🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.8

Radius: 9.7

Gravity: 7.02 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.8 AU - 1.18 AU

Year: 668 Days

Day: 5.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,523,011 km

• M1: 122,521 km (0.062 R)
• M2: 435,928 km (0.068 R)
• M3: 806,333 km (0.059 R)
• M4: 1,309,580 km (0.114 R)
• M5: 1,906,475 km (0.096 R)
• M6: 2,297,973 km (0.077 R)
• M7: 3,244,329 km (0.076 R)
• M8: 3,584,814 km (0.098 R)
• M9: 4,095,840 km (0.104 R)
• M10: 4,478,811 km (0.093 R)
• M11: 4,802,391 km (0.092 R)
• M12: 6,138,001 km (0.118 R)
• M13: 6,497,484 km (0.047 R)
• M14: 7,346,602 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.8

Radius: 8.5

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.07 AU - 1.79 AU

Year: 1160 Days

Day: 6.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,523,011 km

• M1: 105,766 km (0.12 R)
• M2: 403,914 km (0.065 R)
• M3: 847,771 km (0.101 R)
• M4: 1,365,978 km (0.084 R)
• M5: 2,043,208 km (0.093 R)
• M6: 2,370,528 km (0.11 R)
• M7: 2,792,843 km (0.106 R)
• M8: 3,118,966 km (0.112 R)
• M9: 3,442,546 km (0.11 R)
• M10: 3,924,102 km (0.077 R)
• M11: 4,285,680 km (0.113 R)
• M12: 4,738,662 km (0.051 R)
• M13: 5,058,054 km (0.068 R)
• M14: 6,062,454 km (0.07 R)
• M15: 8,461,106 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.1

Radius: 14.9

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.58 AU - 2.16 AU

Year: 1734 Days

Day: 7.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,523,011 km

• M1: 185,352 km (0.067 R)
• M2: 676,482 km (0.057 R)
• M3: 1,295,218 km (0.084 R)
• M4: 1,808,189 km (0.107 R)
• M5: 2,521,023 km (0.092 R)
• M6: 3,495,205 km (0.1 R)
• M7: 4,497,810 km (0.117 R)
• M8: 5,253,728 km (0.103 R)
• M9: 5,751,589 km (0.076 R)
• M10: 6,424,481 km (0.066 R)
• M11: 7,545,567 km (0.069 R)
• M12: 9,404,470 km (0.119 R)
• M13: 10,011,090 km (0.108 R)
• M14: 10,542,012 km (0.118 R)
• M15: 11,480,889 km (0.118 R)
• M16: 12,174,574 km (0.093 R)
• M17: 13,247,639 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.9

Radius: 10.5

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.54 AU - 2.5 AU

Year: 1947 Days

Day: 5 Hours

Environment

Temp: -197 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,523,011 km

• M1: 131,945 km (0.069 R)
• M2: 477,516 km (0.057 R)
• M3: 1,293,872 km (0.107 R)
• M4: 1,929,065 km (0.05 R)
• M5: 3,110,738 km (0.095 R)
• M6: 3,817,738 km (0.106 R)
• M7: 4,323,079 km (0.085 R)
• M8: 4,665,658 km (0.113 R)
• M9: 5,026,638 km (0.071 R)
• M10: 5,719,276 km (0.06 R)
• M11: 6,876,117 km (0.116 R)
• M12: 9,170,200 km (0.093 R)
• M13: 9,923,126 km (0.037 R)
• M14: 11,347,896 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.1

Radius: 13.8

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.18 AU - 2.32 AU

Year: 2289 Days

Day: 8.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 43,523,011 km

• M1: 253,269 km (0.086 R)
• M2: 738,864 km (0.06 R)
• M3: 1,204,712 km (0.111 R)
• M4: 2,561,564 km (0.072 R)
• M5: 4,099,430 km (0.071 R)
• M6: 4,546,279 km (0.105 R)
• M7: 5,424,419 km (0.087 R)
• M8: 7,982,991 km (0.099 R)
• M9: 8,497,458 km (0.082 R)
• M10: 9,526,392 km (0.104 R)
• M11: 11,335,779 km (0.03 R)
• M12: 13,703,763 km (0.06 R)
• M13: 14,981,180 km (0.076 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 967.2

Radius: 4.7

Gravity: 43.78 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 5.58 AU - 6.22 AU

Year: 9720 Days

Day: 19.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 43,523,011 km

• M1: 58,642 km (0.1 R)
• M2: 247,285 km (0.039 R)
• M3: 532,718 km (0.06 R)
• M4: 814,710 km (0.056 R)
• M5: 963,560 km (0.044 R)
• M6: 1,705,865 km (0.081 R)
• M7: 2,241,724 km (0.12 R)
• M8: 2,476,892 km (0.095 R)
• M9: 2,996,595 km (0.071 R)
• M10: 3,356,378 km (0.097 R)
• M11: 4,426,900 km (0.12 R)
• M12: 5,357,848 km (0.12 R)
• M13: 8,875,642 km (0.11 R)
• M14: 9,871,066 km (0.107 R)
• M15: 16,124,855 km (0.062 R)
• M16: 18,764,061 km (0.102 R)
• M17: 19,324,455 km (0.103 R)
• M18: 21,244,094 km (0.048 R)
• M19: 21,852,659 km (0.086 R)
• M20: 26,144,173 km (0.093 R)
• M21: 26,742,265 km (0.082 R)
• M22: 30,305,088 km (0.104 R)
• M23: 40,303,462 km (0.115 R)
• M24: 40,967,526 km (0.063 R)
• M25: 42,591,112 km (0.075 R)
• M26: 43,696,940 km (0.108 R)
• M27: 44,116,562 km (0.11 R)
• M28: 45,821,828 km (0.077 R)
• M29: 49,363,408 km (0.107 R)
• M30: 49,514,801 km (0.046 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 363.5

Radius: 3.6

Gravity: 28.05 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 5.34 AU - 8.32 AU

Year: 12107 Days

Day: 15.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 43,523,011 km

• M1: 44,730 km (0.091 R)
• M2: 160,519 km (0.107 R)
• M3: 328,068 km (0.071 R)
• M4: 845,826 km (0.075 R)
• M5: 1,981,723 km (0.089 R)
• M6: 2,348,537 km (0.09 R)
• M7: 4,415,531 km (0.113 R)
• M8: 4,704,853 km (0.081 R)
• M9: 4,824,083 km (0.093 R)
• M10: 5,989,899 km (0.065 R)
• M11: 6,272,489 km (0.072 R)
• M12: 7,056,232 km (0.094 R)
• M13: 9,991,043 km (0.086 R)
• M14: 11,480,739 km (0.1 R)
• M15: 12,994,969 km (0.107 R)
• M16: 15,409,628 km (0.092 R)
• M17: 16,756,757 km (0.034 R)
• M18: 29,952,186 km (0.107 R)
• M19: 32,147,236 km (0.04 R)
• M20: 34,784,646 km (0.119 R)
• M21: 35,465,766 km (0.117 R)
• M22: 39,005,401 km (0.112 R)
• M23: 40,484,774 km (0.049 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 118.8

Radius: 3.5

Gravity: 9.7 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 8.31 AU - 11.27 AU

Year: 20776 Days

Day: 21.6 Hours

Environment

Temp: -243 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 43,523,011 km

• M1: 43,683 km (0.108 R)
• M2: 205,398 km (0.094 R)
• M3: 396,584 km (0.098 R)
• M4: 1,008,290 km (0.082 R)
• M5: 1,376,749 km (0.076 R)
• M6: 2,055,176 km (0.072 R)
• M7: 2,662,543 km (0.1 R)
• M8: 2,826,203 km (0.046 R)
• M9: 3,849,153 km (0.081 R)
• M10: 4,386,958 km (0.115 R)
• M11: 4,912,345 km (0.094 R)
• M12: 7,927,341 km (0.068 R)
• M13: 8,180,610 km (0.069 R)
• M14: 9,529,384 km (0.082 R)
• M15: 10,812,186 km (0.069 R)
• M16: 11,656,516 km (0.051 R)
• M17: 13,594,557 km (0.119 R)
• M18: 18,313,173 km (0.093 R)
• M19: 26,183,966 km (0.036 R)
• M20: 30,489,093 km (0.087 R)
• M21: 33,900,523 km (0.106 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 439 - 20,065 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit