🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.9

Radius: 10.8

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.43 AU - 0.61 AU

Year: 250 Days

Day: 14.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 69,159,895 km

• M1: 135,236 km (0.051 R)
• M2: 560,992 km (0.094 R)
• M3: 899,831 km (0.116 R)
• M4: 1,313,320 km (0.093 R)
• M5: 1,707,360 km (0.067 R)
• M6: 2,053,081 km (0.074 R)
• M7: 2,417,651 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107.5

Radius: 12.9

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.48 AU - 0.68 AU

Year: 295 Days

Day: 5.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 120 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 69,159,895 km

• M1: 160,519 km (0.115 R)
• M2: 605,572 km (0.108 R)
• M3: 1,113,756 km (0.095 R)
• M4: 1,796,670 km (0.071 R)
• M5: 2,284,210 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.1

Radius: 10.9

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.62 AU - 0.92 AU

Year: 451 Days

Day: 13.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,159,895 km

• M1: 143,016 km (0.114 R)
• M2: 535,261 km (0.058 R)
• M3: 978,968 km (0.111 R)
• M4: 1,389,166 km (0.114 R)
• M5: 1,755,082 km (0.041 R)
• M6: 2,273,289 km (0.108 R)
• M7: 2,687,227 km (0.1 R)
• M8: 3,321,671 km (0.046 R)
• M9: 3,705,988 km (0.105 R)
• M10: 4,187,544 km (0.06 R)
• M11: 5,437,284 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.8

Radius: 8.1

Gravity: 12.91 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.8 AU - 1.08 AU

Year: 608 Days

Day: 12.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 69,159,895 km

• M1: 100,679 km (0.114 R)
• M2: 409,300 km (0.11 R)
• M3: 864,975 km (0.063 R)
• M4: 1,154,447 km (0.088 R)
• M5: 1,516,773 km (0.063 R)
• M6: 2,092,126 km (0.114 R)
• M7: 2,679,896 km (0.061 R)
• M8: 3,043,419 km (0.119 R)
• M9: 3,615,781 km (0.074 R)
• M10: 4,105,564 km (0.078 R)
• M11: 4,606,268 km (0.1 R)
• M12: 5,094,555 km (0.065 R)
• M13: 5,729,449 km (0.107 R)
• M14: 6,294,480 km (0.105 R)
• M15: 6,663,538 km (0.098 R)
• M16: 7,222,136 km (0.08 R)
• M17: 7,626,799 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.5

Radius: 10.3

Gravity: 7.49 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.54 AU - 2.22 AU

Year: 1719 Days

Day: 5.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,159,895 km

• M1: 128,056 km (0.069 R)
• M2: 489,335 km (0.11 R)
• M3: 962,064 km (0.105 R)
• M4: 2,286,753 km (0.12 R)
• M5: 2,957,700 km (0.095 R)
• M6: 3,615,781 km (0.106 R)
• M7: 4,081,927 km (0.118 R)
• M8: 4,814,059 km (0.118 R)
• M9: 5,401,830 km (0.12 R)
• M10: 6,564,654 km (0.076 R)
• M11: 7,041,273 km (0.055 R)
• M12: 7,857,628 km (0.11 R)
• M13: 8,364,765 km (0.078 R)
• M14: 8,735,917 km (0.112 R)
• M15: 9,313,066 km (0.11 R)
• M16: 10,087,534 km (0.113 R)
• M17: 10,472,749 km (0.073 R)
• M18: 10,867,837 km (0.111 R)
• M19: 11,996,104 km (0.047 R)
• M20: 12,912,690 km (0.109 R)
• M21: 14,177,689 km (0.058 R)
• M22: 15,523,322 km (0.101 R)

Asteroid Belt

Center: 2.63 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.1

Radius: 11.9

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 2.88 AU - 3.86 AU

Year: 4125 Days

Day: 6.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,159,895 km

• M1: 149,299 km (0.067 R)
• M2: 530,025 km (0.114 R)
• M3: 934,388 km (0.056 R)
• M4: 1,379,143 km (0.111 R)
• M5: 1,808,339 km (0.1 R)
• M6: 2,296,627 km (0.12 R)
• M7: 3,400,659 km (0.045 R)
• M8: 4,151,939 km (0.089 R)
• M9: 4,728,938 km (0.104 R)
• M10: 7,941,403 km (0.112 R)
• M11: 9,625,277 km (0.086 R)
• M12: 11,306,906 km (0.106 R)
• M13: 12,193,573 km (0.111 R)
• M14: 12,629,501 km (0.118 R)
• M15: 13,176,431 km (0.077 R)
• M16: 16,036,443 km (0.113 R)
• M17: 20,079,625 km (0.103 R)
• M18: 22,661,235 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.3

Radius: 10.5

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 4.57 AU - 6.17 AU

Year: 8298 Days

Day: 10.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 69,159,895 km

• M1: 132,544 km (0.09 R)
• M2: 786,885 km (0.085 R)
• M3: 1,195,437 km (0.092 R)
• M4: 1,979,928 km (0.095 R)
• M5: 2,336,868 km (0.107 R)
• M6: 10,601,851 km (0.033 R)
• M7: 12,287,221 km (0.085 R)
• M8: 15,733,956 km (0.08 R)
• M9: 19,483,477 km (0.119 R)
• M10: 22,397,195 km (0.099 R)
• M11: 24,041,874 km (0.12 R)
• M12: 24,807,665 km (0.086 R)
• M13: 25,240,153 km (0.071 R)
• M14: 25,677,577 km (0.106 R)
• M15: 28,787,567 km (0.096 R)
• M16: 29,651,046 km (0.063 R)
• M17: 32,861,566 km (0.052 R)
• M18: 34,229,489 km (0.115 R)
• M19: 36,296,782 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 956.5

Radius: 6.4

Gravity: 23.35 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 6.87 AU - 8.83 AU

Year: 14667 Days

Day: 19.8 Hours

Environment

Temp: -241 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 69,159,895 km

• M1: 79,586 km (0.105 R)
• M2: 502,948 km (0.106 R)
• M3: 1,889,421 km (0.081 R)
• M4: 3,356,677 km (0.111 R)
• M5: 3,781,086 km (0.053 R)
• M6: 5,088,721 km (0.094 R)
• M7: 6,208,162 km (0.072 R)
• M8: 6,629,729 km (0.074 R)
• M9: 9,515,322 km (0.08 R)
• M10: 11,447,827 km (0.107 R)
• M11: 13,007,984 km (0.091 R)
• M12: 13,980,669 km (0.093 R)
• M13: 14,704,424 km (0.075 R)
• M14: 16,463,844 km (0.098 R)
• M15: 19,581,015 km (0.043 R)
• M16: 21,896,640 km (0.103 R)
• M17: 23,774,094 km (0.086 R)
• M18: 28,414,470 km (0.113 R)
• M19: 28,758,994 km (0.113 R)
• M20: 42,055,851 km (0.112 R)
• M21: 43,256,673 km (0.103 R)
• M22: 47,962,873 km (0.037 R)
• M23: 55,108,864 km (0.088 R)
• M24: 57,456,653 km (0.108 R)
• M25: 58,747,981 km (0.04 R)
• M26: 59,682,220 km (0.042 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 451 - 19,006 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit