🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.6

Radius: 12.9

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.52 AU - 0.66 AU

Year: 307 Days

Day: 12.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,918,672 km

• M1: 160,369 km (0.081 R)
• M2: 569,968 km (0.088 R)
• M3: 1,079,349 km (0.119 R)
• M4: 1,802,654 km (0.106 R)
• M5: 2,433,509 km (0.056 R)
• M6: 2,889,932 km (0.088 R)
• M7: 3,425,941 km (0.095 R)
• M8: 4,508,281 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 516.2

Radius: 14.8

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.5 AU - 0.78 AU

Year: 347 Days

Day: 13.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,918,672 km

• M1: 184,604 km (0.1 R)
• M2: 671,096 km (0.073 R)
• M3: 1,298,958 km (0.029 R)
• M4: 1,773,184 km (0.073 R)
• M5: 2,597,767 km (0.117 R)
• M6: 3,306,263 km (0.074 R)
• M7: 3,770,465 km (0.114 R)
• M8: 4,278,649 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.4

Radius: 9.8

Gravity: 9.79 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.55 AU - 0.87 AU

Year: 406 Days

Day: 6 Hours

Environment

Temp: -153 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,918,672 km

• M1: 121,922 km (0.058 R)
• M2: 463,005 km (0.111 R)
• M3: 778,807 km (0.082 R)
• M4: 1,098,647 km (0.082 R)
• M5: 1,414,747 km (0.118 R)
• M6: 1,738,926 km (0.067 R)
• M7: 2,087,339 km (0.079 R)
• M8: 2,662,393 km (0.08 R)
• M9: 3,094,582 km (0.059 R)
• M10: 3,461,246 km (0.112 R)
• M11: 4,059,189 km (0.029 R)
• M12: 4,679,122 km (0.094 R)
• M13: 5,562,498 km (0.044 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.6

Radius: 14.7

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.36 AU - 1.84 AU

Year: 1373 Days

Day: 5.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,918,672 km

• M1: 221,255 km (0.065 R)
• M2: 703,559 km (0.04 R)
• M3: 1,975,290 km (0.111 R)
• M4: 2,454,003 km (0.074 R)
• M5: 3,093,534 km (0.12 R)
• M6: 3,652,582 km (0.074 R)
• M7: 5,312,968 km (0.101 R)
• M8: 7,106,946 km (0.076 R)
• M9: 8,612,349 km (0.082 R)
• M10: 9,485,702 km (0.118 R)
• M11: 11,511,855 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.5

Radius: 10.8

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.03 AU - 2.13 AU

Year: 2035 Days

Day: 5.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 44,918,672 km

• M1: 134,339 km (0.111 R)
• M2: 577,897 km (0.035 R)
• M3: 1,234,631 km (0.101 R)
• M4: 1,662,032 km (0.107 R)
• M5: 2,225,717 km (0.079 R)
• M6: 2,882,751 km (0.098 R)
• M7: 3,719,003 km (0.101 R)
• M8: 4,095,990 km (0.078 R)
• M9: 4,436,624 km (0.108 R)
• M10: 5,993,639 km (0.085 R)
• M11: 7,322,367 km (0.076 R)
• M12: 8,577,493 km (0.07 R)
• M13: 9,037,207 km (0.105 R)
• M14: 9,375,747 km (0.106 R)
• M15: 10,516,282 km (0.097 R)
• M16: 11,081,761 km (0.11 R)
• M17: 11,509,312 km (0.083 R)
• M18: 13,637,043 km (0.083 R)
• M19: 15,770,308 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.2

Radius: 9.5

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.8 AU - 3.14 AU

Year: 3472 Days

Day: 11.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,918,672 km

• M1: 118,182 km (0.115 R)
• M2: 629,358 km (0.099 R)
• M3: 1,020,257 km (0.066 R)
• M4: 1,402,630 km (0.104 R)
• M5: 2,412,415 km (0.092 R)
• M6: 2,940,047 km (0.084 R)
• M7: 3,254,950 km (0.086 R)
• M8: 5,120,586 km (0.052 R)
• M9: 6,256,931 km (0.066 R)
• M10: 6,628,682 km (0.08 R)
• M11: 7,227,223 km (0.108 R)
• M12: 8,959,117 km (0.114 R)
• M13: 10,393,761 km (0.04 R)
• M14: 11,975,609 km (0.05 R)
• M15: 13,102,380 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 416.7

Radius: 4.2

Gravity: 23.62 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 6.43 AU - 6.87 AU

Year: 11631 Days

Day: 21.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 44,918,672 km

• M1: 52,359 km (0.088 R)
• M2: 229,184 km (0.107 R)
• M3: 384,915 km (0.07 R)
• M4: 761,752 km (0.114 R)
• M5: 965,056 km (0.074 R)
• M6: 1,180,776 km (0.041 R)
• M7: 1,481,468 km (0.053 R)
• M8: 1,635,404 km (0.115 R)
• M9: 1,831,228 km (0.092 R)
• M10: 1,992,344 km (0.042 R)
• M11: 2,437,249 km (0.077 R)
• M12: 3,010,657 km (0.076 R)
• M13: 3,376,274 km (0.116 R)
• M14: 3,979,303 km (0.1 R)
• M15: 4,891,102 km (0.109 R)
• M16: 6,507,507 km (0.11 R)
• M17: 7,598,674 km (0.115 R)
• M18: 15,114,022 km (0.064 R)
• M19: 15,840,619 km (0.059 R)
• M20: 15,975,108 km (0.061 R)
• M21: 16,798,494 km (0.086 R)
• M22: 16,938,518 km (0.072 R)
• M23: 23,457,245 km (0.112 R)
• M24: 24,790,162 km (0.07 R)
• M25: 27,605,893 km (0.072 R)
• M26: 28,292,249 km (0.084 R)
• M27: 29,801,093 km (0.038 R)
• M28: 31,151,662 km (0.088 R)
• M29: 34,875,452 km (0.035 R)
• M30: 38,763,052 km (0.063 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 - 12,771 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit