🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.9

Radius: 12.3

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.52 AU - 0.8 AU

Year: 364 Days

Day: 5.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,470,593 km

• M1: 153,039 km (0.092 R)
• M2: 591,510 km (0.116 R)
• M3: 1,122,582 km (0.116 R)
• M4: 1,660,387 km (0.097 R)
• M5: 2,253,991 km (0.057 R)
• M6: 2,751,853 km (0.092 R)
• M7: 3,833,146 km (0.086 R)
• M8: 4,632,448 km (0.092 R)
• M9: 5,333,912 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.8

Radius: 10.2

Gravity: 7 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.58 AU - 0.92 AU

Year: 441 Days

Day: 7.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,470,593 km

• M1: 126,859 km (0.072 R)
• M2: 449,691 km (0.089 R)
• M3: 821,442 km (0.056 R)
• M4: 1,263,055 km (0.038 R)
• M5: 1,791,135 km (0.099 R)
• M6: 2,116,062 km (0.107 R)
• M7: 2,658,504 km (0.085 R)
• M8: 3,221,590 km (0.085 R)
• M9: 4,227,785 km (0.08 R)
• M10: 4,586,521 km (0.107 R)
• M11: 4,934,336 km (0.06 R)
• M12: 5,598,700 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.3

Radius: 11.1

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.09 AU - 2.75 AU

Year: 2553 Days

Day: 10.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,470,593 km

• M1: 138,079 km (0.097 R)
• M2: 834,307 km (0.102 R)
• M3: 1,317,060 km (0.09 R)
• M4: 2,089,583 km (0.115 R)
• M5: 2,729,563 km (0.109 R)
• M6: 3,102,809 km (0.101 R)
• M7: 3,524,376 km (0.07 R)
• M8: 3,984,240 km (0.027 R)
• M9: 4,863,576 km (0.043 R)
• M10: 6,936,853 km (0.092 R)
• M11: 9,374,551 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.2

Radius: 11.5

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.51 AU - 3.07 AU

Year: 3161 Days

Day: 5.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,470,593 km

• M1: 160,818 km (0.068 R)
• M2: 919,129 km (0.12 R)
• M3: 1,294,919 km (0.058 R)
• M4: 1,822,252 km (0.063 R)
• M5: 2,361,103 km (0.034 R)
• M6: 3,071,693 km (0.117 R)
• M7: 4,824,232 km (0.085 R)
• M8: 5,942,476 km (0.117 R)
• M9: 7,165,289 km (0.114 R)
• M10: 8,014,706 km (0.112 R)
• M11: 12,225,288 km (0.092 R)
• M12: 13,576,605 km (0.103 R)
• M13: 14,096,308 km (0.07 R)
• M14: 14,482,420 km (0.111 R)
• M15: 15,735,302 km (0.069 R)
• M16: 17,944,265 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.2

Radius: 13.9

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 3.29 AU - 3.99 AU

Year: 4710 Days

Day: 9.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,470,593 km

• M1: 172,935 km (0.104 R)
• M2: 651,349 km (0.07 R)
• M3: 1,107,473 km (0.1 R)
• M4: 1,699,731 km (0.084 R)
• M5: 2,401,943 km (0.079 R)
• M6: 2,940,945 km (0.106 R)
• M7: 3,980,949 km (0.032 R)
• M8: 4,477,913 km (0.092 R)
• M9: 4,969,940 km (0.119 R)
• M10: 5,448,504 km (0.094 R)
• M11: 6,037,022 km (0.057 R)
• M12: 6,696,150 km (0.12 R)
• M13: 8,793,512 km (0.104 R)
• M14: 10,857,514 km (0.092 R)
• M15: 11,420,451 km (0.069 R)
• M16: 13,637,940 km (0.117 R)
• M17: 16,651,290 km (0.101 R)
• M18: 17,130,602 km (0.119 R)
• M19: 17,729,143 km (0.085 R)
• M20: 18,229,099 km (0.115 R)
• M21: 19,025,558 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 86.5

Radius: 3.4

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 5.49 AU - 6.23 AU

Year: 9621 Days

Day: 19.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 66,470,593 km

• M1: 42,785 km (0.111 R)
• M2: 218,413 km (0.101 R)
• M3: 661,372 km (0.119 R)
• M4: 1,812,977 km (0.115 R)
• M5: 2,549,597 km (0.105 R)
• M6: 2,862,555 km (0.109 R)
• M7: 3,182,246 km (0.112 R)
• M8: 4,945,406 km (0.055 R)
• M9: 5,378,642 km (0.067 R)
• M10: 6,060,808 km (0.102 R)
• M11: 8,883,870 km (0.075 R)
• M12: 8,994,422 km (0.11 R)
• M13: 11,797,138 km (0.079 R)
• M14: 13,274,567 km (0.095 R)
• M15: 13,908,413 km (0.11 R)
• M16: 17,153,939 km (0.081 R)
• M17: 20,805,174 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 697

Radius: 7.4

Gravity: 12.73 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 7.67 AU - 8.91 AU

Year: 16189 Days

Day: 20 Hours

Environment

Temp: -239 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 66,470,593 km

• M1: 135,685 km (0.09 R)
• M2: 733,478 km (0.071 R)
• M3: 1,938,489 km (0.057 R)
• M4: 2,186,522 km (0.115 R)
• M5: 2,434,406 km (0.087 R)
• M6: 3,373,133 km (0.106 R)
• M7: 3,734,412 km (0.086 R)
• M8: 5,480,817 km (0.068 R)
• M9: 5,980,923 km (0.069 R)
• M10: 7,806,166 km (0.04 R)
• M11: 10,602,450 km (0.088 R)
• M12: 11,686,885 km (0.086 R)
• M13: 12,843,426 km (0.106 R)
• M14: 13,177,777 km (0.094 R)
• M15: 17,821,146 km (0.096 R)
• M16: 18,069,927 km (0.045 R)
• M17: 19,088,987 km (0.057 R)
• M18: 20,963,598 km (0.12 R)
• M19: 23,055,575 km (0.067 R)
• M20: 26,020,754 km (0.099 R)
• M21: 32,079,169 km (0.075 R)
• M22: 32,819,230 km (0.098 R)
• M23: 42,018,601 km (0.096 R)
• M24: 51,108,916 km (0.083 R)
• M25: 53,312,044 km (0.107 R)
• M26: 54,002,438 km (0.109 R)
• M27: 57,544,167 km (0.062 R)
• M28: 60,300,059 km (0.071 R)
• M29: 60,861,500 km (0.093 R)
• M30: 63,915,391 km (0.096 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 442 - 16,407 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit