🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.86

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.52 AU - 0.76 AU

Year: 336 Days

Day: 41.3 Hours

Environment

Temp: -134 °C

Axial Tilt: 18.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 29,938,716 km

• M1: 29,920 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.3

Radius: 9.1

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.88 AU - 0.98 AU

Year: 588 Days

Day: 9.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 29,938,716 km

• M1: 113,246 km (0.109 R)
• M2: 403,914 km (0.083 R)
• M3: 746,793 km (0.085 R)
• M4: 1,054,964 km (0.043 R)
• M5: 1,478,027 km (0.078 R)
• M6: 2,270,896 km (0.075 R)
• M7: 3,581,373 km (0.062 R)
• M8: 4,167,647 km (0.026 R)
• M9: 4,719,813 km (0.112 R)
• M10: 6,121,545 km (0.054 R)
• M11: 6,471,753 km (0.094 R)
• M12: 6,938,798 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228.4

Radius: 14.8

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.44 AU - 1.52 AU

Year: 1181 Days

Day: 11.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 29,938,716 km

• M1: 185,053 km (0.113 R)
• M2: 673,190 km (0.11 R)
• M3: 1,421,928 km (0.097 R)
• M4: 1,923,829 km (0.051 R)
• M5: 2,577,571 km (0.06 R)
• M6: 3,200,198 km (0.117 R)
• M7: 3,670,234 km (0.085 R)
• M8: 4,353,896 km (0.104 R)
• M9: 5,314,165 km (0.097 R)
• M10: 6,133,513 km (0.105 R)
• M11: 6,697,796 km (0.111 R)
• M12: 7,363,058 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.5

Radius: 10.8

Gravity: 6.39 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.79 AU - 1.79 AU

Year: 1571 Days

Day: 8.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,938,716 km

• M1: 135,236 km (0.075 R)
• M2: 640,728 km (0.12 R)
• M3: 997,519 km (0.102 R)
• M4: 1,890,618 km (0.061 R)
• M5: 2,851,934 km (0.111 R)
• M6: 3,252,407 km (0.113 R)
• M7: 4,167,348 km (0.118 R)
• M8: 5,012,127 km (0.063 R)
• M9: 5,621,140 km (0.117 R)
• M10: 6,327,840 km (0.066 R)
• M11: 7,388,190 km (0.082 R)
• M12: 8,867,713 km (0.106 R)
• M13: 10,193,449 km (0.099 R)
• M14: 10,850,782 km (0.116 R)
• M15: 11,280,427 km (0.105 R)
• M16: 11,721,292 km (0.05 R)
• M17: 12,953,530 km (0.096 R)
• M18: 13,355,799 km (0.061 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.6

Radius: 8.1

Gravity: 10.77 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 4.36 AU - 5.96 AU

Year: 7689 Days

Day: 7.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,938,716 km

• M1: 128,355 km (0.103 R)
• M2: 498,161 km (0.037 R)
• M3: 872,604 km (0.073 R)
• M4: 1,722,769 km (0.103 R)
• M5: 3,104,904 km (0.05 R)
• M6: 3,920,212 km (0.071 R)
• M7: 5,199,723 km (0.054 R)
• M8: 5,639,241 km (0.112 R)
• M9: 6,664,585 km (0.038 R)
• M10: 9,035,562 km (0.092 R)
• M11: 14,309,036 km (0.097 R)
• M12: 16,135,477 km (0.104 R)
• M13: 16,665,502 km (0.079 R)
• M14: 20,474,563 km (0.03 R)
• M15: 22,376,102 km (0.062 R)
• M16: 23,538,028 km (0.054 R)
• M17: 25,981,859 km (0.119 R)
• M18: 37,915,132 km (0.046 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426

Radius: 10.4

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 4.25 AU - 6.39 AU

Year: 8050 Days

Day: 10.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 29,938,716 km

• M1: 138,528 km (0.101 R)
• M2: 623,075 km (0.119 R)
• M3: 1,274,424 km (0.042 R)
• M4: 1,734,288 km (0.08 R)
• M5: 2,319,964 km (0.038 R)
• M6: 3,653,180 km (0.107 R)
• M7: 4,203,700 km (0.11 R)
• M8: 6,662,042 km (0.052 R)
• M9: 7,559,928 km (0.113 R)
• M10: 7,979,700 km (0.118 R)
• M11: 8,577,194 km (0.071 R)
• M12: 9,906,521 km (0.087 R)
• M13: 10,409,768 km (0.115 R)
• M14: 11,617,023 km (0.116 R)
• M15: 12,489,777 km (0.109 R)
• M16: 15,070,639 km (0.088 R)
• M17: 22,022,901 km (0.058 R)
• M18: 23,198,291 km (0.058 R)
• M19: 27,867,241 km (0.077 R)
• M20: 28,320,373 km (0.107 R)
• M21: 29,241,597 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550.2

Radius: 12.6

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 4.7 AU - 6.7 AU

Year: 8927 Days

Day: 5.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 29,938,716 km

• M1: 157,975 km (0.111 R)
• M2: 600,935 km (0.114 R)
• M3: 1,370,915 km (0.105 R)
• M4: 2,560,517 km (0.084 R)
• M5: 3,638,519 km (0.109 R)
• M6: 4,511,722 km (0.117 R)
• M7: 5,615,754 km (0.104 R)
• M8: 6,966,324 km (0.086 R)
• M9: 7,579,227 km (0.115 R)
• M10: 9,543,746 km (0.086 R)
• M11: 9,964,714 km (0.052 R)
• M12: 10,844,050 km (0.09 R)
• M13: 12,982,851 km (0.07 R)
• M14: 14,151,659 km (0.088 R)
• M15: 18,293,576 km (0.104 R)
• M16: 20,293,250 km (0.064 R)
• M17: 32,411,875 km (0.102 R)
• M18: 35,218,331 km (0.056 R)
• M19: 37,716,466 km (0.056 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 121.2

Radius: 5.2

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 6.83 AU - 6.85 AU

Year: 11735 Days

Day: 18.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 29,938,716 km

• M1: 64,626 km (0.076 R)
• M2: 253,868 km (0.09 R)
• M3: 447,447 km (0.085 R)
• M4: 665,860 km (0.114 R)
• M5: 1,071,420 km (0.06 R)
• M6: 1,334,563 km (0.095 R)
• M7: 1,905,727 km (0.115 R)
• M8: 2,215,395 km (0.11 R)
• M9: 2,750,806 km (0.081 R)
• M10: 3,451,821 km (0.1 R)
• M11: 4,665,060 km (0.115 R)
• M12: 5,395,846 km (0.078 R)
• M13: 5,833,419 km (0.11 R)
• M14: 6,107,034 km (0.074 R)
• M15: 6,979,788 km (0.052 R)
• M16: 8,080,978 km (0.102 R)
• M17: 8,344,719 km (0.06 R)
• M18: 8,770,923 km (0.076 R)
• M19: 8,969,440 km (0.081 R)
• M20: 11,401,901 km (0.096 R)
• M21: 11,975,160 km (0.108 R)
• M22: 12,768,926 km (0.079 R)
• M23: 14,296,021 km (0.083 R)
• M24: 16,657,125 km (0.117 R)
• M25: 18,999,977 km (0.06 R)
• M26: 21,125,015 km (0.028 R)
• M27: 21,697,974 km (0.112 R)
• M28: 22,949,959 km (0.077 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: 260 - 15,305 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit