🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.2

Radius: 12.2

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.59 AU - 0.85 AU

Year: 422 Days

Day: 6.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 74,912,065 km

• M1: 151,692 km (0.105 R)
• M2: 706,850 km (0.063 R)
• M3: 1,827,488 km (0.091 R)
• M4: 2,245,314 km (0.058 R)
• M5: 2,917,906 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.7

Radius: 8.6

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.43 AU - 1.61 AU

Year: 1294 Days

Day: 12.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,912,065 km

• M1: 106,962 km (0.078 R)
• M2: 406,009 km (0.113 R)
• M3: 674,686 km (0.044 R)
• M4: 985,700 km (0.11 R)
• M5: 1,324,988 km (0.115 R)
• M6: 1,859,352 km (0.031 R)
• M7: 2,563,060 km (0.101 R)
• M8: 3,152,476 km (0.046 R)
• M9: 3,499,693 km (0.09 R)
• M10: 3,915,275 km (0.102 R)
• M11: 4,347,913 km (0.099 R)
• M12: 4,762,747 km (0.096 R)
• M13: 5,065,234 km (0.03 R)
• M14: 5,506,548 km (0.098 R)
• M15: 5,859,001 km (0.085 R)
• M16: 6,986,370 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 313.4

Radius: 14.3

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.28 AU - 1.76 AU

Year: 1294 Days

Day: 6.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,912,065 km

• M1: 177,872 km (0.094 R)
• M2: 710,889 km (0.053 R)
• M3: 1,177,485 km (0.097 R)
• M4: 1,678,339 km (0.087 R)
• M5: 2,169,917 km (0.112 R)
• M6: 2,770,553 km (0.109 R)
• M7: 3,949,085 km (0.037 R)
• M8: 4,941,367 km (0.112 R)
• M9: 5,632,509 km (0.083 R)
• M10: 6,580,960 km (0.083 R)
• M11: 8,175,224 km (0.074 R)
• M12: 9,090,015 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.8

Radius: 14

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.33 AU - 2.11 AU

Year: 1557 Days

Day: 13.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,912,065 km

• M1: 174,132 km (0.101 R)
• M2: 669,750 km (0.112 R)
• M3: 1,365,829 km (0.08 R)
• M4: 1,907,074 km (0.083 R)
• M5: 3,280,981 km (0.094 R)
• M6: 4,204,598 km (0.05 R)
• M7: 5,334,062 km (0.051 R)
• M8: 5,918,092 km (0.092 R)
• M9: 8,110,748 km (0.106 R)
• M10: 9,163,468 km (0.083 R)
• M11: 10,274,980 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.3

Radius: 8.6

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.08 AU - 2.94 AU

Year: 2745 Days

Day: 7.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 100.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,912,065 km

• M1: 106,962 km (0.114 R)
• M2: 562,787 km (0.077 R)
• M3: 841,039 km (0.096 R)
• M4: 2,088,685 km (0.056 R)
• M5: 2,616,018 km (0.065 R)
• M6: 3,641,511 km (0.09 R)
• M7: 3,935,471 km (0.042 R)
• M8: 4,797,903 km (0.032 R)
• M9: 5,737,677 km (0.119 R)
• M10: 6,343,698 km (0.098 R)
• M11: 7,016,439 km (0.078 R)
• M12: 8,086,513 km (0.053 R)
• M13: 9,082,835 km (0.045 R)
• M14: 9,534,022 km (0.092 R)
• M15: 11,112,878 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.5

Radius: 13.8

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 3.04 AU - 4.12 AU

Year: 4676 Days

Day: 10.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,912,065 km

• M1: 171,589 km (0.115 R)
• M2: 740,509 km (0.079 R)
• M3: 1,735,335 km (0.104 R)
• M4: 2,211,505 km (0.067 R)
• M5: 2,903,246 km (0.036 R)
• M6: 3,372,834 km (0.107 R)
• M7: 4,221,652 km (0.092 R)
• M8: 5,180,724 km (0.109 R)
• M9: 6,408,025 km (0.083 R)
• M10: 6,970,662 km (0.11 R)
• M11: 7,969,378 km (0.078 R)
• M12: 8,899,428 km (0.082 R)
• M13: 10,883,395 km (0.088 R)
• M14: 13,042,840 km (0.068 R)
• M15: 14,168,414 km (0.101 R)
• M16: 17,171,143 km (0.105 R)
• M17: 18,194,691 km (0.077 R)
• M18: 19,055,926 km (0.074 R)
• M19: 22,548,289 km (0.105 R)
• M20: 25,617,139 km (0.05 R)
• M21: 26,783,704 km (0.027 R)
• M22: 30,496,124 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 200.3

Radius: 7.4

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.34 AU - 7.82 AU

Year: 11651 Days

Day: 19.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 74,912,065 km

• M1: 92,003 km (0.079 R)
• M2: 352,602 km (0.083 R)
• M3: 745,895 km (0.116 R)
• M4: 1,254,079 km (0.085 R)
• M5: 1,509,742 km (0.075 R)
• M6: 1,772,585 km (0.105 R)
• M7: 2,827,400 km (0.102 R)
• M8: 3,810,108 km (0.115 R)
• M9: 4,200,259 km (0.112 R)
• M10: 5,779,415 km (0.06 R)
• M11: 6,876,416 km (0.028 R)
• M12: 9,003,249 km (0.111 R)
• M13: 10,010,342 km (0.105 R)
• M14: 11,684,042 km (0.108 R)
• M15: 12,773,414 km (0.051 R)
• M16: 14,156,746 km (0.096 R)
• M17: 15,759,836 km (0.06 R)
• M18: 17,546,334 km (0.106 R)
• M19: 18,694,648 km (0.118 R)
• M20: 21,065,175 km (0.069 R)
• M21: 26,306,935 km (0.105 R)
• M22: 26,830,677 km (0.119 R)
• M23: 34,079,293 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 563.9

Radius: 7.7

Gravity: 9.51 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 8.24 AU - 11.58 AU

Year: 21534 Days

Day: 16.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,912,065 km

• M1: 111,899 km (0.085 R)
• M2: 363,672 km (0.083 R)
• M3: 633,547 km (0.119 R)
• M4: 2,176,948 km (0.081 R)
• M5: 4,636,936 km (0.12 R)
• M6: 6,254,089 km (0.083 R)
• M7: 8,318,240 km (0.082 R)
• M8: 13,805,939 km (0.115 R)
• M9: 16,663,408 km (0.113 R)
• M10: 21,410,148 km (0.086 R)
• M11: 29,081,078 km (0.108 R)
• M12: 31,532,838 km (0.07 R)
• M13: 33,590,855 km (0.074 R)
• M14: 50,216,864 km (0.076 R)
• M15: 53,374,127 km (0.117 R)
• M16: 54,093,244 km (0.063 R)
• M17: 57,221,934 km (0.107 R)
• M18: 63,635,643 km (0.098 R)
• M19: 72,689,905 km (0.115 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 278 - 15,335 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit