🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.84 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.69

Radius: 1.69

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.67 AU - 1.69 AU

Year: 762 Days

Day: 14.1 Hours

Environment

Temp: -24 °C

Axial Tilt: 15.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.56

Radius: 1.19

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.95 AU - 2.19 AU

Year: 1042 Days

Day: 13.7 Hours

Environment

Temp: -55 °C

Axial Tilt: 29.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 100,257,864 km

• M1: 28,274 km (0.102 R)
• M2: 491,130 km (0.096 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 2.09 AU - 2.75 AU

Year: 1317 Days

Day: 23.2 Hours

Environment

Temp: -77 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.3 AU - 2.96 AU

Year: 1492 Days

Day: 37.6 Hours

Environment

Temp: -79 °C

Axial Tilt: 50 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.72

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.31 AU - 3.11 AU

Year: 1561 Days

Day: 20.6 Hours

Environment

Temp: -71 °C

Axial Tilt: 33.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 100,257,864 km

• M1: 423,960 km (0.12 R)
• M2: 1,697,487 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.8

Radius: 13.3

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 5.92 AU - 7.36 AU

Year: 5986 Days

Day: 11.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 100,257,864 km

• M1: 165,455 km (0.073 R)
• M2: 883,675 km (0.114 R)
• M3: 1,510,789 km (0.071 R)
• M4: 2,817,825 km (0.112 R)
• M5: 3,664,849 km (0.098 R)
• M6: 4,319,489 km (0.08 R)
• M7: 4,839,790 km (0.05 R)
• M8: 5,514,926 km (0.071 R)
• M9: 7,299,479 km (0.092 R)
• M10: 8,583,028 km (0.048 R)
• M11: 10,046,395 km (0.106 R)
• M12: 10,711,806 km (0.091 R)
• M13: 11,294,938 km (0.071 R)
• M14: 13,008,432 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.4

Radius: 12.1

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 7.54 AU - 11.54 AU

Year: 10309 Days

Day: 6.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 100,257,864 km

• M1: 150,495 km (0.105 R)
• M2: 542,292 km (0.057 R)
• M3: 1,912,609 km (0.045 R)
• M4: 2,377,409 km (0.094 R)
• M5: 3,108,045 km (0.116 R)
• M6: 3,731,569 km (0.101 R)
• M7: 4,520,997 km (0.102 R)
• M8: 5,776,123 km (0.049 R)
• M9: 6,832,733 km (0.058 R)
• M10: 7,368,144 km (0.102 R)
• M11: 8,223,694 km (0.107 R)
• M12: 8,653,788 km (0.107 R)
• M13: 12,044,274 km (0.064 R)
• M14: 12,487,533 km (0.064 R)
• M15: 13,289,377 km (0.078 R)
• M16: 14,064,444 km (0.066 R)
• M17: 14,494,089 km (0.055 R)
• M18: 15,901,805 km (0.105 R)
• M19: 17,119,831 km (0.092 R)
• M20: 17,539,453 km (0.067 R)
• M21: 18,839,458 km (0.103 R)
• M22: 21,067,719 km (0.106 R)
• M23: 22,703,272 km (0.079 R)
• M24: 23,466,221 km (0.065 R)
• M25: 28,310,799 km (0.052 R)
• M26: 30,504,203 km (0.088 R)
• M27: 36,942,147 km (0.094 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.9

Radius: 13.4

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 9.58 AU - 13.68 AU

Year: 13875 Days

Day: 6.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 100,257,864 km

• M1: 198,666 km (0.073 R)
• M2: 826,977 km (0.05 R)
• M3: 1,312,572 km (0.094 R)
• M4: 2,042,460 km (0.115 R)
• M5: 2,482,277 km (0.119 R)
• M6: 3,286,815 km (0.078 R)
• M7: 4,404,311 km (0.039 R)
• M8: 5,148,710 km (0.116 R)
• M9: 6,270,245 km (0.119 R)
• M10: 7,172,620 km (0.114 R)
• M11: 8,477,711 km (0.069 R)
• M12: 10,090,077 km (0.097 R)
• M13: 10,724,372 km (0.052 R)
• M14: 11,329,196 km (0.118 R)
• M15: 13,406,064 km (0.07 R)
• M16: 15,586,453 km (0.112 R)
• M17: 16,797,747 km (0.1 R)
• M18: 17,239,808 km (0.066 R)
• M19: 18,070,675 km (0.104 R)
• M20: 19,246,514 km (0.092 R)
• M21: 20,977,511 km (0.109 R)
• M22: 21,924,765 km (0.056 R)
• M23: 23,261,871 km (0.084 R)
• M24: 26,000,409 km (0.077 R)
• M25: 29,052,654 km (0.047 R)
• M26: 32,906,744 km (0.12 R)
• M27: 35,015,775 km (0.104 R)
• M28: 42,833,760 km (0.119 R)
• M29: 46,493,073 km (0.066 R)
• M30: 47,659,638 km (0.078 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 56.4

Radius: 4.9

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 14.2 AU - 20.36 AU

Year: 25130 Days

Day: 22.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 100,257,864 km

• M1: 91,853 km (0.103 R)
• M2: 573,259 km (0.091 R)
• M3: 878,887 km (0.097 R)
• M4: 1,038,808 km (0.034 R)
• M5: 1,229,694 km (0.079 R)
• M6: 1,573,470 km (0.067 R)
• M7: 6,086,988 km (0.084 R)
• M8: 6,855,472 km (0.09 R)
• M9: 8,710,186 km (0.028 R)
• M10: 9,683,470 km (0.118 R)
• M11: 10,483,669 km (0.062 R)
• M12: 12,108,003 km (0.077 R)
• M13: 12,322,077 km (0.095 R)
• M14: 13,718,424 km (0.068 R)
• M15: 14,665,378 km (0.034 R)
• M16: 17,087,817 km (0.09 R)
• M17: 21,124,416 km (0.111 R)
• M18: 28,585,311 km (0.09 R)
• M19: 29,060,733 km (0.041 R)
• M20: 29,348,559 km (0.108 R)
• M21: 32,024,416 km (0.091 R)
• M22: 35,619,851 km (0.04 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 648.9

Radius: 4.1

Gravity: 38.6 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 18.99 AU - 20.83 AU

Year: 31080 Days

Day: 16 Hours

Environment

Temp: -187 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 100,257,864 km

• M1: 51,611 km (0.054 R)
• M2: 211,531 km (0.047 R)
• M3: 578,944 km (0.119 R)
• M4: 3,182,994 km (0.118 R)
• M5: 4,165,852 km (0.081 R)
• M6: 5,168,008 km (0.045 R)
• M7: 13,033,266 km (0.054 R)
• M8: 13,421,921 km (0.03 R)
• M9: 25,346,816 km (0.069 R)
• M10: 26,319,651 km (0.048 R)
• M11: 33,545,677 km (0.115 R)
• M12: 37,453,024 km (0.103 R)
• M13: 40,165,383 km (0.091 R)
• M14: 48,155,106 km (0.079 R)
• M15: 60,510,992 km (0.089 R)
• M16: 69,509,753 km (0.105 R)
• M17: 72,132,054 km (0.065 R)
• M18: 74,326,056 km (0.089 R)
• M19: 75,813,209 km (0.104 R)
• M20: 97,576,558 km (0.076 R)

Kuiper Belt

Range: 31.4 - 56.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 336 - 13,404 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit