🌌 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: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.65

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.57 AU - 0.57 AU

Year: 282 Days

Day: 17.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 47.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.56 AU - 0.66 AU

Year: 313 Days

Day: 21.1 Hours

Environment

Temp: -129 °C

Axial Tilt: 37.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,572,306 km

• M1: 149,448 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.3

Radius: 10.2

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.67 AU - 1.01 AU

Year: 505 Days

Day: 11 Hours

Environment

Temp: -155 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,572,306 km

• M1: 127,457 km (0.088 R)
• M2: 661,522 km (0.116 R)
• M3: 989,141 km (0.107 R)
• M4: 1,320,052 km (0.096 R)
• M5: 2,048,593 km (0.096 R)
• M6: 2,440,390 km (0.111 R)
• M7: 2,903,994 km (0.101 R)
• M8: 3,352,488 km (0.086 R)
• M9: 3,754,757 km (0.091 R)
• M10: 4,274,310 km (0.113 R)
• M11: 4,687,350 km (0.102 R)
• M12: 5,014,371 km (0.035 R)
• M13: 5,542,302 km (0.098 R)
• M14: 5,980,324 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.6

Radius: 13.5

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.35 AU - 3.85 AU

Year: 4481 Days

Day: 8.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 68,572,306 km

• M1: 168,148 km (0.075 R)
• M2: 683,662 km (0.097 R)
• M3: 1,146,668 km (0.085 R)
• M4: 1,659,938 km (0.115 R)
• M5: 2,716,398 km (0.053 R)
• M6: 3,650,338 km (0.101 R)
• M7: 5,347,376 km (0.104 R)
• M8: 5,808,885 km (0.043 R)
• M9: 9,355,552 km (0.09 R)
• M10: 10,564,751 km (0.033 R)
• M11: 12,808,121 km (0.117 R)
• M12: 14,452,650 km (0.054 R)
• M13: 15,352,930 km (0.037 R)
• M14: 17,441,466 km (0.084 R)
• M15: 20,688,189 km (0.047 R)
• M16: 21,968,896 km (0.104 R)
• M17: 23,301,813 km (0.045 R)
• M18: 24,171,126 km (0.111 R)
• M19: 24,837,136 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.2

Radius: 14.5

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.17 AU - 4.59 AU

Year: 6013 Days

Day: 11.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,572,306 km

• M1: 180,415 km (0.107 R)
• M2: 647,609 km (0.055 R)
• M3: 1,121,834 km (0.087 R)
• M4: 1,802,056 km (0.064 R)
• M5: 2,767,112 km (0.073 R)
• M6: 3,636,126 km (0.108 R)
• M7: 4,481,354 km (0.095 R)
• M8: 5,315,063 km (0.099 R)
• M9: 6,660,247 km (0.102 R)
• M10: 9,109,014 km (0.107 R)
• M11: 11,165,387 km (0.069 R)
• M12: 12,156,323 km (0.084 R)
• M13: 12,849,111 km (0.104 R)
• M14: 14,097,655 km (0.106 R)
• M15: 16,179,309 km (0.117 R)
• M16: 16,957,218 km (0.058 R)
• M17: 17,822,642 km (0.102 R)
• M18: 19,776,390 km (0.082 R)
• M19: 20,596,485 km (0.073 R)
• M20: 21,368,261 km (0.098 R)
• M21: 23,646,935 km (0.101 R)
• M22: 24,260,436 km (0.071 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 594.6

Radius: 3.6

Gravity: 45.88 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 9.14 AU - 9.3 AU

Year: 18366 Days

Day: 24.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 68,572,306 km

• M1: 44,730 km (0.063 R)
• M2: 191,934 km (0.084 R)
• M3: 375,491 km (0.08 R)
• M4: 784,491 km (0.101 R)
• M5: 1,167,761 km (0.095 R)
• M6: 1,349,074 km (0.083 R)
• M7: 1,549,086 km (0.074 R)
• M8: 1,894,956 km (0.081 R)
• M9: 2,269,250 km (0.097 R)
• M10: 2,762,025 km (0.066 R)
• M11: 3,008,114 km (0.074 R)
• M12: 3,487,874 km (0.075 R)
• M13: 5,268,239 km (0.048 R)
• M14: 6,002,465 km (0.119 R)
• M15: 6,499,878 km (0.103 R)
• M16: 8,922,765 km (0.096 R)
• M17: 11,950,775 km (0.098 R)
• M18: 15,446,728 km (0.083 R)
• M19: 19,478,690 km (0.078 R)
• M20: 20,379,718 km (0.105 R)
• M21: 21,026,729 km (0.105 R)
• M22: 22,458,979 km (0.091 R)
• M23: 22,950,408 km (0.081 R)
• M24: 24,883,811 km (0.077 R)
• M25: 25,198,565 km (0.119 R)
• M26: 26,703,220 km (0.083 R)
• M27: 30,245,548 km (0.105 R)
• M28: 34,347,372 km (0.058 R)
• M29: 34,737,673 km (0.08 R)
• M30: 35,527,101 km (0.12 R)
• M31: 37,690,585 km (0.059 R)
• M32: 38,945,412 km (0.051 R)
• M33: 40,371,828 km (0.089 R)
• M34: 45,170,329 km (0.048 R)
• M35: 47,867,728 km (0.088 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 549 - 13,717 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit