🌌 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: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.52 AU - 0.76 AU

Year: 336 Days

Day: 46.5 Hours

Environment

Temp: -122 °C

Axial Tilt: 17.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.6

Radius: 8.4

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.64 AU - 0.78 AU

Year: 392 Days

Day: 14.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 58,334,684 km

• M1: 104,569 km (0.098 R)
• M2: 761,004 km (0.081 R)
• M3: 1,186,461 km (0.025 R)
• M4: 1,814,173 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821

Radius: 10.9

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.65 AU - 0.79 AU

Year: 401 Days

Day: 8.1 Hours

Environment

Temp: -132 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,334,684 km

• M1: 135,536 km (0.118 R)
• M2: 500,106 km (0.09 R)
• M3: 859,589 km (0.052 R)
• M4: 1,524,402 km (0.092 R)
• M5: 1,911,861 km (0.09 R)
• M6: 2,374,717 km (0.033 R)
• M7: 3,096,826 km (0.084 R)
• M8: 4,147,451 km (0.114 R)
• M9: 5,022,150 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.4

Radius: 12

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.81 AU - 1.99 AU

Year: 1718 Days

Day: 10.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 58,334,684 km

• M1: 149,448 km (0.079 R)
• M2: 562,638 km (0.115 R)
• M3: 1,020,557 km (0.059 R)
• M4: 1,429,258 km (0.068 R)
• M5: 2,155,705 km (0.028 R)
• M6: 2,917,757 km (0.109 R)
• M7: 3,822,375 km (0.106 R)
• M8: 4,751,228 km (0.053 R)
• M9: 5,863,937 km (0.103 R)
• M10: 6,284,756 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.1

Radius: 11.2

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 2.73 AU - 2.85 AU

Year: 3057 Days

Day: 7.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 58,334,684 km

• M1: 142,268 km (0.112 R)
• M2: 600,336 km (0.077 R)
• M3: 1,375,702 km (0.117 R)
• M4: 1,856,360 km (0.092 R)
• M5: 2,404,636 km (0.029 R)
• M6: 3,126,895 km (0.119 R)
• M7: 3,539,486 km (0.102 R)
• M8: 4,174,229 km (0.077 R)
• M9: 4,676,280 km (0.108 R)
• M10: 5,907,770 km (0.064 R)
• M11: 6,890,628 km (0.114 R)
• M12: 7,914,027 km (0.114 R)
• M13: 8,965,251 km (0.105 R)
• M14: 9,728,649 km (0.09 R)
• M15: 12,633,391 km (0.114 R)
• M16: 15,605,302 km (0.084 R)
• M17: 16,548,816 km (0.093 R)
• M18: 17,753,079 km (0.08 R)
• M19: 19,547,804 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 356.7

Radius: 6.5

Gravity: 8.44 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 8.02 AU - 10.58 AU

Year: 18605 Days

Day: 23.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 58,334,684 km

• M1: 84,224 km (0.098 R)
• M2: 315,053 km (0.086 R)
• M3: 575,353 km (0.108 R)
• M4: 916,736 km (0.12 R)
• M5: 1,833,172 km (0.119 R)
• M6: 2,310,390 km (0.064 R)
• M7: 2,578,469 km (0.069 R)
• M8: 3,079,622 km (0.114 R)
• M9: 3,353,685 km (0.085 R)
• M10: 3,562,972 km (0.086 R)
• M11: 4,125,161 km (0.111 R)
• M12: 6,090,429 km (0.116 R)
• M13: 6,443,031 km (0.084 R)
• M14: 7,627,846 km (0.062 R)
• M15: 8,510,324 km (0.072 R)
• M16: 9,253,675 km (0.109 R)
• M17: 10,587,640 km (0.099 R)
• M18: 15,567,454 km (0.097 R)
• M19: 15,858,272 km (0.11 R)
• M20: 16,376,030 km (0.031 R)
• M21: 21,195,924 km (0.119 R)
• M22: 23,495,842 km (0.078 R)
• M23: 24,952,775 km (0.072 R)
• M24: 26,883,336 km (0.117 R)
• M25: 27,092,324 km (0.108 R)
• M26: 29,795,109 km (0.059 R)
• M27: 30,243,603 km (0.102 R)
• M28: 31,848,938 km (0.118 R)
• M29: 43,116,649 km (0.105 R)
• M30: 44,124,191 km (0.092 R)
• M31: 55,582,939 km (0.119 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: 179 - 12,553 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit