🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.51 AU - 0.75 AU

Year: 318 Days

Day: 18 Hours

Environment

Temp: -141 °C

Axial Tilt: 11.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.7

Radius: 12.2

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.84 AU - 1.16 AU

Year: 636 Days

Day: 7.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,096,328 km

• M1: 151,692 km (0.073 R)
• M2: 622,626 km (0.108 R)
• M3: 1,005,746 km (0.093 R)
• M4: 1,674,898 km (0.099 R)
• M5: 2,148,375 km (0.117 R)
• M6: 3,685,044 km (0.111 R)
• M7: 4,091,203 km (0.039 R)
• M8: 4,797,604 km (0.074 R)
• M9: 7,089,593 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.2

Radius: 10

Gravity: 9.63 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.19 AU - 1.29 AU

Year: 878 Days

Day: 7.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 80,096,328 km

• M1: 124,465 km (0.119 R)
• M2: 573,857 km (0.111 R)
• M3: 957,875 km (0.114 R)
• M4: 1,985,164 km (0.12 R)
• M5: 3,523,479 km (0.025 R)
• M6: 3,940,258 km (0.091 R)
• M7: 4,985,349 km (0.052 R)
• M8: 6,118,553 km (0.076 R)
• M9: 7,715,809 km (0.091 R)
• M10: 8,475,318 km (0.104 R)
• M11: 9,255,171 km (0.107 R)
• M12: 9,900,836 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.9

Radius: 11.6

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.82 AU - 2.86 AU

Year: 2276 Days

Day: 9.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 80,096,328 km

• M1: 144,212 km (0.088 R)
• M2: 940,671 km (0.034 R)
• M3: 1,417,141 km (0.114 R)
• M4: 2,312,933 km (0.11 R)
• M5: 2,698,596 km (0.098 R)
• M6: 7,854,337 km (0.116 R)
• M7: 9,063,537 km (0.107 R)
• M8: 12,663,011 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 602.1

Radius: 13.1

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 3.32 AU - 3.84 AU

Year: 4307 Days

Day: 5.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 80,096,328 km

• M1: 167,250 km (0.119 R)
• M2: 824,284 km (0.106 R)
• M3: 1,250,189 km (0.116 R)
• M4: 1,766,751 km (0.105 R)
• M5: 4,516,061 km (0.11 R)
• M6: 6,763,170 km (0.053 R)
• M7: 7,243,678 km (0.092 R)
• M8: 12,135,978 km (0.113 R)
• M9: 13,386,915 km (0.111 R)
• M10: 15,808,157 km (0.104 R)
• M11: 16,427,791 km (0.03 R)
• M12: 18,508,249 km (0.084 R)
• M13: 19,837,725 km (0.049 R)
• M14: 22,403,777 km (0.027 R)
• M15: 23,402,792 km (0.06 R)
• M16: 25,108,058 km (0.071 R)
• M17: 25,874,747 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.4

Radius: 9.5

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 5.5 AU - 6.18 AU

Year: 8973 Days

Day: 9.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 80,096,328 km

• M1: 121,922 km (0.057 R)
• M2: 776,862 km (0.055 R)
• M3: 1,846,038 km (0.106 R)
• M4: 2,511,449 km (0.084 R)
• M5: 3,380,164 km (0.068 R)
• M6: 3,846,311 km (0.117 R)
• M7: 4,173,930 km (0.096 R)
• M8: 5,340,943 km (0.062 R)
• M9: 6,000,221 km (0.079 R)
• M10: 7,363,207 km (0.078 R)
• M11: 10,136,752 km (0.089 R)
• M12: 10,727,364 km (0.108 R)
• M13: 14,671,362 km (0.11 R)
• M14: 14,998,832 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 995.7

Radius: 6.9

Gravity: 20.91 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 9.07 AU - 9.45 AU

Year: 17916 Days

Day: 20.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 80,096,328 km

• M1: 85,869 km (0.118 R)
• M2: 372,349 km (0.116 R)
• M3: 785,239 km (0.064 R)
• M4: 2,355,867 km (0.096 R)
• M5: 2,987,320 km (0.058 R)
• M6: 3,575,389 km (0.106 R)
• M7: 3,818,785 km (0.05 R)
• M8: 4,373,045 km (0.049 R)
• M9: 5,016,914 km (0.062 R)
• M10: 5,681,278 km (0.067 R)
• M11: 8,445,847 km (0.08 R)
• M12: 9,499,016 km (0.105 R)
• M13: 12,269,269 km (0.099 R)
• M14: 12,545,128 km (0.076 R)
• M15: 13,986,952 km (0.112 R)
• M16: 14,516,678 km (0.101 R)
• M17: 15,138,407 km (0.064 R)
• M18: 19,339,714 km (0.101 R)
• M19: 20,766,578 km (0.115 R)
• M20: 26,255,922 km (0.102 R)
• M21: 26,829,780 km (0.063 R)
• M22: 27,294,879 km (0.059 R)
• M23: 38,347,769 km (0.092 R)
• M24: 40,287,903 km (0.066 R)
• M25: 51,511,484 km (0.106 R)
• M26: 58,025,424 km (0.119 R)
• M27: 62,186,040 km (0.119 R)
• M28: 73,788,851 km (0.114 R)
• M29: 77,484,965 km (0.089 R)
• M30: 78,427,880 km (0.104 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 493 - 20,331 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit