🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.5

Radius: 10.9

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.83 AU - 0.87 AU

Year: 532 Days

Day: 5.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,110,036 km

• M1: 135,536 km (0.049 R)
• M2: 520,152 km (0.119 R)
• M3: 1,060,948 km (0.072 R)
• M4: 1,439,132 km (0.07 R)
• M5: 1,782,159 km (0.068 R)
• M6: 2,702,486 km (0.069 R)
• M7: 3,068,552 km (0.11 R)
• M8: 3,446,137 km (0.104 R)
• M9: 3,878,474 km (0.115 R)
• M10: 4,220,006 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239

Radius: 8.6

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.74 AU - 2.12 AU

Year: 1819 Days

Day: 9.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 54,110,036 km

• M1: 107,561 km (0.06 R)
• M2: 423,362 km (0.099 R)
• M3: 772,972 km (0.067 R)
• M4: 1,307,934 km (0.103 R)
• M5: 1,712,596 km (0.111 R)
• M6: 2,210,309 km (0.086 R)
• M7: 3,120,612 km (0.115 R)
• M8: 3,754,009 km (0.066 R)
• M9: 4,889,457 km (0.11 R)
• M10: 5,722,418 km (0.061 R)
• M11: 6,600,557 km (0.095 R)
• M12: 7,515,498 km (0.11 R)
• M13: 8,567,470 km (0.086 R)
• M14: 8,957,771 km (0.08 R)
• M15: 10,831,484 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.8

Radius: 13.1

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 3.56 AU - 4.74 AU

Year: 5734 Days

Day: 12.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,110,036 km

• M1: 162,912 km (0.112 R)
• M2: 934,687 km (0.112 R)
• M3: 1,528,292 km (0.112 R)
• M4: 2,646,386 km (0.048 R)
• M5: 3,860,523 km (0.109 R)
• M6: 4,543,437 km (0.068 R)
• M7: 5,969,254 km (0.118 R)
• M8: 7,255,347 km (0.074 R)
• M9: 12,767,879 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.4

Radius: 12.7

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 4.99 AU - 5.67 AU

Year: 8346 Days

Day: 11.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,110,036 km

• M1: 160,369 km (0.104 R)
• M2: 646,113 km (0.032 R)
• M3: 1,291,778 km (0.048 R)
• M4: 2,122,794 km (0.097 R)
• M5: 7,838,180 km (0.099 R)
• M6: 8,457,665 km (0.11 R)
• M7: 14,010,289 km (0.111 R)
• M8: 18,915,604 km (0.103 R)
• M9: 22,035,916 km (0.108 R)
• M10: 23,718,144 km (0.102 R)
• M11: 24,860,324 km (0.088 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 778.2

Radius: 3.4

Gravity: 67.32 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 4.37 AU - 7.03 AU

Year: 9230 Days

Day: 19.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,110,036 km

• M1: 44,431 km (0.107 R)
• M2: 151,243 km (0.06 R)
• M3: 546,631 km (0.1 R)
• M4: 1,426,416 km (0.096 R)
• M5: 2,143,737 km (0.099 R)
• M6: 2,580,563 km (0.118 R)
• M7: 3,096,826 km (0.089 R)
• M8: 5,787,792 km (0.105 R)
• M9: 7,054,886 km (0.109 R)
• M10: 7,337,028 km (0.115 R)
• M11: 11,441,844 km (0.111 R)
• M12: 12,812,908 km (0.086 R)
• M13: 13,910,508 km (0.09 R)
• M14: 15,402,148 km (0.103 R)
• M15: 15,604,105 km (0.056 R)
• M16: 21,333,554 km (0.052 R)
• M17: 24,478,700 km (0.098 R)
• M18: 25,310,613 km (0.034 R)
• M19: 27,919,301 km (0.117 R)
• M20: 28,119,463 km (0.12 R)
• M21: 41,692,029 km (0.065 R)
• M22: 43,009,837 km (0.09 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 285.2

Radius: 7.6

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 8.7 AU - 9.48 AU

Year: 18588 Days

Day: 24.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 54,110,036 km

• M1: 94,546 km (0.102 R)
• M2: 399,127 km (0.115 R)
• M3: 709,842 km (0.104 R)
• M4: 979,716 km (0.11 R)
• M5: 1,453,194 km (0.089 R)
• M6: 1,948,811 km (0.11 R)
• M7: 3,348,150 km (0.101 R)
• M8: 5,149,159 km (0.107 R)
• M9: 6,606,242 km (0.114 R)
• M10: 7,175,761 km (0.106 R)
• M11: 7,472,563 km (0.098 R)
• M12: 8,273,510 km (0.06 R)
• M13: 10,309,836 km (0.097 R)
• M14: 11,645,596 km (0.12 R)
• M15: 12,115,333 km (0.056 R)
• M16: 13,155,637 km (0.111 R)
• M17: 15,273,494 km (0.093 R)
• M18: 17,839,097 km (0.05 R)
• M19: 19,102,302 km (0.112 R)
• M20: 20,424,148 km (0.119 R)
• M21: 21,982,958 km (0.049 R)
• M22: 23,433,609 km (0.075 R)
• M23: 24,277,042 km (0.118 R)
• M24: 27,440,438 km (0.07 R)
• M25: 36,654,171 km (0.106 R)
• M26: 37,408,892 km (0.108 R)
• M27: 44,105,342 km (0.096 R)
• M28: 46,406,007 km (0.059 R)
• M29: 51,245,349 km (0.027 R)
• M30: 52,505,711 km (0.106 R)
• M31: 52,983,676 km (0.097 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 16,767 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit