🌌 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 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.6

Radius: 8.2

Gravity: 12.75 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.59 AU - 0.59 AU

Year: 307 Days

Day: 9.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,033,036 km

• M1: 102,026 km (0.102 R)
• M2: 366,066 km (0.098 R)
• M3: 1,127,370 km (0.04 R)
• M4: 1,576,014 km (0.106 R)
• M5: 2,197,593 km (0.038 R)
• M6: 2,513,992 km (0.077 R)
• M7: 3,533,352 km (0.094 R)
• M8: 4,293,908 km (0.117 R)
• M9: 4,677,626 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.5

Radius: 8.5

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.59 AU - 0.83 AU

Year: 406 Days

Day: 9.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,033,036 km

• M1: 105,766 km (0.118 R)
• M2: 397,631 km (0.118 R)
• M3: 729,738 km (0.12 R)
• M4: 1,002,306 km (0.096 R)
• M5: 1,310,328 km (0.104 R)
• M6: 1,602,193 km (0.099 R)
• M7: 2,122,943 km (0.076 R)
• M8: 2,639,505 km (0.093 R)
• M9: 3,152,775 km (0.097 R)
• M10: 4,008,475 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.9

Radius: 10.2

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.72 AU - 2.28 AU

Year: 1918 Days

Day: 13 Hours

Environment

Temp: -208 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,033,036 km

• M1: 126,859 km (0.046 R)
• M2: 572,361 km (0.101 R)
• M3: 903,122 km (0.111 R)
• M4: 1,259,614 km (0.082 R)
• M5: 2,388,330 km (0.114 R)
• M6: 2,869,886 km (0.107 R)
• M7: 3,661,109 km (0.1 R)
• M8: 4,092,100 km (0.108 R)
• M9: 4,505,439 km (0.108 R)
• M10: 5,416,191 km (0.094 R)
• M11: 5,752,487 km (0.107 R)
• M12: 6,102,696 km (0.076 R)
• M13: 6,891,675 km (0.061 R)
• M14: 8,149,494 km (0.101 R)
• M15: 8,968,841 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962.2

Radius: 10.8

Gravity: 8.25 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 2.05 AU - 2.45 AU

Year: 2289 Days

Day: 14.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,033,036 km

• M1: 134,638 km (0.047 R)
• M2: 615,894 km (0.067 R)
• M3: 1,411,306 km (0.068 R)
• M4: 1,754,185 km (0.095 R)
• M5: 2,205,970 km (0.11 R)
• M6: 2,750,207 km (0.107 R)
• M7: 3,311,349 km (0.09 R)
• M8: 3,987,382 km (0.113 R)
• M9: 4,422,711 km (0.059 R)
• M10: 6,082,051 km (0.063 R)
• M11: 6,436,149 km (0.115 R)
• M12: 7,427,833 km (0.116 R)
• M13: 8,351,750 km (0.081 R)
• M14: 8,721,705 km (0.106 R)
• M15: 10,160,239 km (0.089 R)
• M16: 11,257,240 km (0.102 R)
• M17: 16,029,262 km (0.1 R)
• M18: 16,973,374 km (0.112 R)
• M19: 17,677,831 km (0.119 R)
• M20: 19,145,386 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.1

Radius: 13.6

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2.74 AU - 3.24 AU

Year: 3507 Days

Day: 8 Hours

Environment

Temp: -211 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,033,036 km

• M1: 169,345 km (0.09 R)
• M2: 701,614 km (0.089 R)
• M3: 1,668,764 km (0.074 R)
• M4: 3,860,822 km (0.088 R)
• M5: 4,781,896 km (0.082 R)
• M6: 5,761,762 km (0.109 R)
• M7: 6,748,360 km (0.109 R)
• M8: 7,709,825 km (0.113 R)
• M9: 9,018,956 km (0.032 R)
• M10: 10,679,343 km (0.081 R)
• M11: 11,232,407 km (0.091 R)
• M12: 11,759,889 km (0.116 R)
• M13: 13,986,803 km (0.096 R)
• M14: 15,226,670 km (0.118 R)
• M15: 15,764,324 km (0.112 R)
• M16: 17,279,900 km (0.103 R)
• M17: 19,199,391 km (0.054 R)
• M18: 20,210,672 km (0.1 R)
• M19: 21,058,294 km (0.087 R)
• M20: 21,794,016 km (0.113 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 817.7

Radius: 5.6

Gravity: 26.07 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 5.73 AU - 9.31 AU

Year: 13987 Days

Day: 21.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,033,036 km

• M1: 71,508 km (0.064 R)
• M2: 247,734 km (0.11 R)
• M3: 936,931 km (0.107 R)
• M4: 1,212,042 km (0.053 R)
• M5: 1,980,526 km (0.062 R)
• M6: 2,190,412 km (0.097 R)
• M7: 2,394,314 km (0.105 R)
• M8: 3,133,327 km (0.086 R)
• M9: 4,383,966 km (0.067 R)
• M10: 4,843,530 km (0.109 R)
• M11: 5,298,457 km (0.068 R)
• M12: 5,555,018 km (0.101 R)
• M13: 7,316,682 km (0.107 R)
• M14: 10,580,908 km (0.065 R)
• M15: 15,578,374 km (0.062 R)
• M16: 18,002,458 km (0.116 R)
• M17: 18,249,594 km (0.034 R)
• M18: 19,867,944 km (0.056 R)
• M19: 23,094,919 km (0.119 R)
• M20: 33,207,586 km (0.115 R)
• M21: 48,732,853 km (0.093 R)
• M22: 52,495,538 km (0.106 R)
• M23: 61,148,279 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 414.9

Radius: 6.1

Gravity: 11.15 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 8.25 AU - 11.33 AU

Year: 20776 Days

Day: 18.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,033,036 km

• M1: 77,492 km (0.118 R)
• M2: 316,699 km (0.115 R)
• M3: 507,137 km (0.118 R)
• M4: 1,447,509 km (0.079 R)
• M5: 1,684,472 km (0.055 R)
• M6: 3,051,647 km (0.074 R)
• M7: 4,522,643 km (0.089 R)
• M8: 7,370,238 km (0.107 R)
• M9: 12,226,484 km (0.119 R)
• M10: 14,394,008 km (0.069 R)
• M11: 15,643,599 km (0.086 R)
• M12: 15,947,881 km (0.097 R)
• M13: 22,602,293 km (0.092 R)
• M14: 27,239,079 km (0.106 R)
• M15: 29,029,467 km (0.12 R)
• M16: 33,593,249 km (0.115 R)
• M17: 47,679,385 km (0.073 R)
• M18: 50,935,083 km (0.12 R)
• M19: 58,066,563 km (0.093 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 403 - 10,985 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit