🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.6

Radius: 8.9

Gravity: 10.98 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.63 AU - 0.93 AU

Year: 438 Days

Day: 6.6 Hours

Environment

Temp: -152 °C

Axial Tilt: 144.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 55,657,011 km

• M1: 110,702 km (0.087 R)
• M2: 469,588 km (0.088 R)
• M3: 946,506 km (0.099 R)
• M4: 1,223,860 km (0.074 R)
• M5: 1,521,261 km (0.044 R)
• M6: 1,835,267 km (0.065 R)
• M7: 2,238,433 km (0.111 R)
• M8: 2,556,179 km (0.094 R)
• M9: 2,993,154 km (0.095 R)
• M10: 3,271,406 km (0.06 R)
• M11: 3,867,404 km (0.071 R)
• M12: 4,430,042 km (0.107 R)
• M13: 4,793,265 km (0.107 R)
• M14: 5,110,862 km (0.098 R)
• M15: 5,425,765 km (0.09 R)
• M16: 6,112,868 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.5

Radius: 12.5

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.64 AU - 0.98 AU

Year: 464 Days

Day: 7.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,657,011 km

• M1: 155,432 km (0.056 R)
• M2: 572,960 km (0.092 R)
• M3: 1,155,793 km (0.115 R)
• M4: 1,722,021 km (0.074 R)
• M5: 2,242,322 km (0.083 R)
• M6: 3,048,356 km (0.109 R)
• M7: 4,186,945 km (0.052 R)
• M8: 4,668,052 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.9

Radius: 10

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.78 AU - 0.92 AU

Year: 498 Days

Day: 7.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,657,011 km

• M1: 124,615 km (0.084 R)
• M2: 489,783 km (0.072 R)
• M3: 1,198,279 km (0.116 R)
• M4: 1,580,053 km (0.109 R)
• M5: 1,895,106 km (0.105 R)
• M6: 2,252,645 km (0.037 R)
• M7: 2,879,161 km (0.072 R)
• M8: 3,650,338 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.1

Radius: 13.2

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 4.09 AU - 6.19 AU

Year: 7409 Days

Day: 11.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 55,657,011 km

• M1: 164,109 km (0.081 R)
• M2: 1,253,630 km (0.094 R)
• M3: 2,335,821 km (0.087 R)
• M4: 2,991,060 km (0.042 R)
• M5: 4,018,947 km (0.105 R)
• M6: 4,586,970 km (0.073 R)
• M7: 6,729,211 km (0.073 R)
• M8: 7,414,370 km (0.067 R)
• M9: 8,103,717 km (0.083 R)
• M10: 9,059,049 km (0.114 R)
• M11: 11,038,079 km (0.102 R)
• M12: 11,883,606 km (0.048 R)
• M13: 13,116,293 km (0.042 R)
• M14: 13,644,523 km (0.108 R)
• M15: 16,165,995 km (0.089 R)
• M16: 21,061,884 km (0.097 R)
• M17: 21,543,440 km (0.087 R)
• M18: 23,716,050 km (0.114 R)
• M19: 24,413,026 km (0.119 R)
• M20: 25,847,819 km (0.089 R)
• M21: 26,679,284 km (0.097 R)
• M22: 27,623,845 km (0.086 R)
• M23: 28,983,690 km (0.114 R)
• M24: 31,210,005 km (0.07 R)
• M25: 32,577,928 km (0.109 R)
• M26: 34,983,312 km (0.081 R)
• M27: 38,094,649 km (0.119 R)
• M28: 39,534,828 km (0.094 R)
• M29: 40,022,966 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574

Radius: 14

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 5.08 AU - 5.86 AU

Year: 8134 Days

Day: 6.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,657,011 km

• M1: 174,132 km (0.084 R)
• M2: 1,007,392 km (0.093 R)
• M3: 1,942,828 km (0.113 R)
• M4: 2,627,088 km (0.054 R)
• M5: 3,120,312 km (0.097 R)
• M6: 3,605,458 km (0.085 R)
• M7: 4,115,886 km (0.12 R)
• M8: 5,591,520 km (0.072 R)
• M9: 6,143,835 km (0.107 R)
• M10: 7,862,864 km (0.097 R)
• M11: 12,392,538 km (0.08 R)
• M12: 13,278,157 km (0.042 R)
• M13: 14,264,905 km (0.098 R)
• M14: 15,740,538 km (0.053 R)
• M15: 17,932,746 km (0.12 R)
• M16: 18,849,930 km (0.1 R)
• M17: 20,854,542 km (0.025 R)
• M18: 22,428,610 km (0.11 R)
• M19: 23,995,947 km (0.103 R)
• M20: 25,459,314 km (0.1 R)
• M21: 34,534,818 km (0.107 R)
• M22: 39,142,881 km (0.119 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 128.5

Radius: 4.9

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 6.79 AU - 7.85 AU

Year: 12592 Days

Day: 21.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,657,011 km

• M1: 62,682 km (0.09 R)
• M2: 565,929 km (0.118 R)
• M3: 1,430,156 km (0.076 R)
• M4: 1,626,727 km (0.099 R)
• M5: 1,969,905 km (0.063 R)
• M6: 2,856,272 km (0.097 R)
• M7: 5,173,992 km (0.059 R)
• M8: 6,553,434 km (0.105 R)
• M9: 8,551,014 km (0.041 R)
• M10: 18,787,249 km (0.085 R)
• M11: 19,261,025 km (0.06 R)
• M12: 23,342,055 km (0.073 R)
• M13: 26,586,234 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 501

Radius: 3.7

Gravity: 36.6 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 7.06 AU - 9.12 AU

Year: 14630 Days

Day: 23.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 55,657,011 km

• M1: 46,076 km (0.075 R)
• M2: 212,130 km (0.109 R)
• M3: 968,048 km (0.091 R)
• M4: 1,240,765 km (0.109 R)
• M5: 1,430,604 km (0.087 R)
• M6: 1,670,859 km (0.065 R)
• M7: 2,978,643 km (0.052 R)
• M8: 3,447,333 km (0.06 R)
• M9: 3,740,246 km (0.115 R)
• M10: 3,906,898 km (0.071 R)
• M11: 6,157,748 km (0.119 R)
• M12: 7,775,499 km (0.085 R)
• M13: 8,561,785 km (0.08 R)
• M14: 9,048,278 km (0.063 R)
• M15: 14,017,769 km (0.093 R)
• M16: 15,745,026 km (0.087 R)
• M17: 16,771,716 km (0.1 R)
• M18: 23,789,502 km (0.102 R)
• M19: 33,480,003 km (0.096 R)
• M20: 37,301,032 km (0.112 R)
• M21: 38,202,359 km (0.096 R)
• M22: 38,854,905 km (0.114 R)
• M23: 50,331,156 km (0.059 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 477 - 11,466 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit