🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

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: 4.11

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.55 AU - 0.71 AU

Year: 323 Days

Day: 41.8 Hours

Environment

Temp: -137 °C

Axial Tilt: 3.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,163,288 km

• M1: 156,031 km (0.108 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.56

Radius: 0.79

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.61 AU - 0.71 AU

Year: 346 Days

Day: 21.3 Hours

Environment

Temp: -129 °C

Axial Tilt: 8.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 47,163,288 km

• M1: 79,137 km (0.046 R)
• M2: 209,886 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.3

Radius: 14.8

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.96 AU - 1.24 AU

Year: 745 Days

Day: 5.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 47,163,288 km

• M1: 184,454 km (0.109 R)
• M2: 764,744 km (0.114 R)
• M3: 1,327,083 km (0.094 R)
• M4: 2,001,320 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.4

Radius: 10.5

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.01 AU - 2.71 AU

Year: 2341 Days

Day: 7.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 114.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,163,288 km

• M1: 131,048 km (0.102 R)
• M2: 637,137 km (0.108 R)
• M3: 1,067,381 km (0.103 R)
• M4: 2,103,196 km (0.069 R)
• M5: 3,292,350 km (0.096 R)
• M6: 4,356,440 km (0.12 R)
• M7: 4,883,174 km (0.058 R)
• M8: 5,317,008 km (0.089 R)
• M9: 5,682,475 km (0.072 R)
• M10: 10,819,666 km (0.065 R)
• M11: 11,222,234 km (0.108 R)
• M12: 12,490,525 km (0.109 R)
• M13: 14,196,539 km (0.116 R)
• M14: 15,355,773 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.3

Radius: 8.6

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.81 AU - 3.75 AU

Year: 3836 Days

Day: 10.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,163,288 km

• M1: 107,112 km (0.115 R)
• M2: 554,709 km (0.117 R)
• M3: 891,903 km (0.095 R)
• M4: 1,877,004 km (0.038 R)
• M5: 3,611,741 km (0.115 R)
• M6: 5,972,545 km (0.115 R)
• M7: 7,904,303 km (0.12 R)
• M8: 8,268,274 km (0.092 R)
• M9: 9,317,853 km (0.07 R)
• M10: 9,649,362 km (0.092 R)
• M11: 10,219,479 km (0.048 R)
• M12: 11,014,442 km (0.105 R)
• M13: 11,637,218 km (0.113 R)
• M14: 18,802,956 km (0.077 R)
• M15: 20,733,517 km (0.093 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 660

Radius: 3.7

Gravity: 48.21 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 5.17 AU - 7.37 AU

Year: 10137 Days

Day: 19.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 47,163,288 km

• M1: 47,123 km (0.091 R)
• M2: 333,753 km (0.074 R)
• M3: 904,469 km (0.031 R)
• M4: 1,049,429 km (0.094 R)
• M5: 1,309,131 km (0.113 R)
• M6: 1,537,866 km (0.094 R)
• M7: 1,654,403 km (0.07 R)
• M8: 2,023,012 km (0.081 R)
• M9: 2,603,452 km (0.044 R)
• M10: 2,987,469 km (0.096 R)
• M11: 4,482,850 km (0.077 R)
• M12: 4,844,877 km (0.113 R)
• M13: 6,603,400 km (0.046 R)
• M14: 7,111,584 km (0.085 R)
• M15: 8,073,797 km (0.081 R)
• M16: 10,720,333 km (0.101 R)
• M17: 11,980,396 km (0.12 R)
• M18: 12,734,519 km (0.091 R)
• M19: 12,972,828 km (0.113 R)
• M20: 13,213,980 km (0.084 R)
• M21: 14,855,667 km (0.111 R)
• M22: 15,252,849 km (0.037 R)
• M23: 17,273,318 km (0.102 R)
• M24: 20,262,134 km (0.038 R)
• M25: 22,005,847 km (0.058 R)
• M26: 24,391,484 km (0.03 R)
• M27: 26,943,773 km (0.035 R)
• M28: 29,564,578 km (0.079 R)
• M29: 30,936,540 km (0.097 R)
• M30: 34,148,856 km (0.113 R)
• M31: 35,540,565 km (0.087 R)
• M32: 36,849,247 km (0.078 R)
• M33: 39,815,174 km (0.085 R)
• M34: 40,709,321 km (0.044 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 59.3

Radius: 6.2

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 5.78 AU - 8.12 AU

Year: 11830 Days

Day: 22.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,163,288 km

• M1: 77,193 km (0.079 R)
• M2: 497,413 km (0.119 R)
• M3: 823,087 km (0.032 R)
• M4: 1,161,777 km (0.088 R)
• M5: 2,009,698 km (0.119 R)
• M6: 4,982,058 km (0.078 R)
• M7: 6,073,374 km (0.115 R)
• M8: 6,659,798 km (0.091 R)
• M9: 8,220,852 km (0.106 R)
• M10: 18,486,258 km (0.105 R)
• M11: 19,713,110 km (0.053 R)
• M12: 20,028,163 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 421.1

Radius: 6.5

Gravity: 9.97 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 5.95 AU - 8.43 AU

Year: 12448 Days

Day: 19 Hours

Environment

Temp: -232 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 47,163,288 km

• M1: 85,720 km (0.101 R)
• M2: 374,144 km (0.037 R)
• M3: 748,139 km (0.117 R)
• M4: 1,136,645 km (0.106 R)
• M5: 1,377,647 km (0.108 R)
• M6: 1,638,097 km (0.119 R)
• M7: 2,852,233 km (0.119 R)
• M8: 3,162,349 km (0.11 R)
• M9: 3,397,517 km (0.086 R)
• M10: 4,174,080 km (0.11 R)
• M11: 5,895,802 km (0.111 R)
• M12: 6,662,940 km (0.028 R)
• M13: 8,527,677 km (0.082 R)
• M14: 9,458,625 km (0.07 R)
• M15: 10,820,264 km (0.109 R)
• M16: 11,575,584 km (0.077 R)
• M17: 13,190,643 km (0.12 R)
• M18: 14,178,138 km (0.062 R)
• M19: 15,016,036 km (0.111 R)
• M20: 16,790,117 km (0.091 R)
• M21: 17,508,187 km (0.104 R)
• M22: 18,171,803 km (0.062 R)
• M23: 18,623,439 km (0.053 R)
• M24: 23,827,201 km (0.044 R)
• M25: 31,084,792 km (0.074 R)
• M26: 32,275,741 km (0.116 R)
• M27: 35,912,914 km (0.054 R)
• M28: 37,951,933 km (0.094 R)
• M29: 40,575,730 km (0.093 R)
• M30: 40,960,196 km (0.085 R)
• M31: 44,530,200 km (0.083 R)
• M32: 46,181,461 km (0.082 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 462 - 19,238 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit