🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.07

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.6 AU - 0.8 AU

Year: 215 Days

Day: 27 Hours

Environment

Temp: 159 °C

Axial Tilt: 31.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 44,731,314 km

• M1: 72,256 km (0.052 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.26

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.57 AU - 0.87 AU

Year: 224 Days

Day: 36.3 Hours

Environment

Temp: 199 °C

Axial Tilt: 41.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.76

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 2.41 AU - 2.87 AU

Year: 1575 Days

Day: 30.8 Hours

Environment

Temp: -86 °C

Axial Tilt: 16.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 44,731,314 km

• M1: 50,115 km (0.108 R)
• M2: 254,915 km (0.1 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 2.3 AU - 3.26 AU

Year: 1702 Days

Day: 17.7 Hours

Environment

Temp: -104 °C

Axial Tilt: 37 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 44,731,314 km

• M1: 34,557 km (0.089 R)
• M2: 201,359 km (0.095 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 4.24 AU - 4.58 AU

Year: 3400 Days

Day: 27.3 Hours

Environment

Temp: -137 °C

Axial Tilt: 12.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.6

Radius: 8.7

Gravity: 10.09 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 4.68 AU - 5.18 AU

Year: 4018 Days

Day: 10.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 44,731,314 km

• M1: 112,946 km (0.12 R)
• M2: 458,069 km (0.069 R)
• M3: 807,230 km (0.079 R)
• M4: 1,139,786 km (0.058 R)
• M5: 1,707,211 km (0.118 R)
• M6: 2,731,956 km (0.114 R)
• M7: 3,559,083 km (0.103 R)
• M8: 3,942,203 km (0.076 R)
• M9: 4,423,908 km (0.083 R)
• M10: 6,439,590 km (0.114 R)
• M11: 7,075,530 km (0.066 R)
• M12: 8,107,008 km (0.094 R)
• M13: 8,583,926 km (0.09 R)
• M14: 9,961,124 km (0.069 R)
• M15: 10,551,287 km (0.075 R)
• M16: 12,128,797 km (0.068 R)
• M17: 12,899,974 km (0.083 R)
• M18: 14,593,272 km (0.117 R)
• M19: 17,134,043 km (0.107 R)
• M20: 18,042,700 km (0.113 R)
• M21: 19,175,156 km (0.083 R)
• M22: 19,758,737 km (0.071 R)
• M23: 20,893,437 km (0.064 R)
• M24: 23,000,972 km (0.057 R)
• M25: 23,882,253 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24

Radius: 12.9

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 5.82 AU - 7.76 AU

Year: 6495 Days

Day: 7.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,731,314 km

• M1: 160,369 km (0.119 R)
• M2: 748,139 km (0.104 R)
• M3: 1,182,870 km (0.111 R)
• M4: 2,059,364 km (0.108 R)
• M5: 2,925,686 km (0.037 R)
• M6: 6,651,869 km (0.057 R)
• M7: 7,695,913 km (0.079 R)
• M8: 10,393,761 km (0.055 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.9

Radius: 11.4

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 6.07 AU - 9.37 AU

Year: 7874 Days

Day: 12.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 44,731,314 km

• M1: 150,944 km (0.113 R)
• M2: 855,401 km (0.099 R)
• M3: 1,406,968 km (0.054 R)
• M4: 1,818,063 km (0.065 R)
• M5: 2,222,127 km (0.073 R)
• M6: 2,931,819 km (0.075 R)
• M7: 3,862,916 km (0.077 R)
• M8: 6,668,026 km (0.052 R)
• M9: 7,519,986 km (0.102 R)
• M10: 8,141,415 km (0.077 R)
• M11: 9,918,339 km (0.088 R)
• M12: 11,995,804 km (0.077 R)
• M13: 14,348,530 km (0.108 R)
• M14: 17,559,200 km (0.105 R)
• M15: 22,209,749 km (0.077 R)
• M16: 22,800,810 km (0.118 R)
• M17: 24,102,760 km (0.114 R)
• M18: 25,637,485 km (0.112 R)
• M19: 29,707,145 km (0.084 R)
• M20: 30,840,199 km (0.032 R)
• M21: 34,976,431 km (0.091 R)
• M22: 35,432,256 km (0.103 R)
• M23: 38,010,725 km (0.074 R)
• M24: 38,492,579 km (0.103 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 545 - 10,850 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit