🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.8

Radius: 9.6

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.75 AU - 0.77 AU

Year: 449 Days

Day: 9.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 35,162,059 km

• M1: 119,529 km (0.076 R)
• M2: 433,535 km (0.109 R)
• M3: 753,973 km (0.076 R)
• M4: 1,420,731 km (0.053 R)
• M5: 2,052,333 km (0.102 R)
• M6: 2,416,454 km (0.11 R)
• M7: 3,380,762 km (0.059 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.7

Radius: 13.8

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.63 AU - 0.91 AU

Year: 458 Days

Day: 12.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,162,059 km

• M1: 171,888 km (0.064 R)
• M2: 640,279 km (0.106 R)
• M3: 1,412,802 km (0.083 R)
• M4: 1,902,137 km (0.107 R)
• M5: 2,963,384 km (0.056 R)
• M6: 3,645,251 km (0.116 R)
• M7: 4,291,813 km (0.107 R)
• M8: 4,818,847 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.2

Radius: 10.4

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.9 AU - 2.32 AU

Year: 2079 Days

Day: 10.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,162,059 km

• M1: 129,402 km (0.039 R)
• M2: 1,202,767 km (0.09 R)
• M3: 1,536,221 km (0.113 R)
• M4: 2,144,037 km (0.101 R)
• M5: 2,655,961 km (0.094 R)
• M6: 3,080,968 km (0.072 R)
• M7: 3,405,147 km (0.068 R)
• M8: 4,557,499 km (0.095 R)
• M9: 5,127,317 km (0.029 R)
• M10: 5,451,795 km (0.1 R)
• M11: 5,859,300 km (0.106 R)
• M12: 7,725,084 km (0.09 R)
• M13: 10,395,855 km (0.098 R)
• M14: 12,395,380 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 495.7

Radius: 13.9

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 3.1 AU - 3.76 AU

Year: 4309 Days

Day: 13.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 35,162,059 km

• M1: 172,935 km (0.11 R)
• M2: 616,343 km (0.071 R)
• M3: 1,114,055 km (0.096 R)
• M4: 1,596,658 km (0.117 R)
• M5: 2,110,976 km (0.073 R)
• M6: 2,607,940 km (0.098 R)
• M7: 4,499,754 km (0.103 R)
• M8: 5,307,583 km (0.092 R)
• M9: 9,082,984 km (0.076 R)
• M10: 9,577,854 km (0.09 R)
• M11: 11,214,754 km (0.098 R)
• M12: 11,874,481 km (0.039 R)
• M13: 12,841,481 km (0.063 R)
• M14: 13,466,052 km (0.061 R)
• M15: 15,623,403 km (0.111 R)
• M16: 16,279,988 km (0.112 R)
• M17: 16,954,824 km (0.058 R)
• M18: 21,006,234 km (0.059 R)
• M19: 22,009,886 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.7

Radius: 11.2

Gravity: 7.03 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 3.63 AU - 4.83 AU

Year: 5901 Days

Day: 6.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 35,162,059 km

• M1: 139,276 km (0.119 R)
• M2: 549,922 km (0.114 R)
• M3: 1,106,276 km (0.048 R)
• M4: 1,666,071 km (0.054 R)
• M5: 2,144,485 km (0.087 R)
• M6: 2,584,752 km (0.09 R)
• M7: 3,064,961 km (0.101 R)
• M8: 4,256,807 km (0.09 R)
• M9: 5,548,884 km (0.102 R)
• M10: 5,989,749 km (0.071 R)
• M11: 6,695,103 km (0.101 R)
• M12: 7,159,006 km (0.075 R)
• M13: 8,191,231 km (0.107 R)
• M14: 9,103,629 km (0.082 R)
• M15: 10,549,791 km (0.073 R)
• M16: 16,434,972 km (0.087 R)
• M17: 20,067,058 km (0.096 R)
• M18: 21,797,906 km (0.061 R)
• M19: 24,872,292 km (0.066 R)
• M20: 25,468,589 km (0.057 R)
• M21: 25,987,245 km (0.1 R)
• M22: 35,167,916 km (0.11 R)
• M23: 36,681,248 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 251.6

Radius: 13.8

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.4 AU - 5.14 AU

Year: 5985 Days

Day: 12.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,162,059 km

• M1: 171,589 km (0.082 R)
• M2: 872,006 km (0.06 R)
• M3: 1,510,340 km (0.08 R)
• M4: 2,016,729 km (0.075 R)
• M5: 2,815,282 km (0.105 R)
• M6: 3,775,401 km (0.061 R)
• M7: 6,053,029 km (0.052 R)
• M8: 8,227,733 km (0.095 R)
• M9: 9,357,945 km (0.115 R)
• M10: 14,314,721 km (0.111 R)
• M11: 15,460,940 km (0.057 R)
• M12: 16,555,248 km (0.085 R)
• M13: 17,700,570 km (0.111 R)
• M14: 19,391,923 km (0.028 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 537.8

Radius: 9.7

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 4.44 AU - 5.54 AU

Year: 7560 Days

Day: 8.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 35,162,059 km

• M1: 121,773 km (0.084 R)
• M2: 459,415 km (0.089 R)
• M3: 976,276 km (0.117 R)
• M4: 2,018,823 km (0.066 R)
• M5: 2,532,542 km (0.114 R)
• M6: 2,849,989 km (0.101 R)
• M7: 3,498,346 km (0.029 R)
• M8: 4,803,438 km (0.12 R)
• M9: 5,597,055 km (0.118 R)
• M10: 6,441,385 km (0.068 R)
• M11: 7,405,992 km (0.11 R)
• M12: 11,470,118 km (0.096 R)
• M13: 14,233,041 km (0.102 R)
• M14: 14,822,606 km (0.06 R)
• M15: 15,367,142 km (0.103 R)
• M16: 16,431,980 km (0.079 R)
• M17: 18,017,867 km (0.11 R)
• M18: 19,487,217 km (0.081 R)
• M19: 19,994,354 km (0.115 R)
• M20: 20,959,410 km (0.078 R)
• M21: 21,262,495 km (0.115 R)
• M22: 21,722,658 km (0.078 R)
• M23: 22,267,793 km (0.066 R)
• M24: 23,548,350 km (0.114 R)
• M25: 24,708,482 km (0.115 R)
• M26: 27,232,198 km (0.105 R)
• M27: 32,582,865 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 252.7

Radius: 6.6

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 5.92 AU - 6.38 AU

Year: 10344 Days

Day: 18.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,162,059 km

• M1: 87,066 km (0.069 R)
• M2: 772,523 km (0.06 R)
• M3: 1,331,271 km (0.08 R)
• M4: 2,737,192 km (0.094 R)
• M5: 3,586,459 km (0.056 R)
• M6: 7,811,851 km (0.076 R)
• M7: 8,483,097 km (0.118 R)
• M8: 9,278,060 km (0.104 R)
• M9: 10,398,398 km (0.035 R)
• M10: 11,063,810 km (0.079 R)
• M11: 12,426,646 km (0.058 R)
• M12: 16,285,224 km (0.086 R)
• M13: 19,923,594 km (0.09 R)
• M14: 24,729,126 km (0.101 R)
• M15: 27,666,481 km (0.088 R)
• M16: 31,606,141 km (0.07 R)
• M17: 31,900,998 km (0.058 R)
• M18: 33,301,683 km (0.034 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 541 - 17,265 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit