🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.7

Radius: 9.8

Gravity: 8.36 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.49 AU - 0.63 AU

Year: 279 Days

Day: 10.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,698,324 km

• M1: 121,922 km (0.095 R)
• M2: 448,195 km (0.116 R)
• M3: 796,609 km (0.049 R)
• M4: 1,120,488 km (0.102 R)
• M5: 1,491,042 km (0.061 R)
• M6: 2,166,626 km (0.108 R)
• M7: 2,602,255 km (0.069 R)
• M8: 2,984,328 km (0.115 R)
• M9: 3,458,703 km (0.104 R)
• M10: 4,093,895 km (0.098 R)
• M11: 4,599,536 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341.6

Radius: 14.7

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.63 AU - 0.93 AU

Year: 459 Days

Day: 10.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,698,324 km

• M1: 184,454 km (0.111 R)
• M2: 645,515 km (0.112 R)
• M3: 1,247,945 km (0.099 R)
• M4: 1,711,100 km (0.078 R)
• M5: 2,178,444 km (0.118 R)
• M6: 2,695,305 km (0.089 R)
• M7: 3,435,665 km (0.059 R)
• M8: 4,321,733 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574

Radius: 9.7

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.82 AU - 0.84 AU

Year: 504 Days

Day: 11.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,698,324 km

• M1: 120,875 km (0.104 R)
• M2: 686,505 km (0.085 R)
• M3: 1,062,294 km (0.112 R)
• M4: 1,493,286 km (0.112 R)
• M5: 1,980,526 km (0.089 R)
• M6: 2,531,645 km (0.031 R)
• M7: 3,730,522 km (0.075 R)
• M8: 5,079,596 km (0.074 R)
• M9: 5,777,470 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.5

Radius: 10.3

Gravity: 8.87 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.87 AU - 1.87 AU

Year: 1705 Days

Day: 5.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 37,698,324 km

• M1: 128,205 km (0.114 R)
• M2: 462,557 km (0.097 R)
• M3: 1,137,841 km (0.069 R)
• M4: 1,475,783 km (0.068 R)
• M5: 3,060,772 km (0.111 R)
• M6: 3,433,720 km (0.117 R)
• M7: 4,155,380 km (0.098 R)
• M8: 4,802,840 km (0.08 R)
• M9: 5,218,423 km (0.109 R)
• M10: 5,825,790 km (0.041 R)
• M11: 6,197,241 km (0.12 R)
• M12: 7,697,110 km (0.085 R)
• M13: 8,360,127 km (0.083 R)
• M14: 9,731,341 km (0.045 R)
• M15: 10,078,857 km (0.118 R)
• M16: 10,579,262 km (0.056 R)
• M17: 10,909,574 km (0.085 R)
• M18: 11,475,653 km (0.113 R)
• M19: 12,584,472 km (0.079 R)
• M20: 13,504,798 km (0.072 R)
• M21: 14,290,636 km (0.083 R)
• M22: 15,620,411 km (0.095 R)
• M23: 16,049,308 km (0.09 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 176

Radius: 5

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 5.29 AU - 8.21 AU

Year: 11695 Days

Day: 17 Hours

Environment

Temp: -227 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 37,698,324 km

• M1: 63,130 km (0.087 R)
• M2: 392,994 km (0.025 R)
• M3: 764,296 km (0.107 R)
• M4: 937,829 km (0.1 R)
• M5: 1,264,551 km (0.074 R)
• M6: 1,786,199 km (0.068 R)
• M7: 3,057,481 km (0.119 R)
• M8: 3,391,533 km (0.057 R)
• M9: 4,646,959 km (0.094 R)
• M10: 4,892,000 km (0.027 R)
• M11: 5,991,395 km (0.08 R)
• M12: 7,173,966 km (0.105 R)
• M13: 8,265,432 km (0.084 R)
• M14: 8,424,155 km (0.096 R)
• M15: 11,892,582 km (0.108 R)
• M16: 12,769,225 km (0.093 R)
• M17: 13,467,997 km (0.085 R)
• M18: 15,717,201 km (0.086 R)
• M19: 16,207,733 km (0.054 R)
• M20: 20,216,507 km (0.07 R)
• M21: 29,009,121 km (0.066 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 652.6

Radius: 6.9

Gravity: 13.71 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 6.91 AU - 8.55 AU

Year: 14332 Days

Day: 21.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 37,698,324 km

• M1: 86,767 km (0.112 R)
• M2: 331,060 km (0.109 R)
• M3: 640,279 km (0.115 R)
• M4: 1,372,112 km (0.099 R)
• M5: 1,852,171 km (0.075 R)
• M6: 2,316,523 km (0.116 R)
• M7: 5,541,255 km (0.115 R)
• M8: 7,524,474 km (0.12 R)
• M9: 11,408,034 km (0.106 R)
• M10: 11,706,482 km (0.062 R)
• M11: 13,674,741 km (0.093 R)
• M12: 15,487,419 km (0.089 R)
• M13: 22,524,802 km (0.111 R)
• M14: 24,247,571 km (0.101 R)
• M15: 31,200,431 km (0.096 R)
• M16: 34,940,079 km (0.102 R)
• M17: 39,102,789 km (0.109 R)
• M18: 40,468,468 km (0.097 R)
• M19: 42,148,901 km (0.099 R)
• M20: 53,885,303 km (0.092 R)
• M21: 54,725,893 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 84.7

Radius: 3.6

Gravity: 6.54 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 7.39 AU - 11.81 AU

Year: 19835 Days

Day: 24.6 Hours

Environment

Temp: -242 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,698,324 km

• M1: 154,834 km (0.077 R)
• M2: 419,024 km (0.098 R)
• M3: 769,531 km (0.11 R)
• M4: 1,155,644 km (0.103 R)
• M5: 1,313,619 km (0.115 R)
• M6: 1,998,777 km (0.114 R)
• M7: 2,454,602 km (0.09 R)
• M8: 4,695,279 km (0.08 R)
• M9: 5,587,331 km (0.104 R)
• M10: 6,343,548 km (0.117 R)
• M11: 6,944,782 km (0.083 R)
• M12: 7,699,653 km (0.114 R)
• M13: 7,817,386 km (0.091 R)
• M14: 9,961,722 km (0.111 R)
• M15: 13,407,859 km (0.066 R)
• M16: 18,679,987 km (0.042 R)
• M17: 22,123,879 km (0.11 R)
• M18: 32,532,301 km (0.072 R)
• M19: 32,737,549 km (0.107 R)
• M20: 35,484,017 km (0.099 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 160 - 16,928 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit