🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.7

Radius: 12.3

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.84 AU - 0.94 AU

Year: 569 Days

Day: 7.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 58,711,820 km

• M1: 153,338 km (0.07 R)
• M2: 620,682 km (0.061 R)
• M3: 1,010,384 km (0.092 R)
• M4: 1,476,232 km (0.093 R)
• M5: 2,403,290 km (0.111 R)
• M6: 3,160,704 km (0.109 R)
• M7: 5,053,566 km (0.089 R)
• M8: 5,464,361 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 866.3

Radius: 11.3

Gravity: 6.78 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.43 AU - 2.01 AU

Year: 1530 Days

Day: 7.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,711,820 km

• M1: 140,472 km (0.076 R)
• M2: 513,719 km (0.111 R)
• M3: 915,090 km (0.061 R)
• M4: 1,391,709 km (0.075 R)
• M5: 1,816,118 km (0.052 R)
• M6: 2,265,809 km (0.075 R)
• M7: 3,006,169 km (0.118 R)
• M8: 3,778,244 km (0.033 R)
• M9: 4,498,857 km (0.065 R)
• M10: 5,092,461 km (0.079 R)
• M11: 6,587,991 km (0.103 R)
• M12: 7,003,873 km (0.117 R)
• M13: 8,268,424 km (0.077 R)
• M14: 9,979,973 km (0.1 R)
• M15: 10,494,739 km (0.112 R)
• M16: 11,135,766 km (0.096 R)
• M17: 12,535,404 km (0.068 R)
• M18: 13,380,183 km (0.101 R)
• M19: 13,837,653 km (0.088 R)
• M20: 14,262,511 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 587.3

Radius: 13.3

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.04 AU - 2.82 AU

Year: 2569 Days

Day: 7.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 58,711,820 km

• M1: 165,455 km (0.104 R)
• M2: 643,121 km (0.074 R)
• M3: 1,166,115 km (0.12 R)
• M4: 1,656,198 km (0.119 R)
• M5: 2,207,616 km (0.116 R)
• M6: 2,774,442 km (0.072 R)
• M7: 3,249,565 km (0.038 R)
• M8: 4,325,473 km (0.117 R)
• M9: 4,901,574 km (0.114 R)
• M10: 5,976,136 km (0.106 R)
• M11: 7,289,306 km (0.093 R)
• M12: 8,720,658 km (0.05 R)
• M13: 9,433,193 km (0.066 R)
• M14: 13,022,345 km (0.085 R)
• M15: 14,182,477 km (0.104 R)
• M16: 15,072,883 km (0.068 R)
• M17: 16,000,240 km (0.089 R)
• M18: 17,861,387 km (0.051 R)
• M19: 18,348,478 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.9

Radius: 10.8

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 2.01 AU - 2.99 AU

Year: 2681 Days

Day: 9.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,711,820 km

• M1: 134,339 km (0.107 R)
• M2: 1,231,639 km (0.081 R)
• M3: 2,271,045 km (0.105 R)
• M4: 3,875,034 km (0.081 R)
• M5: 4,675,532 km (0.078 R)
• M6: 5,631,163 km (0.109 R)
• M7: 6,390,073 km (0.102 R)
• M8: 7,477,051 km (0.094 R)
• M9: 9,418,383 km (0.108 R)
• M10: 12,780,296 km (0.118 R)
• M11: 13,775,870 km (0.062 R)
• M12: 16,717,113 km (0.11 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 358.3

Radius: 3.3

Gravity: 32.9 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 4.87 AU - 7.03 AU

Year: 9844 Days

Day: 17.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 58,711,820 km

• M1: 43,832 km (0.11 R)
• M2: 157,377 km (0.097 R)
• M3: 311,313 km (0.072 R)
• M4: 623,374 km (0.083 R)
• M5: 743,501 km (0.037 R)
• M6: 1,222,963 km (0.104 R)
• M7: 2,466,121 km (0.055 R)
• M8: 2,595,972 km (0.111 R)
• M9: 3,405,147 km (0.108 R)
• M10: 3,566,413 km (0.083 R)
• M11: 4,158,372 km (0.054 R)
• M12: 4,699,468 km (0.111 R)
• M13: 5,756,825 km (0.061 R)
• M14: 9,862,389 km (0.09 R)
• M15: 10,285,153 km (0.108 R)
• M16: 10,818,320 km (0.064 R)
• M17: 11,318,724 km (0.116 R)
• M18: 12,473,620 km (0.093 R)
• M19: 13,023,691 km (0.084 R)
• M20: 13,248,088 km (0.115 R)
• M21: 14,529,244 km (0.084 R)
• M22: 15,636,867 km (0.076 R)
• M23: 17,537,957 km (0.101 R)
• M24: 20,555,944 km (0.097 R)
• M25: 20,783,782 km (0.053 R)
• M26: 23,238,832 km (0.065 R)
• M27: 26,146,117 km (0.099 R)
• M28: 32,876,077 km (0.114 R)
• M29: 35,534,281 km (0.058 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 279.9

Radius: 5.2

Gravity: 10.35 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 8.32 AU - 9.04 AU

Year: 17345 Days

Day: 21.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 58,711,820 km

• M1: 64,626 km (0.076 R)
• M2: 303,534 km (0.106 R)
• M3: 581,487 km (0.071 R)
• M4: 1,302,549 km (0.039 R)
• M5: 4,085,368 km (0.086 R)
• M6: 4,645,014 km (0.108 R)
• M7: 4,927,305 km (0.068 R)
• M8: 5,560,702 km (0.06 R)
• M9: 8,366,261 km (0.111 R)
• M10: 9,022,547 km (0.107 R)
• M11: 11,141,750 km (0.11 R)
• M12: 12,168,889 km (0.115 R)
• M13: 15,077,969 km (0.098 R)
• M14: 16,475,812 km (0.071 R)
• M15: 27,117,008 km (0.113 R)
• M16: 28,443,941 km (0.089 R)
• M17: 30,135,593 km (0.097 R)
• M18: 34,537,960 km (0.079 R)
• M19: 38,076,248 km (0.117 R)
• M20: 43,756,031 km (0.07 R)
• M21: 47,889,570 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 348

Radius: 7.4

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 9.05 AU - 9.41 AU

Year: 19019 Days

Day: 15.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,711,820 km

• M1: 93,050 km (0.088 R)
• M2: 369,956 km (0.112 R)
• M3: 1,434,793 km (0.064 R)
• M4: 6,779,626 km (0.083 R)
• M5: 7,419,456 km (0.089 R)
• M6: 7,867,950 km (0.103 R)
• M7: 8,868,611 km (0.119 R)
• M8: 10,167,569 km (0.088 R)
• M9: 13,727,549 km (0.113 R)
• M10: 15,675,912 km (0.086 R)
• M11: 18,281,159 km (0.078 R)
• M12: 25,120,175 km (0.108 R)
• M13: 32,650,184 km (0.1 R)
• M14: 33,852,951 km (0.058 R)
• M15: 38,693,340 km (0.111 R)
• M16: 42,825,831 km (0.114 R)
• M17: 54,424,304 km (0.08 R)
• M18: 55,602,985 km (0.101 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: 517 - 13,031 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit