🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.9

Radius: 9.5

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.47 AU - 0.63 AU

Year: 277 Days

Day: 8.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,501,444 km

• M1: 120,875 km (0.09 R)
• M2: 553,063 km (0.083 R)
• M3: 1,002,755 km (0.079 R)
• M4: 1,476,980 km (0.077 R)
• M5: 1,891,366 km (0.062 R)
• M6: 2,188,766 km (0.112 R)
• M7: 2,649,528 km (0.092 R)
• M8: 2,946,629 km (0.12 R)
• M9: 3,542,926 km (0.064 R)
• M10: 3,846,909 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.8

Radius: 11

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.74 AU - 0.88 AU

Year: 494 Days

Day: 14.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,501,444 km

• M1: 138,378 km (0.11 R)
• M2: 504,145 km (0.117 R)
• M3: 965,654 km (0.11 R)
• M4: 1,308,533 km (0.049 R)
• M5: 1,875,509 km (0.072 R)
• M6: 2,730,909 km (0.089 R)
• M7: 3,306,562 km (0.09 R)
• M8: 4,035,403 km (0.061 R)
• M9: 4,524,887 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980.6

Radius: 12.5

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.87 AU - 0.91 AU

Year: 569 Days

Day: 5.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 149.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,501,444 km

• M1: 155,582 km (0.06 R)
• M2: 695,780 km (0.099 R)
• M3: 1,100,741 km (0.073 R)
• M4: 1,539,811 km (0.107 R)
• M5: 2,172,610 km (0.057 R)
• M6: 2,664,637 km (0.105 R)
• M7: 3,082,015 km (0.077 R)
• M8: 3,762,985 km (0.103 R)
• M9: 4,245,737 km (0.114 R)
• M10: 4,836,050 km (0.034 R)
• M11: 5,664,374 km (0.109 R)
• M12: 6,401,442 km (0.103 R)
• M13: 7,027,659 km (0.096 R)
• M14: 7,879,170 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.2

Radius: 9.3

Gravity: 8.05 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.99 AU - 1.11 AU

Year: 730 Days

Day: 8.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,501,444 km

• M1: 115,639 km (0.086 R)
• M2: 413,937 km (0.108 R)
• M3: 1,159,383 km (0.071 R)
• M4: 1,636,601 km (0.052 R)
• M5: 1,926,521 km (0.042 R)
• M6: 2,250,999 km (0.076 R)
• M7: 2,611,979 km (0.106 R)
• M8: 2,938,252 km (0.065 R)
• M9: 3,304,916 km (0.114 R)
• M10: 4,239,155 km (0.083 R)
• M11: 4,625,417 km (0.095 R)
• M12: 5,340,046 km (0.111 R)
• M13: 5,927,666 km (0.09 R)
• M14: 6,391,120 km (0.105 R)
• M15: 8,169,390 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.1

Radius: 9.5

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.69 AU - 2.59 AU

Year: 2123 Days

Day: 9.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,501,444 km

• M1: 118,182 km (0.088 R)
• M2: 1,259,165 km (0.036 R)
• M3: 1,669,961 km (0.118 R)
• M4: 2,101,551 km (0.108 R)
• M5: 2,567,847 km (0.075 R)
• M6: 2,867,492 km (0.06 R)
• M7: 3,201,843 km (0.096 R)
• M8: 3,821,777 km (0.095 R)
• M9: 4,562,286 km (0.078 R)
• M10: 5,331,519 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582.4

Radius: 14.2

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 3.96 AU - 5.9 AU

Year: 7424 Days

Day: 10.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,501,444 km

• M1: 177,273 km (0.09 R)
• M2: 827,875 km (0.108 R)
• M3: 1,280,558 km (0.049 R)
• M4: 1,779,018 km (0.104 R)
• M5: 2,656,409 km (0.063 R)
• M6: 3,974,965 km (0.066 R)
• M7: 4,643,817 km (0.108 R)
• M8: 5,417,088 km (0.077 R)
• M9: 6,443,180 km (0.026 R)
• M10: 9,180,073 km (0.12 R)
• M11: 9,890,514 km (0.118 R)
• M12: 13,383,175 km (0.076 R)
• M13: 14,591,776 km (0.096 R)
• M14: 16,507,377 km (0.113 R)
• M15: 17,225,896 km (0.117 R)
• M16: 21,135,636 km (0.102 R)
• M17: 24,159,458 km (0.049 R)
• M18: 27,825,354 km (0.1 R)
• M19: 28,470,420 km (0.053 R)
• M20: 37,121,066 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 385.4

Radius: 6.4

Gravity: 9.41 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 7.64 AU - 8.3 AU

Year: 15261 Days

Day: 19.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 43,501,444 km

• M1: 80,932 km (0.103 R)
• M2: 314,904 km (0.085 R)
• M3: 614,698 km (0.119 R)
• M4: 1,000,062 km (0.067 R)
• M5: 1,565,542 km (0.032 R)
• M6: 2,119,951 km (0.08 R)
• M7: 3,234,306 km (0.052 R)
• M8: 3,849,901 km (0.073 R)
• M9: 4,390,548 km (0.108 R)
• M10: 4,915,936 km (0.093 R)
• M11: 7,067,751 km (0.03 R)
• M12: 8,144,407 km (0.09 R)
• M13: 12,682,459 km (0.08 R)
• M14: 21,130,400 km (0.099 R)
• M15: 26,493,932 km (0.112 R)
• M16: 28,222,685 km (0.109 R)
• M17: 29,274,059 km (0.044 R)
• M18: 29,917,181 km (0.097 R)
• M19: 41,799,141 km (0.043 R)
• M20: 45,982,047 km (0.051 R)
• M21: 50,282,687 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 170.2

Radius: 4

Gravity: 10.64 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 7.31 AU - 10.05 AU

Year: 17345 Days

Day: 23.4 Hours

Environment

Temp: -243 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 43,501,444 km

• M1: 50,414 km (0.099 R)
• M2: 217,964 km (0.101 R)
• M3: 481,556 km (0.09 R)
• M4: 1,258,417 km (0.107 R)
• M5: 2,197,593 km (0.094 R)
• M6: 2,872,578 km (0.078 R)
• M7: 4,915,487 km (0.102 R)
• M8: 5,193,140 km (0.067 R)
• M9: 5,351,864 km (0.096 R)
• M10: 6,265,757 km (0.114 R)
• M11: 8,096,686 km (0.063 R)
• M12: 8,748,783 km (0.067 R)
• M13: 11,818,232 km (0.112 R)
• M14: 12,204,344 km (0.116 R)
• M15: 13,294,763 km (0.065 R)
• M16: 13,833,315 km (0.091 R)
• M17: 14,077,160 km (0.115 R)
• M18: 14,699,636 km (0.09 R)
• M19: 17,586,127 km (0.092 R)
• M20: 19,123,993 km (0.11 R)
• M21: 19,579,369 km (0.118 R)
• M22: 21,718,170 km (0.06 R)
• M23: 22,130,611 km (0.072 R)
• M24: 25,346,517 km (0.069 R)
• M25: 31,831,734 km (0.107 R)
• M26: 32,150,228 km (0.045 R)
• M27: 33,010,117 km (0.062 R)
• M28: 34,217,072 km (0.071 R)
• M29: 40,571,691 km (0.09 R)
• M30: 42,466,946 km (0.079 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 468 - 14,246 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit