🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.9

Radius: 12.2

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.53 AU - 0.63 AU

Year: 305 Days

Day: 13.3 Hours

Environment

Temp: -144 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,623,277 km

• M1: 152,141 km (0.112 R)
• M2: 593,156 km (0.089 R)
• M3: 1,314,666 km (0.051 R)
• M4: 2,224,221 km (0.051 R)
• M5: 2,757,388 km (0.115 R)
• M6: 3,364,157 km (0.028 R)
• M7: 3,974,217 km (0.092 R)
• M8: 4,408,051 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.4

Radius: 13.1

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.38 AU - 2.16 AU

Year: 1625 Days

Day: 7.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,623,277 km

• M1: 163,062 km (0.116 R)
• M2: 648,208 km (0.113 R)
• M3: 1,128,716 km (0.086 R)
• M4: 1,641,837 km (0.08 R)
• M5: 2,254,739 km (0.082 R)
• M6: 4,423,609 km (0.115 R)
• M7: 6,297,173 km (0.119 R)
• M8: 7,628,145 km (0.095 R)
• M9: 8,129,148 km (0.104 R)
• M10: 8,993,974 km (0.034 R)
• M11: 9,765,749 km (0.082 R)
• M12: 10,199,433 km (0.113 R)
• M13: 11,544,019 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531

Radius: 13.4

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 2.11 AU - 2.71 AU

Year: 2582 Days

Day: 10 Hours

Environment

Temp: -198 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,623,277 km

• M1: 179,069 km (0.114 R)
• M2: 644,318 km (0.115 R)
• M3: 1,341,743 km (0.095 R)
• M4: 3,093,684 km (0.097 R)
• M5: 4,006,829 km (0.079 R)
• M6: 4,803,887 km (0.113 R)
• M7: 6,365,090 km (0.115 R)
• M8: 6,824,505 km (0.108 R)
• M9: 10,688,917 km (0.12 R)
• M10: 12,098,877 km (0.093 R)
• M11: 13,105,521 km (0.118 R)
• M12: 14,441,430 km (0.044 R)
• M13: 15,142,596 km (0.087 R)
• M14: 17,435,183 km (0.033 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.8

Radius: 10

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 3.43 AU - 4.53 AU

Year: 5481 Days

Day: 5.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,623,277 km

• M1: 124,316 km (0.075 R)
• M2: 463,305 km (0.116 R)
• M3: 826,229 km (0.118 R)
• M4: 1,234,182 km (0.062 R)
• M5: 4,135,633 km (0.112 R)
• M6: 4,905,464 km (0.116 R)
• M7: 5,515,673 km (0.061 R)
• M8: 7,016,888 km (0.065 R)
• M9: 8,698,219 km (0.108 R)
• M10: 11,069,345 km (0.101 R)
• M11: 11,472,511 km (0.065 R)
• M12: 14,521,465 km (0.063 R)
• M13: 15,443,736 km (0.103 R)
• M14: 17,165,608 km (0.071 R)
• M15: 20,314,044 km (0.087 R)
• M16: 22,306,389 km (0.094 R)
• M17: 23,240,478 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.6

Radius: 13.8

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 4 AU - 6.22 AU

Year: 7973 Days

Day: 8 Hours

Environment

Temp: -216 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,623,277 km

• M1: 174,132 km (0.061 R)
• M2: 624,122 km (0.114 R)
• M3: 1,250,189 km (0.073 R)
• M4: 1,681,330 km (0.117 R)
• M5: 2,131,770 km (0.101 R)
• M6: 2,679,747 km (0.117 R)
• M7: 3,210,670 km (0.094 R)
• M8: 4,064,125 km (0.105 R)
• M9: 4,817,799 km (0.101 R)
• M10: 6,050,486 km (0.115 R)
• M11: 7,161,400 km (0.119 R)
• M12: 9,474,931 km (0.088 R)
• M13: 9,983,713 km (0.09 R)
• M14: 12,067,761 km (0.06 R)
• M15: 13,724,408 km (0.09 R)
• M16: 15,155,311 km (0.071 R)
• M17: 16,292,106 km (0.101 R)
• M18: 17,836,405 km (0.093 R)
• M19: 18,492,690 km (0.083 R)
• M20: 23,833,484 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.8

Radius: 12.9

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.85 AU - 6.07 AU

Year: 8806 Days

Day: 9.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,623,277 km

• M1: 160,369 km (0.079 R)
• M2: 653,892 km (0.119 R)
• M3: 1,567,486 km (0.116 R)
• M4: 2,713,107 km (0.099 R)
• M5: 3,466,631 km (0.041 R)
• M6: 4,035,552 km (0.105 R)
• M7: 5,217,375 km (0.084 R)
• M8: 6,484,170 km (0.069 R)
• M9: 6,995,645 km (0.05 R)
• M10: 12,838,788 km (0.116 R)
• M11: 14,376,056 km (0.074 R)
• M12: 16,907,701 km (0.073 R)
• M13: 18,480,872 km (0.046 R)
• M14: 20,006,770 km (0.118 R)
• M15: 22,838,060 km (0.069 R)
• M16: 26,011,330 km (0.06 R)
• M17: 29,283,334 km (0.11 R)
• M18: 29,838,642 km (0.105 R)
• M19: 31,546,750 km (0.09 R)
• M20: 32,228,318 km (0.108 R)
• M21: 33,823,031 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 225.8

Radius: 5.3

Gravity: 8.04 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 6.3 AU - 9 AU

Year: 14605 Days

Day: 21.9 Hours

Environment

Temp: -241 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,623,277 km

• M1: 73,004 km (0.066 R)
• M2: 290,070 km (0.028 R)
• M3: 1,010,234 km (0.12 R)
• M4: 1,554,023 km (0.09 R)
• M5: 3,402,454 km (0.092 R)
• M6: 6,546,253 km (0.094 R)
• M7: 9,075,654 km (0.107 R)
• M8: 13,096,246 km (0.071 R)
• M9: 14,788,498 km (0.074 R)
• M10: 15,818,329 km (0.083 R)
• M11: 29,265,682 km (0.056 R)
• M12: 29,564,728 km (0.101 R)
• M13: 30,067,526 km (0.088 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 395 - 15,609 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit