🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.46 AU - 0.56 AU

Year: 239 Days

Day: 40.6 Hours

Environment

Temp: -118 °C

Axial Tilt: 7.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.9

Radius: 9.2

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.64 AU - 0.88 AU

Year: 435 Days

Day: 8.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 71,177,537 km

• M1: 114,442 km (0.048 R)
• M2: 431,141 km (0.113 R)
• M3: 859,290 km (0.089 R)
• M4: 1,962,724 km (0.1 R)
• M5: 3,912,284 km (0.072 R)
• M6: 4,320,835 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.7

Radius: 8.3

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.16 AU - 1.52 AU

Year: 1018 Days

Day: 6.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,177,537 km

• M1: 103,372 km (0.089 R)
• M2: 475,272 km (0.108 R)
• M3: 835,654 km (0.087 R)
• M4: 1,762,562 km (0.052 R)
• M5: 2,876,917 km (0.092 R)
• M6: 3,161,302 km (0.094 R)
• M7: 3,655,723 km (0.068 R)
• M8: 4,017,750 km (0.043 R)
• M9: 4,492,873 km (0.076 R)
• M10: 5,134,648 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.6

Radius: 11.4

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.22 AU - 1.92 AU

Year: 1291 Days

Day: 11.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,177,537 km

• M1: 141,819 km (0.045 R)
• M2: 556,803 km (0.113 R)
• M3: 1,146,518 km (0.079 R)
• M4: 1,894,358 km (0.116 R)
• M5: 2,408,227 km (0.074 R)
• M6: 3,100,117 km (0.084 R)
• M7: 3,768,520 km (0.111 R)
• M8: 4,253,666 km (0.108 R)
• M9: 5,245,350 km (0.071 R)
• M10: 6,289,842 km (0.106 R)
• M11: 7,547,961 km (0.063 R)
• M12: 8,264,983 km (0.092 R)
• M13: 8,906,758 km (0.119 R)
• M14: 9,739,569 km (0.067 R)
• M15: 11,312,142 km (0.082 R)
• M16: 12,893,392 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.3

Radius: 12.5

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.98 AU - 2.2 AU

Year: 1982 Days

Day: 7.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,177,537 km

• M1: 155,582 km (0.112 R)
• M2: 675,285 km (0.077 R)
• M3: 1,843,046 km (0.078 R)
• M4: 2,657,606 km (0.078 R)
• M5: 3,100,117 km (0.097 R)
• M6: 5,676,192 km (0.071 R)
• M7: 7,394,024 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.5

Radius: 8.5

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.88 AU - 3.66 AU

Year: 3879 Days

Day: 8.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,177,537 km

• M1: 105,766 km (0.112 R)
• M2: 552,315 km (0.063 R)
• M3: 1,231,340 km (0.118 R)
• M4: 2,385,039 km (0.093 R)
• M5: 2,804,212 km (0.081 R)
• M6: 3,828,359 km (0.102 R)
• M7: 6,164,479 km (0.107 R)
• M8: 11,080,864 km (0.092 R)
• M9: 11,434,962 km (0.117 R)
• M10: 12,290,363 km (0.102 R)
• M11: 13,013,668 km (0.099 R)
• M12: 14,874,367 km (0.106 R)
• M13: 16,854,295 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 461.4

Radius: 12

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 3.44 AU - 4.16 AU

Year: 4859 Days

Day: 11.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,177,537 km

• M1: 150,047 km (0.117 R)
• M2: 543,040 km (0.084 R)
• M3: 1,011,282 km (0.11 R)
• M4: 1,680,882 km (0.058 R)
• M5: 2,245,464 km (0.095 R)
• M6: 3,187,183 km (0.091 R)
• M7: 3,759,095 km (0.078 R)
• M8: 4,147,751 km (0.086 R)
• M9: 5,810,830 km (0.072 R)
• M10: 6,453,353 km (0.115 R)
• M11: 9,508,740 km (0.054 R)
• M12: 9,908,017 km (0.107 R)
• M13: 11,350,589 km (0.109 R)
• M14: 12,592,401 km (0.083 R)
• M15: 13,469,343 km (0.087 R)
• M16: 14,860,454 km (0.09 R)
• M17: 16,573,200 km (0.071 R)
• M18: 18,537,420 km (0.093 R)
• M19: 20,585,864 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 710.2

Radius: 6.2

Gravity: 18.48 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 7.46 AU - 10.58 AU

Year: 17771 Days

Day: 19 Hours

Environment

Temp: -235 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 71,177,537 km

• M1: 77,043 km (0.077 R)
• M2: 284,984 km (0.096 R)
• M3: 505,790 km (0.08 R)
• M4: 876,195 km (0.038 R)
• M5: 2,055,026 km (0.106 R)
• M6: 2,278,376 km (0.113 R)
• M7: 3,917,220 km (0.082 R)
• M8: 4,294,656 km (0.081 R)
• M9: 4,906,062 km (0.113 R)
• M10: 5,158,883 km (0.084 R)
• M11: 7,745,280 km (0.03 R)
• M12: 10,365,487 km (0.084 R)
• M13: 11,586,804 km (0.079 R)
• M14: 13,037,604 km (0.096 R)
• M15: 13,453,337 km (0.106 R)
• M16: 13,949,702 km (0.095 R)
• M17: 16,136,374 km (0.073 R)
• M18: 18,025,347 km (0.073 R)
• M19: 21,557,352 km (0.095 R)
• M20: 21,943,764 km (0.05 R)
• M21: 23,842,759 km (0.1 R)
• M22: 29,240,549 km (0.113 R)
• M23: 31,535,530 km (0.108 R)
• M24: 34,999,469 km (0.105 R)
• M25: 44,050,589 km (0.1 R)
• M26: 48,695,453 km (0.114 R)
• M27: 50,369,902 km (0.12 R)
• M28: 53,128,188 km (0.078 R)
• M29: 57,082,957 km (0.108 R)
• M30: 59,699,274 km (0.058 R)
• M31: 62,004,428 km (0.075 R)
• M32: 64,968,560 km (0.061 R)
• M33: 65,774,593 km (0.111 R)
• M34: 71,177,470 km (0.045 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 387 - 12,238 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit