🌌 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 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.58 AU - 0.64 AU

Year: 308 Days

Day: 22.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 34.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.4

Radius: 13.6

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.96 AU - 1.24 AU

Year: 745 Days

Day: 6.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,203,612 km

• M1: 169,195 km (0.105 R)
• M2: 703,260 km (0.078 R)
• M3: 1,281,306 km (0.107 R)
• M4: 1,836,763 km (0.115 R)
• M5: 2,574,131 km (0.094 R)
• M6: 3,270,957 km (0.096 R)
• M7: 3,907,496 km (0.101 R)
• M8: 4,360,628 km (0.069 R)
• M9: 4,796,856 km (0.053 R)
• M10: 6,603,100 km (0.071 R)
• M11: 7,135,220 km (0.104 R)
• M12: 7,696,062 km (0.04 R)
• M13: 8,135,880 km (0.112 R)
• M14: 9,012,673 km (0.078 R)

Asteroid Belt

Center: 1.69 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.6

Radius: 8.8

Gravity: 12.29 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.1 AU - 2.44 AU

Year: 2208 Days

Day: 5.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,203,612 km

• M1: 109,506 km (0.119 R)
• M2: 443,109 km (0.095 R)
• M3: 734,226 km (0.101 R)
• M4: 1,077,853 km (0.075 R)
• M5: 1,381,237 km (0.095 R)
• M6: 1,821,653 km (0.07 R)
• M7: 2,298,870 km (0.066 R)
• M8: 3,688,934 km (0.088 R)
• M9: 4,455,025 km (0.08 R)
• M10: 6,437,196 km (0.071 R)
• M11: 6,802,664 km (0.101 R)
• M12: 7,699,354 km (0.07 R)
• M13: 7,983,141 km (0.092 R)
• M14: 9,119,037 km (0.1 R)
• M15: 9,401,329 km (0.078 R)
• M16: 10,705,672 km (0.12 R)
• M17: 11,832,892 km (0.086 R)
• M18: 12,904,462 km (0.063 R)
• M19: 15,043,263 km (0.031 R)
• M20: 16,299,735 km (0.091 R)
• M21: 19,540,025 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.1

Radius: 8.2

Gravity: 12.27 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 2.47 AU - 3.11 AU

Year: 3009 Days

Day: 13.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,203,612 km

• M1: 102,026 km (0.087 R)
• M2: 409,300 km (0.098 R)
• M3: 1,054,515 km (0.04 R)
• M4: 2,151,965 km (0.082 R)
• M5: 4,301,986 km (0.09 R)
• M6: 5,431,151 km (0.111 R)
• M7: 7,020,628 km (0.066 R)
• M8: 7,591,643 km (0.053 R)
• M9: 9,117,691 km (0.062 R)
• M10: 9,914,000 km (0.108 R)
• M11: 15,270,951 km (0.052 R)
• M12: 20,021,880 km (0.079 R)
• M13: 22,628,473 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.8

Radius: 9.4

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.7 AU - 3.2 AU

Year: 3272 Days

Day: 13.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,203,612 km

• M1: 116,836 km (0.101 R)
• M2: 584,180 km (0.097 R)
• M3: 910,004 km (0.118 R)
• M4: 1,341,145 km (0.11 R)
• M5: 1,660,387 km (0.111 R)
• M6: 1,967,511 km (0.054 R)
• M7: 2,341,057 km (0.116 R)
• M8: 2,923,890 km (0.081 R)
• M9: 3,600,821 km (0.113 R)
• M10: 5,515,823 km (0.034 R)
• M11: 6,126,033 km (0.073 R)
• M12: 6,958,695 km (0.058 R)
• M13: 10,731,852 km (0.041 R)
• M14: 11,725,032 km (0.116 R)
• M15: 12,156,622 km (0.059 R)
• M16: 13,097,144 km (0.096 R)
• M17: 14,721,926 km (0.025 R)
• M18: 16,423,453 km (0.085 R)
• M19: 17,073,455 km (0.078 R)
• M20: 18,715,142 km (0.114 R)
• M21: 20,833,448 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.5

Radius: 11.4

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.94 AU - 5.74 AU

Year: 6875 Days

Day: 12.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,203,612 km

• M1: 143,016 km (0.104 R)
• M2: 560,842 km (0.087 R)
• M3: 2,482,876 km (0.105 R)
• M4: 3,436,263 km (0.114 R)
• M5: 4,182,756 km (0.074 R)
• M6: 4,690,192 km (0.069 R)
• M7: 6,026,251 km (0.114 R)
• M8: 11,023,119 km (0.059 R)
• M9: 13,557,157 km (0.107 R)
• M10: 16,177,364 km (0.081 R)
• M11: 16,967,690 km (0.104 R)
• M12: 17,783,596 km (0.11 R)
• M13: 18,809,239 km (0.092 R)
• M14: 19,367,988 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 381.1

Radius: 4.1

Gravity: 22.67 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 5.05 AU - 7.57 AU

Year: 10234 Days

Day: 15.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 63,203,612 km

• M1: 57,595 km (0.079 R)
• M2: 292,015 km (0.047 R)
• M3: 421,268 km (0.088 R)
• M4: 660,923 km (0.058 R)
• M5: 820,694 km (0.097 R)
• M6: 4,309,316 km (0.089 R)
• M7: 6,488,209 km (0.099 R)
• M8: 6,776,484 km (0.12 R)
• M9: 7,262,827 km (0.108 R)
• M10: 8,346,963 km (0.075 R)
• M11: 11,704,089 km (0.06 R)
• M12: 16,385,754 km (0.117 R)
• M13: 17,396,587 km (0.119 R)
• M14: 19,915,516 km (0.065 R)
• M15: 24,434,119 km (0.043 R)
• M16: 35,649,173 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 604.8

Radius: 5.1

Gravity: 23.25 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 8.45 AU - 8.63 AU

Year: 16114 Days

Day: 20.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 63,203,612 km

• M1: 63,729 km (0.085 R)
• M2: 384,766 km (0.106 R)
• M3: 690,993 km (0.09 R)
• M4: 862,133 km (0.095 R)
• M5: 1,464,414 km (0.116 R)
• M6: 1,837,361 km (0.113 R)
• M7: 2,545,109 km (0.084 R)
• M8: 2,770,553 km (0.068 R)
• M9: 3,500,740 km (0.114 R)
• M10: 3,694,768 km (0.102 R)
• M11: 4,196,071 km (0.101 R)
• M12: 4,447,096 km (0.118 R)
• M13: 5,932,902 km (0.117 R)
• M14: 6,494,044 km (0.037 R)
• M15: 6,745,218 km (0.059 R)
• M16: 7,721,494 km (0.113 R)
• M17: 10,116,556 km (0.079 R)
• M18: 11,512,155 km (0.068 R)
• M19: 13,907,366 km (0.092 R)
• M20: 15,184,483 km (0.113 R)
• M21: 15,404,691 km (0.089 R)
• M22: 17,164,261 km (0.032 R)
• M23: 17,887,866 km (0.069 R)
• M24: 29,682,312 km (0.079 R)
• M25: 31,075,966 km (0.112 R)
• M26: 34,244,000 km (0.071 R)
• M27: 34,622,782 km (0.106 R)
• M28: 36,690,673 km (0.113 R)
• M29: 41,070,599 km (0.109 R)
• M30: 41,355,284 km (0.063 R)
• M31: 49,712,420 km (0.096 R)
• M32: 49,873,985 km (0.094 R)
• M33: 53,857,029 km (0.106 R)
• M34: 54,198,261 km (0.069 R)
• M35: 57,156,709 km (0.119 R)
• M36: 58,226,034 km (0.069 R)
• M37: 62,825,571 km (0.114 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: 528 - 16,694 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit