🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180.7

Radius: 14.5

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.45 AU - 0.57 AU

Year: 251 Days

Day: 14.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 21,327,556 km

• M1: 180,265 km (0.075 R)
• M2: 698,024 km (0.03 R)
• M3: 1,415,345 km (0.041 R)
• M4: 1,942,379 km (0.115 R)
• M5: 2,409,723 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392

Radius: 14.6

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.7 AU - 0.7 AU

Year: 404 Days

Day: 14 Hours

Environment

Temp: -163 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,327,556 km

• M1: 181,612 km (0.104 R)
• M2: 646,412 km (0.056 R)
• M3: 1,239,867 km (0.078 R)
• M4: 1,856,360 km (0.04 R)
• M5: 2,428,572 km (0.056 R)
• M6: 2,909,828 km (0.049 R)
• M7: 3,565,964 km (0.105 R)
• M8: 4,069,212 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.1

Radius: 13.5

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.17 AU - 1.47 AU

Year: 1047 Days

Day: 10.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,327,556 km

• M1: 167,998 km (0.113 R)
• M2: 648,956 km (0.028 R)
• M3: 1,169,556 km (0.079 R)
• M4: 1,957,488 km (0.102 R)
• M5: 2,745,719 km (0.06 R)
• M6: 3,264,824 km (0.11 R)
• M7: 4,969,342 km (0.108 R)
• M8: 5,548,735 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.5

Radius: 14.7

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 2.12 AU - 2.64 AU

Year: 2534 Days

Day: 7.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,327,556 km

• M1: 182,809 km (0.064 R)
• M2: 805,136 km (0.084 R)
• M3: 1,308,383 km (0.058 R)
• M4: 2,006,556 km (0.068 R)
• M5: 2,560,068 km (0.032 R)
• M6: 3,078,874 km (0.11 R)
• M7: 4,035,552 km (0.097 R)
• M8: 5,054,762 km (0.084 R)
• M9: 6,166,424 km (0.079 R)
• M10: 7,325,808 km (0.103 R)
• M11: 8,235,363 km (0.103 R)
• M12: 9,347,473 km (0.1 R)
• M13: 10,733,498 km (0.037 R)
• M14: 12,330,305 km (0.118 R)
• M15: 13,452,140 km (0.109 R)
• M16: 14,251,441 km (0.113 R)
• M17: 14,860,604 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 417.6

Radius: 12.3

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 3.65 AU - 5.51 AU

Year: 6766 Days

Day: 6.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 160 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,327,556 km

• M1: 186,997 km (0.115 R)
• M2: 616,942 km (0.111 R)
• M3: 1,174,343 km (0.12 R)
• M4: 2,285,556 km (0.061 R)
• M5: 2,974,454 km (0.081 R)
• M6: 4,191,134 km (0.081 R)
• M7: 4,689,145 km (0.054 R)
• M8: 5,226,501 km (0.099 R)
• M9: 18,234,484 km (0.041 R)
• M10: 20,396,772 km (0.081 R)
• M11: 22,052,821 km (0.112 R)
• M12: 24,902,660 km (0.057 R)
• M13: 28,163,295 km (0.109 R)
• M14: 30,672,949 km (0.076 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 725.4

Radius: 5.8

Gravity: 21.56 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 5.82 AU - 7.42 AU

Year: 11757 Days

Day: 24.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 21,327,556 km

• M1: 73,602 km (0.113 R)
• M2: 259,253 km (0.088 R)
• M3: 1,141,881 km (0.096 R)
• M4: 1,990,100 km (0.045 R)
• M5: 2,246,362 km (0.083 R)
• M6: 7,626,649 km (0.113 R)
• M7: 8,395,133 km (0.108 R)
• M8: 10,676,950 km (0.034 R)
• M9: 11,234,950 km (0.03 R)
• M10: 12,963,254 km (0.105 R)
• M11: 13,214,728 km (0.071 R)
• M12: 14,054,870 km (0.099 R)
• M13: 15,345,750 km (0.109 R)
• M14: 15,627,293 km (0.098 R)
• M15: 16,639,921 km (0.117 R)
• M16: 16,937,022 km (0.057 R)
• M17: 18,555,671 km (0.117 R)
• M18: 19,117,411 km (0.081 R)
• M19: 22,276,021 km (0.11 R)
• M20: 24,596,882 km (0.058 R)
• M21: 27,074,073 km (0.11 R)
• M22: 34,764,002 km (0.055 R)
• M23: 37,238,201 km (0.109 R)
• M24: 38,907,863 km (0.068 R)
• M25: 53,452,067 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 431.5

Radius: 3.6

Gravity: 33.29 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 6.39 AU - 7.51 AU

Year: 12647 Days

Day: 16.8 Hours

Environment

Temp: -239 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 21,327,556 km

• M1: 45,029 km (0.074 R)
• M2: 280,646 km (0.117 R)
• M3: 989,740 km (0.077 R)
• M4: 1,144,424 km (0.115 R)
• M5: 1,708,108 km (0.091 R)
• M6: 1,833,621 km (0.087 R)
• M7: 2,050,688 km (0.099 R)
• M8: 2,741,979 km (0.036 R)
• M9: 2,892,624 km (0.1 R)
• M10: 3,627,150 km (0.097 R)
• M11: 3,808,762 km (0.086 R)
• M12: 3,942,203 km (0.119 R)
• M13: 5,387,319 km (0.097 R)
• M14: 5,867,528 km (0.111 R)
• M15: 6,756,289 km (0.106 R)
• M16: 7,902,208 km (0.099 R)
• M17: 8,119,574 km (0.067 R)
• M18: 8,475,767 km (0.118 R)
• M19: 10,157,546 km (0.088 R)
• M20: 14,419,440 km (0.094 R)
• M21: 15,007,359 km (0.114 R)
• M22: 15,747,569 km (0.118 R)
• M23: 16,370,944 km (0.038 R)
• M24: 17,154,986 km (0.047 R)
• M25: 17,446,253 km (0.114 R)
• M26: 22,219,323 km (0.066 R)
• M27: 23,002,917 km (0.099 R)
• M28: 24,076,132 km (0.073 R)
• M29: 25,843,032 km (0.106 R)
• M30: 27,396,307 km (0.09 R)
• M31: 29,113,690 km (0.04 R)
• M32: 30,901,535 km (0.067 R)
• M33: 31,332,526 km (0.057 R)
• M34: 33,322,028 km (0.101 R)
• M35: 36,581,467 km (0.108 R)
• M36: 39,919,893 km (0.048 R)
• M37: 42,122,572 km (0.114 R)
• M38: 42,785,589 km (0.09 R)
• M39: 44,268,553 km (0.109 R)
• M40: 44,816,231 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 29.9

Radius: 3.7

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 5.95 AU - 9.07 AU

Year: 14206 Days

Day: 20.4 Hours

Environment

Temp: -239 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 21,327,556 km

• M1: 46,226 km (0.098 R)
• M2: 191,934 km (0.06 R)
• M3: 351,405 km (0.098 R)
• M4: 503,247 km (0.094 R)
• M5: 667,805 km (0.097 R)
• M6: 810,820 km (0.083 R)
• M7: 1,523,505 km (0.065 R)
• M8: 1,834,219 km (0.096 R)
• M9: 2,658,653 km (0.089 R)
• M10: 4,176,922 km (0.044 R)
• M11: 5,266,743 km (0.099 R)
• M12: 6,708,118 km (0.109 R)
• M13: 7,598,674 km (0.089 R)
• M14: 8,189,586 km (0.045 R)
• M15: 12,391,341 km (0.11 R)
• M16: 14,598,359 km (0.057 R)
• M17: 16,136,075 km (0.096 R)
• M18: 16,944,053 km (0.114 R)
• M19: 17,108,760 km (0.081 R)
• M20: 20,198,854 km (0.104 R)
• M21: 20,322,272 km (0.116 R)
• M22: 20,570,605 km (0.08 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: 215 - 15,231 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit