🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.17

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.62 AU - 0.7 AU

Year: 341 Days

Day: 48 Hours

Environment

Temp: -144 °C

Axial Tilt: 38.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 59,142,994 km

• M1: 32,164 km (0.057 R)
• M2: 54,304 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.9

Radius: 11.6

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.9 AU - 1.06 AU

Year: 617 Days

Day: 7.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,142,994 km

• M1: 144,212 km (0.104 R)
• M2: 771,775 km (0.106 R)
• M3: 1,240,615 km (0.1 R)
• M4: 1,707,211 km (0.075 R)
• M5: 2,224,520 km (0.106 R)
• M6: 3,178,805 km (0.095 R)
• M7: 5,113,854 km (0.057 R)
• M8: 5,845,088 km (0.089 R)
• M9: 6,624,792 km (0.039 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470

Radius: 13.3

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.01 AU - 1.05 AU

Year: 665 Days

Day: 10.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,142,994 km

• M1: 165,455 km (0.107 R)
• M2: 991,684 km (0.07 R)
• M3: 1,542,055 km (0.111 R)
• M4: 2,050,837 km (0.089 R)
• M5: 2,468,215 km (0.114 R)
• M6: 2,898,309 km (0.058 R)
• M7: 3,378,818 km (0.088 R)
• M8: 3,858,129 km (0.113 R)
• M9: 4,323,977 km (0.049 R)
• M10: 5,184,464 km (0.072 R)
• M11: 5,825,640 km (0.108 R)
• M12: 6,441,535 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 672.3

Radius: 14.5

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.65 AU - 1.99 AU

Year: 1561 Days

Day: 14.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,142,994 km

• M1: 180,265 km (0.068 R)
• M2: 648,208 km (0.091 R)
• M3: 1,133,503 km (0.101 R)
• M4: 1,915,002 km (0.099 R)
• M5: 2,435,753 km (0.119 R)
• M6: 3,066,008 km (0.096 R)
• M7: 4,542,240 km (0.056 R)
• M8: 5,976,734 km (0.097 R)
• M9: 6,926,232 km (0.097 R)
• M10: 8,317,043 km (0.072 R)
• M11: 11,393,523 km (0.069 R)
• M12: 12,505,335 km (0.042 R)
• M13: 13,009,180 km (0.12 R)
• M14: 13,526,490 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.7

Radius: 13.8

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 4.41 AU - 5.09 AU

Year: 6582 Days

Day: 6.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 59,142,994 km

• M1: 171,589 km (0.11 R)
• M2: 606,470 km (0.073 R)
• M3: 1,367,025 km (0.099 R)
• M4: 1,920,388 km (0.088 R)
• M5: 2,641,001 km (0.104 R)
• M6: 3,359,819 km (0.097 R)
• M7: 4,080,581 km (0.079 R)
• M8: 4,598,788 km (0.045 R)
• M9: 5,190,149 km (0.111 R)
• M10: 6,156,102 km (0.119 R)
• M11: 10,054,024 km (0.089 R)
• M12: 12,119,671 km (0.103 R)
• M13: 13,645,570 km (0.102 R)
• M14: 17,948,154 km (0.079 R)
• M15: 20,443,447 km (0.118 R)
• M16: 21,658,032 km (0.033 R)
• M17: 22,600,050 km (0.12 R)
• M18: 23,243,021 km (0.077 R)
• M19: 26,201,169 km (0.099 R)
• M20: 27,000,620 km (0.096 R)
• M21: 28,741,940 km (0.077 R)
• M22: 32,244,475 km (0.119 R)
• M23: 35,913,662 km (0.098 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 665.6

Radius: 4.8

Gravity: 28.89 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 7.42 AU - 8.22 AU

Year: 13904 Days

Day: 16.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 59,142,994 km

• M1: 59,839 km (0.098 R)
• M2: 251,175 km (0.094 R)
• M3: 663,467 km (0.088 R)
• M4: 1,005,148 km (0.079 R)
• M5: 1,159,234 km (0.031 R)
• M6: 1,398,890 km (0.084 R)
• M7: 2,909,230 km (0.075 R)
• M8: 3,101,164 km (0.115 R)
• M9: 3,673,376 km (0.081 R)
• M10: 4,102,123 km (0.114 R)
• M11: 4,659,525 km (0.095 R)
• M12: 5,092,611 km (0.085 R)
• M13: 5,625,179 km (0.049 R)
• M14: 7,269,260 km (0.107 R)
• M15: 11,350,738 km (0.114 R)
• M16: 15,331,239 km (0.108 R)
• M17: 15,693,714 km (0.095 R)
• M18: 16,061,875 km (0.099 R)
• M19: 16,738,955 km (0.101 R)
• M20: 20,762,688 km (0.065 R)
• M21: 24,490,219 km (0.064 R)
• M22: 31,458,936 km (0.103 R)
• M23: 33,842,778 km (0.119 R)
• M24: 34,953,692 km (0.098 R)
• M25: 35,581,255 km (0.074 R)
• M26: 36,216,298 km (0.077 R)
• M27: 36,472,410 km (0.045 R)
• M28: 36,729,718 km (0.115 R)
• M29: 36,988,373 km (0.095 R)
• M30: 37,640,021 km (0.08 R)
• M31: 51,682,175 km (0.113 R)
• M32: 55,668,360 km (0.044 R)
• M33: 56,696,097 km (0.084 R)
• M34: 58,965,946 km (0.056 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 485 - 18,659 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit