🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.6

Radius: 14.4

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.49 AU - 0.53 AU

Year: 256 Days

Day: 9.6 Hours

Environment

Temp: -133 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 62,391,387 km

• M1: 179,069 km (0.093 R)
• M2: 639,232 km (0.11 R)
• M3: 1,223,561 km (0.105 R)
• M4: 1,706,313 km (0.06 R)
• M5: 2,412,415 km (0.1 R)
• M6: 2,905,639 km (0.036 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.9

Radius: 14

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.5 AU - 0.84 AU

Year: 385 Days

Day: 7.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 176.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 62,391,387 km

• M1: 174,132 km (0.09 R)
• M2: 739,313 km (0.088 R)
• M3: 1,174,792 km (0.108 R)
• M4: 1,869,824 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189

Radius: 8.9

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.59 AU - 0.79 AU

Year: 403 Days

Day: 11.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 62,391,387 km

• M1: 110,702 km (0.081 R)
• M2: 585,227 km (0.074 R)
• M3: 946,057 km (0.115 R)
• M4: 1,304,643 km (0.12 R)
• M5: 1,647,372 km (0.111 R)
• M6: 2,137,006 km (0.096 R)
• M7: 3,017,838 km (0.103 R)
• M8: 3,478,599 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.6

Radius: 10.7

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.64 AU - 0.84 AU

Year: 447 Days

Day: 7.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 62,391,387 km

• M1: 133,142 km (0.113 R)
• M2: 498,011 km (0.105 R)
• M3: 832,213 km (0.093 R)
• M4: 1,347,877 km (0.075 R)
• M5: 2,484,073 km (0.116 R)
• M6: 2,819,172 km (0.076 R)
• M7: 3,637,771 km (0.049 R)
• M8: 4,023,734 km (0.046 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.9

Radius: 13.9

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.85 AU - 1.03 AU

Year: 641 Days

Day: 7.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,391,387 km

• M1: 173,234 km (0.1 R)
• M2: 705,952 km (0.058 R)
• M3: 1,279,810 km (0.034 R)
• M4: 2,023,162 km (0.087 R)
• M5: 2,545,557 km (0.103 R)
• M6: 3,707,035 km (0.104 R)
• M7: 4,513,368 km (0.119 R)
• M8: 5,660,335 km (0.095 R)
• M9: 6,553,733 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.5

Radius: 11.7

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.36 AU - 5.12 AU

Year: 6137 Days

Day: 12.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 62,391,387 km

• M1: 146,456 km (0.116 R)
• M2: 753,973 km (0.105 R)
• M3: 1,508,844 km (0.116 R)
• M4: 1,985,463 km (0.116 R)
• M5: 2,665,684 km (0.026 R)
• M6: 3,168,333 km (0.07 R)
• M7: 3,778,244 km (0.116 R)
• M8: 5,694,144 km (0.105 R)
• M9: 6,088,035 km (0.065 R)
• M10: 9,379,637 km (0.059 R)
• M11: 13,651,853 km (0.062 R)
• M12: 15,615,923 km (0.109 R)
• M13: 16,030,309 km (0.067 R)
• M14: 17,954,437 km (0.114 R)
• M15: 21,666,110 km (0.032 R)
• M16: 22,706,114 km (0.119 R)
• M17: 26,525,049 km (0.085 R)
• M18: 28,586,508 km (0.115 R)
• M19: 29,746,639 km (0.105 R)
• M20: 30,475,929 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 562.7

Radius: 3.6

Gravity: 43.42 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 6.55 AU - 9.77 AU

Year: 16385 Days

Day: 22.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 62,391,387 km

• M1: 45,328 km (0.11 R)
• M2: 181,761 km (0.089 R)
• M3: 300,093 km (0.095 R)
• M4: 597,793 km (0.114 R)
• M5: 1,140,534 km (0.042 R)
• M6: 1,974,991 km (0.074 R)
• M7: 2,285,257 km (0.105 R)
• M8: 2,740,932 km (0.057 R)
• M9: 2,857,768 km (0.071 R)
• M10: 3,126,595 km (0.035 R)
• M11: 4,125,460 km (0.089 R)
• M12: 4,730,135 km (0.083 R)
• M13: 7,931,978 km (0.099 R)
• M14: 8,560,738 km (0.105 R)
• M15: 8,710,486 km (0.092 R)
• M16: 8,963,755 km (0.097 R)
• M17: 9,971,596 km (0.086 R)
• M18: 10,361,149 km (0.077 R)
• M19: 11,052,590 km (0.068 R)
• M20: 11,170,772 km (0.1 R)
• M21: 15,412,769 km (0.096 R)
• M22: 16,388,596 km (0.117 R)
• M23: 17,887,866 km (0.107 R)
• M24: 20,260,189 km (0.076 R)
• M25: 20,794,553 km (0.115 R)
• M26: 21,429,596 km (0.101 R)
• M27: 22,929,763 km (0.069 R)
• M28: 25,928,602 km (0.063 R)
• M29: 28,066,805 km (0.05 R)
• M30: 42,822,540 km (0.071 R)
• M31: 43,997,183 km (0.12 R)
• M32: 46,257,158 km (0.087 R)
• M33: 47,649,615 km (0.081 R)
• M34: 54,007,225 km (0.114 R)
• M35: 59,809,378 km (0.066 R)
• M36: 60,173,799 km (0.108 R)
• M37: 60,539,566 km (0.052 R)
• M38: 62,204,590 km (0.11 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 271 - 18,417 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit