🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.3

Radius: 9.2

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.77 AU - 0.89 AU

Year: 522 Days

Day: 12.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,805,727 km

• M1: 114,442 km (0.071 R)
• M2: 402,867 km (0.115 R)
• M3: 867,069 km (0.078 R)
• M4: 1,335,610 km (0.117 R)
• M5: 1,706,762 km (0.037 R)
• M6: 2,042,310 km (0.11 R)
• M7: 2,393,416 km (0.032 R)
• M8: 2,935,559 km (0.105 R)
• M9: 3,301,027 km (0.119 R)
• M10: 3,879,821 km (0.035 R)
• M11: 4,221,951 km (0.116 R)
• M12: 4,935,683 km (0.117 R)
• M13: 5,255,972 km (0.111 R)
• M14: 6,099,853 km (0.053 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188.3

Radius: 13.2

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.04 AU - 1.3 AU

Year: 874 Days

Day: 6.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,805,727 km

• M1: 164,109 km (0.091 R)
• M2: 603,478 km (0.112 R)
• M3: 1,546,543 km (0.058 R)
• M4: 2,347,041 km (0.114 R)
• M5: 2,795,984 km (0.094 R)
• M6: 3,408,887 km (0.094 R)
• M7: 5,464,062 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264

Radius: 13.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.16 AU - 1.54 AU

Year: 1083 Days

Day: 12.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,805,727 km

• M1: 173,683 km (0.096 R)
• M2: 1,455,438 km (0.099 R)
• M3: 2,730,311 km (0.112 R)
• M4: 3,275,745 km (0.105 R)
• M5: 3,711,523 km (0.047 R)
• M6: 4,353,448 km (0.086 R)
• M7: 5,401,231 km (0.106 R)
• M8: 6,110,774 km (0.087 R)
• M9: 6,902,745 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.6

Radius: 8.1

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.55 AU - 2.75 AU

Year: 2978 Days

Day: 6.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,805,727 km

• M1: 100,979 km (0.069 R)
• M2: 374,144 km (0.07 R)
• M3: 851,062 km (0.105 R)
• M4: 1,136,196 km (0.115 R)
• M5: 1,447,808 km (0.041 R)
• M6: 1,789,939 km (0.081 R)
• M7: 3,062,867 km (0.057 R)
• M8: 4,252,020 km (0.1 R)
• M9: 4,647,108 km (0.041 R)
• M10: 4,994,923 km (0.114 R)
• M11: 5,626,077 km (0.083 R)
• M12: 6,802,066 km (0.103 R)
• M13: 7,159,754 km (0.054 R)
• M14: 8,435,226 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.4

Radius: 13.3

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.59 AU - 2.89 AU

Year: 3131 Days

Day: 9.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,805,727 km

• M1: 174,730 km (0.116 R)
• M2: 844,330 km (0.108 R)
• M3: 1,768,097 km (0.099 R)
• M4: 2,276,730 km (0.102 R)
• M5: 3,028,609 km (0.104 R)
• M6: 3,696,713 km (0.102 R)
• M7: 4,232,722 km (0.077 R)
• M8: 4,861,482 km (0.104 R)
• M9: 5,551,876 km (0.1 R)
• M10: 6,136,056 km (0.082 R)
• M11: 6,864,747 km (0.116 R)
• M12: 7,963,992 km (0.076 R)
• M13: 8,831,959 km (0.119 R)
• M14: 9,369,614 km (0.108 R)
• M15: 11,333,385 km (0.066 R)
• M16: 12,628,155 km (0.11 R)
• M17: 13,892,556 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.9

Radius: 12.6

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 3.33 AU - 4.31 AU

Year: 5154 Days

Day: 10.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,805,727 km

• M1: 156,629 km (0.072 R)
• M2: 681,867 km (0.081 R)
• M3: 1,139,786 km (0.113 R)
• M4: 1,975,141 km (0.049 R)
• M5: 2,497,536 km (0.101 R)
• M6: 3,074,685 km (0.065 R)
• M7: 3,554,745 km (0.098 R)
• M8: 4,062,629 km (0.087 R)
• M9: 7,041,123 km (0.113 R)
• M10: 8,021,587 km (0.114 R)
• M11: 8,862,178 km (0.106 R)
• M12: 11,969,326 km (0.111 R)
• M13: 12,920,170 km (0.053 R)
• M14: 15,963,439 km (0.116 R)
• M15: 17,591,363 km (0.101 R)
• M16: 21,585,926 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.1

Radius: 11.8

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 4.14 AU - 4.42 AU

Year: 6112 Days

Day: 8.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,805,727 km

• M1: 146,905 km (0.066 R)
• M2: 728,542 km (0.05 R)
• M3: 1,393,504 km (0.108 R)
• M4: 2,343,301 km (0.086 R)
• M5: 2,726,272 km (0.114 R)
• M6: 3,873,089 km (0.106 R)
• M7: 6,311,235 km (0.067 R)
• M8: 7,765,925 km (0.078 R)
• M9: 8,479,656 km (0.107 R)
• M10: 9,315,011 km (0.038 R)
• M11: 10,121,044 km (0.062 R)
• M12: 11,327,102 km (0.117 R)
• M13: 12,530,617 km (0.095 R)
• M14: 14,919,844 km (0.093 R)
• M15: 15,520,181 km (0.091 R)
• M16: 21,394,889 km (0.074 R)
• M17: 24,259,389 km (0.053 R)
• M18: 26,017,463 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.7

Radius: 12.3

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 3.91 AU - 6.1 AU

Year: 7717 Days

Day: 10.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 72,805,727 km

• M1: 153,039 km (0.098 R)
• M2: 1,124,527 km (0.035 R)
• M3: 1,557,164 km (0.077 R)
• M4: 2,039,019 km (0.057 R)
• M5: 3,095,180 km (0.06 R)
• M6: 4,015,955 km (0.049 R)
• M7: 5,601,692 km (0.053 R)
• M8: 6,430,913 km (0.093 R)
• M9: 7,727,478 km (0.108 R)
• M10: 8,841,234 km (0.044 R)
• M11: 10,106,383 km (0.08 R)
• M12: 11,437,356 km (0.08 R)
• M13: 12,065,218 km (0.112 R)
• M14: 12,993,622 km (0.093 R)
• M15: 16,195,765 km (0.11 R)
• M16: 18,506,902 km (0.076 R)
• M17: 21,107,512 km (0.072 R)
• M18: 22,780,016 km (0.092 R)
• M19: 24,112,334 km (0.11 R)
• M20: 26,207,153 km (0.058 R)
• M21: 26,931,656 km (0.119 R)
• M22: 30,062,440 km (0.113 R)
• M23: 30,557,011 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 421.7

Radius: 7.1

Gravity: 8.37 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 9.16 AU - 10.66 AU

Year: 21534 Days

Day: 18.4 Hours

Environment

Temp: -239 °C

Axial Tilt: 104.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 72,805,727 km

• M1: 88,412 km (0.116 R)
• M2: 458,517 km (0.112 R)
• M3: 1,074,711 km (0.075 R)
• M4: 1,352,066 km (0.119 R)
• M5: 2,272,092 km (0.088 R)
• M6: 3,417,713 km (0.117 R)
• M7: 4,337,291 km (0.085 R)
• M8: 4,666,556 km (0.067 R)
• M9: 5,716,583 km (0.09 R)
• M10: 6,276,379 km (0.098 R)
• M11: 7,883,509 km (0.118 R)
• M12: 8,324,673 km (0.085 R)
• M13: 10,604,095 km (0.11 R)
• M14: 14,465,067 km (0.052 R)
• M15: 16,272,658 km (0.112 R)
• M16: 21,159,422 km (0.044 R)
• M17: 22,396,746 km (0.086 R)
• M18: 26,942,277 km (0.098 R)
• M19: 27,383,741 km (0.072 R)
• M20: 27,606,342 km (0.054 R)
• M21: 29,898,331 km (0.118 R)
• M22: 31,332,825 km (0.053 R)
• M23: 38,081,185 km (0.093 R)
• M24: 47,318,854 km (0.086 R)
• M25: 49,758,496 km (0.111 R)
• M26: 50,757,361 km (0.083 R)
• M27: 56,311,780 km (0.048 R)
• M28: 57,761,084 km (0.059 R)
• M29: 63,417,679 km (0.066 R)
• M30: 64,198,729 km (0.041 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 499.3

Radius: 5

Gravity: 19.97 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 8.95 AU - 11.11 AU

Year: 21926 Days

Day: 20.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 72,805,727 km

• M1: 62,233 km (0.104 R)
• M2: 307,723 km (0.114 R)
• M3: 735,872 km (0.033 R)
• M4: 994,227 km (0.093 R)
• M5: 1,282,652 km (0.057 R)
• M6: 1,854,714 km (0.117 R)
• M7: 3,776,748 km (0.113 R)
• M8: 3,960,005 km (0.082 R)
• M9: 5,967,758 km (0.111 R)
• M10: 6,735,195 km (0.052 R)
• M11: 8,778,553 km (0.117 R)
• M12: 9,711,744 km (0.057 R)
• M13: 9,883,034 km (0.102 R)
• M14: 17,483,054 km (0.072 R)
• M15: 22,633,709 km (0.075 R)
• M16: 24,906,400 km (0.098 R)
• M17: 27,100,552 km (0.067 R)
• M18: 29,064,174 km (0.084 R)
• M19: 45,528,766 km (0.081 R)
• M20: 46,654,639 km (0.115 R)
• M21: 55,060,543 km (0.11 R)
• M22: 64,421,032 km (0.047 R)
• M23: 71,288,771 km (0.058 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 342 - 12,054 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit