🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.51 AU - 0.53 AU

Year: 133 Days

Day: 21.5 Hours

Environment

Temp: 183 °C

Axial Tilt: 16.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.67 AU - 0.67 AU

Year: 195 Days

Day: 27.4 Hours

Environment

Temp: 163 °C

Axial Tilt: 8.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.88 AU - 1.9 AU

Year: 922 Days

Day: 12.3 Hours

Environment

Temp: -48 °C

Axial Tilt: 32 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.51

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 2.57 AU - 4.15 AU

Year: 2185 Days

Day: 23.8 Hours

Environment

Temp: -95 °C

Axial Tilt: 10.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 3.93 AU - 4.39 AU

Year: 3010 Days

Day: 21 Hours

Environment

Temp: -122 °C

Axial Tilt: 8.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,650,651 km

• M1: 83,775 km (0.044 R)

Asteroid Belt

Center: 4.89 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.2

Radius: 10.3

Gravity: 5.95 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 5.34 AU - 5.88 AU

Year: 4714 Days

Day: 8.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,650,651 km

• M1: 133,292 km (0.111 R)
• M2: 599,887 km (0.048 R)
• M3: 1,032,525 km (0.1 R)
• M4: 1,695,841 km (0.053 R)
• M5: 2,182,035 km (0.065 R)
• M6: 3,123,155 km (0.105 R)
• M7: 3,497,897 km (0.111 R)
• M8: 4,059,787 km (0.089 R)
• M9: 4,630,802 km (0.035 R)
• M10: 5,067,029 km (0.104 R)
• M11: 6,417,898 km (0.066 R)
• M12: 8,067,364 km (0.062 R)
• M13: 9,366,921 km (0.103 R)
• M14: 14,799,119 km (0.115 R)
• M15: 19,490,359 km (0.087 R)
• M16: 21,885,271 km (0.081 R)
• M17: 22,314,617 km (0.037 R)
• M18: 27,999,485 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.6

Radius: 9.5

Gravity: 7.03 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 9.76 AU - 12.38 AU

Year: 13066 Days

Day: 6.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 70,650,651 km

• M1: 118,182 km (0.107 R)
• M2: 427,252 km (0.112 R)
• M3: 736,171 km (0.069 R)
• M4: 1,607,878 km (0.066 R)
• M5: 1,944,324 km (0.079 R)
• M6: 3,449,428 km (0.057 R)
• M7: 4,897,834 km (0.103 R)
• M8: 5,794,075 km (0.092 R)
• M9: 7,084,357 km (0.11 R)
• M10: 10,169,663 km (0.061 R)
• M11: 10,713,003 km (0.08 R)
• M12: 12,155,874 km (0.112 R)
• M13: 13,464,556 km (0.058 R)
• M14: 13,855,156 km (0.111 R)
• M15: 14,659,095 km (0.089 R)
• M16: 16,359,724 km (0.119 R)
• M17: 26,059,650 km (0.116 R)
• M18: 26,666,868 km (0.106 R)
• M19: 28,226,126 km (0.077 R)
• M20: 30,065,731 km (0.092 R)
• M21: 33,742,997 km (0.114 R)
• M22: 36,690,075 km (0.107 R)
• M23: 38,096,594 km (0.115 R)
• M24: 40,206,073 km (0.102 R)
• M25: 43,231,989 km (0.076 R)
• M26: 45,964,843 km (0.101 R)
• M27: 47,899,742 km (0.087 R)
• M28: 51,296,661 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.4

Radius: 10.5

Gravity: 7.45 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 12.19 AU - 13.51 AU

Year: 16342 Days

Day: 5.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 70,650,651 km

• M1: 148,999 km (0.08 R)
• M2: 569,818 km (0.11 R)
• M3: 1,534,126 km (0.096 R)
• M4: 1,904,381 km (0.119 R)
• M5: 2,641,898 km (0.103 R)
• M6: 3,393,478 km (0.036 R)
• M7: 4,345,968 km (0.118 R)
• M8: 5,659,587 km (0.117 R)
• M9: 6,137,701 km (0.089 R)
• M10: 6,642,744 km (0.093 R)
• M11: 9,051,718 km (0.093 R)
• M12: 11,672,374 km (0.078 R)
• M13: 13,537,111 km (0.089 R)
• M14: 17,019,002 km (0.112 R)
• M15: 17,596,450 km (0.047 R)
• M16: 22,599,152 km (0.117 R)
• M17: 23,499,133 km (0.103 R)
• M18: 24,215,407 km (0.062 R)
• M19: 24,841,026 km (0.083 R)
• M20: 27,676,952 km (0.087 R)
• M21: 28,591,295 km (0.098 R)
• M22: 29,525,683 km (0.076 R)
• M23: 40,017,430 km (0.109 R)
• M24: 44,517,484 km (0.108 R)
• M25: 45,141,905 km (0.078 R)
• M26: 47,050,326 km (0.083 R)
• M27: 50,687,648 km (0.104 R)
• M28: 51,539,758 km (0.094 R)
• M29: 54,508,228 km (0.048 R)
• M30: 57,404,593 km (0.084 R)
• M31: 64,891,218 km (0.113 R)
• M32: 65,895,768 km (0.044 R)

Kuiper Belt

Range: 30.9 - 49.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 477 - 12,366 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit