🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 827.8

Radius: 14.5

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.93 AU - 1.07 AU

Year: 656 Days

Day: 11.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,481,506 km

• M1: 180,415 km (0.086 R)
• M2: 700,268 km (0.045 R)
• M3: 1,220,419 km (0.065 R)
• M4: 1,724,863 km (0.12 R)
• M5: 2,791,646 km (0.093 R)
• M6: 3,327,805 km (0.09 R)
• M7: 4,155,530 km (0.115 R)
• M8: 4,610,756 km (0.088 R)
• M9: 5,735,732 km (0.043 R)
• M10: 6,821,065 km (0.118 R)
• M11: 7,300,974 km (0.111 R)
• M12: 7,968,181 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390

Radius: 14.2

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.08 AU - 1.5 AU

Year: 961 Days

Day: 10.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 58,481,506 km

• M1: 179,667 km (0.117 R)
• M2: 624,272 km (0.075 R)
• M3: 1,084,585 km (0.117 R)
• M4: 1,912,758 km (0.081 R)
• M5: 2,355,867 km (0.085 R)
• M6: 3,035,640 km (0.093 R)
• M7: 3,496,401 km (0.091 R)
• M8: 4,995,372 km (0.038 R)
• M9: 6,760,777 km (0.086 R)
• M10: 7,692,771 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.6

Radius: 13.4

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.41 AU - 1.63 AU

Year: 1229 Days

Day: 10.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,481,506 km

• M1: 167,400 km (0.089 R)
• M2: 598,391 km (0.071 R)
• M3: 1,316,760 km (0.12 R)
• M4: 1,914,404 km (0.083 R)
• M5: 3,124,352 km (0.081 R)
• M6: 3,944,148 km (0.108 R)
• M7: 4,474,472 km (0.06 R)
• M8: 4,903,070 km (0.104 R)
• M9: 6,535,781 km (0.073 R)
• M10: 7,378,765 km (0.1 R)
• M11: 8,479,357 km (0.1 R)
• M12: 9,281,501 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.9

Radius: 10.2

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 4.43 AU - 4.83 AU

Year: 6536 Days

Day: 9 Hours

Environment

Temp: -206 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 58,481,506 km

• M1: 128,654 km (0.099 R)
• M2: 656,884 km (0.11 R)
• M3: 1,157,140 km (0.106 R)
• M4: 4,241,399 km (0.045 R)
• M5: 7,094,081 km (0.111 R)
• M6: 9,145,367 km (0.117 R)
• M7: 10,606,339 km (0.107 R)
• M8: 12,166,047 km (0.106 R)
• M9: 13,215,476 km (0.068 R)
• M10: 18,222,068 km (0.066 R)
• M11: 24,692,625 km (0.11 R)
• M12: 28,483,435 km (0.096 R)
• M13: 29,211,976 km (0.057 R)
• M14: 29,766,536 km (0.045 R)
• M15: 31,376,059 km (0.046 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 94.6

Radius: 13.8

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 5.34 AU - 5.88 AU

Year: 8717 Days

Day: 9.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,481,506 km

• M1: 173,982 km (0.112 R)
• M2: 783,444 km (0.065 R)
• M3: 1,298,958 km (0.101 R)
• M4: 3,607,403 km (0.078 R)
• M5: 5,189,550 km (0.117 R)
• M6: 6,622,099 km (0.045 R)
• M7: 7,257,591 km (0.037 R)
• M8: 10,575,223 km (0.085 R)
• M9: 11,402,649 km (0.082 R)
• M10: 13,517,514 km (0.096 R)
• M11: 14,693,054 km (0.079 R)
• M12: 16,256,950 km (0.105 R)
• M13: 17,079,290 km (0.113 R)
• M14: 18,393,956 km (0.112 R)
• M15: 18,926,375 km (0.088 R)
• M16: 20,585,714 km (0.061 R)
• M17: 21,744,649 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 599.9

Radius: 6.6

Gravity: 13.77 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 6.77 AU - 8.91 AU

Year: 14401 Days

Day: 17.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 58,481,506 km

• M1: 83,176 km (0.05 R)
• M2: 321,336 km (0.102 R)
• M3: 1,096,702 km (0.089 R)
• M4: 2,480,183 km (0.063 R)
• M5: 2,694,856 km (0.082 R)
• M6: 3,626,851 km (0.05 R)
• M7: 5,228,296 km (0.067 R)
• M8: 7,294,691 km (0.1 R)
• M9: 9,431,996 km (0.12 R)
• M10: 11,126,491 km (0.076 R)
• M11: 11,476,550 km (0.108 R)
• M12: 13,600,092 km (0.093 R)
• M13: 14,477,035 km (0.066 R)
• M14: 20,113,135 km (0.075 R)
• M15: 23,746,867 km (0.103 R)
• M16: 26,432,897 km (0.079 R)
• M17: 30,320,197 km (0.104 R)
• M18: 30,660,383 km (0.097 R)
• M19: 31,929,571 km (0.11 R)
• M20: 34,203,459 km (0.074 R)
• M21: 34,819,353 km (0.052 R)
• M22: 37,357,131 km (0.1 R)
• M23: 42,230,881 km (0.096 R)
• M24: 43,945,272 km (0.088 R)
• M25: 48,898,009 km (0.05 R)
• M26: 56,404,232 km (0.117 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: 519 - 19,149 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit