🌌 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 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.6 AU - 0.64 AU

Year: 320 Days

Day: 16.6 Hours

Environment

Temp: -125 °C

Axial Tilt: 39.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.5

Radius: 10.9

Gravity: 8.06 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.67 AU - 0.71 AU

Year: 376 Days

Day: 12.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,244,214 km

• M1: 135,685 km (0.057 R)
• M2: 549,772 km (0.098 R)
• M3: 976,575 km (0.09 R)
• M4: 1,503,159 km (0.116 R)
• M5: 1,880,296 km (0.104 R)
• M6: 2,936,457 km (0.105 R)
• M7: 3,377,322 km (0.085 R)
• M8: 3,862,168 km (0.102 R)
• M9: 4,479,110 km (0.115 R)
• M10: 4,941,517 km (0.086 R)
• M11: 5,304,890 km (0.104 R)
• M12: 5,652,406 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283

Radius: 8

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.92 AU - 1.14 AU

Year: 686 Days

Day: 5 Hours

Environment

Temp: -150 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 40,244,214 km

• M1: 99,931 km (0.119 R)
• M2: 376,239 km (0.1 R)
• M3: 725,849 km (0.042 R)
• M4: 1,474,287 km (0.099 R)
• M5: 1,998,179 km (0.094 R)
• M6: 2,944,535 km (0.114 R)
• M7: 3,711,523 km (0.047 R)
• M8: 5,319,401 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.9

Radius: 10.1

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.98 AU - 1.08 AU

Year: 686 Days

Day: 5.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,244,214 km

• M1: 127,906 km (0.09 R)
• M2: 567,126 km (0.063 R)
• M3: 898,784 km (0.025 R)
• M4: 1,212,940 km (0.066 R)
• M5: 1,562,999 km (0.077 R)
• M6: 1,882,988 km (0.09 R)
• M7: 2,298,122 km (0.108 R)
• M8: 2,994,501 km (0.105 R)
• M9: 4,593,103 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.2

Radius: 13.3

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.46 AU - 2.36 AU

Year: 1732 Days

Day: 5.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,244,214 km

• M1: 165,455 km (0.078 R)
• M2: 594,053 km (0.104 R)
• M3: 1,146,368 km (0.058 R)
• M4: 1,616,854 km (0.097 R)
• M5: 2,381,149 km (0.071 R)
• M6: 3,314,640 km (0.091 R)
• M7: 4,277,003 km (0.115 R)
• M8: 4,707,097 km (0.111 R)
• M9: 5,125,223 km (0.053 R)
• M10: 5,877,700 km (0.117 R)
• M11: 7,053,689 km (0.095 R)
• M12: 7,523,127 km (0.098 R)
• M13: 9,333,710 km (0.051 R)
• M14: 9,997,327 km (0.04 R)
• M15: 10,457,190 km (0.075 R)
• M16: 11,885,551 km (0.116 R)
• M17: 13,088,019 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.7

Radius: 10.1

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.69 AU - 2.23 AU

Year: 1800 Days

Day: 14.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 100.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,244,214 km

• M1: 126,261 km (0.065 R)
• M2: 443,258 km (0.094 R)
• M3: 1,183,170 km (0.115 R)
• M4: 1,545,645 km (0.093 R)
• M5: 1,971,999 km (0.073 R)
• M6: 2,330,585 km (0.114 R)
• M7: 2,693,360 km (0.116 R)
• M8: 4,539,996 km (0.084 R)
• M9: 4,908,157 km (0.094 R)
• M10: 5,617,101 km (0.112 R)
• M11: 6,134,410 km (0.047 R)
• M12: 7,634,727 km (0.117 R)
• M13: 8,940,418 km (0.082 R)
• M14: 10,094,116 km (0.114 R)
• M15: 12,061,927 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.9

Radius: 12.7

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 3.69 AU - 6.11 AU

Year: 7115 Days

Day: 6.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 40,244,214 km

• M1: 159,023 km (0.118 R)
• M2: 616,194 km (0.113 R)
• M3: 1,288,786 km (0.056 R)
• M4: 1,923,081 km (0.11 R)
• M5: 3,305,515 km (0.085 R)
• M6: 3,750,119 km (0.073 R)
• M7: 4,181,859 km (0.055 R)
• M8: 5,912,257 km (0.107 R)
• M9: 6,826,600 km (0.108 R)
• M10: 7,356,924 km (0.114 R)
• M11: 8,760,003 km (0.106 R)
• M12: 10,831,634 km (0.09 R)
• M13: 12,144,654 km (0.095 R)
• M14: 16,788,471 km (0.094 R)
• M15: 19,578,771 km (0.119 R)
• M16: 20,033,997 km (0.102 R)
• M17: 22,914,953 km (0.106 R)
• M18: 25,160,267 km (0.071 R)
• M19: 27,548,747 km (0.086 R)
• M20: 35,168,365 km (0.108 R)
• M21: 37,446,142 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 875.1

Radius: 5.4

Gravity: 30.01 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 7.2 AU - 8.54 AU

Year: 14483 Days

Day: 22.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 80.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 40,244,214 km

• M1: 67,169 km (0.09 R)
• M2: 249,679 km (0.101 R)
• M3: 530,624 km (0.071 R)
• M4: 765,792 km (0.12 R)
• M5: 1,021,454 km (0.06 R)
• M6: 1,277,117 km (0.12 R)
• M7: 1,542,952 km (0.034 R)
• M8: 2,590,138 km (0.043 R)
• M9: 3,170,278 km (0.092 R)
• M10: 3,463,640 km (0.113 R)
• M11: 5,245,350 km (0.075 R)
• M12: 5,732,890 km (0.051 R)
• M13: 5,967,908 km (0.1 R)
• M14: 6,291,039 km (0.116 R)
• M15: 7,105,749 km (0.119 R)
• M16: 14,433,651 km (0.11 R)
• M17: 15,164,138 km (0.105 R)
• M18: 16,227,629 km (0.112 R)
• M19: 16,540,289 km (0.09 R)
• M20: 17,339,889 km (0.075 R)
• M21: 20,704,944 km (0.108 R)
• M22: 22,395,250 km (0.066 R)
• M23: 28,014,744 km (0.115 R)
• M24: 29,379,675 km (0.028 R)
• M25: 31,147,324 km (0.108 R)
• M26: 38,650,255 km (0.097 R)
• M27: 46,326,571 km (0.12 R)
• M28: 48,231,700 km (0.091 R)
• M29: 50,023,434 km (0.119 R)
• M30: 51,354,107 km (0.072 R)
• M31: 53,912,230 km (0.099 R)
• M32: 55,664,171 km (0.113 R)
• M33: 58,179,958 km (0.084 R)
• M34: 60,395,952 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 908.4

Radius: 3.6

Gravity: 70.09 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 7.75 AU - 9.05 AU

Year: 15971 Days

Day: 15.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 40,244,214 km

• M1: 45,328 km (0.104 R)
• M2: 162,912 km (0.062 R)
• M3: 307,424 km (0.104 R)
• M4: 478,264 km (0.094 R)
• M5: 842,236 km (0.086 R)
• M6: 1,265,448 km (0.082 R)
• M7: 1,398,142 km (0.104 R)
• M8: 1,556,566 km (0.091 R)
• M9: 2,065,049 km (0.074 R)
• M10: 2,271,045 km (0.089 R)
• M11: 2,559,021 km (0.092 R)
• M12: 2,997,642 km (0.096 R)
• M13: 3,154,271 km (0.111 R)
• M14: 3,897,773 km (0.058 R)
• M15: 5,643,131 km (0.085 R)
• M16: 6,729,361 km (0.109 R)
• M17: 7,043,965 km (0.055 R)
• M18: 7,751,264 km (0.06 R)
• M19: 10,097,407 km (0.077 R)
• M20: 11,117,964 km (0.083 R)
• M21: 12,945,452 km (0.06 R)
• M22: 13,152,495 km (0.086 R)
• M23: 21,096,142 km (0.095 R)
• M24: 31,114,861 km (0.063 R)
• M25: 36,039,473 km (0.087 R)
• M26: 37,696,270 km (0.091 R)
• M27: 41,309,657 km (0.092 R)
• M28: 47,559,856 km (0.052 R)
• M29: 51,769,839 km (0.107 R)
• M30: 52,640,648 km (0.074 R)
• M31: 52,815,977 km (0.107 R)
• M32: 56,038,764 km (0.113 R)
• M33: 57,326,652 km (0.064 R)
• M34: 58,258,497 km (0.052 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 80

Radius: 4.8

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 9.77 AU - 11.35 AU

Year: 22512 Days

Day: 24.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 40,244,214 km

• M1: 61,335 km (0.085 R)
• M2: 453,581 km (0.1 R)
• M3: 672,592 km (0.065 R)
• M4: 877,242 km (0.087 R)
• M5: 1,681,330 km (0.106 R)
• M6: 3,895,080 km (0.062 R)
• M7: 4,312,159 km (0.092 R)
• M8: 5,327,779 km (0.104 R)
• M9: 8,312,705 km (0.085 R)
• M10: 10,643,290 km (0.085 R)
• M11: 10,892,819 km (0.086 R)
• M12: 11,095,375 km (0.081 R)
• M13: 12,806,775 km (0.069 R)
• M14: 19,797,034 km (0.118 R)
• M15: 20,327,059 km (0.092 R)
• M16: 26,248,592 km (0.046 R)
• M17: 26,430,204 km (0.097 R)
• M18: 28,008,312 km (0.09 R)
• M19: 33,864,171 km (0.1 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: 538 - 16,933 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit