🌌 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: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.74

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.47 AU - 0.69 AU

Year: 285 Days

Day: 23.3 Hours

Environment

Temp: -128 °C

Axial Tilt: 26.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.5

Radius: 12.9

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.63 AU - 0.95 AU

Year: 453 Days

Day: 8.8 Hours

Environment

Temp: -137 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,158,822 km

• M1: 160,967 km (0.116 R)
• M2: 644,318 km (0.074 R)
• M3: 1,331,271 km (0.092 R)
• M4: 2,185,475 km (0.087 R)
• M5: 3,425,492 km (0.039 R)
• M6: 4,058,291 km (0.108 R)
• M7: 4,965,602 km (0.103 R)
• M8: 5,459,724 km (0.099 R)

Planet 3 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 740.2

Radius: 4.7

Gravity: 33.51 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 6.7 AU - 8.7 AU

Year: 13796 Days

Day: 15.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 71,158,822 km

• M1: 58,942 km (0.109 R)
• M2: 248,033 km (0.082 R)
• M3: 672,143 km (0.112 R)
• M4: 976,126 km (0.104 R)
• M5: 1,178,981 km (0.084 R)
• M6: 1,352,814 km (0.095 R)
• M7: 2,714,453 km (0.066 R)
• M8: 3,453,018 km (0.075 R)
• M9: 3,698,658 km (0.09 R)
• M10: 4,014,758 km (0.059 R)
• M11: 4,667,603 km (0.062 R)
• M12: 4,934,187 km (0.082 R)
• M13: 5,644,926 km (0.064 R)
• M14: 6,793,239 km (0.045 R)
• M15: 12,125,805 km (0.079 R)
• M16: 14,154,801 km (0.09 R)
• M17: 14,783,860 km (0.052 R)
• M18: 15,725,130 km (0.113 R)
• M19: 20,767,924 km (0.105 R)
• M20: 23,944,037 km (0.034 R)
• M21: 25,340,982 km (0.103 R)
• M22: 26,580,699 km (0.069 R)
• M23: 28,077,725 km (0.105 R)
• M24: 31,945,129 km (0.084 R)
• M25: 36,931,974 km (0.077 R)
• M26: 40,159,997 km (0.102 R)
• M27: 40,855,478 km (0.036 R)
• M28: 51,777,917 km (0.045 R)
• M29: 52,601,454 km (0.079 R)
• M30: 55,638,590 km (0.06 R)
• M31: 58,968,937 km (0.12 R)
• M32: 59,327,075 km (0.107 R)
• M33: 59,686,708 km (0.071 R)

Planet 4 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 967.9

Radius: 5.8

Gravity: 28.77 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 7.72 AU - 8.72 AU

Year: 15217 Days

Day: 19.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 71,158,822 km

• M1: 72,256 km (0.07 R)
• M2: 312,061 km (0.067 R)
• M3: 1,666,371 km (0.1 R)
• M4: 2,940,795 km (0.12 R)
• M5: 3,500,590 km (0.042 R)
• M6: 4,003,688 km (0.076 R)
• M7: 4,256,508 km (0.116 R)
• M8: 5,414,396 km (0.093 R)
• M9: 5,724,063 km (0.108 R)
• M10: 6,168,967 km (0.092 R)
• M11: 6,506,759 km (0.106 R)
• M12: 8,082,025 km (0.098 R)
• M13: 9,118,888 km (0.112 R)
• M14: 10,417,547 km (0.108 R)
• M15: 11,770,660 km (0.094 R)
• M16: 18,707,064 km (0.116 R)
• M17: 21,548,227 km (0.1 R)
• M18: 29,942,014 km (0.076 R)
• M19: 32,273,347 km (0.092 R)
• M20: 33,033,903 km (0.076 R)
• M21: 34,987,651 km (0.037 R)
• M22: 37,293,552 km (0.119 R)
• M23: 48,681,092 km (0.112 R)
• M24: 57,435,858 km (0.097 R)
• M25: 64,550,584 km (0.065 R)
• M26: 66,978,407 km (0.086 R)
• M27: 70,945,743 km (0.082 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 351 - 10,545 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit