🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.52 AU - 0.64 AU

Year: 281 Days

Day: 26.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 33.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 22,193,762 km

• M1: 45,627 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.56 AU - 0.72 AU

Year: 326 Days

Day: 34.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 36.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.9

Radius: 9.9

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.74 AU - 0.98 AU

Year: 507 Days

Day: 14.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 22,193,762 km

• M1: 123,119 km (0.107 R)
• M2: 449,691 km (0.083 R)
• M3: 897,138 km (0.1 R)
• M4: 1,238,521 km (0.09 R)
• M5: 1,688,362 km (0.065 R)
• M6: 2,059,963 km (0.099 R)
• M7: 2,415,557 km (0.09 R)
• M8: 2,940,496 km (0.079 R)
• M9: 4,783,841 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888

Radius: 9.7

Gravity: 9.44 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.3 AU - 1.34 AU

Year: 964 Days

Day: 12.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 22,193,762 km

• M1: 120,725 km (0.103 R)
• M2: 426,055 km (0.092 R)
• M3: 790,475 km (0.1 R)
• M4: 1,104,481 km (0.115 R)
• M5: 1,870,572 km (0.077 R)
• M6: 2,723,728 km (0.118 R)
• M7: 3,231,464 km (0.026 R)
• M8: 3,553,398 km (0.034 R)
• M9: 4,418,972 km (0.108 R)
• M10: 5,239,217 km (0.025 R)
• M11: 6,113,766 km (0.12 R)
• M12: 7,939,309 km (0.119 R)
• M13: 8,365,663 km (0.072 R)
• M14: 10,699,240 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.7

Radius: 10.4

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.48 AU - 2.1 AU

Year: 1523 Days

Day: 12.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 22,193,762 km

• M1: 129,402 km (0.101 R)
• M2: 456,274 km (0.052 R)
• M3: 879,486 km (0.115 R)
• M4: 1,273,676 km (0.113 R)
• M5: 1,913,656 km (0.089 R)
• M6: 3,135,422 km (0.06 R)
• M7: 4,538,201 km (0.115 R)
• M8: 4,870,009 km (0.095 R)
• M9: 5,602,440 km (0.111 R)
• M10: 6,320,809 km (0.108 R)
• M11: 8,066,317 km (0.115 R)
• M12: 8,529,023 km (0.098 R)
• M13: 9,118,589 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.9

Radius: 10.6

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2 AU - 3.32 AU

Year: 2758 Days

Day: 7.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 22,193,762 km

• M1: 131,945 km (0.114 R)
• M2: 466,147 km (0.052 R)
• M3: 964,457 km (0.058 R)
• M4: 2,190,412 km (0.109 R)
• M5: 2,524,015 km (0.064 R)
• M6: 2,877,515 km (0.036 R)
• M7: 3,962,848 km (0.113 R)
• M8: 4,348,212 km (0.108 R)
• M9: 4,839,491 km (0.1 R)
• M10: 5,477,825 km (0.053 R)
• M11: 6,268,001 km (0.12 R)
• M12: 6,948,223 km (0.057 R)
• M13: 7,621,413 km (0.105 R)
• M14: 8,016,950 km (0.114 R)
• M15: 8,485,790 km (0.113 R)
• M16: 9,097,645 km (0.055 R)
• M17: 9,969,950 km (0.105 R)
• M18: 10,547,099 km (0.119 R)
• M19: 12,962,057 km (0.048 R)
• M20: 14,107,977 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.8

Radius: 13.6

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.37 AU - 2.99 AU

Year: 2790 Days

Day: 6 Hours

Environment

Temp: -189 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 22,193,762 km

• M1: 169,494 km (0.115 R)
• M2: 637,287 km (0.09 R)
• M3: 1,089,372 km (0.12 R)
• M4: 1,847,982 km (0.036 R)
• M5: 2,369,331 km (0.079 R)
• M6: 2,856,721 km (0.111 R)
• M7: 3,975,115 km (0.053 R)
• M8: 7,658,962 km (0.104 R)
• M9: 10,068,236 km (0.038 R)
• M10: 10,540,816 km (0.117 R)
• M11: 11,069,494 km (0.115 R)
• M12: 11,787,415 km (0.112 R)
• M13: 12,446,543 km (0.109 R)
• M14: 13,083,830 km (0.044 R)
• M15: 13,790,680 km (0.055 R)
• M16: 16,118,273 km (0.083 R)
• M17: 17,713,884 km (0.092 R)
• M18: 18,462,472 km (0.061 R)
• M19: 19,777,138 km (0.114 R)
• M20: 20,582,872 km (0.062 R)
• M21: 21,217,466 km (0.104 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 173 - 11,208 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit