792,972 km (0.119 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 331 - 14,951 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit