🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.1

Radius: 8.2

Gravity: 9.5 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.5 AU - 0.66 AU

Year: 295 Days

Day: 6.2 Hours

Environment

Temp: -143 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 29,983,094 km

• M1: 102,026 km (0.114 R)
• M2: 391,946 km (0.091 R)
• M3: 660,774 km (0.088 R)
• M4: 967,001 km (0.112 R)
• M5: 1,409,062 km (0.111 R)
• M6: 1,671,008 km (0.112 R)
• M7: 2,071,631 km (0.098 R)
• M8: 2,379,205 km (0.116 R)
• M9: 2,773,395 km (0.048 R)
• M10: 3,056,584 km (0.068 R)
• M11: 3,467,978 km (0.043 R)
• M12: 4,299,144 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162.6

Radius: 11.8

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.55 AU - 0.89 AU

Year: 407 Days

Day: 5.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 96.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 29,983,094 km

• M1: 146,756 km (0.033 R)
• M2: 540,497 km (0.066 R)
• M3: 1,377,497 km (0.062 R)
• M4: 1,890,169 km (0.111 R)
• M5: 2,394,763 km (0.081 R)
• M6: 3,325,710 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166

Radius: 8.1

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.76 AU - 1.06 AU

Year: 579 Days

Day: 13.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 29,983,094 km

• M1: 100,679 km (0.111 R)
• M2: 572,212 km (0.073 R)
• M3: 872,455 km (0.118 R)
• M4: 1,409,511 km (0.09 R)
• M5: 1,732,343 km (0.1 R)
• M6: 2,057,719 km (0.068 R)
• M7: 2,415,258 km (0.079 R)
• M8: 2,756,939 km (0.086 R)
• M9: 3,110,140 km (0.108 R)
• M10: 3,493,559 km (0.098 R)
• M11: 3,789,613 km (0.062 R)
• M12: 4,316,497 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 440.3

Radius: 13.6

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.04 AU - 1.58 AU

Year: 1000 Days

Day: 11.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 29,983,094 km

• M1: 171,738 km (0.074 R)
• M2: 656,435 km (0.109 R)
• M3: 1,094,308 km (0.069 R)
• M4: 1,545,645 km (0.086 R)
• M5: 2,134,014 km (0.077 R)
• M6: 2,592,232 km (0.096 R)
• M7: 3,486,827 km (0.047 R)
• M8: 4,989,388 km (0.114 R)
• M9: 7,453,415 km (0.044 R)
• M10: 7,879,619 km (0.107 R)
• M11: 8,498,356 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.1

Radius: 10.4

Gravity: 8.35 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.62 AU - 3.34 AU

Year: 3430 Days

Day: 12.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 29,983,094 km

• M1: 129,402 km (0.102 R)
• M2: 474,824 km (0.101 R)
• M3: 892,800 km (0.104 R)
• M4: 1,266,196 km (0.07 R)
• M5: 1,626,278 km (0.1 R)
• M6: 2,312,334 km (0.117 R)
• M7: 2,756,191 km (0.106 R)
• M8: 3,670,683 km (0.09 R)
• M9: 4,925,360 km (0.096 R)
• M10: 5,286,190 km (0.077 R)
• M11: 5,748,149 km (0.111 R)
• M12: 7,070,145 km (0.088 R)
• M13: 11,334,582 km (0.07 R)
• M14: 13,597,848 km (0.095 R)
• M15: 14,624,239 km (0.104 R)
• M16: 15,102,653 km (0.084 R)
• M17: 17,652,998 km (0.109 R)
• M18: 18,687,168 km (0.106 R)
• M19: 19,314,132 km (0.086 R)
• M20: 20,019,785 km (0.111 R)
• M21: 20,543,827 km (0.115 R)
• M22: 21,211,632 km (0.045 R)
• M23: 21,962,763 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95.7

Radius: 8.4

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.51 AU - 4.53 AU

Year: 5375 Days

Day: 10 Hours

Environment

Temp: -222 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 29,983,094 km

• M1: 104,719 km (0.116 R)
• M2: 463,155 km (0.06 R)
• M3: 1,440,029 km (0.098 R)
• M4: 1,991,447 km (0.096 R)
• M5: 3,886,253 km (0.104 R)
• M6: 4,427,499 km (0.082 R)
• M7: 7,219,743 km (0.104 R)
• M8: 11,583,064 km (0.079 R)
• M9: 12,254,310 km (0.045 R)
• M10: 15,153,965 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 286.2

Radius: 6

Gravity: 7.95 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 6.78 AU - 7.98 AU

Year: 13369 Days

Day: 19.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 29,983,094 km

• M1: 78,539 km (0.048 R)
• M2: 437,723 km (0.1 R)
• M3: 820,245 km (0.07 R)
• M4: 1,811,181 km (0.095 R)
• M5: 4,524,588 km (0.112 R)
• M6: 5,833,419 km (0.082 R)
• M7: 7,102,309 km (0.083 R)
• M8: 8,371,048 km (0.083 R)
• M9: 11,778,289 km (0.109 R)
• M10: 12,669,593 km (0.116 R)
• M11: 14,711,604 km (0.092 R)
• M12: 17,172,190 km (0.095 R)
• M13: 18,832,726 km (0.103 R)
• M14: 21,397,881 km (0.061 R)
• M15: 22,302,200 km (0.103 R)
• M16: 22,975,839 km (0.057 R)
• M17: 25,258,404 km (0.103 R)
• M18: 33,441,108 km (0.113 R)
• M19: 35,446,916 km (0.104 R)
• M20: 36,133,122 km (0.085 R)
• M21: 36,363,652 km (0.116 R)
• M22: 39,208,704 km (0.083 R)
• M23: 39,574,471 km (0.037 R)
• M24: 40,436,604 km (0.085 R)
• M25: 42,198,567 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 53.3

Radius: 6.3

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 8.14 AU - 9.68 AU

Year: 17736 Days

Day: 16.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 29,983,094 km

• M1: 78,389 km (0.078 R)
• M2: 388,206 km (0.089 R)
• M3: 885,769 km (0.107 R)
• M4: 1,212,790 km (0.112 R)
• M5: 3,124,052 km (0.045 R)
• M6: 3,385,549 km (0.087 R)
• M7: 3,838,981 km (0.088 R)
• M8: 5,218,423 km (0.081 R)
• M9: 6,377,656 km (0.097 R)
• M10: 6,667,876 km (0.116 R)
• M11: 7,136,716 km (0.084 R)
• M12: 7,807,962 km (0.086 R)
• M13: 8,215,317 km (0.119 R)
• M14: 9,275,517 km (0.088 R)
• M15: 12,897,281 km (0.055 R)
• M16: 19,033,187 km (0.058 R)
• M17: 24,679,759 km (0.11 R)
• M18: 26,536,119 km (0.092 R)
• M19: 27,035,327 km (0.1 R)
• M20: 29,271,067 km (0.095 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 292 - 15,905 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit