🌌 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: 582.2

Radius: 12.6

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.54 AU - 0.68 AU

Year: 318 Days

Day: 7 Hours

Environment

Temp: -150 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,588,003 km

• M1: 157,975 km (0.046 R)
• M2: 584,778 km (0.104 R)
• M3: 1,392,607 km (0.092 R)
• M4: 1,805,048 km (0.105 R)
• M5: 2,300,366 km (0.116 R)
• M6: 3,570,153 km (0.109 R)
• M7: 4,084,171 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.7

Radius: 12.5

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.73 AU - 0.89 AU

Year: 486 Days

Day: 13.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,588,003 km

• M1: 155,432 km (0.081 R)
• M2: 560,693 km (0.117 R)
• M3: 1,278,015 km (0.062 R)
• M4: 1,704,069 km (0.105 R)
• M5: 2,351,828 km (0.105 R)
• M6: 2,914,915 km (0.119 R)
• M7: 3,329,600 km (0.046 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.4

Radius: 13

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.78 AU - 1.12 AU

Year: 617 Days

Day: 13.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 74,588,003 km

• M1: 161,715 km (0.107 R)
• M2: 578,046 km (0.111 R)
• M3: 1,112,410 km (0.083 R)
• M4: 1,544,000 km (0.03 R)
• M5: 2,384,740 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.2

Radius: 10.4

Gravity: 6.9 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.97 AU - 1.17 AU

Year: 738 Days

Day: 9.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,588,003 km

• M1: 129,402 km (0.064 R)
• M2: 605,871 km (0.097 R)
• M3: 961,466 km (0.043 R)
• M4: 1,338,303 km (0.119 R)
• M5: 1,763,011 km (0.052 R)
• M6: 2,307,846 km (0.075 R)
• M7: 2,925,536 km (0.058 R)
• M8: 3,427,736 km (0.069 R)
• M9: 4,312,308 km (0.08 R)
• M10: 5,662,279 km (0.054 R)
• M11: 5,994,835 km (0.069 R)
• M12: 6,721,283 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.3

Radius: 13.6

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 2.3 AU - 2.68 AU

Year: 2620 Days

Day: 5.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,588,003 km

• M1: 169,195 km (0.09 R)
• M2: 624,122 km (0.089 R)
• M3: 1,170,304 km (0.1 R)
• M4: 1,630,766 km (0.066 R)
• M5: 3,532,006 km (0.073 R)
• M6: 4,390,698 km (0.084 R)
• M7: 4,850,113 km (0.115 R)
• M8: 6,377,956 km (0.104 R)
• M9: 6,818,372 km (0.114 R)
• M10: 8,847,816 km (0.106 R)
• M11: 9,396,990 km (0.071 R)
• M12: 10,197,638 km (0.109 R)
• M13: 11,112,878 km (0.105 R)
• M14: 12,305,023 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.6

Radius: 14.3

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 3.67 AU - 4.23 AU

Year: 5235 Days

Day: 10.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,588,003 km

• M1: 178,021 km (0.066 R)
• M2: 635,941 km (0.083 R)
• M3: 1,164,021 km (0.111 R)
• M4: 1,796,970 km (0.111 R)
• M5: 2,515,339 km (0.104 R)
• M6: 3,751,017 km (0.034 R)
• M7: 6,319,463 km (0.111 R)
• M8: 7,427,385 km (0.117 R)
• M9: 8,105,512 km (0.112 R)
• M10: 8,865,768 km (0.079 R)
• M11: 11,434,812 km (0.098 R)
• M12: 14,523,560 km (0.085 R)
• M13: 20,070,649 km (0.097 R)
• M14: 21,388,307 km (0.114 R)
• M15: 23,234,045 km (0.079 R)
• M16: 27,682,488 km (0.111 R)
• M17: 28,219,544 km (0.099 R)
• M18: 30,437,183 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 66.2

Radius: 6.4

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 6.95 AU - 7.95 AU

Year: 13560 Days

Day: 21.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,588,003 km

• M1: 82,279 km (0.095 R)
• M2: 350,358 km (0.049 R)
• M3: 1,364,781 km (0.085 R)
• M4: 15,166,831 km (0.118 R)
• M5: 18,703,773 km (0.101 R)
• M6: 21,207,293 km (0.062 R)
• M7: 21,971,738 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 826.1

Radius: 6.4

Gravity: 20.17 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 8.09 AU - 9.69 AU

Year: 17676 Days

Day: 18.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 74,588,003 km

• M1: 79,586 km (0.109 R)
• M2: 1,148,762 km (0.095 R)
• M3: 1,481,917 km (0.111 R)
• M4: 2,475,546 km (0.084 R)
• M5: 2,806,157 km (0.103 R)
• M6: 3,246,872 km (0.059 R)
• M7: 4,265,634 km (0.086 R)
• M8: 5,328,377 km (0.097 R)
• M9: 8,475,168 km (0.057 R)
• M10: 9,732,538 km (0.074 R)
• M11: 10,316,120 km (0.118 R)
• M12: 11,425,238 km (0.103 R)
• M13: 15,774,347 km (0.066 R)
• M14: 16,579,184 km (0.081 R)
• M15: 17,665,713 km (0.071 R)
• M16: 19,703,236 km (0.069 R)
• M17: 23,301,364 km (0.112 R)
• M18: 26,972,945 km (0.114 R)
• M19: 27,889,681 km (0.115 R)
• M20: 28,355,828 km (0.09 R)
• M21: 32,018,432 km (0.102 R)
• M22: 32,273,347 km (0.096 R)
• M23: 33,045,870 km (0.032 R)
• M24: 34,628,018 km (0.045 R)
• M25: 36,954,863 km (0.109 R)
• M26: 42,222,204 km (0.105 R)
• M27: 45,675,820 km (0.076 R)
• M28: 46,812,914 km (0.096 R)
• M29: 51,725,409 km (0.09 R)
• M30: 55,857,601 km (0.086 R)
• M31: 56,784,061 km (0.094 R)
• M32: 60,982,824 km (0.091 R)
• M33: 64,975,142 km (0.05 R)
• M34: 68,081,393 km (0.085 R)
• M35: 72,156,139 km (0.166 R)
• M36: 74,364,653 km (0.213 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 422 - 13,017 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit