🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.4

Radius: 12.9

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.43 AU - 0.67 AU

Year: 272 Days

Day: 7.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 31,554,137 km

• M1: 160,369 km (0.12 R)
• M2: 660,624 km (0.087 R)
• M3: 1,390,961 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.5

Radius: 11

Gravity: 7.1 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.14 AU - 1.68 AU

Year: 1116 Days

Day: 10.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,554,137 km

• M1: 136,882 km (0.111 R)
• M2: 614,847 km (0.106 R)
• M3: 1,098,497 km (0.05 R)
• M4: 1,488,200 km (0.077 R)
• M5: 1,841,101 km (0.116 R)
• M6: 2,296,178 km (0.075 R)
• M7: 2,670,023 km (0.101 R)
• M8: 3,286,067 km (0.097 R)
• M9: 4,521,596 km (0.108 R)
• M10: 5,134,349 km (0.087 R)
• M11: 9,391,156 km (0.094 R)
• M12: 10,454,348 km (0.081 R)
• M13: 11,048,850 km (0.073 R)
• M14: 11,457,551 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.9

Radius: 14.4

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.37 AU - 1.55 AU

Year: 1176 Days

Day: 14.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,554,137 km

• M1: 179,069 km (0.082 R)
• M2: 659,577 km (0.052 R)
• M3: 1,125,425 km (0.068 R)
• M4: 1,620,444 km (0.085 R)
• M5: 2,115,912 km (0.051 R)
• M6: 3,155,468 km (0.097 R)
• M7: 3,691,477 km (0.086 R)
• M8: 6,566,748 km (0.109 R)
• M9: 7,522,230 km (0.119 R)
• M10: 8,623,270 km (0.065 R)
• M11: 10,040,859 km (0.079 R)
• M12: 10,789,447 km (0.041 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.1

Radius: 9.9

Gravity: 7.6 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.21 AU - 2.61 AU

Year: 2495 Days

Day: 12.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 31,554,137 km

• M1: 123,269 km (0.098 R)
• M2: 433,834 km (0.078 R)
• M3: 1,067,082 km (0.116 R)
• M4: 1,581,997 km (0.097 R)
• M5: 2,151,517 km (0.034 R)
• M6: 2,535,235 km (0.065 R)
• M7: 3,832,997 km (0.1 R)
• M8: 4,150,892 km (0.105 R)
• M9: 4,486,440 km (0.107 R)
• M10: 4,839,940 km (0.051 R)
• M11: 5,164,567 km (0.118 R)
• M12: 6,281,315 km (0.08 R)
• M13: 6,839,166 km (0.11 R)
• M14: 7,582,518 km (0.077 R)
• M15: 8,118,078 km (0.102 R)
• M16: 13,947,757 km (0.097 R)
• M17: 15,839,273 km (0.06 R)
• M18: 16,610,450 km (0.115 R)
• M19: 18,061,250 km (0.069 R)
• M20: 19,420,197 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.7

Radius: 10.1

Gravity: 8.79 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.41 AU - 3.65 AU

Year: 4423 Days

Day: 5.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 31,554,137 km

• M1: 125,662 km (0.03 R)
• M2: 466,297 km (0.052 R)
• M3: 888,013 km (0.106 R)
• M4: 1,370,316 km (0.053 R)
• M5: 2,022,264 km (0.107 R)
• M6: 2,468,963 km (0.117 R)
• M7: 3,583,767 km (0.084 R)
• M8: 4,314,403 km (0.088 R)
• M9: 5,420,380 km (0.084 R)
• M10: 6,070,532 km (0.09 R)
• M11: 7,923,750 km (0.079 R)
• M12: 8,297,296 km (0.072 R)
• M13: 9,120,533 km (0.056 R)
• M14: 10,083,495 km (0.068 R)
• M15: 11,020,576 km (0.1 R)
• M16: 11,534,145 km (0.043 R)
• M17: 12,161,559 km (0.102 R)
• M18: 12,964,750 km (0.094 R)
• M19: 19,948,876 km (0.113 R)
• M20: 22,892,813 km (0.063 R)
• M21: 23,652,471 km (0.039 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 393

Radius: 6.8

Gravity: 8.5 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 5.76 AU - 7.7 AU

Year: 11643 Days

Day: 22 Hours

Environment

Temp: -219 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 31,554,137 km

• M1: 84,523 km (0.083 R)
• M2: 458,069 km (0.11 R)
• M3: 1,202,617 km (0.103 R)
• M4: 2,154,359 km (0.087 R)
• M5: 2,614,821 km (0.079 R)
• M6: 3,007,216 km (0.116 R)
• M7: 6,199,485 km (0.047 R)
• M8: 6,634,366 km (0.04 R)
• M9: 7,769,515 km (0.116 R)
• M10: 10,519,124 km (0.085 R)
• M11: 11,890,039 km (0.098 R)
• M12: 14,163,478 km (0.084 R)
• M13: 14,537,323 km (0.061 R)
• M14: 16,301,082 km (0.083 R)
• M15: 19,018,527 km (0.112 R)
• M16: 19,550,048 km (0.063 R)
• M17: 24,878,275 km (0.082 R)
• M18: 28,067,702 km (0.102 R)
• M19: 28,459,948 km (0.093 R)
• M20: 29,760,252 km (0.105 R)
• M21: 31,099,602 km (0.059 R)
• M22: 35,244,361 km (0.072 R)
• M23: 38,886,919 km (0.09 R)
• M24: 43,947,516 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 79.7

Radius: 5.1

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 7.72 AU - 8.68 AU

Year: 15659 Days

Day: 17.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 31,554,137 km

• M1: 69,862 km (0.115 R)
• M2: 250,128 km (0.1 R)
• M3: 623,374 km (0.04 R)
• M4: 930,798 km (0.117 R)
• M5: 1,257,968 km (0.115 R)
• M6: 1,697,637 km (0.112 R)
• M7: 2,078,812 km (0.117 R)
• M8: 3,029,806 km (0.042 R)
• M9: 3,567,909 km (0.082 R)
• M10: 4,240,651 km (0.075 R)
• M11: 7,496,200 km (0.117 R)
• M12: 9,662,526 km (0.082 R)
• M13: 10,589,435 km (0.046 R)
• M14: 12,263,585 km (0.117 R)
• M15: 16,490,921 km (0.077 R)
• M16: 18,661,586 km (0.088 R)
• M17: 25,557,001 km (0.037 R)
• M18: 27,062,704 km (0.06 R)
• M19: 28,626,749 km (0.062 R)
• M20: 31,554,080 km (0.111 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 363 - 18,988 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit