🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.45 AU - 0.71 AU

Year: 169 Days

Day: 43.7 Hours

Environment

Temp: 187 °C

Axial Tilt: 6.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.78 AU - 1.2 AU

Year: 377 Days

Day: 30.6 Hours

Environment

Temp: 0 °C

Axial Tilt: 35.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.98 AU - 2.66 AU

Year: 1353 Days

Day: 41.2 Hours

Environment

Temp: -92 °C

Axial Tilt: 16.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,922,497 km

• M1: 793,318 km (0.088 R)

Asteroid Belt

Center: 4.79 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.5

Radius: 8

Gravity: 14.18 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 7 AU - 7.5 AU

Year: 7474 Days

Day: 6.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 46,922,497 km

• M1: 99,483 km (0.083 R)
• M2: 553,811 km (0.094 R)
• M3: 816,804 km (0.069 R)
• M4: 1,069,625 km (0.119 R)
• M5: 1,425,967 km (0.04 R)
• M6: 2,051,286 km (0.109 R)
• M7: 2,492,001 km (0.115 R)
• M8: 3,784,377 km (0.059 R)
• M9: 4,706,349 km (0.069 R)
• M10: 6,287,898 km (0.089 R)
• M11: 8,110,748 km (0.058 R)
• M12: 8,715,572 km (0.12 R)
• M13: 9,029,129 km (0.099 R)
• M14: 9,584,137 km (0.086 R)
• M15: 15,128,833 km (0.095 R)
• M16: 19,925,539 km (0.034 R)
• M17: 20,786,175 km (0.039 R)
• M18: 22,164,869 km (0.102 R)
• M19: 23,174,057 km (0.115 R)
• M20: 24,744,834 km (0.08 R)
• M21: 25,465,298 km (0.065 R)
• M22: 27,710,462 km (0.095 R)
• M23: 28,291,650 km (0.098 R)
• M24: 31,529,995 km (0.118 R)
• M25: 40,070,837 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 575.3

Radius: 13.3

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 5.9 AU - 8.64 AU

Year: 7505 Days

Day: 11.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 46,922,497 km

• M1: 166,353 km (0.117 R)
• M2: 629,657 km (0.11 R)
• M3: 2,110,676 km (0.085 R)
• M4: 2,690,817 km (0.039 R)
• M5: 4,150,443 km (0.078 R)
• M6: 4,675,382 km (0.07 R)
• M7: 6,801,018 km (0.099 R)
• M8: 7,495,751 km (0.117 R)
• M9: 8,440,461 km (0.113 R)
• M10: 9,243,503 km (0.094 R)
• M11: 10,189,709 km (0.1 R)
• M12: 11,002,026 km (0.11 R)
• M13: 12,221,996 km (0.057 R)
• M14: 12,810,514 km (0.047 R)
• M15: 18,152,654 km (0.049 R)
• M16: 21,735,523 km (0.071 R)
• M17: 23,000,972 km (0.115 R)
• M18: 31,148,371 km (0.089 R)
• M19: 34,102,181 km (0.092 R)
• M20: 34,948,755 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.6

Radius: 12.3

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 6.96 AU - 8.18 AU

Year: 7975 Days

Day: 10.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 46,922,497 km

• M1: 159,023 km (0.047 R)
• M2: 835,355 km (0.117 R)
• M3: 1,323,941 km (0.065 R)
• M4: 3,386,297 km (0.074 R)
• M5: 4,588,167 km (0.116 R)
• M6: 5,699,080 km (0.059 R)
• M7: 6,491,800 km (0.11 R)
• M8: 6,948,223 km (0.082 R)
• M9: 8,795,906 km (0.099 R)
• M10: 10,067,787 km (0.079 R)
• M11: 14,841,156 km (0.032 R)
• M12: 19,702,937 km (0.03 R)
• M13: 21,084,025 km (0.098 R)
• M14: 21,510,678 km (0.118 R)
• M15: 23,049,591 km (0.088 R)
• M16: 24,739,299 km (0.101 R)
• M17: 26,182,171 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.1

Radius: 9.9

Gravity: 8.73 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 6.14 AU - 9.86 AU

Year: 8664 Days

Day: 13.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 46,922,497 km

• M1: 137,780 km (0.076 R)
• M2: 503,098 km (0.082 R)
• M3: 899,083 km (0.039 R)
• M4: 1,399,338 km (0.04 R)
• M5: 2,095,417 km (0.103 R)
• M6: 2,650,725 km (0.082 R)
• M7: 3,232,062 km (0.047 R)
• M8: 3,741,144 km (0.09 R)
• M9: 5,429,206 km (0.071 R)
• M10: 6,552,836 km (0.111 R)
• M11: 8,744,444 km (0.071 R)
• M12: 11,384,996 km (0.077 R)
• M13: 12,219,603 km (0.114 R)
• M14: 15,631,182 km (0.111 R)
• M15: 16,038,089 km (0.072 R)
• M16: 16,382,612 km (0.11 R)
• M17: 17,086,321 km (0.091 R)
• M18: 19,164,385 km (0.029 R)
• M19: 22,161,429 km (0.115 R)
• M20: 26,116,048 km (0.079 R)
• M21: 27,368,930 km (0.043 R)
• M22: 33,674,481 km (0.103 R)
• M23: 34,239,811 km (0.08 R)
• M24: 34,926,764 km (0.1 R)
• M25: 37,162,654 km (0.036 R)
• M26: 38,622,879 km (0.063 R)
• M27: 39,743,068 km (0.118 R)
• M28: 41,141,210 km (0.112 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 469 - 13,457 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit