🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.61 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936

Radius: 12.1

Gravity: 6.39 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.94 AU - 1.5 AU

Year: 899 Days

Day: 10.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,673,390 km

• M1: 150,495 km (0.062 R)
• M2: 625,170 km (0.12 R)
• M3: 1,065,137 km (0.076 R)
• M4: 1,900,791 km (0.107 R)
• M5: 2,585,799 km (0.097 R)
• M6: 3,286,366 km (0.068 R)
• M7: 3,759,095 km (0.09 R)
• M8: 5,557,262 km (0.114 R)
• M9: 6,231,499 km (0.113 R)
• M10: 6,634,217 km (0.092 R)
• M11: 7,126,244 km (0.116 R)
• M12: 7,567,109 km (0.105 R)
• M13: 8,396,330 km (0.106 R)
• M14: 9,342,537 km (0.117 R)
• M15: 10,296,821 km (0.066 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.6

Radius: 12.2

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.22 AU - 1.54 AU

Year: 1081 Days

Day: 9.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,673,390 km

• M1: 154,086 km (0.117 R)
• M2: 542,741 km (0.082 R)
• M3: 945,159 km (0.053 R)
• M4: 1,369,569 km (0.062 R)
• M5: 1,923,529 km (0.097 R)
• M6: 3,000,784 km (0.075 R)
• M7: 3,838,382 km (0.084 R)
• M8: 4,370,951 km (0.115 R)
• M9: 5,163,071 km (0.059 R)
• M10: 5,993,788 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.3

Radius: 13.9

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.33 AU - 1.63 AU

Year: 1201 Days

Day: 14.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,673,390 km

• M1: 172,935 km (0.107 R)
• M2: 612,154 km (0.049 R)
• M3: 1,061,247 km (0.089 R)
• M4: 1,518,568 km (0.116 R)
• M5: 2,187,869 km (0.032 R)
• M6: 3,006,618 km (0.098 R)
• M7: 3,818,486 km (0.098 R)
• M8: 4,268,027 km (0.093 R)
• M9: 4,753,024 km (0.102 R)
• M10: 5,379,539 km (0.099 R)
• M11: 6,222,224 km (0.065 R)
• M12: 7,703,542 km (0.096 R)
• M13: 8,340,680 km (0.109 R)
• M14: 9,816,163 km (0.104 R)
• M15: 10,767,756 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.5

Radius: 12.5

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.36 AU - 1.74 AU

Year: 1287 Days

Day: 7.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,673,390 km

• M1: 155,432 km (0.08 R)
• M2: 750,383 km (0.104 R)
• M3: 1,262,905 km (0.025 R)
• M4: 1,713,195 km (0.11 R)
• M5: 2,216,891 km (0.112 R)
• M6: 3,138,713 km (0.041 R)
• M7: 3,965,989 km (0.091 R)
• M8: 4,475,669 km (0.1 R)
• M9: 4,952,587 km (0.069 R)
• M10: 6,568,095 km (0.078 R)
• M11: 8,052,105 km (0.092 R)
• M12: 8,901,373 km (0.084 R)
• M13: 9,510,086 km (0.098 R)
• M14: 10,333,174 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 241.3

Radius: 12

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.48 AU - 2.18 AU

Year: 1651 Days

Day: 12.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,673,390 km

• M1: 149,299 km (0.086 R)
• M2: 602,131 km (0.115 R)
• M3: 992,731 km (0.081 R)
• M4: 1,411,606 km (0.11 R)
• M5: 1,883,886 km (0.085 R)
• M6: 2,695,305 km (0.115 R)
• M7: 3,475,607 km (0.042 R)
• M8: 4,200,409 km (0.091 R)
• M9: 4,590,560 km (0.099 R)
• M10: 5,173,992 km (0.113 R)
• M11: 6,162,834 km (0.079 R)
• M12: 7,083,609 km (0.087 R)
• M13: 7,639,066 km (0.031 R)
• M14: 8,354,443 km (0.12 R)
• M15: 9,568,130 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.9

Radius: 13.7

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.61 AU - 3.27 AU

Year: 3362 Days

Day: 12.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,673,390 km

• M1: 170,392 km (0.115 R)
• M2: 645,216 km (0.106 R)
• M3: 1,463,217 km (0.085 R)
• M4: 2,392,818 km (0.074 R)
• M5: 5,226,351 km (0.112 R)
• M6: 6,071,878 km (0.084 R)
• M7: 7,254,898 km (0.049 R)
• M8: 9,611,214 km (0.106 R)
• M9: 10,352,173 km (0.065 R)
• M10: 11,772,904 km (0.067 R)
• M11: 14,391,016 km (0.054 R)
• M12: 16,759,449 km (0.074 R)
• M13: 17,489,637 km (0.062 R)
• M14: 17,949,351 km (0.079 R)
• M15: 18,893,313 km (0.041 R)
• M16: 20,815,796 km (0.066 R)
• M17: 22,123,431 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 414.1

Radius: 6.4

Gravity: 10.11 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 6.31 AU - 10.09 AU

Year: 15659 Days

Day: 17 Hours

Environment

Temp: -235 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,673,390 km

• M1: 79,885 km (0.073 R)
• M2: 408,552 km (0.073 R)
• M3: 882,179 km (0.101 R)
• M4: 1,214,585 km (0.11 R)
• M5: 1,424,321 km (0.037 R)
• M6: 2,058,616 km (0.086 R)
• M7: 2,866,295 km (0.11 R)
• M8: 3,145,594 km (0.067 R)
• M9: 6,698,544 km (0.034 R)
• M10: 7,620,815 km (0.087 R)
• M11: 16,863,121 km (0.073 R)
• M12: 20,789,915 km (0.093 R)
• M13: 21,484,049 km (0.09 R)
• M14: 23,010,247 km (0.116 R)
• M15: 31,964,876 km (0.119 R)
• M16: 33,005,928 km (0.111 R)
• M17: 38,551,371 km (0.112 R)
• M18: 46,868,564 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 381

Radius: 5.4

Gravity: 13.07 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 7.15 AU - 9.25 AU

Year: 15659 Days

Day: 19.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 55,673,390 km

• M1: 68,366 km (0.12 R)
• M2: 361,578 km (0.116 R)
• M3: 551,867 km (0.106 R)
• M4: 730,038 km (0.077 R)
• M5: 1,000,211 km (0.102 R)
• M6: 1,443,919 km (0.04 R)
• M7: 2,135,360 km (0.069 R)
• M8: 2,382,496 km (0.083 R)
• M9: 3,240,589 km (0.036 R)
• M10: 4,713,829 km (0.091 R)
• M11: 4,969,641 km (0.11 R)
• M12: 7,793,151 km (0.057 R)
• M13: 8,060,483 km (0.025 R)
• M14: 9,642,181 km (0.113 R)
• M15: 11,193,511 km (0.049 R)
• M16: 12,236,059 km (0.073 R)
• M17: 14,180,532 km (0.109 R)
• M18: 14,646,380 km (0.094 R)
• M19: 14,917,301 km (0.043 R)
• M20: 21,060,687 km (0.069 R)
• M21: 22,284,996 km (0.042 R)
• M22: 23,927,880 km (0.07 R)
• M23: 26,641,137 km (0.089 R)
• M24: 27,452,556 km (0.088 R)
• M25: 30,532,028 km (0.038 R)
• M26: 33,132,188 km (0.101 R)
• M27: 45,727,282 km (0.103 R)
• M28: 50,339,683 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 158.8

Radius: 4.6

Gravity: 7.5 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 8.97 AU - 9.77 AU

Year: 19127 Days

Day: 15.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,673,390 km

• M1: 58,044 km (0.113 R)
• M2: 222,751 km (0.108 R)
• M3: 601,383 km (0.103 R)
• M4: 1,151,006 km (0.109 R)
• M5: 1,433,447 km (0.038 R)
• M6: 2,623,049 km (0.096 R)
• M7: 5,194,936 km (0.1 R)
• M8: 5,388,366 km (0.028 R)
• M9: 6,246,609 km (0.105 R)
• M10: 6,465,470 km (0.114 R)
• M11: 6,918,602 km (0.07 R)
• M12: 7,433,069 km (0.08 R)
• M13: 8,143,659 km (0.103 R)
• M14: 15,073,033 km (0.109 R)
• M15: 15,935,315 km (0.111 R)
• M16: 16,829,910 km (0.113 R)
• M17: 22,145,122 km (0.081 R)
• M18: 28,379,614 km (0.064 R)
• M19: 29,182,057 km (0.081 R)
• M20: 42,967,949 km (0.073 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 208.5

Radius: 4.6

Gravity: 9.85 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 9.2 AU - 11.8 AU

Year: 22689 Days

Day: 23.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 55,673,390 km

• M1: 57,146 km (0.066 R)
• M2: 230,231 km (0.095 R)
• M3: 432,637 km (0.11 R)
• M4: 826,079 km (0.066 R)
• M5: 1,023,549 km (0.1 R)
• M6: 1,188,854 km (0.06 R)
• M7: 1,635,254 km (0.105 R)
• M8: 1,862,643 km (0.109 R)
• M9: 2,874,373 km (0.071 R)
• M10: 6,169,566 km (0.077 R)
• M11: 6,362,996 km (0.079 R)
• M12: 7,653,876 km (0.093 R)
• M13: 8,717,816 km (0.066 R)
• M14: 9,411,651 km (0.081 R)
• M15: 10,248,950 km (0.088 R)
• M16: 10,852,578 km (0.101 R)
• M17: 11,831,696 km (0.108 R)
• M18: 12,805,578 km (0.054 R)
• M19: 20,643,309 km (0.113 R)
• M20: 23,239,880 km (0.117 R)
• M21: 27,374,166 km (0.119 R)
• M22: 31,743,023 km (0.103 R)
• M23: 33,852,053 km (0.076 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 257 - 12,173 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit