🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50.7

Radius: 13.8

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.66 AU - 0.82 AU

Year: 439 Days

Day: 12.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 36,951,117 km

• M1: 182,509 km (0.105 R)
• M2: 636,539 km (0.089 R)
• M3: 1,322,595 km (0.1 R)
• M4: 2,249,802 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.5

Radius: 8.2

Gravity: 9.01 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.88 AU - 1.14 AU

Year: 701 Days

Day: 12.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 36,951,117 km

• M1: 102,325 km (0.034 R)
• M2: 461,958 km (0.057 R)
• M3: 843,283 km (0.113 R)
• M4: 1,205,759 km (0.075 R)
• M5: 1,592,021 km (0.071 R)
• M6: 1,896,751 km (0.071 R)
• M7: 2,670,023 km (0.028 R)
• M8: 3,054,639 km (0.077 R)
• M9: 3,462,443 km (0.08 R)
• M10: 3,749,671 km (0.099 R)
• M11: 4,202,653 km (0.066 R)
• M12: 4,757,511 km (0.104 R)
• M13: 5,044,141 km (0.041 R)
• M14: 6,780,523 km (0.078 R)
• M15: 7,144,346 km (0.105 R)
• M16: 7,725,982 km (0.05 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.6

Radius: 12.6

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.86 AU - 1.32 AU

Year: 786 Days

Day: 15 Hours

Environment

Temp: -179 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,951,117 km

• M1: 157,377 km (0.074 R)
• M2: 741,856 km (0.064 R)
• M3: 1,182,272 km (0.08 R)
• M4: 1,653,505 km (0.109 R)
• M5: 2,075,970 km (0.109 R)
• M6: 2,621,104 km (0.084 R)
• M7: 3,284,122 km (0.1 R)
• M8: 3,751,765 km (0.114 R)
• M9: 4,566,924 km (0.066 R)
• M10: 5,009,135 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.3

Radius: 11.5

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.97 AU - 1.53 AU

Year: 965 Days

Day: 14.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,951,117 km

• M1: 143,016 km (0.083 R)
• M2: 696,079 km (0.088 R)
• M3: 1,057,059 km (0.046 R)
• M4: 2,360,804 km (0.095 R)
• M5: 2,776,387 km (0.102 R)
• M6: 3,138,863 km (0.08 R)
• M7: 5,236,673 km (0.114 R)
• M8: 7,779,987 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.1

Radius: 11.8

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 4.33 AU - 4.37 AU

Year: 6262 Days

Day: 9.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 36,951,117 km

• M1: 146,756 km (0.075 R)
• M2: 966,103 km (0.053 R)
• M3: 1,651,411 km (0.104 R)
• M4: 2,166,626 km (0.073 R)
• M5: 2,586,248 km (0.116 R)
• M6: 3,060,324 km (0.095 R)
• M7: 4,439,766 km (0.076 R)
• M8: 5,268,538 km (0.065 R)
• M9: 6,003,662 km (0.042 R)
• M10: 6,396,207 km (0.101 R)
• M11: 6,981,733 km (0.076 R)
• M12: 7,792,254 km (0.105 R)
• M13: 8,664,409 km (0.096 R)
• M14: 9,556,611 km (0.063 R)
• M15: 11,227,320 km (0.076 R)
• M16: 12,708,489 km (0.11 R)
• M17: 14,782,663 km (0.108 R)
• M18: 15,684,589 km (0.095 R)
• M19: 18,337,408 km (0.112 R)
• M20: 19,378,609 km (0.117 R)
• M21: 20,458,706 km (0.116 R)
• M22: 20,901,964 km (0.077 R)
• M23: 21,884,074 km (0.106 R)
• M24: 25,352,800 km (0.068 R)
• M25: 26,382,632 km (0.072 R)
• M26: 26,907,870 km (0.036 R)
• M27: 35,542,360 km (0.058 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 735.1

Radius: 3.3

Gravity: 67.5 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 5.35 AU - 8.31 AU

Year: 12321 Days

Day: 18.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 36,951,117 km

• M1: 40,990 km (0.061 R)
• M2: 151,094 km (0.069 R)
• M3: 298,897 km (0.09 R)
• M4: 421,567 km (0.064 R)
• M5: 753,973 km (0.092 R)
• M6: 900,729 km (0.066 R)
• M7: 1,162,675 km (0.085 R)
• M8: 1,278,164 km (0.096 R)
• M9: 1,671,756 km (0.106 R)
• M10: 2,520,126 km (0.117 R)
• M11: 3,488,174 km (0.083 R)
• M12: 3,621,016 km (0.082 R)
• M13: 3,953,872 km (0.047 R)
• M14: 4,712,183 km (0.031 R)
• M15: 5,007,490 km (0.079 R)
• M16: 10,045,048 km (0.085 R)
• M17: 11,498,691 km (0.032 R)
• M18: 14,540,015 km (0.1 R)
• M19: 17,451,190 km (0.065 R)
• M20: 22,328,081 km (0.053 R)
• M21: 22,786,598 km (0.064 R)
• M22: 25,075,445 km (0.11 R)
• M23: 26,992,692 km (0.095 R)
• M24: 28,359,268 km (0.112 R)
• M25: 28,896,923 km (0.109 R)
• M26: 31,229,453 km (0.051 R)
• M27: 42,232,227 km (0.103 R)
• M28: 44,646,587 km (0.053 R)
• M29: 48,514,739 km (0.108 R)
• M30: 53,248,315 km (0.051 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 132.4

Radius: 4.3

Gravity: 7.16 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 7.29 AU - 10.37 AU

Year: 18111 Days

Day: 15.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 168.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,951,117 km

• M1: 73,752 km (0.116 R)
• M2: 270,174 km (0.109 R)
• M3: 2,626,639 km (0.103 R)
• M4: 2,867,193 km (0.058 R)
• M5: 6,493,296 km (0.115 R)
• M6: 12,870,653 km (0.078 R)
• M7: 27,793,190 km (0.112 R)
• M8: 33,561,086 km (0.046 R)
• M9: 33,776,806 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 60.1

Radius: 7.1

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 10.19 AU - 10.43 AU

Year: 22851 Days

Day: 20.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,951,117 km

• M1: 88,263 km (0.067 R)
• M2: 5,701,474 km (0.037 R)
• M3: 7,931,829 km (0.096 R)
• M4: 9,571,571 km (0.06 R)
• M5: 10,686,225 km (0.101 R)
• M6: 23,863,852 km (0.059 R)
• M7: 30,510,935 km (0.095 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 263 - 13,740 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit