🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837

Radius: 9

Gravity: 10.33 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.8 AU - 1.18 AU

Year: 657 Days

Day: 12.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,654,023 km

• M1: 111,899 km (0.069 R)
• M2: 394,490 km (0.107 R)
• M3: 827,426 km (0.08 R)
• M4: 1,541,905 km (0.108 R)
• M5: 1,845,739 km (0.046 R)
• M6: 2,330,735 km (0.037 R)
• M7: 3,070,197 km (0.088 R)
• M8: 3,724,987 km (0.049 R)
• M9: 4,047,969 km (0.037 R)
• M10: 5,292,473 km (0.094 R)
• M11: 6,132,017 km (0.106 R)
• M12: 6,520,971 km (0.055 R)
• M13: 7,213,310 km (0.092 R)
• M14: 8,170,886 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.3

Radius: 12.5

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.97 AU - 3.17 AU

Year: 2747 Days

Day: 7.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,654,023 km

• M1: 155,432 km (0.11 R)
• M2: 640,728 km (0.055 R)
• M3: 1,178,831 km (0.113 R)
• M4: 2,194,900 km (0.079 R)
• M5: 3,142,902 km (0.098 R)
• M6: 3,758,796 km (0.092 R)
• M7: 4,347,015 km (0.075 R)
• M8: 4,823,185 km (0.067 R)
• M9: 5,457,181 km (0.113 R)
• M10: 6,123,639 km (0.07 R)
• M11: 6,652,617 km (0.064 R)
• M12: 8,508,828 km (0.069 R)
• M13: 9,139,383 km (0.115 R)
• M14: 9,770,237 km (0.112 R)
• M15: 10,591,230 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.1

Radius: 12.7

Gravity: 5.94 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 2.69 AU - 2.95 AU

Year: 3158 Days

Day: 10.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 45,654,023 km

• M1: 158,424 km (0.094 R)
• M2: 587,022 km (0.087 R)
• M3: 1,029,533 km (0.088 R)
• M4: 1,450,052 km (0.118 R)
• M5: 3,117,620 km (0.091 R)
• M6: 3,551,453 km (0.07 R)
• M7: 4,426,451 km (0.098 R)
• M8: 5,002,254 km (0.106 R)
• M9: 6,816,876 km (0.118 R)
• M10: 8,450,036 km (0.106 R)
• M11: 9,262,651 km (0.097 R)
• M12: 12,336,289 km (0.068 R)
• M13: 12,804,680 km (0.106 R)
• M14: 18,649,170 km (0.074 R)
• M15: 19,392,073 km (0.068 R)
• M16: 19,898,162 km (0.071 R)
• M17: 21,002,943 km (0.086 R)
• M18: 22,148,264 km (0.053 R)
• M19: 23,263,965 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.2

Radius: 9.1

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.89 AU - 4.61 AU

Year: 4843 Days

Day: 5.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,654,023 km

• M1: 113,096 km (0.119 R)
• M2: 423,212 km (0.076 R)
• M3: 742,005 km (0.115 R)
• M4: 1,325,288 km (0.095 R)
• M5: 2,282,415 km (0.1 R)
• M6: 3,353,685 km (0.108 R)
• M7: 3,662,904 km (0.101 R)
• M8: 4,132,192 km (0.098 R)
• M9: 6,366,736 km (0.12 R)
• M10: 6,700,788 km (0.102 R)
• M11: 7,313,391 km (0.084 R)
• M12: 7,836,236 km (0.104 R)
• M13: 8,252,716 km (0.113 R)
• M14: 10,218,432 km (0.111 R)
• M15: 11,472,062 km (0.109 R)
• M16: 12,737,660 km (0.073 R)
• M17: 13,269,182 km (0.075 R)
• M18: 14,710,707 km (0.11 R)
• M19: 15,694,612 km (0.12 R)
• M20: 16,460,703 km (0.079 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 74.4

Radius: 6.1

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 5.43 AU - 6.77 AU

Year: 10047 Days

Day: 20.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 45,654,023 km

• M1: 77,641 km (0.077 R)
• M2: 395,986 km (0.103 R)
• M3: 599,588 km (0.094 R)
• M4: 2,118,007 km (0.052 R)
• M5: 2,434,705 km (0.085 R)
• M6: 2,652,221 km (0.034 R)
• M7: 3,108,943 km (0.092 R)
• M8: 3,460,648 km (0.092 R)
• M9: 6,041,809 km (0.108 R)
• M10: 7,202,090 km (0.054 R)
• M11: 8,328,861 km (0.113 R)
• M12: 8,861,579 km (0.117 R)
• M13: 9,080,890 km (0.112 R)
• M14: 13,008,582 km (0.09 R)
• M15: 14,316,965 km (0.099 R)
• M16: 14,977,290 km (0.09 R)
• M17: 17,649,407 km (0.041 R)
• M18: 18,825,845 km (0.084 R)
• M19: 21,927,308 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 258.8

Radius: 7.5

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 5.28 AU - 7.76 AU

Year: 11102 Days

Day: 16.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 45,654,023 km

• M1: 93,499 km (0.081 R)
• M2: 331,808 km (0.03 R)
• M3: 707,748 km (0.113 R)
• M4: 1,615,059 km (0.106 R)
• M5: 2,918,206 km (0.038 R)
• M6: 3,447,932 km (0.092 R)
• M7: 4,560,940 km (0.053 R)
• M8: 5,486,652 km (0.11 R)
• M9: 6,292,685 km (0.043 R)
• M10: 9,717,429 km (0.057 R)
• M11: 10,130,469 km (0.057 R)
• M12: 12,750,376 km (0.094 R)
• M13: 13,983,362 km (0.107 R)
• M14: 14,274,330 km (0.036 R)
• M15: 16,233,463 km (0.106 R)
• M16: 16,749,875 km (0.086 R)
• M17: 17,012,120 km (0.115 R)
• M18: 18,088,926 km (0.085 R)
• M19: 23,013,538 km (0.107 R)
• M20: 25,176,574 km (0.113 R)
• M21: 26,930,010 km (0.11 R)
• M22: 36,930,927 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 266.9

Radius: 6.2

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 6.42 AU - 9.44 AU

Year: 14892 Days

Day: 24.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 45,654,023 km

• M1: 77,043 km (0.033 R)
• M2: 384,766 km (0.054 R)
• M3: 739,163 km (0.106 R)
• M4: 1,271,133 km (0.119 R)
• M5: 1,821,504 km (0.091 R)
• M6: 2,801,519 km (0.115 R)
• M7: 3,502,236 km (0.109 R)
• M8: 4,313,954 km (0.076 R)
• M9: 4,900,228 km (0.114 R)
• M10: 5,406,467 km (0.086 R)
• M11: 6,266,356 km (0.09 R)
• M12: 6,709,913 km (0.08 R)
• M13: 7,495,751 km (0.038 R)
• M14: 8,429,092 km (0.115 R)
• M15: 8,832,408 km (0.081 R)
• M16: 13,061,540 km (0.071 R)
• M17: 13,359,838 km (0.117 R)
• M18: 17,661,973 km (0.105 R)
• M19: 18,771,541 km (0.084 R)
• M20: 19,381,900 km (0.086 R)
• M21: 23,412,516 km (0.077 R)
• M22: 23,852,782 km (0.047 R)
• M23: 24,840,726 km (0.118 R)
• M24: 25,483,548 km (0.091 R)
• M25: 26,231,687 km (0.109 R)
• M26: 27,673,661 km (0.072 R)
• M27: 32,533,498 km (0.104 R)
• M28: 39,649,270 km (0.103 R)
• M29: 40,653,221 km (0.119 R)
• M30: 44,703,584 km (0.038 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 494 - 11,130 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit