🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.51 AU - 0.51 AU

Year: 232 Days

Day: 37.8 Hours

Environment

Temp: -123 °C

Axial Tilt: 47.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,400,651 km

• M1: 44,131 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 563.7

Radius: 10.4

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.64 AU - 0.98 AU

Year: 464 Days

Day: 13 Hours

Environment

Temp: -140 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,400,651 km

• M1: 129,402 km (0.058 R)
• M2: 462,856 km (0.064 R)
• M3: 796,010 km (0.108 R)
• M4: 1,390,363 km (0.112 R)
• M5: 1,780,813 km (0.102 R)
• M6: 2,157,500 km (0.091 R)
• M7: 2,607,042 km (0.104 R)
• M8: 3,334,387 km (0.096 R)
• M9: 4,205,495 km (0.114 R)
• M10: 5,158,434 km (0.101 R)
• M11: 5,495,478 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.6

Radius: 8.4

Gravity: 10.68 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.87 AU - 1.39 AU

Year: 764 Days

Day: 6.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 52,400,651 km

• M1: 104,419 km (0.078 R)
• M2: 456,573 km (0.115 R)
• M3: 747,391 km (0.106 R)
• M4: 1,127,519 km (0.072 R)
• M5: 1,658,741 km (0.072 R)
• M6: 2,122,345 km (0.112 R)
• M7: 2,433,808 km (0.103 R)
• M8: 2,763,970 km (0.118 R)
• M9: 3,847,956 km (0.115 R)
• M10: 4,186,197 km (0.095 R)
• M11: 4,958,122 km (0.116 R)
• M12: 5,378,043 km (0.111 R)
• M13: 5,881,291 km (0.117 R)
• M14: 6,373,168 km (0.098 R)
• M15: 7,604,359 km (0.074 R)
• M16: 8,802,189 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.1

Radius: 10

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.2 AU - 1.2 AU

Year: 836 Days

Day: 12 Hours

Environment

Temp: -172 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,400,651 km

• M1: 124,316 km (0.104 R)
• M2: 476,469 km (0.081 R)
• M3: 809,025 km (0.103 R)
• M4: 1,148,612 km (0.104 R)
• M5: 1,612,216 km (0.118 R)
• M6: 2,336,420 km (0.069 R)
• M7: 3,551,453 km (0.026 R)
• M8: 3,906,150 km (0.078 R)
• M9: 4,587,867 km (0.106 R)
• M10: 5,222,462 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.1

Radius: 11.6

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.34 AU - 4.32 AU

Year: 4766 Days

Day: 6 Hours

Environment

Temp: -209 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,400,651 km

• M1: 144,212 km (0.072 R)
• M2: 511,176 km (0.102 R)
• M3: 1,042,099 km (0.087 R)
• M4: 1,673,701 km (0.107 R)
• M5: 2,202,230 km (0.096 R)
• M6: 2,822,463 km (0.071 R)
• M7: 3,991,421 km (0.11 R)
• M8: 4,437,671 km (0.11 R)
• M9: 4,969,492 km (0.113 R)
• M10: 5,861,693 km (0.054 R)
• M11: 6,408,773 km (0.095 R)
• M12: 8,750,428 km (0.07 R)
• M13: 12,477,809 km (0.101 R)
• M14: 13,488,193 km (0.084 R)
• M15: 14,120,244 km (0.094 R)
• M16: 19,045,604 km (0.104 R)
• M17: 19,440,692 km (0.057 R)
• M18: 20,247,324 km (0.101 R)
• M19: 23,397,406 km (0.076 R)
• M20: 24,619,621 km (0.07 R)
• M21: 28,973,068 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.4

Radius: 11.6

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 3.54 AU - 4.26 AU

Year: 4897 Days

Day: 7.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,400,651 km

• M1: 165,754 km (0.078 R)
• M2: 591,360 km (0.055 R)
• M3: 1,601,595 km (0.111 R)
• M4: 2,315,326 km (0.083 R)
• M5: 3,287,114 km (0.091 R)
• M6: 4,037,796 km (0.114 R)
• M7: 4,999,411 km (0.111 R)
• M8: 5,992,741 km (0.114 R)
• M9: 6,401,293 km (0.034 R)
• M10: 8,548,471 km (0.101 R)
• M11: 9,646,519 km (0.106 R)
• M12: 11,181,394 km (0.103 R)
• M13: 12,873,196 km (0.065 R)
• M14: 13,755,225 km (0.107 R)
• M15: 14,365,285 km (0.092 R)
• M16: 20,498,798 km (0.03 R)
• M17: 22,319,554 km (0.097 R)
• M18: 22,738,428 km (0.094 R)
• M19: 24,099,469 km (0.063 R)
• M20: 24,466,582 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 518.5

Radius: 4.4

Gravity: 26.78 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 6.35 AU - 8.71 AU

Year: 13138 Days

Day: 17.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,400,651 km

• M1: 54,753 km (0.09 R)
• M2: 359,932 km (0.116 R)
• M3: 985,401 km (0.096 R)
• M4: 1,155,344 km (0.068 R)
• M5: 1,412,204 km (0.079 R)
• M6: 2,040,365 km (0.114 R)
• M7: 3,280,831 km (0.109 R)
• M8: 4,792,966 km (0.075 R)
• M9: 5,050,873 km (0.069 R)
• M10: 6,288,945 km (0.092 R)
• M11: 16,586,664 km (0.12 R)
• M12: 24,705,041 km (0.059 R)
• M13: 28,916,520 km (0.108 R)
• M14: 30,969,751 km (0.078 R)
• M15: 32,315,234 km (0.116 R)
• M16: 38,854,457 km (0.09 R)
• M17: 40,683,141 km (0.104 R)
• M18: 42,023,837 km (0.062 R)
• M19: 42,705,106 km (0.098 R)
• M20: 42,979,767 km (0.087 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 427 - 19,887 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit