🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.51 AU - 0.59 AU

Year: 268 Days

Day: 47.8 Hours

Environment

Temp: -115 °C

Axial Tilt: 31.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,222,229 km

• M1: 30,368 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.9

Radius: 10.3

Gravity: 7.98 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.65 AU - 1.01 AU

Year: 496 Days

Day: 10.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 72.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,222,229 km

• M1: 128,056 km (0.104 R)
• M2: 647,759 km (0.06 R)
• M3: 1,053,917 km (0.08 R)
• M4: 1,521,111 km (0.059 R)
• M5: 2,043,806 km (0.072 R)
• M6: 2,387,133 km (0.084 R)
• M7: 2,992,705 km (0.1 R)
• M8: 3,671,132 km (0.071 R)
• M9: 3,998,003 km (0.103 R)
• M10: 4,344,472 km (0.025 R)
• M11: 5,384,925 km (0.078 R)
• M12: 5,826,687 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431.3

Radius: 13.9

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.74 AU - 1 AU

Year: 532 Days

Day: 5.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,222,229 km

• M1: 172,935 km (0.111 R)
• M2: 637,137 km (0.115 R)
• M3: 1,158,187 km (0.107 R)
• M4: 1,962,275 km (0.107 R)
• M5: 2,649,079 km (0.032 R)
• M6: 3,126,446 km (0.087 R)
• M7: 3,849,153 km (0.116 R)
• M8: 5,257,767 km (0.076 R)
• M9: 5,763,108 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.4

Radius: 12.8

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.02 AU - 1.58 AU

Year: 972 Days

Day: 11.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,222,229 km

• M1: 159,172 km (0.109 R)
• M2: 620,831 km (0.119 R)
• M3: 1,199,775 km (0.079 R)
• M4: 1,972,598 km (0.038 R)
• M5: 2,573,831 km (0.106 R)
• M6: 3,091,290 km (0.101 R)
• M7: 3,585,861 km (0.102 R)
• M8: 4,457,717 km (0.096 R)
• M9: 5,310,874 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.4

Radius: 14.5

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.67 AU - 2.43 AU

Year: 1925 Days

Day: 14.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,222,229 km

• M1: 181,013 km (0.083 R)
• M2: 644,318 km (0.11 R)
• M3: 1,111,363 km (0.089 R)
• M4: 2,316,822 km (0.047 R)
• M5: 2,990,611 km (0.116 R)
• M6: 3,942,652 km (0.044 R)
• M7: 6,735,345 km (0.064 R)
• M8: 8,061,829 km (0.097 R)
• M9: 9,869,570 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.8

Radius: 10.9

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 3.78 AU - 4.98 AU

Year: 6013 Days

Day: 13.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,222,229 km

• M1: 135,536 km (0.08 R)
• M2: 495,618 km (0.111 R)
• M3: 909,256 km (0.089 R)
• M4: 1,451,847 km (0.101 R)
• M5: 2,053,231 km (0.108 R)
• M6: 2,481,380 km (0.054 R)
• M7: 3,699,555 km (0.062 R)
• M8: 4,782,345 km (0.119 R)
• M9: 5,140,781 km (0.107 R)
• M10: 6,039,266 km (0.082 R)
• M11: 6,814,183 km (0.113 R)
• M12: 7,269,409 km (0.114 R)
• M13: 8,083,671 km (0.045 R)
• M14: 8,561,785 km (0.097 R)
• M15: 9,965,313 km (0.057 R)
• M16: 10,665,431 km (0.106 R)
• M17: 11,716,356 km (0.063 R)
• M18: 12,877,834 km (0.111 R)
• M19: 14,481,822 km (0.058 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 822.7

Radius: 5

Gravity: 32.91 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 5.53 AU - 6.59 AU

Year: 9786 Days

Day: 18 Hours

Environment

Temp: -213 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 50,222,229 km

• M1: 62,682 km (0.115 R)
• M2: 321,935 km (0.08 R)
• M3: 494,271 km (0.066 R)
• M4: 1,211,144 km (0.117 R)
• M5: 1,630,018 km (0.117 R)
• M6: 2,104,094 km (0.092 R)
• M7: 3,177,010 km (0.105 R)
• M8: 3,369,692 km (0.077 R)
• M9: 3,805,022 km (0.038 R)
• M10: 7,034,092 km (0.064 R)
• M11: 12,308,314 km (0.065 R)
• M12: 18,862,496 km (0.069 R)
• M13: 20,223,837 km (0.11 R)
• M14: 20,719,604 km (0.092 R)
• M15: 21,138,927 km (0.104 R)
• M16: 21,478,365 km (0.096 R)
• M17: 22,081,244 km (0.117 R)
• M18: 22,872,766 km (0.115 R)
• M19: 24,233,808 km (0.079 R)
• M20: 25,170,590 km (0.1 R)
• M21: 26,424,220 km (0.109 R)
• M22: 31,855,670 km (0.106 R)
• M23: 39,248,647 km (0.059 R)
• M24: 44,440,591 km (0.104 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 19,872 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit