🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.3

Radius: 12.7

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.7 AU - 0.98 AU

Year: 505 Days

Day: 7.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,709,452 km

• M1: 158,424 km (0.081 R)
• M2: 630,106 km (0.073 R)
• M3: 1,283,251 km (0.11 R)
• M4: 1,703,172 km (0.116 R)
• M5: 2,279,572 km (0.06 R)
• M6: 3,316,435 km (0.113 R)
• M7: 4,084,770 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.8

Radius: 13.8

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 2.45 AU - 3.01 AU

Year: 2959 Days

Day: 14.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 67,709,452 km

• M1: 175,329 km (0.036 R)
• M2: 753,375 km (0.109 R)
• M3: 1,346,530 km (0.105 R)
• M4: 1,928,765 km (0.069 R)
• M5: 3,078,275 km (0.115 R)
• M6: 3,631,937 km (0.057 R)
• M7: 4,401,469 km (0.057 R)
• M8: 5,326,283 km (0.059 R)
• M9: 6,293,882 km (0.077 R)
• M10: 8,543,235 km (0.093 R)
• M11: 12,172,330 km (0.079 R)
• M12: 13,150,850 km (0.09 R)
• M13: 14,814,976 km (0.075 R)
• M14: 16,191,726 km (0.108 R)
• M15: 17,101,430 km (0.068 R)
• M16: 17,819,799 km (0.043 R)
• M17: 20,279,039 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362.9

Radius: 10

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 2.61 AU - 4.11 AU

Year: 4040 Days

Day: 11.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,709,452 km

• M1: 124,465 km (0.11 R)
• M2: 553,063 km (0.113 R)
• M3: 902,524 km (0.062 R)
• M4: 1,280,707 km (0.1 R)
• M5: 2,006,407 km (0.095 R)
• M6: 2,326,247 km (0.073 R)
• M7: 5,219,919 km (0.117 R)
• M8: 5,805,295 km (0.071 R)
• M9: 6,576,472 km (0.096 R)
• M10: 7,168,132 km (0.066 R)
• M11: 8,837,793 km (0.059 R)
• M12: 9,448,003 km (0.084 R)
• M13: 10,279,169 km (0.117 R)
• M14: 10,752,646 km (0.086 R)
• M15: 12,129,994 km (0.076 R)
• M16: 12,838,639 km (0.09 R)
• M17: 14,241,568 km (0.115 R)
• M18: 16,004,279 km (0.053 R)
• M19: 17,907,912 km (0.116 R)
• M20: 18,478,479 km (0.078 R)
• M21: 19,061,013 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.6

Radius: 11.1

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 3.42 AU - 4.02 AU

Year: 4707 Days

Day: 6.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,709,452 km

• M1: 138,079 km (0.102 R)
• M2: 560,992 km (0.118 R)
• M3: 925,412 km (0.119 R)
• M4: 1,320,500 km (0.098 R)
• M5: 1,730,099 km (0.073 R)
• M6: 2,420,344 km (0.085 R)
• M7: 3,079,472 km (0.057 R)
• M8: 4,464,000 km (0.033 R)
• M9: 4,956,028 km (0.075 R)
• M10: 5,456,732 km (0.076 R)
• M11: 6,747,014 km (0.055 R)
• M12: 7,702,495 km (0.08 R)
• M13: 8,194,822 km (0.108 R)
• M14: 9,049,474 km (0.119 R)
• M15: 10,085,888 km (0.098 R)
• M16: 12,346,312 km (0.107 R)
• M17: 14,446,367 km (0.115 R)
• M18: 17,126,263 km (0.094 R)
• M19: 18,150,111 km (0.04 R)
• M20: 18,708,560 km (0.075 R)
• M21: 23,231,652 km (0.117 R)
• M22: 23,890,032 km (0.088 R)
• M23: 24,335,834 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757.8

Radius: 10.8

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 4.19 AU - 4.49 AU

Year: 5931 Days

Day: 14.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,709,452 km

• M1: 135,386 km (0.107 R)
• M2: 843,582 km (0.087 R)
• M3: 1,468,602 km (0.114 R)
• M4: 1,987,408 km (0.084 R)
• M5: 2,399,101 km (0.088 R)
• M6: 3,043,569 km (0.079 R)
• M7: 3,572,098 km (0.1 R)
• M8: 4,038,095 km (0.107 R)
• M9: 5,593,315 km (0.103 R)
• M10: 6,223,870 km (0.107 R)
• M11: 9,402,226 km (0.12 R)
• M12: 11,047,653 km (0.055 R)
• M13: 12,143,158 km (0.112 R)
• M14: 12,930,642 km (0.071 R)
• M15: 17,518,958 km (0.103 R)
• M16: 19,852,385 km (0.086 R)
• M17: 20,284,723 km (0.068 R)
• M18: 21,093,449 km (0.075 R)
• M19: 22,854,067 km (0.072 R)
• M20: 27,904,940 km (0.087 R)
• M21: 31,755,140 km (0.109 R)
• M22: 34,165,910 km (0.115 R)
• M23: 34,995,879 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.5

Radius: 8.2

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 3.46 AU - 5.6 AU

Year: 6325 Days

Day: 14.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 67,709,452 km

• M1: 102,624 km (0.072 R)
• M2: 432,188 km (0.101 R)
• M3: 691,441 km (0.068 R)
• M4: 1,126,622 km (0.116 R)
• M5: 1,919,041 km (0.112 R)
• M6: 3,245,077 km (0.064 R)
• M7: 4,310,663 km (0.082 R)
• M8: 5,805,893 km (0.026 R)
• M9: 6,424,481 km (0.099 R)
• M10: 7,086,302 km (0.073 R)
• M11: 7,821,874 km (0.033 R)
• M12: 9,246,644 km (0.041 R)
• M13: 11,130,979 km (0.07 R)
• M14: 12,202,399 km (0.099 R)
• M15: 13,257,662 km (0.102 R)
• M16: 14,066,389 km (0.101 R)
• M17: 15,088,890 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482

Radius: 13.2

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 3.93 AU - 6.01 AU

Year: 7268 Days

Day: 13 Hours

Environment

Temp: -216 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,709,452 km

• M1: 168,447 km (0.045 R)
• M2: 693,685 km (0.087 R)
• M3: 1,341,594 km (0.084 R)
• M4: 1,859,651 km (0.116 R)
• M5: 3,310,750 km (0.072 R)
• M6: 3,840,327 km (0.079 R)
• M7: 4,767,983 km (0.062 R)
• M8: 5,535,420 km (0.104 R)
• M9: 6,123,639 km (0.072 R)
• M10: 7,462,690 km (0.117 R)
• M11: 8,339,034 km (0.038 R)
• M12: 10,296,971 km (0.05 R)
• M13: 11,044,960 km (0.046 R)
• M14: 11,778,888 km (0.062 R)
• M15: 13,951,348 km (0.12 R)
• M16: 19,215,398 km (0.069 R)
• M17: 21,528,181 km (0.12 R)
• M18: 24,590,748 km (0.098 R)
• M19: 25,588,716 km (0.055 R)
• M20: 26,097,797 km (0.072 R)
• M21: 26,874,061 km (0.119 R)
• M22: 30,988,301 km (0.088 R)
• M23: 31,956,499 km (0.042 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 321

Radius: 6.7

Gravity: 7.15 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 6.59 AU - 9.55 AU

Year: 15039 Days

Day: 19.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 67,709,452 km

• M1: 83,625 km (0.112 R)
• M2: 318,793 km (0.117 R)
• M3: 541,694 km (0.113 R)
• M4: 1,097,899 km (0.081 R)
• M5: 3,182,396 km (0.079 R)
• M6: 4,618,685 km (0.12 R)
• M7: 5,052,219 km (0.072 R)
• M8: 5,345,132 km (0.036 R)
• M9: 6,441,535 km (0.094 R)
• M10: 8,423,707 km (0.054 R)
• M11: 10,001,665 km (0.07 R)
• M12: 15,154,563 km (0.032 R)
• M13: 19,853,283 km (0.068 R)
• M14: 20,996,660 km (0.046 R)
• M15: 25,156,378 km (0.038 R)
• M16: 29,310,860 km (0.106 R)
• M17: 37,457,661 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 807.8

Radius: 7.1

Gravity: 16.02 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 6.32 AU - 10.12 AU

Year: 15460 Days

Day: 15.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 67,709,452 km

• M1: 94,396 km (0.111 R)
• M2: 779,255 km (0.096 R)
• M3: 1,094,907 km (0.084 R)
• M4: 1,479,373 km (0.025 R)
• M5: 2,221,977 km (0.119 R)
• M6: 2,676,306 km (0.103 R)
• M7: 3,165,042 km (0.115 R)
• M8: 4,161,514 km (0.067 R)
• M9: 5,315,960 km (0.102 R)
• M10: 5,731,543 km (0.089 R)
• M11: 6,374,365 km (0.05 R)
• M12: 6,756,438 km (0.055 R)
• M13: 9,005,642 km (0.105 R)
• M14: 12,091,397 km (0.112 R)
• M15: 17,402,571 km (0.119 R)
• M16: 17,898,039 km (0.1 R)
• M17: 18,317,960 km (0.103 R)
• M18: 18,917,100 km (0.039 R)
• M19: 19,529,104 km (0.067 R)
• M20: 21,633,198 km (0.085 R)
• M21: 22,886,978 km (0.094 R)
• M22: 25,013,512 km (0.103 R)
• M23: 29,074,795 km (0.112 R)
• M24: 30,007,388 km (0.111 R)
• M25: 31,200,730 km (0.065 R)
• M26: 32,799,184 km (0.041 R)
• M27: 39,173,998 km (0.05 R)
• M28: 39,739,777 km (0.111 R)
• M29: 42,057,347 km (0.11 R)
• M30: 45,079,224 km (0.078 R)
• M31: 49,548,610 km (0.094 R)
• M32: 50,044,377 km (0.033 R)
• M33: 50,543,286 km (0.104 R)
• M34: 52,230,601 km (0.109 R)
• M35: 55,184,710 km (0.07 R)
• M36: 57,154,315 km (0.085 R)
• M37: 59,728,446 km (0.103 R)
• M38: 63,732,732 km (0.074 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: 317 - 10,823 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit