🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.8

Radius: 9.3

Gravity: 6.83 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.65 AU - 0.81 AU

Year: 403 Days

Day: 7.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,154,736 km

• M1: 115,938 km (0.116 R)
• M2: 453,880 km (0.055 R)
• M3: 1,002,605 km (0.087 R)
• M4: 1,402,330 km (0.062 R)
• M5: 1,721,572 km (0.095 R)
• M6: 2,016,729 km (0.096 R)
• M7: 2,841,612 km (0.107 R)
• M8: 3,191,222 km (0.084 R)
• M9: 3,913,779 km (0.097 R)
• M10: 4,799,698 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.9

Radius: 9.9

Gravity: 7.97 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.66 AU - 0.9 AU

Year: 445 Days

Day: 11.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 51.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,154,736 km

• M1: 123,269 km (0.081 R)
• M2: 730,786 km (0.066 R)
• M3: 1,182,422 km (0.066 R)
• M4: 1,723,517 km (0.099 R)
• M5: 2,035,429 km (0.112 R)
• M6: 2,925,686 km (0.09 R)
• M7: 3,459,301 km (0.116 R)
• M8: 3,921,259 km (0.108 R)
• M9: 4,541,343 km (0.084 R)
• M10: 5,440,426 km (0.066 R)
• M11: 5,870,520 km (0.026 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.7

Radius: 14.5

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.84 AU - 1.06 AU

Year: 598 Days

Day: 6.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,154,736 km

• M1: 180,415 km (0.045 R)
• M2: 716,424 km (0.082 R)
• M3: 1,386,174 km (0.061 R)
• M4: 1,985,164 km (0.11 R)
• M5: 3,341,568 km (0.103 R)
• M6: 4,154,482 km (0.087 R)
• M7: 5,510,587 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.5

Radius: 10.7

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.44 AU - 1.56 AU

Year: 1186 Days

Day: 11.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,154,736 km

• M1: 135,984 km (0.08 R)
• M2: 481,256 km (0.119 R)
• M3: 1,202,617 km (0.059 R)
• M4: 2,056,821 km (0.08 R)
• M5: 3,046,561 km (0.068 R)
• M6: 3,880,120 km (0.116 R)
• M7: 4,328,166 km (0.119 R)
• M8: 5,380,587 km (0.028 R)
• M9: 6,339,210 km (0.091 R)
• M10: 6,941,940 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.6

Radius: 11.7

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 2.4 AU - 3.64 AU

Year: 3389 Days

Day: 9.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 42,154,736 km

• M1: 145,559 km (0.057 R)
• M2: 519,254 km (0.049 R)
• M3: 915,539 km (0.077 R)
• M4: 1,376,600 km (0.109 R)
• M5: 1,888,823 km (0.111 R)
• M6: 2,785,961 km (0.092 R)
• M7: 3,635,677 km (0.093 R)
• M8: 4,531,619 km (0.114 R)
• M9: 5,121,184 km (0.047 R)
• M10: 6,217,288 km (0.043 R)
• M11: 7,397,465 km (0.113 R)
• M12: 8,906,758 km (0.09 R)
• M13: 9,401,179 km (0.093 R)
• M14: 9,994,335 km (0.079 R)
• M15: 11,788,761 km (0.12 R)
• M16: 12,338,683 km (0.077 R)
• M17: 13,001,850 km (0.091 R)
• M18: 16,566,917 km (0.089 R)
• M19: 19,634,721 km (0.108 R)
• M20: 20,083,514 km (0.114 R)
• M21: 23,923,991 km (0.089 R)
• M22: 24,362,462 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 626.8

Radius: 8.6

Gravity: 8.47 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 3.53 AU - 3.83 AU

Year: 4558 Days

Day: 13.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,154,736 km

• M1: 107,411 km (0.103 R)
• M2: 500,854 km (0.062 R)
• M3: 826,229 km (0.12 R)
• M4: 1,195,586 km (0.115 R)
• M5: 2,592,082 km (0.074 R)
• M6: 3,580,176 km (0.109 R)
• M7: 3,945,045 km (0.106 R)
• M8: 4,502,447 km (0.093 R)
• M9: 5,603,487 km (0.055 R)
• M10: 6,462,030 km (0.036 R)
• M11: 8,550,565 km (0.113 R)
• M12: 8,892,845 km (0.107 R)
• M13: 9,645,472 km (0.036 R)
• M14: 10,100,250 km (0.062 R)
• M15: 11,097,469 km (0.081 R)
• M16: 14,860,155 km (0.106 R)
• M17: 15,355,623 km (0.085 R)
• M18: 21,346,419 km (0.105 R)
• M19: 22,837,611 km (0.112 R)
• M20: 24,245,626 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.2

Radius: 11.1

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 3.19 AU - 5.27 AU

Year: 5617 Days

Day: 12.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,154,736 km

• M1: 140,323 km (0.104 R)
• M2: 889,210 km (0.118 R)
• M3: 1,311,225 km (0.115 R)
• M4: 1,892,862 km (0.083 R)
• M5: 3,012,153 km (0.05 R)
• M6: 3,361,165 km (0.084 R)
• M7: 3,861,869 km (0.119 R)
• M8: 4,815,256 km (0.028 R)
• M9: 5,918,840 km (0.103 R)
• M10: 7,056,083 km (0.077 R)
• M11: 7,410,929 km (0.078 R)
• M12: 10,078,708 km (0.092 R)
• M13: 23,557,775 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 284.3

Radius: 4

Gravity: 17.77 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 7.07 AU - 8.23 AU

Year: 13662 Days

Day: 20.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 127.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 42,154,736 km

• M1: 49,816 km (0.094 R)
• M2: 195,225 km (0.082 R)
• M3: 428,598 km (0.113 R)
• M4: 642,523 km (0.088 R)
• M5: 1,133,353 km (0.112 R)
• M6: 1,385,276 km (0.118 R)
• M7: 1,887,028 km (0.106 R)
• M8: 2,017,028 km (0.115 R)
• M9: 2,350,033 km (0.114 R)
• M10: 2,481,679 km (0.031 R)
• M11: 2,698,446 km (0.077 R)
• M12: 4,732,678 km (0.089 R)
• M13: 5,986,159 km (0.068 R)
• M14: 6,859,062 km (0.046 R)
• M15: 7,167,832 km (0.084 R)
• M16: 10,992,601 km (0.094 R)
• M17: 11,630,786 km (0.076 R)
• M18: 12,576,992 km (0.09 R)
• M19: 14,183,225 km (0.071 R)
• M20: 14,811,236 km (0.07 R)
• M21: 15,003,170 km (0.058 R)
• M22: 15,392,125 km (0.12 R)
• M23: 17,580,891 km (0.09 R)
• M24: 19,658,806 km (0.083 R)
• M25: 21,647,410 km (0.111 R)
• M26: 22,563,398 km (0.095 R)
• M27: 25,101,625 km (0.06 R)
• M28: 25,557,599 km (0.089 R)
• M29: 26,958,883 km (0.075 R)
• M30: 29,306,073 km (0.106 R)
• M31: 30,944,320 km (0.097 R)
• M32: 31,998,536 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 138.5

Radius: 5.1

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 8.68 AU - 9.94 AU

Year: 18342 Days

Day: 15.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 42,154,736 km

• M1: 72,106 km (0.09 R)
• M2: 910,453 km (0.105 R)
• M3: 1,366,577 km (0.1 R)
• M4: 1,978,581 km (0.102 R)
• M5: 3,249,116 km (0.027 R)
• M6: 4,433,482 km (0.074 R)
• M7: 4,660,422 km (0.106 R)
• M8: 7,695,464 km (0.057 R)
• M9: 9,664,471 km (0.05 R)
• M10: 10,488,307 km (0.098 R)
• M11: 11,729,819 km (0.106 R)
• M12: 13,066,028 km (0.072 R)
• M13: 13,951,049 km (0.094 R)
• M14: 14,132,660 km (0.113 R)
• M15: 15,839,423 km (0.111 R)
• M16: 18,034,622 km (0.074 R)
• M17: 20,737,406 km (0.101 R)
• M18: 22,598,554 km (0.11 R)
• M19: 25,279,347 km (0.116 R)
• M20: 31,055,920 km (0.08 R)
• M21: 35,923,984 km (0.029 R)
• M22: 36,494,401 km (0.078 R)
• M23: 40,534,441 km (0.081 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 455 - 12,088 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit