🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454.1

Radius: 14.4

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.03 AU - 1.17 AU

Year: 796 Days

Day: 5.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,626,646 km

• M1: 180,864 km (0.115 R)
• M2: 1,140,833 km (0.073 R)
• M3: 1,600,847 km (0.038 R)
• M4: 2,351,679 km (0.068 R)
• M5: 3,082,763 km (0.102 R)
• M6: 3,792,904 km (0.116 R)
• M7: 4,407,004 km (0.1 R)
• M8: 4,885,866 km (0.118 R)
• M9: 5,435,040 km (0.086 R)
• M10: 6,082,799 km (0.076 R)
• M11: 6,970,064 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565.5

Radius: 11.4

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.69 AU - 2.77 AU

Year: 2299 Days

Day: 10.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,626,646 km

• M1: 143,315 km (0.115 R)
• M2: 512,971 km (0.113 R)
• M3: 1,017,116 km (0.066 R)
• M4: 1,372,560 km (0.082 R)
• M5: 2,195,798 km (0.104 R)
• M6: 2,835,328 km (0.049 R)
• M7: 4,071,755 km (0.058 R)
• M8: 4,527,729 km (0.09 R)
• M9: 4,908,306 km (0.067 R)
• M10: 5,979,576 km (0.12 R)
• M11: 6,623,745 km (0.085 R)
• M12: 8,142,911 km (0.106 R)
• M13: 8,612,200 km (0.081 R)
• M14: 10,165,026 km (0.099 R)
• M15: 10,783,763 km (0.117 R)
• M16: 14,351,223 km (0.102 R)
• M17: 16,623,315 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.2

Radius: 10.2

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 2.11 AU - 2.79 AU

Year: 2647 Days

Day: 12.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 38,626,646 km

• M1: 126,859 km (0.052 R)
• M2: 630,106 km (0.098 R)
• M3: 1,059,452 km (0.086 R)
• M4: 1,413,700 km (0.052 R)
• M5: 2,637,859 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.8

Radius: 9.8

Gravity: 10.33 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 2.43 AU - 3.47 AU

Year: 3497 Days

Day: 7.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 38,626,646 km

• M1: 126,111 km (0.086 R)
• M2: 487,689 km (0.068 R)
• M3: 838,197 km (0.092 R)
• M4: 1,280,558 km (0.103 R)
• M5: 1,699,133 km (0.038 R)
• M6: 2,237,535 km (0.104 R)
• M7: 2,563,659 km (0.065 R)
• M8: 3,352,189 km (0.075 R)
• M9: 3,911,386 km (0.115 R)
• M10: 4,248,280 km (0.093 R)
• M11: 5,625,179 km (0.04 R)
• M12: 5,997,079 km (0.043 R)
• M13: 7,080,617 km (0.117 R)
• M14: 7,966,535 km (0.099 R)
• M15: 9,352,410 km (0.056 R)
• M16: 10,165,175 km (0.05 R)
• M17: 11,157,308 km (0.027 R)
• M18: 11,608,346 km (0.105 R)
• M19: 12,118,325 km (0.116 R)
• M20: 13,535,017 km (0.076 R)
• M21: 14,681,236 km (0.092 R)
• M22: 16,987,885 km (0.076 R)
• M23: 24,805,421 km (0.081 R)
• M24: 25,574,354 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.9

Radius: 10.5

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 3.46 AU - 5.36 AU

Year: 6392 Days

Day: 6.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,626,646 km

• M1: 131,347 km (0.083 R)
• M2: 531,671 km (0.06 R)
• M3: 1,544,598 km (0.09 R)
• M4: 1,958,535 km (0.117 R)
• M5: 3,133,028 km (0.03 R)
• M6: 6,010,543 km (0.09 R)
• M7: 7,367,994 km (0.11 R)
• M8: 10,539,020 km (0.101 R)
• M9: 10,913,613 km (0.037 R)
• M10: 12,040,085 km (0.097 R)
• M11: 14,408,369 km (0.108 R)
• M12: 16,564,673 km (0.067 R)
• M13: 17,523,595 km (0.103 R)
• M14: 18,859,205 km (0.083 R)
• M15: 22,493,685 km (0.038 R)
• M16: 24,231,414 km (0.103 R)
• M17: 29,055,796 km (0.084 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 362.5

Radius: 7

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 4.79 AU - 6.97 AU

Year: 9842 Days

Day: 24.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 38,626,646 km

• M1: 100,679 km (0.096 R)
• M2: 729,140 km (0.118 R)
• M3: 1,513,182 km (0.117 R)
• M4: 1,785,002 km (0.064 R)
• M5: 2,170,665 km (0.111 R)
• M6: 2,518,331 km (0.118 R)
• M7: 2,842,509 km (0.09 R)
• M8: 3,087,850 km (0.077 R)
• M9: 4,346,417 km (0.108 R)
• M10: 4,729,237 km (0.054 R)
• M11: 5,593,764 km (0.115 R)
• M12: 12,660,468 km (0.12 R)
• M13: 13,102,829 km (0.108 R)
• M14: 13,670,253 km (0.082 R)
• M15: 14,915,207 km (0.115 R)
• M16: 18,743,416 km (0.058 R)
• M17: 21,036,153 km (0.044 R)
• M18: 23,179,741 km (0.109 R)
• M19: 24,009,261 km (0.117 R)
• M20: 25,815,656 km (0.055 R)
• M21: 30,281,003 km (0.118 R)
• M22: 36,775,944 km (0.096 R)
• M23: 38,361,083 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 72.1

Radius: 6

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 6.03 AU - 7.09 AU

Year: 11598 Days

Day: 18 Hours

Environment

Temp: -231 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 38,626,646 km

• M1: 77,342 km (0.113 R)
• M2: 389,702 km (0.035 R)
• M3: 688,449 km (0.06 R)
• M4: 4,062,330 km (0.054 R)
• M5: 4,448,741 km (0.078 R)
• M6: 14,679,740 km (0.04 R)
• M7: 18,171,653 km (0.118 R)
• M8: 20,960,906 km (0.095 R)
• M9: 23,733,104 km (0.056 R)
• M10: 24,832,798 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 195

Radius: 6.9

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 5.98 AU - 8.58 AU

Year: 13558 Days

Day: 17 Hours

Environment

Temp: -238 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 38,626,646 km

• M1: 85,869 km (0.05 R)
• M2: 389,553 km (0.114 R)
• M3: 869,912 km (0.092 R)
• M4: 1,095,505 km (0.106 R)
• M5: 1,408,913 km (0.098 R)
• M6: 1,627,475 km (0.103 R)
• M7: 2,069,836 km (0.105 R)
• M8: 2,461,035 km (0.093 R)
• M9: 2,982,234 km (0.118 R)
• M10: 3,788,566 km (0.093 R)
• M11: 4,675,831 km (0.073 R)
• M12: 5,198,227 km (0.062 R)
• M13: 5,567,734 km (0.108 R)
• M14: 6,359,106 km (0.1 R)
• M15: 6,926,980 km (0.051 R)
• M16: 7,336,579 km (0.111 R)
• M17: 8,790,969 km (0.12 R)
• M18: 11,267,113 km (0.101 R)
• M19: 12,097,681 km (0.083 R)
• M20: 14,173,501 km (0.106 R)
• M21: 14,471,051 km (0.067 R)
• M22: 16,541,186 km (0.112 R)
• M23: 20,796,348 km (0.11 R)
• M24: 22,202,718 km (0.108 R)
• M25: 23,256,934 km (0.086 R)
• M26: 24,090,493 km (0.104 R)
• M27: 26,171,699 km (0.118 R)
• M28: 27,902,097 km (0.038 R)
• M29: 28,842,769 km (0.068 R)
• M30: 29,321,033 km (0.12 R)
• M31: 33,129,795 km (0.116 R)
• M32: 38,166,007 km (0.118 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 284 - 16,359 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit