🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.8

Radius: 11.5

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.63 AU - 0.75 AU

Year: 396 Days

Day: 7.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,169,731 km

• M1: 143,165 km (0.078 R)
• M2: 531,970 km (0.099 R)
• M3: 1,239,867 km (0.041 R)
• M4: 1,740,571 km (0.12 R)
• M5: 2,227,811 km (0.107 R)
• M6: 2,602,255 km (0.069 R)
• M7: 3,103,408 km (0.103 R)
• M8: 3,526,770 km (0.066 R)
• M9: 4,103,918 km (0.06 R)
• M10: 4,858,490 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.3

Radius: 8.4

Gravity: 11.48 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.64 AU - 0.86 AU

Year: 448 Days

Day: 13.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 60,169,731 km

• M1: 104,419 km (0.12 R)
• M2: 428,448 km (0.11 R)
• M3: 934,388 km (0.066 R)
• M4: 1,300,903 km (0.066 R)
• M5: 1,648,269 km (0.063 R)
• M6: 2,127,282 km (0.114 R)
• M7: 2,404,786 km (0.107 R)
• M8: 2,685,731 km (0.113 R)
• M9: 3,523,778 km (0.081 R)
• M10: 4,135,334 km (0.049 R)
• M11: 4,407,752 km (0.057 R)
• M12: 5,117,594 km (0.102 R)
• M13: 5,620,242 km (0.033 R)
• M14: 5,937,390 km (0.068 R)
• M15: 6,229,255 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 360.4

Radius: 9.9

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.32 AU - 1.72 AU

Year: 1294 Days

Day: 5.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,169,731 km

• M1: 124,765 km (0.113 R)
• M2: 667,954 km (0.111 R)
• M3: 1,273,078 km (0.105 R)
• M4: 1,731,595 km (0.06 R)
• M5: 2,059,963 km (0.096 R)
• M6: 2,385,637 km (0.107 R)
• M7: 3,196,458 km (0.093 R)
• M8: 3,832,398 km (0.118 R)
• M9: 4,329,662 km (0.116 R)
• M10: 4,690,492 km (0.102 R)
• M11: 5,221,863 km (0.117 R)
• M12: 5,793,028 km (0.105 R)
• M13: 6,189,462 km (0.106 R)
• M14: 8,319,287 km (0.113 R)
• M15: 8,879,232 km (0.077 R)
• M16: 9,378,889 km (0.086 R)
• M17: 9,780,410 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.3

Radius: 15

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.31 AU - 2.05 AU

Year: 1503 Days

Day: 5.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,169,731 km

• M1: 186,549 km (0.053 R)
• M2: 661,522 km (0.1 R)
• M3: 1,314,516 km (0.099 R)
• M4: 1,884,036 km (0.095 R)
• M5: 2,466,121 km (0.113 R)
• M6: 3,054,639 km (0.077 R)
• M7: 3,941,156 km (0.09 R)
• M8: 4,421,515 km (0.101 R)
• M9: 5,691,601 km (0.084 R)
• M10: 6,329,336 km (0.119 R)
• M11: 7,329,548 km (0.061 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.4

Radius: 11.5

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.94 AU - 3.7 AU

Year: 4176 Days

Day: 10.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,169,731 km

• M1: 143,016 km (0.101 R)
• M2: 826,528 km (0.12 R)
• M3: 1,388,867 km (0.098 R)
• M4: 2,146,430 km (0.074 R)
• M5: 2,634,119 km (0.051 R)
• M6: 3,145,295 km (0.072 R)
• M7: 4,286,278 km (0.066 R)
• M8: 5,042,495 km (0.1 R)
• M9: 5,416,789 km (0.079 R)
• M10: 5,809,783 km (0.083 R)
• M11: 6,764,217 km (0.108 R)
• M12: 8,100,575 km (0.067 R)
• M13: 9,256,219 km (0.119 R)
• M14: 12,056,691 km (0.114 R)
• M15: 13,075,003 km (0.03 R)
• M16: 13,515,719 km (0.025 R)
• M17: 16,474,316 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336.5

Radius: 13.5

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.41 AU - 3.91 AU

Year: 4833 Days

Day: 13.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 60,169,731 km

• M1: 167,998 km (0.072 R)
• M2: 617,989 km (0.12 R)
• M3: 1,076,805 km (0.077 R)
• M4: 1,905,727 km (0.046 R)
• M5: 2,346,143 km (0.072 R)
• M6: 3,253,454 km (0.112 R)
• M7: 4,036,300 km (0.116 R)
• M8: 4,472,976 km (0.089 R)
• M9: 4,941,367 km (0.12 R)
• M10: 7,029,903 km (0.079 R)
• M11: 7,797,639 km (0.1 R)
• M12: 8,444,501 km (0.082 R)
• M13: 9,237,968 km (0.11 R)
• M14: 9,807,038 km (0.108 R)
• M15: 11,787,115 km (0.085 R)
• M16: 14,021,509 km (0.081 R)
• M17: 14,469,854 km (0.115 R)
• M18: 17,308,474 km (0.108 R)
• M19: 18,768,549 km (0.088 R)
• M20: 20,309,257 km (0.028 R)
• M21: 20,948,639 km (0.081 R)
• M22: 21,932,843 km (0.072 R)
• M23: 22,537,966 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.2

Radius: 8.8

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 3.24 AU - 5.18 AU

Year: 5963 Days

Day: 7.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,169,731 km

• M1: 109,506 km (0.105 R)
• M2: 473,627 km (0.072 R)
• M3: 761,603 km (0.088 R)
• M4: 1,297,762 km (0.09 R)
• M5: 2,096,764 km (0.07 R)
• M6: 4,531,170 km (0.114 R)
• M7: 5,462,865 km (0.104 R)
• M8: 6,424,331 km (0.104 R)
• M9: 6,864,897 km (0.104 R)
• M10: 7,392,678 km (0.07 R)
• M11: 8,381,370 km (0.118 R)
• M12: 10,793,038 km (0.096 R)
• M13: 12,443,401 km (0.085 R)
• M14: 15,951,322 km (0.111 R)
• M15: 17,293,364 km (0.045 R)
• M16: 20,468,280 km (0.103 R)
• M17: 22,334,663 km (0.113 R)
• M18: 22,620,544 km (0.086 R)
• M19: 23,053,929 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.6

Radius: 10.7

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 3.19 AU - 5.29 AU

Year: 6026 Days

Day: 12.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,169,731 km

• M1: 133,441 km (0.107 R)
• M2: 521,349 km (0.062 R)
• M3: 903,122 km (0.118 R)
• M4: 1,390,363 km (0.116 R)
• M5: 1,763,460 km (0.099 R)
• M6: 2,311,287 km (0.085 R)
• M7: 3,451,223 km (0.083 R)
• M8: 3,865,609 km (0.094 R)
• M9: 4,794,911 km (0.112 R)
• M10: 5,287,986 km (0.091 R)
• M11: 6,915,311 km (0.078 R)
• M12: 10,191,953 km (0.117 R)
• M13: 12,381,169 km (0.116 R)
• M14: 14,527,300 km (0.092 R)
• M15: 15,713,760 km (0.045 R)
• M16: 17,613,205 km (0.103 R)
• M17: 18,167,016 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 386.4

Radius: 7.2

Gravity: 7.45 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 6.58 AU - 7.68 AU

Year: 13142 Days

Day: 20.8 Hours

Environment

Temp: -239 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,169,731 km

• M1: 89,908 km (0.111 R)
• M2: 384,915 km (0.109 R)
• M3: 615,446 km (0.105 R)
• M4: 1,043,894 km (0.04 R)
• M5: 2,037,074 km (0.036 R)
• M6: 4,705,900 km (0.093 R)
• M7: 6,053,627 km (0.084 R)
• M8: 8,598,287 km (0.083 R)
• M9: 9,152,996 km (0.105 R)
• M10: 18,088,327 km (0.117 R)
• M11: 18,691,506 km (0.076 R)
• M12: 20,017,990 km (0.079 R)
• M13: 22,337,505 km (0.112 R)
• M14: 22,596,160 km (0.104 R)
• M15: 25,858,590 km (0.102 R)
• M16: 33,524,135 km (0.107 R)
• M17: 37,140,963 km (0.102 R)
• M18: 41,397,770 km (0.078 R)
• M19: 47,232,685 km (0.098 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 474.7

Radius: 3.8

Gravity: 32.87 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 6.79 AU - 10.07 AU

Year: 16895 Days

Day: 23.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 60,169,731 km

• M1: 47,273 km (0.112 R)
• M2: 188,643 km (0.082 R)
• M3: 899,382 km (0.087 R)
• M4: 1,140,983 km (0.093 R)
• M5: 1,325,138 km (0.099 R)
• M6: 1,638,246 km (0.039 R)
• M7: 2,603,003 km (0.099 R)
• M8: 3,752,663 km (0.081 R)
• M9: 4,190,984 km (0.111 R)
• M10: 5,168,756 km (0.089 R)
• M11: 5,453,142 km (0.116 R)
• M12: 5,710,600 km (0.102 R)
• M13: 6,531,443 km (0.115 R)
• M14: 7,882,611 km (0.093 R)
• M15: 8,355,490 km (0.104 R)
• M16: 10,662,439 km (0.098 R)
• M17: 15,587,350 km (0.059 R)
• M18: 15,734,255 km (0.115 R)
• M19: 16,788,023 km (0.11 R)
• M20: 17,569,073 km (0.099 R)
• M21: 24,608,401 km (0.119 R)
• M22: 25,108,207 km (0.091 R)
• M23: 28,578,429 km (0.046 R)
• M24: 34,798,559 km (0.094 R)
• M25: 36,969,972 km (0.05 R)
• M26: 38,959,474 km (0.058 R)
• M27: 42,861,735 km (0.05 R)
• M28: 47,477,278 km (0.114 R)
• M29: 50,303,481 km (0.074 R)
• M30: 55,601,041 km (0.118 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 486 - 14,163 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit