🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.78 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.25 AU - 1.85 AU

Year: 675 Days

Day: 27.9 Hours

Environment

Temp: -0 °C

Axial Tilt: 29.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 83,982,632 km

• M1: 278,102 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.1

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.48 AU - 1.8 AU

Year: 735 Days

Day: 46.9 Hours

Environment

Temp: -37 °C

Axial Tilt: 38.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.64

Radius: 0.84

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.95 AU - 2.29 AU

Year: 1080 Days

Day: 12.5 Hours

Environment

Temp: -55 °C

Axial Tilt: 13.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,982,632 km

• M1: 19,597 km (0.056 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.99

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 3.36 AU - 5.14 AU

Year: 3065 Days

Day: 32 Hours

Environment

Temp: -124 °C

Axial Tilt: 7.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.2

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 3.79 AU - 5.57 AU

Year: 3542 Days

Day: 12.2 Hours

Environment

Temp: -116 °C

Axial Tilt: 25.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,982,632 km

• M1: 467,793 km (0.093 R)

Planet 6 - Terrestrial

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 4.84 AU - 5.54 AU

Year: 4136 Days

Day: 38.2 Hours

Environment

Temp: -135 °C

Axial Tilt: 43.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340.1

Radius: 9.2

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 6.86 AU - 10.92 AU

Year: 9273 Days

Day: 13 Hours

Environment

Temp: -164 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 83,982,632 km

• M1: 114,442 km (0.106 R)
• M2: 557,850 km (0.094 R)
• M3: 1,010,234 km (0.102 R)
• M4: 1,315,564 km (0.12 R)
• M5: 1,821,204 km (0.097 R)
• M6: 2,183,680 km (0.109 R)
• M7: 2,704,580 km (0.119 R)
• M8: 3,055,537 km (0.12 R)
• M9: 5,115,200 km (0.09 R)
• M10: 5,748,298 km (0.1 R)
• M11: 6,918,752 km (0.119 R)
• M12: 8,081,726 km (0.106 R)
• M13: 8,940,567 km (0.106 R)
• M14: 12,991,677 km (0.107 R)
• M15: 13,711,991 km (0.113 R)
• M16: 15,292,942 km (0.037 R)
• M17: 16,604,017 km (0.095 R)
• M18: 17,254,020 km (0.112 R)
• M19: 19,734,951 km (0.116 R)
• M20: 23,400,398 km (0.1 R)
• M21: 24,632,935 km (0.091 R)
• M22: 25,908,257 km (0.107 R)
• M23: 29,429,192 km (0.106 R)
• M24: 30,380,934 km (0.106 R)
• M25: 30,864,434 km (0.067 R)
• M26: 35,556,272 km (0.076 R)
• M27: 35,877,758 km (0.103 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 78.8

Radius: 10.3

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 10.28 AU - 14.5 AU

Year: 15258 Days

Day: 13.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 83,982,632 km

• M1: 128,056 km (0.089 R)
• M2: 548,127 km (0.096 R)
• M3: 1,098,946 km (0.035 R)
• M4: 1,575,565 km (0.058 R)
• M5: 2,141,942 km (0.109 R)
• M6: 4,257,705 km (0.029 R)
• M7: 4,839,641 km (0.068 R)
• M8: 6,707,669 km (0.106 R)
• M9: 8,933,536 km (0.098 R)
• M10: 9,802,550 km (0.102 R)
• M11: 10,817,721 km (0.082 R)
• M12: 12,495,162 km (0.108 R)
• M13: 12,953,081 km (0.11 R)
• M14: 13,317,053 km (0.073 R)
• M15: 13,795,018 km (0.042 R)
• M16: 14,841,605 km (0.08 R)
• M17: 16,418,965 km (0.071 R)
• M18: 18,429,560 km (0.078 R)
• M19: 18,757,927 km (0.101 R)
• M20: 22,707,760 km (0.069 R)
• M21: 23,237,486 km (0.113 R)
• M22: 27,691,164 km (0.096 R)
• M23: 30,528,138 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 604.3

Radius: 3.1

Gravity: 62.88 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 12.35 AU - 19.47 AU

Year: 22201 Days

Day: 20.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 83,982,632 km

• M1: 39,643 km (0.077 R)
• M2: 160,668 km (0.115 R)
• M3: 257,757 km (0.1 R)
• M4: 804,986 km (0.114 R)
• M5: 1,002,455 km (0.054 R)
• M6: 1,381,536 km (0.061 R)
• M7: 1,945,670 km (0.112 R)
• M8: 3,478,300 km (0.079 R)
• M9: 4,894,543 km (0.108 R)
• M10: 6,519,774 km (0.069 R)
• M11: 10,169,364 km (0.095 R)
• M12: 12,489,178 km (0.108 R)
• M13: 13,479,217 km (0.03 R)
• M14: 20,633,885 km (0.035 R)
• M15: 33,160,462 km (0.084 R)
• M16: 36,297,679 km (0.093 R)
• M17: 41,904,757 km (0.101 R)
• M18: 55,538,060 km (0.102 R)
• M19: 68,361,889 km (0.097 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 422

Radius: 3.2

Gravity: 41.21 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 17.77 AU - 20.73 AU

Year: 29548 Days

Day: 23.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 83,982,632 km

• M1: 39,793 km (0.093 R)
• M2: 160,967 km (0.056 R)
• M3: 317,447 km (0.06 R)
• M4: 489,634 km (0.094 R)
• M5: 762,949 km (0.109 R)
• M6: 1,983,069 km (0.061 R)
• M7: 3,669,785 km (0.066 R)
• M8: 4,573,506 km (0.05 R)
• M9: 5,825,191 km (0.111 R)
• M10: 6,807,451 km (0.055 R)
• M11: 7,638,168 km (0.063 R)
• M12: 8,479,806 km (0.095 R)
• M13: 8,699,415 km (0.12 R)
• M14: 9,036,160 km (0.094 R)
• M15: 9,855,209 km (0.086 R)
• M16: 9,976,233 km (0.098 R)
• M17: 10,469,757 km (0.083 R)
• M18: 11,774,848 km (0.08 R)
• M19: 13,111,505 km (0.116 R)
• M20: 17,990,790 km (0.108 R)
• M21: 19,187,124 km (0.081 R)
• M22: 19,565,606 km (0.114 R)
• M23: 20,142,755 km (0.09 R)
• M24: 20,830,157 km (0.108 R)
• M25: 21,330,712 km (0.113 R)
• M26: 23,199,189 km (0.026 R)
• M27: 27,735,894 km (0.096 R)
• M28: 41,426,942 km (0.087 R)
• M29: 51,591,219 km (0.025 R)
• M30: 55,316,356 km (0.104 R)
• M31: 55,890,213 km (0.107 R)
• M32: 56,274,979 km (0.102 R)
• M33: 62,880,473 km (0.028 R)
• M34: 64,979,780 km (0.102 R)
• M35: 67,996,421 km (0.115 R)
• M36: 70,879,920 km (0.111 R)
• M37: 72,237,820 km (0.092 R)
• M38: 74,539,383 km (0.034 R)
• M39: 75,473,472 km (0.059 R)
• M40: 80,751,285 km (0.073 R)
• M41: 82,480,636 km (0.074 R)

Kuiper Belt

Range: 31.4 - 46.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 220 - 11,524 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit