🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.2

Radius: 9.4

Gravity: 10.7 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.69 AU - 0.71 AU

Year: 391 Days

Day: 9.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,081,413 km

• M1: 116,986 km (0.045 R)
• M2: 673,340 km (0.104 R)
• M3: 974,032 km (0.027 R)
• M4: 1,756,578 km (0.113 R)
• M5: 2,413,163 km (0.069 R)
• M6: 2,932,717 km (0.071 R)
• M7: 3,663,053 km (0.087 R)
• M8: 4,223,297 km (0.094 R)
• M9: 5,431,599 km (0.077 R)
• M10: 6,088,633 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.5

Radius: 9.3

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.81 AU - 1.01 AU

Year: 579 Days

Day: 10.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,081,413 km

• M1: 115,639 km (0.057 R)
• M2: 823,985 km (0.1 R)
• M3: 1,234,781 km (0.095 R)
• M4: 1,635,105 km (0.076 R)
• M5: 2,079,261 km (0.087 R)
• M6: 2,403,439 km (0.072 R)
• M7: 2,843,556 km (0.119 R)
• M8: 3,822,226 km (0.03 R)
• M9: 4,452,182 km (0.104 R)
• M10: 5,565,938 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.5

Radius: 14.2

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.96 AU - 1.18 AU

Year: 738 Days

Day: 8.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,081,413 km

• M1: 176,675 km (0.116 R)
• M2: 622,626 km (0.051 R)
• M3: 1,072,168 km (0.045 R)
• M4: 1,636,152 km (0.075 R)
• M5: 2,378,008 km (0.118 R)
• M6: 2,856,571 km (0.07 R)
• M7: 3,543,076 km (0.089 R)
• M8: 4,055,598 km (0.063 R)
• M9: 5,787,343 km (0.049 R)
• M10: 6,502,421 km (0.044 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823

Radius: 12.8

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.24 AU - 1.68 AU

Year: 1176 Days

Day: 14.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 20,081,413 km

• M1: 170,242 km (0.078 R)
• M2: 685,757 km (0.106 R)
• M3: 1,187,807 km (0.032 R)
• M4: 2,008,202 km (0.087 R)
• M5: 2,715,501 km (0.108 R)
• M6: 3,354,283 km (0.079 R)
• M7: 4,023,285 km (0.095 R)
• M8: 4,572,908 km (0.078 R)
• M9: 5,845,387 km (0.086 R)
• M10: 6,458,290 km (0.11 R)
• M11: 7,013,747 km (0.117 R)
• M12: 7,470,618 km (0.119 R)
• M13: 8,248,527 km (0.086 R)
• M14: 10,479,331 km (0.079 R)
• M15: 11,351,038 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.3

Radius: 10.8

Gravity: 6.99 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.8 AU - 1.86 AU

Year: 1651 Days

Day: 11.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 20,081,413 km

• M1: 134,339 km (0.091 R)
• M2: 568,472 km (0.083 R)
• M3: 1,047,035 km (0.099 R)
• M4: 1,542,803 km (0.058 R)
• M5: 2,167,972 km (0.085 R)
• M6: 2,682,888 km (0.108 R)
• M7: 3,246,274 km (0.098 R)
• M8: 4,200,259 km (0.054 R)
• M9: 4,815,107 km (0.12 R)
• M10: 5,980,474 km (0.12 R)
• M11: 6,324,400 km (0.064 R)
• M12: 7,078,822 km (0.086 R)
• M13: 7,464,036 km (0.05 R)
• M14: 9,051,120 km (0.112 R)
• M15: 10,077,810 km (0.079 R)
• M16: 10,780,322 km (0.06 R)
• M17: 11,217,297 km (0.068 R)
• M18: 11,894,826 km (0.061 R)
• M19: 12,559,639 km (0.115 R)
• M20: 13,290,424 km (0.079 R)
• M21: 15,015,587 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768

Radius: 13.1

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.28 AU - 3.66 AU

Year: 4310 Days

Day: 13.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 20,081,413 km

• M1: 162,912 km (0.095 R)
• M2: 796,459 km (0.087 R)
• M3: 1,481,019 km (0.061 R)
• M4: 2,286,005 km (0.063 R)
• M5: 3,568,807 km (0.056 R)
• M6: 4,135,334 km (0.079 R)
• M7: 6,961,387 km (0.112 R)
• M8: 8,890,302 km (0.076 R)
• M9: 10,489,653 km (0.117 R)
• M10: 12,273,309 km (0.101 R)
• M11: 12,811,113 km (0.08 R)
• M12: 14,845,793 km (0.117 R)
• M13: 18,258,121 km (0.116 R)
• M14: 18,830,931 km (0.044 R)
• M15: 20,484,885 km (0.069 R)
• M16: 22,018,862 km (0.032 R)
• M17: 22,813,974 km (0.052 R)
• M18: 23,778,282 km (0.104 R)
• M19: 24,924,501 km (0.076 R)
• M20: 25,393,191 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 725

Radius: 5.4

Gravity: 24.86 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 5.56 AU - 6.82 AU

Year: 10270 Days

Day: 20.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 20,081,413 km

• M1: 67,169 km (0.116 R)
• M2: 238,160 km (0.051 R)
• M3: 429,645 km (0.09 R)
• M4: 695,331 km (0.081 R)
• M5: 949,946 km (0.109 R)
• M6: 1,145,620 km (0.1 R)
• M7: 1,950,756 km (0.042 R)
• M8: 2,159,894 km (0.109 R)
• M9: 2,442,335 km (0.053 R)
• M10: 2,664,787 km (0.111 R)
• M11: 4,268,326 km (0.109 R)
• M12: 4,592,056 km (0.119 R)
• M13: 5,092,162 km (0.096 R)
• M14: 7,713,715 km (0.117 R)
• M15: 8,881,326 km (0.025 R)
• M16: 11,393,673 km (0.098 R)
• M17: 12,306,968 km (0.095 R)
• M18: 12,542,734 km (0.088 R)
• M19: 14,935,103 km (0.102 R)
• M20: 16,379,620 km (0.045 R)
• M21: 18,447,213 km (0.042 R)
• M22: 21,352,852 km (0.034 R)
• M23: 22,124,179 km (0.102 R)
• M24: 22,298,011 km (0.109 R)
• M25: 28,051,396 km (0.102 R)
• M26: 29,603,773 km (0.087 R)
• M27: 31,431,410 km (0.119 R)
• M28: 33,105,261 km (0.089 R)
• M29: 35,905,733 km (0.115 R)
• M30: 37,363,265 km (0.112 R)
• M31: 38,356,744 km (0.09 R)
• M32: 44,689,671 km (0.076 R)
• M33: 45,246,923 km (0.091 R)
• M34: 47,811,779 km (0.04 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 25.4

Radius: 4.7

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 5.94 AU - 9.34 AU

Year: 14082 Days

Day: 20.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 20,081,413 km

• M1: 94,845 km (0.106 R)
• M2: 260,300 km (0.111 R)
• M3: 784,641 km (0.1 R)
• M4: 1,064,538 km (0.092 R)
• M5: 1,408,314 km (0.086 R)
• M6: 2,204,325 km (0.117 R)
• M7: 2,745,869 km (0.032 R)
• M8: 4,340,283 km (0.095 R)
• M9: 7,134,472 km (0.117 R)
• M10: 7,976,409 km (0.112 R)
• M11: 10,195,244 km (0.077 R)
• M12: 11,383,650 km (0.102 R)
• M13: 12,573,402 km (0.096 R)
• M14: 13,703,464 km (0.108 R)
• M15: 18,389,468 km (0.114 R)
• M16: 18,788,745 km (0.114 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 404 - 12,305 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit