🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.2

Radius: 10.8

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.45 AU - 0.61 AU

Year: 257 Days

Day: 9.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 16,978,395 km

• M1: 134,339 km (0.072 R)
• M2: 499,657 km (0.104 R)
• M3: 871,258 km (0.076 R)
• M4: 1,423,424 km (0.112 R)
• M5: 1,808,040 km (0.095 R)
• M6: 2,176,350 km (0.044 R)
• M7: 2,586,248 km (0.108 R)
• M8: 3,216,953 km (0.085 R)
• M9: 3,831,949 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.6

Radius: 9.5

Gravity: 7.22 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.63 AU - 0.83 AU

Year: 416 Days

Day: 7.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 16,978,395 km

• M1: 118,182 km (0.068 R)
• M2: 555,606 km (0.029 R)
• M3: 1,050,027 km (0.118 R)
• M4: 1,369,569 km (0.113 R)
• M5: 1,689,558 km (0.107 R)
• M6: 2,034,980 km (0.071 R)
• M7: 2,717,296 km (0.11 R)
• M8: 4,037,497 km (0.1 R)
• M9: 4,883,772 km (0.108 R)
• M10: 5,269,585 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.1

Radius: 9.8

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.97 AU - 0.97 AU

Year: 637 Days

Day: 9.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 16,978,395 km

• M1: 121,922 km (0.093 R)
• M2: 475,422 km (0.057 R)
• M3: 1,092,962 km (0.103 R)
• M4: 1,496,577 km (0.115 R)
• M5: 1,921,884 km (0.1 R)
• M6: 2,397,306 km (0.112 R)
• M7: 3,318,230 km (0.106 R)
• M8: 3,991,720 km (0.102 R)
• M9: 5,094,406 km (0.086 R)
• M10: 6,121,545 km (0.03 R)
• M11: 6,486,414 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.7

Radius: 11.6

Gravity: 7.13 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.12 AU - 1.34 AU

Year: 910 Days

Day: 10.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 16,978,395 km

• M1: 157,078 km (0.096 R)
• M2: 568,771 km (0.117 R)
• M3: 977,622 km (0.113 R)
• M4: 1,886,579 km (0.106 R)
• M5: 2,254,440 km (0.12 R)
• M6: 2,846,399 km (0.085 R)
• M7: 3,292,200 km (0.096 R)
• M8: 4,624,070 km (0.093 R)
• M9: 5,146,316 km (0.109 R)
• M10: 5,939,035 km (0.112 R)
• M11: 7,096,325 km (0.116 R)
• M12: 7,463,887 km (0.082 R)
• M13: 8,210,679 km (0.117 R)
• M14: 8,616,239 km (0.088 R)
• M15: 9,006,689 km (0.107 R)
• M16: 10,342,898 km (0.055 R)
• M17: 10,816,524 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.3

Radius: 14.9

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.21 AU - 1.29 AU

Year: 932 Days

Day: 5.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 16,978,395 km

• M1: 185,352 km (0.074 R)
• M2: 860,936 km (0.101 R)
• M3: 1,391,410 km (0.109 R)
• M4: 2,085,993 km (0.119 R)
• M5: 2,687,975 km (0.109 R)
• M6: 3,295,342 km (0.082 R)
• M7: 3,978,256 km (0.069 R)
• M8: 4,650,100 km (0.104 R)
• M9: 5,931,556 km (0.116 R)
• M10: 6,414,757 km (0.109 R)
• M11: 7,247,867 km (0.112 R)
• M12: 8,331,405 km (0.108 R)
• M13: 9,048,128 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.7

Radius: 10.9

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.67 AU - 2.04 AU

Year: 1678 Days

Day: 9.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 16,978,395 km

• M1: 135,835 km (0.082 R)
• M2: 521,947 km (0.1 R)
• M3: 1,197,381 km (0.119 R)
• M4: 1,706,912 km (0.098 R)
• M5: 2,322,357 km (0.114 R)
• M6: 2,815,582 km (0.057 R)
• M7: 3,694,619 km (0.113 R)
• M8: 4,260,996 km (0.044 R)
• M9: 5,105,476 km (0.053 R)
• M10: 5,611,267 km (0.084 R)
• M11: 6,408,623 km (0.05 R)
• M12: 7,676,764 km (0.112 R)
• M13: 9,597,601 km (0.105 R)
• M14: 11,078,620 km (0.113 R)
• M15: 11,676,114 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.8

Radius: 10.5

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.54 AU - 2.86 AU

Year: 2959 Days

Day: 8.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 16,978,395 km

• M1: 130,898 km (0.119 R)
• M2: 473,328 km (0.12 R)
• M3: 859,141 km (0.117 R)
• M4: 1,308,832 km (0.042 R)
• M5: 1,770,491 km (0.09 R)
• M6: 2,485,868 km (0.071 R)
• M7: 2,964,282 km (0.095 R)
• M8: 3,350,244 km (0.085 R)
• M9: 3,843,020 km (0.075 R)
• M10: 4,588,615 km (0.037 R)
• M11: 5,152,599 km (0.074 R)
• M12: 5,786,446 km (0.079 R)
• M13: 7,439,203 km (0.109 R)
• M14: 8,659,922 km (0.041 R)
• M15: 9,051,120 km (0.115 R)
• M16: 9,659,834 km (0.044 R)
• M17: 10,623,992 km (0.09 R)
• M18: 11,224,927 km (0.038 R)
• M19: 14,804,804 km (0.106 R)
• M20: 16,084,913 km (0.088 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 198 - 17,159 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit