🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.7

Radius: 8.7

Gravity: 10.68 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.74 AU - 0.88 AU

Year: 503 Days

Day: 10.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 70,466,334 km

• M1: 108,159 km (0.104 R)
• M2: 530,324 km (0.056 R)
• M3: 804,837 km (0.065 R)
• M4: 1,282,802 km (0.109 R)
• M5: 1,561,652 km (0.077 R)
• M6: 1,881,642 km (0.06 R)
• M7: 2,170,815 km (0.109 R)
• M8: 2,551,092 km (0.115 R)
• M9: 3,720,200 km (0.052 R)
• M10: 4,677,028 km (0.112 R)
• M11: 6,178,093 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156

Radius: 11

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.63 AU - 1.05 AU

Year: 531 Days

Day: 8.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 70,466,334 km

• M1: 136,732 km (0.11 R)
• M2: 541,694 km (0.105 R)
• M3: 950,096 km (0.101 R)
• M4: 1,356,254 km (0.111 R)
• M5: 1,738,327 km (0.095 R)
• M6: 3,513,007 km (0.081 R)
• M7: 3,890,592 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.9

Radius: 12.4

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.9 AU - 1.34 AU

Year: 818 Days

Day: 11.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 70,466,334 km

• M1: 154,235 km (0.097 R)
• M2: 649,404 km (0.116 R)
• M3: 1,252,284 km (0.112 R)
• M4: 1,667,867 km (0.114 R)
• M5: 2,549,447 km (0.077 R)
• M6: 2,998,689 km (0.071 R)
• M7: 3,615,930 km (0.107 R)
• M8: 4,045,276 km (0.04 R)
• M9: 4,449,041 km (0.048 R)
• M10: 4,991,782 km (0.12 R)
• M11: 5,683,522 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 326.5

Radius: 14.6

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.2 AU - 1.3 AU

Year: 965 Days

Day: 9.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,466,334 km

• M1: 181,612 km (0.043 R)
• M2: 685,158 km (0.07 R)
• M3: 1,154,896 km (0.082 R)
• M4: 2,393,566 km (0.071 R)
• M5: 3,559,083 km (0.109 R)
• M6: 4,346,716 km (0.055 R)
• M7: 5,058,353 km (0.072 R)
• M8: 6,612,974 km (0.086 R)
• M9: 7,225,428 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.1

Radius: 8.3

Gravity: 8.32 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.29 AU - 1.53 AU

Year: 1156 Days

Day: 14.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 70,466,334 km

• M1: 103,372 km (0.095 R)
• M2: 392,694 km (0.111 R)
• M3: 680,970 km (0.107 R)
• M4: 1,032,225 km (0.075 R)
• M5: 1,313,918 km (0.073 R)
• M6: 1,755,830 km (0.026 R)
• M7: 2,078,962 km (0.082 R)
• M8: 2,644,890 km (0.09 R)
• M9: 3,196,159 km (0.025 R)
• M10: 3,901,662 km (0.075 R)
• M11: 4,248,879 km (0.108 R)
• M12: 4,598,489 km (0.115 R)
• M13: 4,929,549 km (0.1 R)
• M14: 5,848,529 km (0.08 R)
• M15: 6,574,976 km (0.053 R)
• M16: 7,509,664 km (0.119 R)
• M17: 7,865,856 km (0.087 R)
• M18: 8,286,824 km (0.098 R)
• M19: 8,557,447 km (0.086 R)
• M20: 9,492,882 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.9

Radius: 13.2

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 3.04 AU - 4.08 AU

Year: 4636 Days

Day: 6.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,466,334 km

• M1: 164,258 km (0.112 R)
• M2: 947,703 km (0.107 R)
• M3: 1,637,947 km (0.047 R)
• M4: 2,584,154 km (0.093 R)
• M5: 3,029,506 km (0.119 R)
• M6: 3,950,730 km (0.081 R)
• M7: 4,363,770 km (0.039 R)
• M8: 5,303,693 km (0.078 R)
• M9: 5,726,756 km (0.107 R)
• M10: 6,143,685 km (0.058 R)
• M11: 7,551,551 km (0.096 R)
• M12: 10,828,343 km (0.057 R)
• M13: 11,687,932 km (0.089 R)
• M14: 12,546,325 km (0.065 R)
• M15: 13,837,653 km (0.101 R)
• M16: 15,006,162 km (0.05 R)
• M17: 20,473,516 km (0.086 R)
• M18: 21,387,708 km (0.051 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 833.5

Radius: 6.7

Gravity: 18.57 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 5.75 AU - 6.11 AU

Year: 9968 Days

Day: 22.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 70,466,334 km

• M1: 91,404 km (0.086 R)
• M2: 312,360 km (0.104 R)
• M3: 656,286 km (0.111 R)
• M4: 1,190,500 km (0.117 R)
• M5: 1,707,211 km (0.101 R)
• M6: 2,383,393 km (0.042 R)
• M7: 3,130,635 km (0.108 R)
• M8: 3,345,906 km (0.082 R)
• M9: 3,941,754 km (0.068 R)
• M10: 4,337,740 km (0.094 R)
• M11: 5,175,937 km (0.089 R)
• M12: 7,630,090 km (0.116 R)
• M13: 7,846,109 km (0.059 R)
• M14: 8,290,415 km (0.063 R)
• M15: 8,940,418 km (0.082 R)
• M16: 9,474,632 km (0.062 R)
• M17: 10,930,368 km (0.082 R)
• M18: 11,149,978 km (0.098 R)
• M19: 12,709,386 km (0.097 R)
• M20: 13,322,289 km (0.109 R)
• M21: 14,540,614 km (0.119 R)
• M22: 15,415,911 km (0.114 R)
• M23: 16,540,887 km (0.062 R)
• M24: 16,757,654 km (0.108 R)
• M25: 19,111,128 km (0.104 R)
• M26: 23,538,776 km (0.078 R)
• M27: 24,838,034 km (0.097 R)
• M28: 31,390,869 km (0.041 R)
• M29: 36,386,540 km (0.099 R)
• M30: 37,123,310 km (0.092 R)
• M31: 39,008,393 km (0.053 R)
• M32: 40,300,170 km (0.067 R)
• M33: 45,468,777 km (0.095 R)
• M34: 45,894,682 km (0.095 R)
• M35: 49,248,965 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 754.4

Radius: 6

Gravity: 20.96 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 6.94 AU - 9.98 AU

Year: 16985 Days

Day: 22.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 70,466,334 km

• M1: 74,649 km (0.119 R)
• M2: 321,785 km (0.112 R)
• M3: 520,301 km (0.103 R)
• M4: 1,023,549 km (0.096 R)
• M5: 1,845,290 km (0.077 R)
• M6: 2,052,184 km (0.09 R)
• M7: 2,768,757 km (0.058 R)
• M8: 2,965,179 km (0.07 R)
• M9: 3,386,297 km (0.082 R)
• M10: 3,998,452 km (0.104 R)
• M11: 6,361,649 km (0.103 R)
• M12: 8,105,213 km (0.107 R)
• M13: 8,873,547 km (0.11 R)
• M14: 11,097,320 km (0.103 R)
• M15: 11,658,760 km (0.098 R)
• M16: 13,738,021 km (0.091 R)
• M17: 14,094,962 km (0.114 R)
• M18: 16,052,151 km (0.088 R)
• M19: 16,689,138 km (0.108 R)
• M20: 19,228,114 km (0.091 R)
• M21: 24,218,998 km (0.077 R)
• M22: 24,635,179 km (0.098 R)
• M23: 25,482,053 km (0.035 R)
• M24: 26,899,343 km (0.076 R)
• M25: 28,483,584 km (0.05 R)
• M26: 30,009,333 km (0.077 R)
• M27: 30,853,065 km (0.102 R)
• M28: 31,836,671 km (0.091 R)
• M29: 35,711,256 km (0.104 R)
• M30: 39,744,564 km (0.079 R)
• M31: 44,847,646 km (0.042 R)
• M32: 46,427,699 km (0.072 R)
• M33: 49,198,401 km (0.056 R)
• M34: 50,878,685 km (0.109 R)
• M35: 51,733,038 km (0.11 R)
• M36: 59,856,801 km (0.077 R)
• M37: 60,236,331 km (0.117 R)
• M38: 63,134,490 km (0.073 R)
• M39: 64,120,789 km (0.117 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 551 - 16,648 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit