🌌 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: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.7

Radius: 13.1

Gravity: 0.07 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.61 AU - 0.93 AU

Year: 430 Days

Day: 5.1 Hours

Environment

Temp: -139 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 53,246,067 km

• M1: 162,912 km (0.103 R)
• M2: 582,235 km (0.117 R)
• M3: 1,458,280 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.7

Radius: 8.9

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.82 AU - 1.02 AU

Year: 561 Days

Day: 7.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,246,067 km

• M1: 110,702 km (0.043 R)
• M2: 398,080 km (0.07 R)
• M3: 723,605 km (0.104 R)
• M4: 1,029,832 km (0.111 R)
• M5: 1,462,319 km (0.115 R)
• M6: 2,004,911 km (0.104 R)
• M7: 2,685,880 km (0.104 R)
• M8: 3,645,850 km (0.092 R)
• M9: 4,458,914 km (0.086 R)
• M10: 4,760,055 km (0.084 R)
• M11: 5,419,781 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.6

Radius: 12.6

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.97 AU - 1.21 AU

Year: 724 Days

Day: 12.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 158.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 53,246,067 km

• M1: 160,668 km (0.057 R)
• M2: 700,567 km (0.116 R)
• M3: 1,777,821 km (0.034 R)
• M4: 2,239,929 km (0.09 R)
• M5: 3,297,137 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.6

Radius: 14.5

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1 AU - 1.32 AU

Year: 794 Days

Day: 11.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 53,246,067 km

• M1: 183,706 km (0.1 R)
• M2: 694,583 km (0.11 R)
• M3: 1,243,158 km (0.044 R)
• M4: 2,012,839 km (0.077 R)
• M5: 2,834,431 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467

Radius: 10.7

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.95 AU - 1.58 AU

Year: 899 Days

Day: 12.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,246,067 km

• M1: 133,142 km (0.048 R)
• M2: 678,576 km (0.116 R)
• M3: 2,287,351 km (0.043 R)
• M4: 4,226,738 km (0.096 R)
• M5: 4,578,892 km (0.1 R)
• M6: 5,602,590 km (0.105 R)
• M7: 5,989,001 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.5

Radius: 10.6

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.51 AU - 1.83 AU

Year: 1372 Days

Day: 9.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,246,067 km

• M1: 131,796 km (0.108 R)
• M2: 547,079 km (0.078 R)
• M3: 1,033,871 km (0.112 R)
• M4: 1,412,353 km (0.095 R)
• M5: 1,940,733 km (0.085 R)
• M6: 2,482,427 km (0.049 R)
• M7: 3,368,645 km (0.118 R)
• M8: 5,439,079 km (0.117 R)
• M9: 5,879,944 km (0.077 R)
• M10: 7,017,786 km (0.12 R)
• M11: 7,762,634 km (0.05 R)
• M12: 8,401,117 km (0.085 R)
• M13: 8,773,766 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.4

Radius: 11.3

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.59 AU - 2.01 AU

Year: 1535 Days

Day: 13.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,246,067 km

• M1: 140,622 km (0.111 R)
• M2: 495,019 km (0.093 R)
• M3: 1,059,303 km (0.089 R)
• M4: 1,425,668 km (0.039 R)
• M5: 2,009,249 km (0.063 R)
• M6: 2,831,289 km (0.07 R)
• M7: 3,777,197 km (0.036 R)
• M8: 4,342,826 km (0.109 R)
• M9: 4,964,106 km (0.112 R)
• M10: 6,066,493 km (0.057 R)
• M11: 6,637,209 km (0.075 R)
• M12: 7,081,814 km (0.083 R)
• M13: 8,385,409 km (0.068 R)
• M14: 8,781,395 km (0.108 R)
• M15: 9,157,933 km (0.118 R)
• M16: 9,643,827 km (0.117 R)
• M17: 10,215,291 km (0.068 R)
• M18: 10,632,070 km (0.12 R)
• M19: 12,104,263 km (0.115 R)
• M20: 13,376,593 km (0.055 R)
• M21: 13,749,989 km (0.058 R)
• M22: 14,430,959 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 920.1

Radius: 7.4

Gravity: 16.8 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 5.21 AU - 7.43 AU

Year: 10102 Days

Day: 22.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 53,246,067 km

• M1: 92,003 km (0.099 R)
• M2: 598,541 km (0.078 R)
• M3: 873,652 km (0.062 R)
• M4: 1,185,414 km (0.047 R)
• M5: 1,429,108 km (0.119 R)
• M6: 1,690,905 km (0.092 R)
• M7: 2,199,687 km (0.11 R)
• M8: 2,613,475 km (0.035 R)
• M9: 3,101,762 km (0.087 R)
• M10: 4,115,138 km (0.093 R)
• M11: 5,681,428 km (0.11 R)
• M12: 8,743,996 km (0.107 R)
• M13: 10,249,997 km (0.069 R)
• M14: 11,120,208 km (0.118 R)
• M15: 11,630,786 km (0.064 R)
• M16: 15,723,484 km (0.058 R)
• M17: 17,102,029 km (0.118 R)
• M18: 23,517,533 km (0.08 R)
• M19: 28,235,701 km (0.114 R)
• M20: 28,866,555 km (0.084 R)
• M21: 29,722,255 km (0.11 R)
• M22: 36,068,645 km (0.075 R)
• M23: 37,564,025 km (0.034 R)
• M24: 43,540,161 km (0.077 R)
• M25: 46,972,535 km (0.085 R)
• M26: 50,735,220 km (0.06 R)
• M27: 51,199,871 km (0.071 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 424 - 15,631 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit