🌌 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: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.6

Radius: 11.6

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.53 AU - 0.69 AU

Year: 323 Days

Day: 13.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,563,172 km

• M1: 144,212 km (0.106 R)
• M2: 632,799 km (0.102 R)
• M3: 1,030,430 km (0.08 R)
• M4: 1,528,741 km (0.077 R)
• M5: 2,074,174 km (0.109 R)
• M6: 2,529,999 km (0.094 R)
• M7: 3,130,036 km (0.065 R)
• M8: 3,722,743 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380.3

Radius: 9.4

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.72 AU - 1.16 AU

Year: 618 Days

Day: 10.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,563,172 km

• M1: 117,135 km (0.091 R)
• M2: 413,189 km (0.119 R)
• M3: 1,122,134 km (0.099 R)
• M4: 2,153,910 km (0.111 R)
• M5: 2,457,743 km (0.101 R)
• M6: 2,779,678 km (0.05 R)
• M7: 3,175,664 km (0.058 R)
• M8: 3,866,806 km (0.084 R)
• M9: 4,550,917 km (0.098 R)
• M10: 6,158,795 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.1

Radius: 12.5

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.76 AU - 1.24 AU

Year: 678 Days

Day: 13.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,563,172 km

• M1: 155,432 km (0.097 R)
• M2: 550,371 km (0.03 R)
• M3: 1,024,297 km (0.037 R)
• M4: 2,537,329 km (0.105 R)
• M5: 2,969,069 km (0.085 R)
• M6: 3,532,903 km (0.094 R)
• M7: 4,389,950 km (0.114 R)
• M8: 5,052,818 km (0.112 R)
• M9: 5,607,527 km (0.111 R)
• M10: 6,643,791 km (0.097 R)
• M11: 7,242,033 km (0.114 R)
• M12: 7,731,966 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.8

Radius: 14.4

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.98 AU - 1.32 AU

Year: 836 Days

Day: 6.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 25,563,172 km

• M1: 179,368 km (0.104 R)
• M2: 631,453 km (0.105 R)
• M3: 1,480,869 km (0.115 R)
• M4: 2,256,085 km (0.115 R)
• M5: 2,746,916 km (0.083 R)
• M6: 3,609,348 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.6

Radius: 13.9

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.06 AU - 1.4 AU

Year: 925 Days

Day: 13.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,563,172 km

• M1: 173,982 km (0.109 R)
• M2: 826,229 km (0.057 R)
• M3: 1,286,841 km (0.116 R)
• M4: 1,730,099 km (0.06 R)
• M5: 2,757,388 km (0.09 R)
• M6: 3,685,493 km (0.088 R)
• M7: 4,435,876 km (0.097 R)
• M8: 4,883,622 km (0.044 R)
• M9: 5,418,884 km (0.077 R)
• M10: 5,891,463 km (0.073 R)
• M11: 7,405,843 km (0.081 R)
• M12: 8,577,344 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.1

Radius: 8.5

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.52 AU - 1.64 AU

Year: 1347 Days

Day: 9.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,563,172 km

• M1: 105,915 km (0.095 R)
• M2: 383,270 km (0.118 R)
• M3: 924,964 km (0.084 R)
• M4: 2,545,408 km (0.12 R)
• M5: 2,963,983 km (0.091 R)
• M6: 3,817,738 km (0.113 R)
• M7: 4,189,189 km (0.093 R)
• M8: 6,044,652 km (0.098 R)
• M9: 7,084,207 km (0.114 R)
• M10: 7,385,198 km (0.115 R)
• M11: 7,743,186 km (0.071 R)

Asteroid Belt

Center: 2.28 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380.6

Radius: 13.1

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2.72 AU - 3.22 AU

Year: 3472 Days

Day: 14.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 25,563,172 km

• M1: 163,211 km (0.095 R)
• M2: 600,336 km (0.06 R)
• M3: 1,172,698 km (0.054 R)
• M4: 1,603,240 km (0.077 R)
• M5: 2,324,302 km (0.119 R)
• M6: 3,135,123 km (0.119 R)
• M7: 3,700,004 km (0.051 R)
• M8: 4,522,493 km (0.092 R)
• M9: 5,058,502 km (0.073 R)
• M10: 5,562,049 km (0.069 R)
• M11: 6,840,213 km (0.109 R)
• M12: 7,921,207 km (0.109 R)
• M13: 8,502,844 km (0.056 R)
• M14: 9,357,796 km (0.117 R)
• M15: 10,534,981 km (0.045 R)
• M16: 11,932,973 km (0.075 R)
• M17: 12,397,026 km (0.091 R)
• M18: 13,361,334 km (0.056 R)
• M19: 14,612,271 km (0.085 R)
• M20: 15,990,666 km (0.077 R)
• M21: 18,665,177 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.4

Radius: 12.9

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 4.06 AU - 5.72 AU

Year: 7334 Days

Day: 5.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 25,563,172 km

• M1: 160,519 km (0.105 R)
• M2: 771,476 km (0.118 R)
• M3: 1,234,033 km (0.112 R)
• M4: 2,940,795 km (0.071 R)
• M5: 4,929,100 km (0.062 R)
• M6: 5,485,904 km (0.086 R)
• M7: 6,912,469 km (0.075 R)
• M8: 9,567,532 km (0.067 R)
• M9: 9,995,831 km (0.117 R)
• M10: 10,738,135 km (0.096 R)
• M11: 11,200,991 km (0.088 R)
• M12: 15,141,249 km (0.118 R)
• M13: 15,593,184 km (0.057 R)
• M14: 16,524,282 km (0.118 R)
• M15: 17,775,369 km (0.096 R)
• M16: 19,238,436 km (0.097 R)
• M17: 20,309,407 km (0.079 R)
• M18: 21,989,840 km (0.115 R)
• M19: 24,021,977 km (0.085 R)
• M20: 25,353,847 km (0.092 R)
• M21: 29,846,421 km (0.111 R)
• M22: 31,489,454 km (0.077 R)
• M23: 33,956,173 km (0.039 R)
• M24: 37,480,849 km (0.03 R)
• M25: 41,117,573 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 27.9

Radius: 6.8

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 7.86 AU - 10.78 AU

Year: 19298 Days

Day: 17.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 25,563,172 km

• M1: 86,767 km (0.112 R)
• M2: 402,717 km (0.088 R)
• M3: 699,520 km (0.053 R)
• M4: 1,059,751 km (0.079 R)
• M5: 1,303,297 km (0.101 R)
• M6: 1,516,025 km (0.119 R)
• M7: 2,453,106 km (0.026 R)
• M8: 3,404,997 km (0.054 R)
• M9: 4,323,528 km (0.08 R)
• M10: 5,587,929 km (0.1 R)
• M11: 7,178,903 km (0.094 R)
• M12: 8,202,302 km (0.073 R)
• M13: 9,834,115 km (0.078 R)
• M14: 15,897,915 km (0.108 R)
• M15: 17,745,150 km (0.106 R)
• M16: 19,411,371 km (0.093 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: 488 - 12,277 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit