🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 492.7

Radius: 9.1

Gravity: 5.95 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.47 AU - 0.61 AU

Year: 265 Days

Day: 8.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,156,153 km

• M1: 113,246 km (0.049 R)
• M2: 403,316 km (0.09 R)
• M3: 865,424 km (0.054 R)
• M4: 1,211,294 km (0.047 R)
• M5: 1,546,842 km (0.053 R)
• M6: 1,993,691 km (0.082 R)
• M7: 2,385,787 km (0.04 R)
• M8: 2,828,896 km (0.114 R)
• M9: 3,356,527 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181

Radius: 8.2

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.85 AU - 0.93 AU

Year: 560 Days

Day: 5.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,156,153 km

• M1: 102,026 km (0.091 R)
• M2: 513,719 km (0.101 R)
• M3: 987,346 km (0.095 R)
• M4: 1,255,276 km (0.11 R)
• M5: 1,630,617 km (0.061 R)
• M6: 1,943,276 km (0.066 R)
• M7: 2,405,683 km (0.042 R)
• M8: 2,890,680 km (0.119 R)
• M9: 3,862,318 km (0.095 R)
• M10: 4,423,011 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.7

Radius: 12.7

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.71 AU - 1.19 AU

Year: 617 Days

Day: 7.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,156,153 km

• M1: 157,975 km (0.09 R)
• M2: 792,121 km (0.073 R)
• M3: 1,200,822 km (0.091 R)
• M4: 1,726,060 km (0.106 R)
• M5: 2,276,132 km (0.083 R)
• M6: 3,368,346 km (0.113 R)
• M7: 4,072,802 km (0.033 R)
• M8: 4,708,443 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656

Radius: 12.6

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.76 AU - 1.24 AU

Year: 667 Days

Day: 10.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,156,153 km

• M1: 156,779 km (0.043 R)
• M2: 591,061 km (0.057 R)
• M3: 1,030,580 km (0.101 R)
• M4: 1,649,765 km (0.061 R)
• M5: 2,105,889 km (0.066 R)
• M6: 2,690,368 km (0.111 R)
• M7: 3,632,236 km (0.043 R)
• M8: 4,247,532 km (0.035 R)
• M9: 4,652,643 km (0.082 R)
• M10: 5,706,411 km (0.08 R)
• M11: 6,299,866 km (0.115 R)
• M12: 6,976,497 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414

Radius: 11.7

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.91 AU - 1.11 AU

Year: 677 Days

Day: 14.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 55,156,153 km

• M1: 145,559 km (0.105 R)
• M2: 691,292 km (0.036 R)
• M3: 1,450,501 km (0.073 R)
• M4: 2,188,916 km (0.093 R)
• M5: 2,572,934 km (0.076 R)
• M6: 3,059,276 km (0.04 R)
• M7: 4,175,576 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 570

Radius: 9.7

Gravity: 6.06 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.26 AU - 1.44 AU

Year: 1046 Days

Day: 5.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,156,153 km

• M1: 121,473 km (0.111 R)
• M2: 585,825 km (0.076 R)
• M3: 895,942 km (0.051 R)
• M4: 1,200,523 km (0.116 R)
• M5: 1,527,095 km (0.036 R)
• M6: 1,942,229 km (0.118 R)
• M7: 3,068,103 km (0.11 R)
• M8: 3,585,412 km (0.107 R)
• M9: 6,410,119 km (0.096 R)
• M10: 6,859,062 km (0.091 R)
• M11: 7,353,184 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.5

Radius: 11.8

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 2.28 AU - 3.7 AU

Year: 3448 Days

Day: 8.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,156,153 km

• M1: 169,046 km (0.094 R)
• M2: 798,853 km (0.065 R)
• M3: 1,977,085 km (0.117 R)
• M4: 2,620,655 km (0.05 R)
• M5: 3,001,083 km (0.112 R)
• M6: 3,937,416 km (0.119 R)
• M7: 4,531,469 km (0.078 R)
• M8: 5,789,587 km (0.073 R)
• M9: 6,266,505 km (0.119 R)
• M10: 6,830,639 km (0.072 R)
• M11: 7,857,329 km (0.102 R)
• M12: 8,267,826 km (0.087 R)
• M13: 9,702,170 km (0.078 R)
• M14: 12,088,256 km (0.099 R)
• M15: 16,008,169 km (0.072 R)
• M16: 18,764,360 km (0.088 R)
• M17: 20,446,439 km (0.107 R)
• M18: 22,024,247 km (0.112 R)
• M19: 22,499,221 km (0.083 R)
• M20: 23,050,638 km (0.113 R)

Asteroid Belt

Center: 4.57 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 51.3

Radius: 7.9

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 5.85 AU - 6.45 AU

Year: 10170 Days

Day: 22.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,156,153 km

• M1: 98,435 km (0.099 R)
• M2: 427,551 km (0.055 R)
• M3: 704,008 km (0.066 R)
• M4: 985,102 km (0.101 R)
• M5: 1,231,789 km (0.104 R)
• M6: 1,594,115 km (0.073 R)
• M7: 3,194,663 km (0.06 R)
• M8: 4,190,236 km (0.102 R)
• M9: 6,352,225 km (0.106 R)
• M10: 6,895,265 km (0.098 R)
• M11: 7,468,973 km (0.115 R)
• M12: 8,008,872 km (0.036 R)
• M13: 8,439,115 km (0.079 R)
• M14: 10,086,188 km (0.12 R)
• M15: 17,259,106 km (0.04 R)
• M16: 17,698,625 km (0.058 R)
• M17: 18,485,809 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 516.1

Radius: 5.9

Gravity: 14.83 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 7.03 AU - 8.35 AU

Year: 14221 Days

Day: 18.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 55,156,153 km

• M1: 101,577 km (0.087 R)
• M2: 400,025 km (0.099 R)
• M3: 1,110,166 km (0.056 R)
• M4: 2,414,809 km (0.073 R)
• M5: 2,643,245 km (0.101 R)
• M6: 5,059,400 km (0.104 R)
• M7: 6,835,576 km (0.112 R)
• M8: 7,251,906 km (0.118 R)
• M9: 8,990,084 km (0.116 R)
• M10: 9,746,750 km (0.092 R)
• M11: 11,617,920 km (0.05 R)
• M12: 14,177,241 km (0.087 R)
• M13: 15,552,195 km (0.062 R)
• M14: 16,863,719 km (0.096 R)
• M15: 19,704,882 km (0.08 R)
• M16: 23,873,576 km (0.118 R)
• M17: 24,348,998 km (0.044 R)
• M18: 25,220,406 km (0.097 R)
• M19: 26,112,608 km (0.058 R)
• M20: 34,622,482 km (0.082 R)
• M21: 38,905,021 km (0.08 R)
• M22: 41,309,058 km (0.117 R)
• M23: 43,952,154 km (0.115 R)
• M24: 47,002,305 km (0.116 R)
• M25: 49,726,631 km (0.073 R)
• M26: 52,394,410 km (0.074 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 430 - 11,552 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit