🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.45 AU - 0.65 AU

Year: 268 Days

Day: 12.6 Hours

Environment

Temp: -118 °C

Axial Tilt: 48 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.6

Radius: 12.4

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.85 AU - 0.89 AU

Year: 532 Days

Day: 14.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,642,865 km

• M1: 155,133 km (0.12 R)
• M2: 1,738,477 km (0.1 R)
• M3: 3,083,811 km (0.114 R)
• M4: 3,557,587 km (0.072 R)
• M5: 4,094,045 km (0.104 R)
• M6: 5,130,459 km (0.06 R)
• M7: 6,391,419 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 593.7

Radius: 11

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.18 AU - 1.24 AU

Year: 873 Days

Day: 14.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,642,865 km

• M1: 136,732 km (0.034 R)
• M2: 536,458 km (0.057 R)
• M3: 912,098 km (0.068 R)
• M4: 1,547,141 km (0.118 R)
• M5: 2,187,121 km (0.062 R)
• M6: 2,614,522 km (0.107 R)
• M7: 2,959,046 km (0.104 R)
• M8: 4,587,568 km (0.102 R)
• M9: 5,293,670 km (0.05 R)
• M10: 6,010,094 km (0.12 R)
• M11: 6,967,072 km (0.108 R)
• M12: 7,924,798 km (0.111 R)
• M13: 8,968,093 km (0.025 R)

Asteroid Belt

Center: 2.74 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.6

Radius: 9.5

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 3.92 AU - 4.6 AU

Year: 5768 Days

Day: 8.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,642,865 km

• M1: 118,930 km (0.119 R)
• M2: 501,901 km (0.054 R)
• M3: 911,350 km (0.074 R)
• M4: 1,227,600 km (0.102 R)
• M5: 1,907,373 km (0.047 R)
• M6: 2,202,829 km (0.08 R)
• M7: 3,412,627 km (0.086 R)
• M8: 3,999,798 km (0.09 R)
• M9: 6,463,226 km (0.107 R)
• M10: 6,825,702 km (0.08 R)
• M11: 7,893,083 km (0.117 R)
• M12: 8,664,260 km (0.118 R)
• M13: 9,256,069 km (0.065 R)
• M14: 11,108,091 km (0.119 R)
• M15: 11,497,344 km (0.12 R)
• M16: 13,680,875 km (0.101 R)
• M17: 14,178,886 km (0.057 R)
• M18: 17,832,964 km (0.11 R)
• M19: 18,307,339 km (0.066 R)
• M20: 21,200,861 km (0.106 R)
• M21: 22,070,922 km (0.103 R)
• M22: 23,810,446 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757.4

Radius: 14.5

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 4.92 AU - 6.52 AU

Year: 8974 Days

Day: 5.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 53,642,865 km

• M1: 180,265 km (0.107 R)
• M2: 1,548,787 km (0.045 R)
• M3: 3,463,490 km (0.088 R)
• M4: 4,564,530 km (0.112 R)
• M5: 6,941,940 km (0.106 R)
• M6: 7,616,327 km (0.053 R)
• M7: 8,247,331 km (0.069 R)
• M8: 10,453,600 km (0.071 R)
• M9: 13,326,627 km (0.04 R)
• M10: 15,468,121 km (0.088 R)
• M11: 22,828,186 km (0.084 R)
• M12: 24,955,618 km (0.103 R)
• M13: 25,600,235 km (0.049 R)
• M14: 28,191,569 km (0.099 R)
• M15: 28,991,918 km (0.09 R)
• M16: 33,222,546 km (0.034 R)
• M17: 37,247,925 km (0.072 R)
• M18: 39,439,833 km (0.115 R)
• M19: 42,104,171 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 791.4

Radius: 5

Gravity: 31.66 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.37 AU - 7.03 AU

Year: 10127 Days

Day: 18.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 126.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 53,642,865 km

• M1: 62,233 km (0.109 R)
• M2: 223,050 km (0.062 R)
• M3: 678,576 km (0.103 R)
• M4: 863,329 km (0.057 R)
• M5: 1,174,343 km (0.084 R)
• M6: 1,513,781 km (0.074 R)
• M7: 1,769,294 km (0.093 R)
• M8: 2,347,939 km (0.091 R)
• M9: 3,683,100 km (0.107 R)
• M10: 3,842,421 km (0.112 R)
• M11: 5,595,110 km (0.102 R)
• M12: 6,782,319 km (0.101 R)
• M13: 7,022,274 km (0.118 R)
• M14: 7,863,313 km (0.084 R)
• M15: 12,850,607 km (0.05 R)
• M16: 15,991,414 km (0.091 R)
• M17: 16,560,185 km (0.048 R)
• M18: 17,438,624 km (0.116 R)
• M19: 19,208,367 km (0.072 R)
• M20: 20,925,601 km (0.117 R)
• M21: 21,605,972 km (0.076 R)
• M22: 23,461,584 km (0.065 R)
• M23: 25,613,100 km (0.118 R)
• M24: 28,096,874 km (0.052 R)
• M25: 33,884,367 km (0.086 R)
• M26: 34,821,597 km (0.03 R)
• M27: 36,381,454 km (0.083 R)
• M28: 38,490,485 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 133.3

Radius: 3

Gravity: 14.81 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 6.43 AU - 9.45 AU

Year: 14677 Days

Day: 21.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,642,865 km

• M1: 38,447 km (0.083 R)
• M2: 551,567 km (0.081 R)
• M3: 1,586,934 km (0.084 R)
• M4: 3,089,944 km (0.109 R)
• M5: 3,757,899 km (0.116 R)
• M6: 4,818,996 km (0.09 R)
• M7: 8,998,013 km (0.086 R)
• M8: 10,153,806 km (0.081 R)
• M9: 11,861,017 km (0.106 R)
• M10: 15,644,646 km (0.098 R)
• M11: 21,890,208 km (0.089 R)
• M12: 24,625,605 km (0.101 R)
• M13: 27,942,489 km (0.052 R)
• M14: 29,992,578 km (0.1 R)
• M15: 33,457,265 km (0.098 R)
• M16: 34,914,647 km (0.119 R)
• M17: 35,232,243 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 290.8

Radius: 6.7

Gravity: 6.48 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 9.01 AU - 11.47 AU

Year: 21496 Days

Day: 25 Hours

Environment

Temp: -222 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 53,642,865 km

• M1: 93,349 km (0.115 R)
• M2: 367,412 km (0.109 R)
• M3: 704,157 km (0.092 R)
• M4: 1,076,805 km (0.11 R)
• M5: 1,817,016 km (0.088 R)
• M6: 2,256,235 km (0.077 R)
• M7: 3,529,463 km (0.113 R)
• M8: 3,776,149 km (0.106 R)
• M9: 4,914,140 km (0.111 R)
• M10: 5,727,504 km (0.105 R)
• M11: 6,146,827 km (0.091 R)
• M12: 7,394,922 km (0.06 R)
• M13: 7,708,928 km (0.106 R)
• M14: 10,662,738 km (0.116 R)
• M15: 11,297,332 km (0.119 R)
• M16: 14,994,943 km (0.075 R)
• M17: 16,844,421 km (0.096 R)
• M18: 19,682,143 km (0.11 R)
• M19: 21,079,387 km (0.069 R)
• M20: 24,660,760 km (0.103 R)
• M21: 26,699,480 km (0.093 R)
• M22: 27,438,643 km (0.077 R)
• M23: 29,179,663 km (0.063 R)
• M24: 29,514,164 km (0.081 R)
• M25: 32,163,692 km (0.089 R)
• M26: 35,345,040 km (0.11 R)
• M27: 37,534,854 km (0.072 R)
• M28: 37,930,391 km (0.095 R)
• M29: 39,269,291 km (0.101 R)
• M30: 40,224,923 km (0.114 R)
• M31: 43,619,448 km (0.052 R)
• M32: 45,386,199 km (0.106 R)
• M33: 47,815,369 km (0.075 R)
• M34: 49,693,121 km (0.101 R)
• M35: 55,109,462 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 177.6

Radius: 6.7

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 9.7 AU - 11.88 AU

Year: 23251 Days

Day: 20 Hours

Environment

Temp: -226 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 53,642,865 km

• M1: 123,717 km (0.06 R)
• M2: 615,595 km (0.075 R)
• M3: 1,125,874 km (0.071 R)
• M4: 2,520,275 km (0.063 R)
• M5: 4,108,406 km (0.084 R)
• M6: 5,128,365 km (0.094 R)
• M7: 6,540,120 km (0.101 R)
• M8: 6,778,280 km (0.087 R)
• M9: 9,239,464 km (0.1 R)
• M10: 9,641,284 km (0.116 R)
• M11: 16,048,261 km (0.09 R)
• M12: 20,748,177 km (0.107 R)
• M13: 22,051,923 km (0.107 R)
• M14: 24,155,867 km (0.068 R)
• M15: 25,207,989 km (0.036 R)
• M16: 28,864,460 km (0.084 R)
• M17: 29,506,385 km (0.12 R)
• M18: 40,046,452 km (0.112 R)
• M19: 43,442,922 km (0.088 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: 363 - 13,185 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit