🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354

Radius: 10.9

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.47 AU - 0.77 AU

Year: 331 Days

Day: 6.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,920,348 km

• M1: 136,882 km (0.119 R)
• M2: 489,335 km (0.086 R)
• M3: 875,297 km (0.044 R)
• M4: 1,221,915 km (0.117 R)
• M5: 1,974,542 km (0.1 R)
• M6: 2,381,897 km (0.085 R)
• M7: 3,118,517 km (0.063 R)
• M8: 3,897,773 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.3

Radius: 12.5

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.65 AU - 0.69 AU

Year: 372 Days

Day: 6.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,920,348 km

• M1: 155,582 km (0.11 R)
• M2: 586,424 km (0.073 R)
• M3: 1,018,014 km (0.118 R)
• M4: 1,499,569 km (0.102 R)
• M5: 2,268,203 km (0.117 R)
• M6: 2,931,520 km (0.097 R)
• M7: 3,560,878 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.8

Radius: 9.5

Gravity: 7.62 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.71 AU - 0.89 AU

Year: 485 Days

Day: 6 Hours

Environment

Temp: -158 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,920,348 km

• M1: 118,182 km (0.042 R)
• M2: 470,336 km (0.103 R)
• M3: 811,269 km (0.054 R)
• M4: 1,121,685 km (0.071 R)
• M5: 1,648,419 km (0.093 R)
• M6: 2,115,164 km (0.083 R)
• M7: 2,556,478 km (0.057 R)
• M8: 3,436,861 km (0.088 R)
• M9: 4,132,791 km (0.116 R)
• M10: 4,492,424 km (0.054 R)
• M11: 5,307,732 km (0.109 R)
• M12: 5,803,500 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.8

Radius: 9.6

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.98 AU - 1.14 AU

Year: 740 Days

Day: 8.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,920,348 km

• M1: 119,529 km (0.101 R)
• M2: 449,542 km (0.029 R)
• M3: 1,780,215 km (0.116 R)
• M4: 2,271,045 km (0.079 R)
• M5: 2,683,187 km (0.102 R)
• M6: 3,181,498 km (0.063 R)
• M7: 3,578,231 km (0.082 R)
• M8: 4,287,924 km (0.117 R)
• M9: 5,560,702 km (0.108 R)
• M10: 6,215,941 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624.3

Radius: 13.5

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.67 AU - 1.83 AU

Year: 1570 Days

Day: 9.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,920,348 km

• M1: 174,282 km (0.103 R)
• M2: 639,232 km (0.061 R)
• M3: 1,282,652 km (0.049 R)
• M4: 1,797,867 km (0.089 R)
• M5: 2,259,676 km (0.075 R)
• M6: 2,747,365 km (0.11 R)
• M7: 3,636,874 km (0.086 R)
• M8: 4,078,487 km (0.09 R)
• M9: 4,710,538 km (0.092 R)
• M10: 6,313,928 km (0.095 R)
• M11: 7,162,297 km (0.079 R)
• M12: 9,905,922 km (0.079 R)
• M13: 10,367,432 km (0.066 R)
• M14: 11,121,854 km (0.088 R)
• M15: 12,625,312 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.9

Radius: 8.8

Gravity: 7.45 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.92 AU - 2 AU

Year: 1861 Days

Day: 5.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 33,920,348 km

• M1: 109,506 km (0.105 R)
• M2: 420,669 km (0.091 R)
• M3: 716,125 km (0.099 R)
• M4: 1,005,298 km (0.098 R)
• M5: 1,563,148 km (0.091 R)
• M6: 2,098,260 km (0.082 R)
• M7: 2,390,125 km (0.091 R)
• M8: 2,952,314 km (0.107 R)
• M9: 3,273,052 km (0.118 R)
• M10: 3,633,882 km (0.119 R)
• M11: 5,026,189 km (0.085 R)
• M12: 5,621,738 km (0.091 R)
• M13: 7,664,647 km (0.113 R)
• M14: 8,946,102 km (0.112 R)
• M15: 9,231,535 km (0.091 R)
• M16: 10,822,060 km (0.115 R)
• M17: 11,402,948 km (0.11 R)
• M18: 12,469,431 km (0.056 R)
• M19: 14,234,537 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 510.1

Radius: 9.2

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.42 AU - 2.96 AU

Year: 2992 Days

Day: 10.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 33,920,348 km

• M1: 114,442 km (0.082 R)
• M2: 668,104 km (0.074 R)
• M3: 1,535,772 km (0.119 R)
• M4: 2,095,118 km (0.107 R)
• M5: 2,544,361 km (0.094 R)
• M6: 3,636,724 km (0.093 R)
• M7: 4,143,711 km (0.11 R)
• M8: 4,653,092 km (0.079 R)
• M9: 5,061,943 km (0.037 R)
• M10: 5,396,444 km (0.041 R)
• M11: 6,827,796 km (0.12 R)
• M12: 7,447,431 km (0.045 R)
• M13: 7,849,699 km (0.029 R)
• M14: 10,807,399 km (0.073 R)
• M15: 11,323,512 km (0.077 R)
• M16: 13,014,865 km (0.087 R)
• M17: 14,916,852 km (0.113 R)
• M18: 15,457,200 km (0.105 R)
• M19: 15,858,272 km (0.084 R)
• M20: 18,806,547 km (0.094 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333.8

Radius: 9.7

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 3.3 AU - 4.7 AU

Year: 5426 Days

Day: 5.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 169.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,920,348 km

• M1: 120,576 km (0.102 R)
• M2: 554,559 km (0.086 R)
• M3: 2,442,036 km (0.114 R)
• M4: 3,004,972 km (0.082 R)
• M5: 4,529,674 km (0.054 R)
• M6: 5,434,143 km (0.094 R)
• M7: 6,790,547 km (0.055 R)
• M8: 7,497,696 km (0.112 R)
• M9: 8,217,710 km (0.07 R)
• M10: 9,020,752 km (0.115 R)
• M11: 9,676,439 km (0.116 R)
• M12: 11,565,860 km (0.038 R)
• M13: 15,027,854 km (0.098 R)
• M14: 16,850,106 km (0.081 R)
• M15: 20,207,381 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 111.2

Radius: 7

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 6.78 AU - 8.82 AU

Year: 14775 Days

Day: 25 Hours

Environment

Temp: -225 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,920,348 km

• M1: 87,066 km (0.095 R)
• M2: 1,359,097 km (0.036 R)
• M3: 2,109,480 km (0.087 R)
• M4: 2,436,052 km (0.033 R)
• M5: 2,833,683 km (0.117 R)
• M6: 3,211,417 km (0.119 R)
• M7: 3,899,268 km (0.115 R)
• M8: 4,548,673 km (0.102 R)
• M9: 6,287,000 km (0.069 R)
• M10: 7,000,432 km (0.093 R)
• M11: 7,468,374 km (0.096 R)
• M12: 9,464,608 km (0.087 R)
• M13: 9,769,788 km (0.093 R)
• M14: 10,354,267 km (0.118 R)
• M15: 13,964,512 km (0.107 R)
• M16: 16,204,591 km (0.053 R)
• M17: 16,516,054 km (0.054 R)
• M18: 16,959,013 km (0.096 R)
• M19: 18,267,994 km (0.094 R)
• M20: 23,380,053 km (0.079 R)
• M21: 25,666,955 km (0.061 R)
• M22: 27,565,352 km (0.053 R)
• M23: 28,729,972 km (0.12 R)
• M24: 31,253,239 km (0.051 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 323 - 13,367 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit