🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.5 AU - 0.7 AU

Year: 199 Days

Day: 38.6 Hours

Environment

Temp: 21 °C

Axial Tilt: 37.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 112,597,625 km

• M1: 43,084 km (0.07 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.41

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.65 AU - 0.87 AU

Year: 283 Days

Day: 30.4 Hours

Environment

Temp: -1 °C

Axial Tilt: 6.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.15

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.41 AU - 2.79 AU

Year: 1792 Days

Day: 42.3 Hours

Environment

Temp: -128 °C

Axial Tilt: 25.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.07 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.2

Radius: 12.6

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 3.19 AU - 3.89 AU

Year: 2847 Days

Day: 9.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 112,597,625 km

• M1: 157,078 km (0.098 R)
• M2: 774,169 km (0.089 R)
• M3: 1,632,562 km (0.099 R)
• M4: 2,321,161 km (0.099 R)
• M5: 2,904,891 km (0.114 R)
• M6: 3,624,308 km (0.079 R)
• M7: 6,811,939 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.4

Radius: 9.6

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 3.26 AU - 4.8 AU

Year: 3458 Days

Day: 5.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 112,597,625 km

• M1: 119,529 km (0.101 R)
• M2: 541,843 km (0.087 R)
• M3: 1,027,289 km (0.102 R)
• M4: 1,708,258 km (0.063 R)
• M5: 2,203,128 km (0.096 R)
• M6: 2,887,837 km (0.075 R)
• M7: 4,131,295 km (0.093 R)
• M8: 4,908,007 km (0.108 R)
• M9: 6,956,151 km (0.048 R)
• M10: 9,371,409 km (0.066 R)
• M11: 10,197,339 km (0.062 R)
• M12: 11,907,542 km (0.063 R)
• M13: 15,119,707 km (0.083 R)
• M14: 15,783,623 km (0.082 R)
• M15: 16,307,365 km (0.104 R)
• M16: 20,182,398 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.3

Radius: 9.8

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 6.24 AU - 7.08 AU

Year: 7348 Days

Day: 14.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 112,597,625 km

• M1: 127,158 km (0.104 R)
• M2: 471,532 km (0.083 R)
• M3: 787,483 km (0.11 R)
• M4: 1,470,846 km (0.091 R)
• M5: 2,058,317 km (0.107 R)
• M6: 3,312,845 km (0.085 R)
• M7: 5,282,899 km (0.119 R)
• M8: 6,784,263 km (0.077 R)
• M9: 8,074,994 km (0.119 R)
• M10: 8,702,557 km (0.105 R)
• M11: 9,125,769 km (0.107 R)
• M12: 11,135,467 km (0.086 R)
• M13: 13,022,345 km (0.1 R)
• M14: 19,101,853 km (0.093 R)
• M15: 19,424,984 km (0.115 R)
• M16: 21,302,587 km (0.039 R)
• M17: 26,761,563 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 151

Radius: 7.1

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 10.94 AU - 12.24 AU

Year: 16868 Days

Day: 16.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 112,597,625 km

• M1: 180,265 km (0.064 R)
• M2: 478,414 km (0.078 R)
• M3: 958,474 km (0.057 R)
• M4: 1,319,752 km (0.095 R)
• M5: 2,178,893 km (0.076 R)
• M6: 2,951,566 km (0.029 R)
• M7: 3,187,033 km (0.107 R)
• M8: 3,481,591 km (0.114 R)
• M9: 4,503,793 km (0.111 R)
• M10: 5,487,399 km (0.103 R)
• M11: 7,316,832 km (0.119 R)
• M12: 8,284,880 km (0.111 R)
• M13: 9,427,059 km (0.118 R)
• M14: 10,521,817 km (0.07 R)
• M15: 13,951,348 km (0.118 R)
• M16: 14,191,452 km (0.064 R)
• M17: 21,685,408 km (0.107 R)
• M18: 22,662,133 km (0.089 R)
• M19: 25,588,117 km (0.098 R)
• M20: 27,704,329 km (0.065 R)
• M21: 29,341,678 km (0.058 R)
• M22: 30,434,789 km (0.115 R)
• M23: 32,913,626 km (0.114 R)
• M24: 38,858,346 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 235.8

Radius: 3

Gravity: 26.2 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 12.62 AU - 19.36 AU

Year: 27334 Days

Day: 15 Hours

Environment

Temp: -216 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 112,597,625 km

• M1: 37,399 km (0.091 R)
• M2: 139,724 km (0.087 R)
• M3: 277,055 km (0.087 R)
• M4: 1,417,290 km (0.119 R)
• M5: 1,654,702 km (0.115 R)
• M6: 2,803,464 km (0.116 R)
• M7: 3,610,545 km (0.118 R)
• M8: 3,724,837 km (0.043 R)
• M9: 5,782,257 km (0.037 R)
• M10: 5,899,542 km (0.119 R)
• M11: 6,058,265 km (0.076 R)
• M12: 6,260,820 km (0.1 R)
• M13: 7,854,187 km (0.111 R)
• M14: 7,949,930 km (0.115 R)
• M15: 9,426,910 km (0.116 R)
• M16: 11,440,946 km (0.1 R)
• M17: 11,625,849 km (0.119 R)
• M18: 14,143,880 km (0.053 R)
• M19: 15,604,554 km (0.11 R)
• M20: 26,634,405 km (0.115 R)
• M21: 36,094,376 km (0.098 R)
• M22: 36,758,740 km (0.103 R)
• M23: 51,816,364 km (0.111 R)
• M24: 61,247,313 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 982

Radius: 4.5

Gravity: 48.49 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 16.8 AU - 17.28 AU

Year: 30070 Days

Day: 17.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 112,597,625 km

• M1: 56,249 km (0.049 R)
• M2: 281,094 km (0.033 R)
• M3: 1,254,378 km (0.115 R)
• M4: 2,271,195 km (0.114 R)
• M5: 2,688,723 km (0.069 R)
• M6: 3,064,363 km (0.074 R)
• M7: 3,408,737 km (0.116 R)
• M8: 4,100,328 km (0.086 R)
• M9: 5,263,003 km (0.117 R)
• M10: 9,448,003 km (0.07 R)
• M11: 11,740,441 km (0.098 R)
• M12: 12,895,187 km (0.053 R)
• M13: 13,377,640 km (0.118 R)
• M14: 15,517,787 km (0.115 R)
• M15: 15,698,352 km (0.033 R)
• M16: 17,001,200 km (0.048 R)
• M17: 17,974,783 km (0.091 R)
• M18: 18,273,978 km (0.077 R)
• M19: 20,679,213 km (0.079 R)
• M20: 23,405,484 km (0.08 R)
• M21: 24,486,778 km (0.089 R)
• M22: 33,602,075 km (0.095 R)
• M23: 34,360,985 km (0.067 R)
• M24: 35,599,057 km (0.089 R)
• M25: 36,070,889 km (0.108 R)
• M26: 39,658,844 km (0.074 R)
• M27: 43,477,779 km (0.08 R)
• M28: 44,016,780 km (0.103 R)
• M29: 45,660,561 km (0.026 R)
• M30: 49,654,376 km (0.075 R)
• M31: 51,434,890 km (0.098 R)
• M32: 66,284,573 km (0.043 R)
• M33: 67,958,124 km (0.081 R)
• M34: 77,274,032 km (0.113 R)
• M35: 82,098,863 km (0.101 R)
• M36: 87,976,862 km (0.106 R)
• M37: 88,550,869 km (0.106 R)
• M38: 89,127,419 km (0.107 R)
• M39: 103,406,387 km (0.12 R)
• M40: 108,924,454 km (0.099 R)
• M41: 110,917,995 km (0.076 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 440 - 18,890 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit