🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.1

Radius: 10.3

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.53 AU - 0.81 AU

Year: 385 Days

Day: 7.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,832,634 km

• M1: 128,355 km (0.115 R)
• M2: 462,856 km (0.092 R)
• M3: 885,919 km (0.079 R)
• M4: 1,223,711 km (0.095 R)
• M5: 1,635,703 km (0.114 R)
• M6: 1,976,786 km (0.075 R)
• M7: 2,312,035 km (0.105 R)
• M8: 2,735,247 km (0.111 R)
• M9: 3,220,992 km (0.105 R)
• M10: 3,628,347 km (0.075 R)
• M11: 4,044,079 km (0.083 R)
• M12: 4,647,557 km (0.048 R)
• M13: 5,092,760 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.8

Radius: 10.7

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.55 AU - 0.91 AU

Year: 438 Days

Day: 14.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 54,832,634 km

• M1: 133,292 km (0.09 R)
• M2: 472,131 km (0.091 R)
• M3: 818,600 km (0.098 R)
• M4: 1,174,044 km (0.112 R)
• M5: 1,533,677 km (0.114 R)
• M6: 2,031,838 km (0.062 R)
• M7: 2,568,595 km (0.045 R)
• M8: 3,088,149 km (0.11 R)
• M9: 3,676,966 km (0.07 R)
• M10: 4,176,324 km (0.104 R)
• M11: 4,677,177 km (0.082 R)
• M12: 5,140,183 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.5

Radius: 12.9

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.97 AU - 1.05 AU

Year: 713 Days

Day: 8.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,832,634 km

• M1: 160,369 km (0.103 R)
• M2: 613,501 km (0.059 R)
• M3: 1,545,496 km (0.114 R)
• M4: 2,283,163 km (0.069 R)
• M5: 2,739,436 km (0.056 R)
• M6: 3,148,437 km (0.086 R)
• M7: 3,664,250 km (0.118 R)
• M8: 4,310,064 km (0.09 R)
• M9: 5,180,724 km (0.078 R)
• M10: 5,613,810 km (0.112 R)
• M11: 7,060,870 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.4

Radius: 14

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.28 AU - 1.92 AU

Year: 1423 Days

Day: 6.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 54,832,634 km

• M1: 174,132 km (0.112 R)
• M2: 644,468 km (0.064 R)
• M3: 1,196,933 km (0.038 R)
• M4: 1,948,063 km (0.104 R)
• M5: 2,983,879 km (0.026 R)
• M6: 3,693,871 km (0.111 R)
• M7: 5,105,476 km (0.11 R)
• M8: 6,173,455 km (0.084 R)
• M9: 7,008,810 km (0.073 R)
• M10: 9,156,437 km (0.05 R)
• M11: 11,452,315 km (0.036 R)
• M12: 14,366,033 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.5

Radius: 8.4

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.64 AU - 2.02 AU

Year: 1740 Days

Day: 11.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,832,634 km

• M1: 104,569 km (0.095 R)
• M2: 430,094 km (0.084 R)
• M3: 944,860 km (0.053 R)
• M4: 3,200,347 km (0.115 R)
• M5: 4,773,070 km (0.084 R)
• M6: 6,080,106 km (0.117 R)
• M7: 6,503,618 km (0.044 R)
• M8: 9,470,592 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.3

Radius: 11.9

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 3.22 AU - 3.92 AU

Year: 4741 Days

Day: 6.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 54,832,634 km

• M1: 147,952 km (0.117 R)
• M2: 557,402 km (0.06 R)
• M3: 1,103,434 km (0.089 R)
• M4: 1,487,452 km (0.073 R)
• M5: 2,043,357 km (0.087 R)
• M6: 2,457,145 km (0.114 R)
• M7: 3,019,035 km (0.116 R)
• M8: 3,440,153 km (0.098 R)
• M9: 4,422,113 km (0.088 R)
• M10: 5,100,240 km (0.107 R)
• M11: 5,487,998 km (0.116 R)
• M12: 5,944,870 km (0.086 R)
• M13: 6,637,658 km (0.107 R)
• M14: 7,441,148 km (0.078 R)
• M15: 9,241,558 km (0.076 R)
• M16: 10,495,787 km (0.07 R)
• M17: 11,354,628 km (0.044 R)
• M18: 13,000,953 km (0.113 R)
• M19: 13,991,440 km (0.107 R)
• M20: 14,392,362 km (0.066 R)
• M21: 16,415,524 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 414.6

Radius: 6.6

Gravity: 9.52 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 6.92 AU - 8.96 AU

Year: 15727 Days

Day: 21 Hours

Environment

Temp: -237 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 54,832,634 km

• M1: 82,578 km (0.108 R)
• M2: 513,569 km (0.032 R)
• M3: 1,309,879 km (0.105 R)
• M4: 1,681,779 km (0.078 R)
• M5: 2,349,883 km (0.062 R)
• M6: 2,573,233 km (0.066 R)
• M7: 3,354,882 km (0.036 R)
• M8: 4,255,461 km (0.071 R)
• M9: 5,205,408 km (0.106 R)
• M10: 6,722,629 km (0.059 R)
• M11: 13,772,279 km (0.113 R)
• M12: 21,644,718 km (0.102 R)
• M13: 36,011,349 km (0.088 R)
• M14: 36,760,685 km (0.086 R)
• M15: 38,161,370 km (0.072 R)
• M16: 48,069,087 km (0.09 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 449 - 14,393 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit