🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.2

Radius: 10.9

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.51 AU - 0.65 AU

Year: 305 Days

Day: 6.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 55,505,499 km

• M1: 135,685 km (0.063 R)
• M2: 582,684 km (0.111 R)
• M3: 951,442 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.3

Radius: 11.5

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.69 AU - 1.11 AU

Year: 589 Days

Day: 13.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,505,499 km

• M1: 143,165 km (0.098 R)
• M2: 619,485 km (0.05 R)
• M3: 1,674,748 km (0.101 R)
• M4: 2,045,452 km (0.083 R)
• M5: 2,461,783 km (0.084 R)
• M6: 4,206,991 km (0.074 R)
• M7: 4,808,076 km (0.062 R)
• M8: 5,179,228 km (0.108 R)
• M9: 5,852,568 km (0.084 R)
• M10: 6,276,379 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454.7

Radius: 12.4

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.25 AU - 1.31 AU

Year: 1000 Days

Day: 13.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,505,499 km

• M1: 160,818 km (0.11 R)
• M2: 563,834 km (0.109 R)
• M3: 982,559 km (0.119 R)
• M4: 1,595,012 km (0.056 R)
• M5: 2,075,820 km (0.089 R)
• M6: 2,607,640 km (0.107 R)
• M7: 3,125,698 km (0.09 R)
• M8: 4,452,481 km (0.108 R)
• M9: 5,197,180 km (0.11 R)
• M10: 5,609,471 km (0.086 R)
• M11: 6,063,800 km (0.038 R)
• M12: 6,979,788 km (0.106 R)
• M13: 7,412,874 km (0.106 R)
• M14: 8,207,986 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.8

Radius: 14.7

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.98 AU - 2.18 AU

Year: 2071 Days

Day: 10.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,505,499 km

• M1: 182,809 km (0.071 R)
• M2: 737,368 km (0.113 R)
• M3: 1,223,411 km (0.107 R)
• M4: 1,727,257 km (0.119 R)
• M5: 2,268,801 km (0.117 R)
• M6: 2,878,712 km (0.074 R)
• M7: 3,579,578 km (0.084 R)
• M8: 4,311,859 km (0.086 R)
• M9: 5,852,269 km (0.088 R)
• M10: 6,872,077 km (0.064 R)
• M11: 7,352,436 km (0.061 R)
• M12: 7,825,016 km (0.107 R)
• M13: 8,317,941 km (0.094 R)
• M14: 10,281,712 km (0.116 R)
• M15: 11,333,385 km (0.117 R)
• M16: 15,585,256 km (0.119 R)
• M17: 16,618,379 km (0.066 R)
• M18: 17,383,871 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.4

Radius: 8.9

Gravity: 8.43 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.72 AU - 3.76 AU

Year: 4026 Days

Day: 9.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,505,499 km

• M1: 112,049 km (0.115 R)
• M2: 449,691 km (0.105 R)
• M3: 1,098,048 km (0.101 R)
• M4: 1,396,197 km (0.117 R)
• M5: 2,293,186 km (0.119 R)
• M6: 2,605,247 km (0.068 R)
• M7: 3,258,391 km (0.119 R)
• M8: 3,758,796 km (0.099 R)
• M9: 4,309,615 km (0.091 R)
• M10: 5,435,639 km (0.097 R)
• M11: 6,199,336 km (0.102 R)
• M12: 7,904,003 km (0.079 R)
• M13: 8,845,572 km (0.11 R)
• M14: 12,589,259 km (0.071 R)
• M15: 13,268,882 km (0.079 R)
• M16: 15,236,992 km (0.117 R)
• M17: 16,575,893 km (0.091 R)
• M18: 17,215,125 km (0.102 R)
• M19: 17,511,029 km (0.105 R)
• M20: 19,041,864 km (0.045 R)
• M21: 23,946,730 km (0.113 R)
• M22: 25,752,525 km (0.074 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 14.2

Radius: 6.3

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 5.94 AU - 6.44 AU

Year: 10630 Days

Day: 22.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 55,505,499 km

• M1: 78,539 km (0.093 R)
• M2: 529,427 km (0.072 R)
• M3: 1,288,187 km (0.113 R)
• M4: 6,183,478 km (0.101 R)
• M5: 7,847,456 km (0.099 R)
• M6: 8,904,215 km (0.046 R)
• M7: 12,143,158 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 685.8

Radius: 3.2

Gravity: 66.97 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 7.18 AU - 8.12 AU

Year: 14605 Days

Day: 17.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 55,505,499 km

• M1: 39,943 km (0.089 R)
• M2: 160,219 km (0.071 R)
• M3: 1,086,829 km (0.104 R)
• M4: 1,187,807 km (0.089 R)
• M5: 1,591,422 km (0.047 R)
• M6: 1,824,645 km (0.096 R)
• M7: 1,931,309 km (0.101 R)
• M8: 2,137,903 km (0.037 R)
• M9: 2,776,387 km (0.056 R)
• M10: 4,577,396 km (0.103 R)
• M11: 6,282,213 km (0.065 R)
• M12: 7,077,326 km (0.083 R)
• M13: 7,704,440 km (0.038 R)
• M14: 8,663,512 km (0.074 R)
• M15: 12,644,610 km (0.081 R)
• M16: 13,497,767 km (0.06 R)
• M17: 15,759,986 km (0.088 R)
• M18: 16,286,571 km (0.077 R)
• M19: 17,295,159 km (0.059 R)
• M20: 21,932,095 km (0.055 R)
• M21: 22,305,192 km (0.117 R)
• M22: 22,587,932 km (0.099 R)
• M23: 23,450,065 km (0.063 R)
• M24: 28,532,203 km (0.104 R)
• M25: 29,088,708 km (0.099 R)
• M26: 29,994,074 km (0.049 R)
• M27: 34,176,382 km (0.08 R)
• M28: 39,276,023 km (0.109 R)
• M29: 39,413,055 km (0.074 R)
• M30: 45,309,904 km (0.098 R)
• M31: 50,786,682 km (0.08 R)
• M32: 51,439,377 km (0.084 R)
• M33: 54,616,238 km (0.099 R)
• M34: 55,129,508 km (0.086 R)
• M35: 58,812,608 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 270.5

Radius: 5.7

Gravity: 8.33 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 7.31 AU - 11.45 AU

Year: 19830 Days

Day: 24.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 55,505,499 km

• M1: 70,909 km (0.044 R)
• M2: 285,433 km (0.113 R)
• M3: 799,601 km (0.103 R)
• M4: 1,274,723 km (0.119 R)
• M5: 1,597,705 km (0.071 R)
• M6: 1,836,763 km (0.117 R)
• M7: 3,753,411 km (0.108 R)
• M8: 4,857,742 km (0.083 R)
• M9: 5,572,969 km (0.041 R)
• M10: 5,753,085 km (0.047 R)
• M11: 7,424,393 km (0.089 R)
• M12: 12,468,683 km (0.108 R)
• M13: 16,743,592 km (0.069 R)
• M14: 17,424,562 km (0.099 R)
• M15: 18,360,895 km (0.115 R)
• M16: 21,902,923 km (0.096 R)
• M17: 22,900,592 km (0.098 R)
• M18: 26,075,058 km (0.111 R)
• M19: 27,298,619 km (0.089 R)
• M20: 27,506,261 km (0.078 R)
• M21: 28,666,842 km (0.094 R)
• M22: 31,767,706 km (0.06 R)
• M23: 40,617,617 km (0.049 R)
• M24: 42,956,281 km (0.112 R)
• M25: 50,041,236 km (0.052 R)
• M26: 53,858,973 km (0.061 R)
• M27: 55,173,490 km (0.113 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: 205 - 12,042 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit