🌌 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: 1.36

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.48 AU - 0.62 AU

Year: 259 Days

Day: 45.4 Hours

Environment

Temp: -117 °C

Axial Tilt: 37 °

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: 1.09

Radius: 1.04

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.53 AU - 0.69 AU

Year: 303 Days

Day: 29.6 Hours

Environment

Temp: -132 °C

Axial Tilt: 9.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.8

Radius: 13.8

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.56 AU - 0.84 AU

Year: 372 Days

Day: 13.1 Hours

Environment

Temp: -129 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,249,058 km

• M1: 171,589 km (0.118 R)
• M2: 764,894 km (0.091 R)
• M3: 1,293,124 km (0.099 R)
• M4: 1,800,859 km (0.08 R)
• M5: 2,257,881 km (0.095 R)
• M6: 2,997,343 km (0.081 R)
• M7: 3,757,151 km (0.066 R)
• M8: 4,296,750 km (0.072 R)
• M9: 5,096,799 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.8

Radius: 12.1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.76 AU - 0.9 AU

Year: 481 Days

Day: 11 Hours

Environment

Temp: -151 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 62,249,058 km

• M1: 150,495 km (0.112 R)
• M2: 560,842 km (0.099 R)
• M3: 1,010,085 km (0.112 R)
• M4: 1,405,173 km (0.1 R)
• M5: 1,845,888 km (0.066 R)
• M6: 2,355,867 km (0.083 R)
• M7: 2,922,394 km (0.114 R)
• M8: 3,770,914 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.6

Radius: 10

Gravity: 8.63 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 2.73 AU - 3.71 AU

Year: 3674 Days

Day: 10.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 62,249,058 km

• M1: 124,465 km (0.092 R)
• M2: 710,739 km (0.087 R)
• M3: 1,238,072 km (0.115 R)
• M4: 1,802,954 km (0.082 R)
• M5: 2,548,549 km (0.072 R)
• M6: 3,028,758 km (0.089 R)
• M7: 3,349,048 km (0.115 R)
• M8: 3,883,262 km (0.083 R)
• M9: 4,593,403 km (0.09 R)
• M10: 7,149,881 km (0.09 R)
• M11: 7,756,500 km (0.056 R)
• M12: 8,143,958 km (0.032 R)
• M13: 8,693,132 km (0.092 R)
• M14: 9,072,662 km (0.029 R)
• M15: 9,542,848 km (0.087 R)
• M16: 11,863,111 km (0.092 R)
• M17: 13,055,107 km (0.115 R)
• M18: 14,220,774 km (0.079 R)
• M19: 15,843,611 km (0.099 R)
• M20: 16,296,594 km (0.092 R)
• M21: 16,816,297 km (0.105 R)
• M22: 19,006,858 km (0.09 R)
• M23: 21,518,457 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 822.5

Radius: 4.6

Gravity: 38.87 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 6.21 AU - 9.13 AU

Year: 13506 Days

Day: 23.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 62,249,058 km

• M1: 57,296 km (0.116 R)
• M2: 246,836 km (0.059 R)
• M3: 463,903 km (0.073 R)
• M4: 1,076,357 km (0.075 R)
• M5: 1,336,507 km (0.1 R)
• M6: 2,211,954 km (0.034 R)
• M7: 3,416,217 km (0.037 R)
• M8: 4,406,555 km (0.113 R)
• M9: 4,664,910 km (0.067 R)
• M10: 5,036,512 km (0.111 R)
• M11: 10,291,885 km (0.103 R)
• M12: 10,689,217 km (0.091 R)
• M13: 11,214,754 km (0.119 R)
• M14: 12,636,233 km (0.068 R)
• M15: 13,897,642 km (0.102 R)
• M16: 14,951,110 km (0.088 R)
• M17: 16,513,810 km (0.108 R)
• M18: 16,979,508 km (0.107 R)
• M19: 19,526,112 km (0.086 R)
• M20: 20,134,527 km (0.053 R)
• M21: 21,297,650 km (0.083 R)
• M22: 21,849,367 km (0.037 R)
• M23: 26,085,082 km (0.086 R)
• M24: 31,542,561 km (0.097 R)
• M25: 32,258,986 km (0.064 R)
• M26: 33,724,297 km (0.106 R)
• M27: 34,725,555 km (0.067 R)
• M28: 44,793,193 km (0.04 R)
• M29: 50,081,627 km (0.112 R)
• M30: 61,876,671 km (0.045 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 324 - 18,936 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit