🌌 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 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.61 AU - 0.71 AU

Year: 352 Days

Day: 31.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,996,620 km

• M1: 380,727 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.3

Radius: 9.6

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.01 AU - 1.07 AU

Year: 696 Days

Day: 10.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 61,996,620 km

• M1: 119,977 km (0.041 R)
• M2: 421,866 km (0.071 R)
• M3: 756,068 km (0.082 R)
• M4: 1,131,409 km (0.06 R)
• M5: 1,777,671 km (0.091 R)
• M6: 2,098,409 km (0.042 R)
• M7: 2,398,503 km (0.105 R)
• M8: 3,017,090 km (0.12 R)
• M9: 3,401,856 km (0.053 R)
• M10: 3,846,610 km (0.098 R)
• M11: 4,965,602 km (0.095 R)
• M12: 6,698,394 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.1

Radius: 8.2

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.01 AU - 1.33 AU

Year: 830 Days

Day: 8.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 61,996,620 km

• M1: 102,026 km (0.11 R)
• M2: 477,816 km (0.044 R)
• M3: 739,013 km (0.105 R)
• M4: 1,438,832 km (0.118 R)
• M5: 1,915,900 km (0.026 R)
• M6: 2,269,549 km (0.11 R)
• M7: 2,627,537 km (0.069 R)
• M8: 3,263,178 km (0.094 R)
• M9: 3,551,902 km (0.098 R)
• M10: 4,180,662 km (0.064 R)
• M11: 4,521,895 km (0.068 R)
• M12: 4,779,054 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.8

Radius: 9.5

Gravity: 7.81 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 2.55 AU - 2.99 AU

Year: 3024 Days

Day: 6.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,996,620 km

• M1: 118,631 km (0.09 R)
• M2: 508,184 km (0.091 R)
• M3: 977,921 km (0.048 R)
• M4: 1,365,230 km (0.094 R)
• M5: 1,690,606 km (0.101 R)
• M6: 2,016,131 km (0.057 R)
• M7: 3,310,002 km (0.039 R)
• M8: 3,609,198 km (0.066 R)
• M9: 4,481,803 km (0.101 R)
• M10: 5,463,165 km (0.084 R)
• M11: 6,045,848 km (0.087 R)
• M12: 9,599,695 km (0.11 R)
• M13: 10,647,928 km (0.108 R)
• M14: 15,716,453 km (0.112 R)
• M15: 20,465,138 km (0.106 R)
• M16: 21,222,552 km (0.028 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 808.5

Radius: 6.7

Gravity: 18.01 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 5.67 AU - 7.11 AU

Year: 10596 Days

Day: 15.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 61,996,620 km

• M1: 83,625 km (0.113 R)
• M2: 416,181 km (0.069 R)
• M3: 731,234 km (0.067 R)
• M4: 1,095,206 km (0.105 R)
• M5: 1,446,611 km (0.115 R)
• M6: 2,024,358 km (0.07 R)
• M7: 2,317,869 km (0.053 R)
• M8: 3,549,509 km (0.112 R)
• M9: 4,746,890 km (0.108 R)
• M10: 5,200,022 km (0.099 R)
• M11: 6,305,700 km (0.097 R)
• M12: 8,314,949 km (0.111 R)
• M13: 9,315,011 km (0.076 R)
• M14: 11,956,460 km (0.117 R)
• M15: 13,928,160 km (0.085 R)
• M16: 14,254,732 km (0.099 R)
• M17: 14,586,391 km (0.067 R)
• M18: 15,542,321 km (0.04 R)
• M19: 16,685,249 km (0.094 R)
• M20: 18,268,892 km (0.06 R)
• M21: 25,029,220 km (0.084 R)
• M22: 29,386,557 km (0.117 R)
• M23: 35,420,138 km (0.092 R)
• M24: 38,404,915 km (0.088 R)
• M25: 39,176,391 km (0.118 R)
• M26: 43,744,961 km (0.045 R)
• M27: 46,301,439 km (0.057 R)
• M28: 47,028,933 km (0.117 R)
• M29: 48,060,111 km (0.092 R)
• M30: 49,407,988 km (0.11 R)
• M31: 51,399,136 km (0.041 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 680.3

Radius: 3

Gravity: 75.59 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 7.78 AU - 8.16 AU

Year: 14760 Days

Day: 21 Hours

Environment

Temp: -225 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 61,996,620 km

• M1: 37,549 km (0.098 R)
• M2: 183,108 km (0.05 R)
• M3: 423,212 km (0.111 R)
• M4: 1,028,785 km (0.083 R)
• M5: 1,726,958 km (0.109 R)
• M6: 2,029,744 km (0.071 R)
• M7: 2,345,844 km (0.113 R)
• M8: 2,809,298 km (0.109 R)
• M9: 2,976,549 km (0.116 R)
• M10: 4,827,374 km (0.03 R)
• M11: 5,208,100 km (0.073 R)
• M12: 5,387,618 km (0.08 R)
• M13: 6,307,196 km (0.116 R)
• M14: 9,525,196 km (0.094 R)
• M15: 10,860,207 km (0.113 R)
• M16: 12,957,569 km (0.077 R)
• M17: 16,818,391 km (0.073 R)
• M18: 21,107,661 km (0.113 R)
• M19: 24,639,218 km (0.099 R)
• M20: 29,102,321 km (0.115 R)
• M21: 54,342,623 km (0.085 R)
• M22: 56,936,351 km (0.092 R)
• M23: 61,071,835 km (0.027 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 439 - 14,658 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit