🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.44 AU - 0.74 AU

Year: 293 Days

Day: 23.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 45.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,967,294 km

• M1: 33,211 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.8

Radius: 14.8

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.59 AU - 0.79 AU

Year: 370 Days

Day: 5.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,967,294 km

• M1: 184,305 km (0.116 R)
• M2: 686,505 km (0.106 R)
• M3: 1,254,229 km (0.071 R)
• M4: 1,719,179 km (0.08 R)
• M5: 2,399,999 km (0.077 R)
• M6: 3,028,011 km (0.104 R)
• M7: 3,545,918 km (0.116 R)
• M8: 4,110,052 km (0.077 R)
• M9: 4,866,120 km (0.076 R)
• M10: 5,614,857 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.3

Radius: 14.8

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.76 AU - 2.9 AU

Year: 2296 Days

Day: 11.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,967,294 km

• M1: 184,155 km (0.047 R)
• M2: 879,187 km (0.085 R)
• M3: 1,706,164 km (0.117 R)
• M4: 2,608,239 km (0.115 R)
• M5: 3,810,707 km (0.118 R)
• M6: 4,299,293 km (0.101 R)
• M7: 6,526,656 km (0.112 R)
• M8: 7,348,098 km (0.093 R)
• M9: 7,830,252 km (0.104 R)
• M10: 8,365,812 km (0.069 R)
• M11: 10,988,412 km (0.104 R)
• M12: 13,799,805 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.6

Radius: 9.9

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.79 AU - 3.65 AU

Year: 3731 Days

Day: 9.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 51,967,294 km

• M1: 123,119 km (0.082 R)
• M2: 431,739 km (0.12 R)
• M3: 1,027,289 km (0.113 R)
• M4: 2,141,942 km (0.096 R)
• M5: 2,622,899 km (0.096 R)
• M6: 4,836,649 km (0.098 R)
• M7: 5,432,497 km (0.085 R)
• M8: 6,020,866 km (0.106 R)
• M9: 9,061,891 km (0.096 R)
• M10: 10,084,991 km (0.086 R)
• M11: 10,563,704 km (0.064 R)
• M12: 11,523,674 km (0.103 R)
• M13: 13,094,601 km (0.102 R)
• M14: 14,152,407 km (0.064 R)
• M15: 15,951,023 km (0.103 R)
• M16: 20,247,025 km (0.067 R)
• M17: 21,073,852 km (0.111 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 965

Radius: 3.4

Gravity: 83.48 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 6.02 AU - 8.82 AU

Year: 13050 Days

Day: 19.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 51,967,294 km

• M1: 42,635 km (0.055 R)
• M2: 214,523 km (0.111 R)
• M3: 653,294 km (0.047 R)
• M4: 1,020,407 km (0.108 R)
• M5: 1,208,900 km (0.115 R)
• M6: 1,526,796 km (0.069 R)
• M7: 2,284,509 km (0.118 R)
• M8: 2,791,795 km (0.061 R)
• M9: 3,238,046 km (0.042 R)
• M10: 3,787,968 km (0.086 R)
• M11: 3,905,103 km (0.048 R)
• M12: 4,085,219 km (0.102 R)
• M13: 4,397,579 km (0.072 R)
• M14: 5,808,287 km (0.086 R)
• M15: 7,540,630 km (0.062 R)
• M16: 9,059,049 km (0.069 R)
• M17: 18,311,378 km (0.116 R)
• M18: 19,676,758 km (0.084 R)
• M19: 20,384,206 km (0.064 R)
• M20: 20,834,944 km (0.117 R)
• M21: 21,384,567 km (0.063 R)
• M22: 21,569,769 km (0.041 R)
• M23: 25,091,452 km (0.049 R)
• M24: 28,303,768 km (0.03 R)
• M25: 28,527,117 km (0.065 R)
• M26: 33,995,817 km (0.111 R)
• M27: 36,709,223 km (0.102 R)
• M28: 37,914,982 km (0.091 R)
• M29: 39,008,692 km (0.105 R)
• M30: 41,834,745 km (0.117 R)
• M31: 42,270,075 km (0.101 R)
• M32: 43,445,615 km (0.111 R)
• M33: 45,862,070 km (0.111 R)
• M34: 46,016,006 km (0.056 R)
• M35: 53,645,796 km (0.107 R)
• M36: 56,955,201 km (0.114 R)
• M37: 59,845,431 km (0.066 R)
• M38: 62,642,463 km (0.095 R)
• M39: 62,831,854 km (0.094 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 279.7

Radius: 5.1

Gravity: 10.75 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 7.75 AU - 10.41 AU

Year: 17666 Days

Day: 15.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 51,967,294 km

• M1: 64,477 km (0.118 R)
• M2: 504,145 km (0.075 R)
• M3: 711,487 km (0.03 R)
• M4: 1,085,033 km (0.095 R)
• M5: 1,464,862 km (0.053 R)
• M6: 2,485,120 km (0.039 R)
• M7: 2,671,220 km (0.118 R)
• M8: 2,844,604 km (0.12 R)
• M9: 3,485,930 km (0.109 R)
• M10: 3,908,843 km (0.111 R)
• M11: 4,484,795 km (0.041 R)
• M12: 5,803,649 km (0.107 R)
• M13: 6,668,923 km (0.096 R)
• M14: 7,747,075 km (0.09 R)
• M15: 8,605,019 km (0.082 R)
• M16: 12,857,339 km (0.04 R)
• M17: 13,165,809 km (0.05 R)
• M18: 15,190,018 km (0.087 R)
• M19: 16,746,285 km (0.116 R)
• M20: 18,250,641 km (0.112 R)
• M21: 18,876,858 km (0.111 R)
• M22: 19,275,386 km (0.108 R)
• M23: 20,007,070 km (0.104 R)
• M24: 22,847,933 km (0.085 R)
• M25: 23,209,661 km (0.08 R)
• M26: 29,527,329 km (0.079 R)
• M27: 32,962,096 km (0.097 R)
• M28: 41,678,116 km (0.116 R)
• M29: 49,817,737 km (0.05 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 372 - 14,549 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit