🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 672.4

Radius: 14.5

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.74 AU - 1.18 AU

Year: 627 Days

Day: 8.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,116,898 km

• M1: 180,265 km (0.084 R)
• M2: 728,093 km (0.065 R)
• M3: 1,188,705 km (0.038 R)
• M4: 2,233,496 km (0.063 R)
• M5: 3,178,805 km (0.092 R)
• M6: 3,717,357 km (0.102 R)
• M7: 4,212,526 km (0.095 R)
• M8: 4,832,759 km (0.108 R)
• M9: 5,748,149 km (0.045 R)
• M10: 6,837,969 km (0.047 R)
• M11: 7,323,863 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.3

Radius: 8.1

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.95 AU - 1.57 AU

Year: 943 Days

Day: 8.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,116,898 km

• M1: 100,979 km (0.073 R)
• M2: 568,622 km (0.066 R)
• M3: 904,469 km (0.069 R)
• M4: 1,159,683 km (0.098 R)
• M5: 1,525,449 km (0.088 R)
• M6: 1,933,852 km (0.101 R)
• M7: 2,272,990 km (0.041 R)
• M8: 2,703,084 km (0.111 R)
• M9: 2,970,864 km (0.071 R)
• M10: 3,610,993 km (0.12 R)
• M11: 4,072,952 km (0.112 R)
• M12: 4,383,068 km (0.094 R)
• M13: 4,693,783 km (0.037 R)
• M14: 5,019,158 km (0.026 R)
• M15: 5,697,884 km (0.03 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.4

Radius: 11.6

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.14 AU - 1.66 AU

Year: 1105 Days

Day: 11.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,116,898 km

• M1: 144,661 km (0.069 R)
• M2: 553,363 km (0.066 R)
• M3: 918,980 km (0.108 R)
• M4: 2,294,532 km (0.109 R)
• M5: 2,683,487 km (0.106 R)
• M6: 3,214,709 km (0.053 R)
• M7: 3,642,858 km (0.059 R)
• M8: 4,400,870 km (0.072 R)
• M9: 5,544,097 km (0.093 R)
• M10: 5,944,720 km (0.105 R)
• M11: 6,593,676 km (0.069 R)
• M12: 7,165,888 km (0.095 R)
• M13: 7,540,181 km (0.109 R)
• M14: 8,006,628 km (0.104 R)
• M15: 9,083,583 km (0.045 R)
• M16: 10,068,236 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 968.1

Radius: 15

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.38 AU - 1.8 AU

Year: 1337 Days

Day: 8.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,116,898 km

• M1: 186,848 km (0.063 R)
• M2: 741,706 km (0.081 R)
• M3: 1,251,835 km (0.032 R)
• M4: 1,789,490 km (0.116 R)
• M5: 2,311,736 km (0.105 R)
• M6: 2,852,532 km (0.093 R)
• M7: 3,656,770 km (0.111 R)
• M8: 4,845,475 km (0.12 R)
• M9: 5,652,107 km (0.113 R)
• M10: 6,621,651 km (0.077 R)
• M11: 7,318,777 km (0.116 R)
• M12: 9,388,463 km (0.099 R)
• M13: 10,644,636 km (0.08 R)
• M14: 11,494,053 km (0.11 R)
• M15: 12,122,813 km (0.05 R)
• M16: 13,128,859 km (0.025 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.8

Radius: 8

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 4.66 AU - 4.68 AU

Year: 6730 Days

Day: 5 Hours

Environment

Temp: -224 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,116,898 km

• M1: 100,530 km (0.111 R)
• M2: 565,630 km (0.064 R)
• M3: 815,009 km (0.119 R)
• M4: 1,148,762 km (0.085 R)
• M5: 1,624,782 km (0.12 R)
• M6: 3,132,280 km (0.114 R)
• M7: 4,182,607 km (0.066 R)
• M8: 6,455,447 km (0.085 R)
• M9: 11,640,958 km (0.077 R)
• M10: 13,880,139 km (0.12 R)
• M11: 15,101,007 km (0.063 R)
• M12: 16,803,282 km (0.077 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 716.6

Radius: 7.2

Gravity: 13.82 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 5.09 AU - 7.79 AU

Year: 10898 Days

Day: 24.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 49,116,898 km

• M1: 90,507 km (0.099 R)
• M2: 337,792 km (0.117 R)
• M3: 579,692 km (0.066 R)
• M4: 962,662 km (0.049 R)
• M5: 1,506,451 km (0.11 R)
• M6: 1,775,128 km (0.099 R)
• M7: 2,333,128 km (0.115 R)
• M8: 2,695,155 km (0.119 R)
• M9: 3,140,957 km (0.1 R)
• M10: 4,094,494 km (0.085 R)
• M11: 4,531,619 km (0.073 R)
• M12: 6,328,738 km (0.096 R)
• M13: 7,747,973 km (0.072 R)
• M14: 8,055,397 km (0.079 R)
• M15: 8,508,828 km (0.069 R)
• M16: 9,516,220 km (0.034 R)
• M17: 11,765,723 km (0.115 R)
• M18: 12,588,212 km (0.117 R)
• M19: 16,551,508 km (0.053 R)
• M20: 18,114,806 km (0.047 R)
• M21: 19,773,996 km (0.11 R)
• M22: 20,766,279 km (0.103 R)
• M23: 21,618,239 km (0.11 R)
• M24: 23,300,766 km (0.075 R)
• M25: 23,665,785 km (0.099 R)
• M26: 24,127,444 km (0.111 R)
• M27: 44,333,479 km (0.111 R)
• M28: 48,357,661 km (0.045 R)
• M29: 49,851,994 km (0.118 R)
• M30: 51,222,909 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 982.7

Radius: 5.6

Gravity: 31.34 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 6.94 AU - 11.34 AU

Year: 18427 Days

Day: 19.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 49,116,898 km

• M1: 95,144 km (0.097 R)
• M2: 366,216 km (0.11 R)
• M3: 609,013 km (0.075 R)
• M4: 1,057,358 km (0.102 R)
• M5: 1,278,164 km (0.09 R)
• M6: 1,776,475 km (0.069 R)
• M7: 1,988,754 km (0.051 R)
• M8: 2,729,862 km (0.064 R)
• M9: 3,232,361 km (0.097 R)
• M10: 5,422,923 km (0.094 R)
• M11: 10,649,872 km (0.062 R)
• M12: 11,223,431 km (0.059 R)
• M13: 13,211,586 km (0.102 R)
• M14: 23,092,825 km (0.12 R)
• M15: 31,135,356 km (0.068 R)
• M16: 35,707,516 km (0.082 R)
• M17: 36,273,145 km (0.093 R)
• M18: 41,169,932 km (0.091 R)
• M19: 43,856,561 km (0.114 R)
• M20: 47,164,020 km (0.087 R)
• M21: 64,740,723 km (0.09 R)
• M22: 66,216,805 km (0.11 R)
• M23: 68,364,282 km (0.049 R)
• M24: 72,797,615 km (0.115 R)
• M25: 77,891,423 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 129.4

Radius: 4.8

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 9.84 AU - 11.88 AU

Year: 23866 Days

Day: 16.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,116,898 km

• M1: 59,989 km (0.103 R)
• M2: 370,255 km (0.106 R)
• M3: 656,585 km (0.116 R)
• M4: 854,204 km (0.104 R)
• M5: 2,217,639 km (0.096 R)
• M6: 2,626,041 km (0.093 R)
• M7: 3,294,444 km (0.077 R)
• M8: 5,485,006 km (0.114 R)
• M9: 6,721,432 km (0.104 R)
• M10: 7,741,540 km (0.056 R)
• M11: 9,881,089 km (0.078 R)
• M12: 10,497,881 km (0.117 R)
• M13: 14,946,772 km (0.079 R)
• M14: 15,484,876 km (0.027 R)
• M15: 17,030,970 km (0.11 R)
• M16: 19,143,740 km (0.116 R)
• M17: 20,263,032 km (0.114 R)
• M18: 23,972,311 km (0.106 R)
• M19: 31,700,238 km (0.063 R)
• M20: 31,920,446 km (0.11 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 330 - 10,397 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit