🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.5 AU - 0.52 AU

Year: 235 Days

Day: 22.8 Hours

Environment

Temp: -109 °C

Axial Tilt: 14.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582.9

Radius: 12.6

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.71 AU - 0.73 AU

Year: 394 Days

Day: 8.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 75,015,926 km

• M1: 156,629 km (0.063 R)
• M2: 707,448 km (0.087 R)
• M3: 1,153,100 km (0.084 R)
• M4: 1,585,139 km (0.043 R)
• M5: 1,992,195 km (0.111 R)
• M6: 2,497,237 km (0.064 R)
• M7: 3,916,921 km (0.044 R)
• M8: 4,604,622 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.7

Radius: 8.7

Gravity: 10.25 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.69 AU - 1.11 AU

Year: 551 Days

Day: 12.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 75,015,926 km

• M1: 108,159 km (0.113 R)
• M2: 449,242 km (0.093 R)
• M3: 775,216 km (0.116 R)
• M4: 1,281,306 km (0.027 R)
• M5: 1,702,573 km (0.028 R)
• M6: 2,003,415 km (0.111 R)
• M7: 2,681,243 km (0.105 R)
• M8: 3,176,112 km (0.068 R)
• M9: 3,556,689 km (0.071 R)
• M10: 4,258,453 km (0.116 R)
• M11: 4,818,697 km (0.107 R)
• M12: 5,551,278 km (0.082 R)
• M13: 5,935,146 km (0.06 R)
• M14: 6,838,268 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.3

Radius: 8.1

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.22 AU - 1.82 AU

Year: 1210 Days

Day: 14.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,015,926 km

• M1: 101,278 km (0.037 R)
• M2: 561,740 km (0.036 R)
• M3: 1,125,574 km (0.113 R)
• M4: 1,418,337 km (0.12 R)
• M5: 1,685,968 km (0.108 R)
• M6: 2,131,770 km (0.089 R)
• M7: 3,393,478 km (0.111 R)
• M8: 3,789,314 km (0.08 R)
• M9: 4,391,745 km (0.119 R)
• M10: 5,255,672 km (0.088 R)
• M11: 5,728,102 km (0.104 R)
• M12: 6,911,122 km (0.032 R)
• M13: 7,785,372 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.7

Radius: 9.6

Gravity: 10.01 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.74 AU - 2.76 AU

Year: 2179 Days

Day: 13 Hours

Environment

Temp: -190 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 75,015,926 km

• M1: 120,277 km (0.116 R)
• M2: 446,550 km (0.043 R)
• M3: 1,100,143 km (0.047 R)
• M4: 2,458,043 km (0.111 R)
• M5: 3,358,472 km (0.087 R)
• M6: 4,550,618 km (0.093 R)
• M7: 5,848,978 km (0.059 R)
• M8: 6,215,792 km (0.101 R)
• M9: 7,499,940 km (0.093 R)
• M10: 9,194,584 km (0.079 R)
• M11: 9,619,293 km (0.065 R)
• M12: 10,432,208 km (0.087 R)
• M13: 11,290,002 km (0.066 R)
• M14: 15,294,886 km (0.113 R)
• M15: 17,345,275 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972

Radius: 10.7

Gravity: 8.49 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.17 AU - 2.63 AU

Year: 2401 Days

Day: 12.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 75,015,926 km

• M1: 133,142 km (0.114 R)
• M2: 596,596 km (0.097 R)
• M3: 981,960 km (0.11 R)
• M4: 1,578,856 km (0.065 R)
• M5: 1,954,795 km (0.102 R)
• M6: 2,306,799 km (0.076 R)
• M7: 2,956,802 km (0.114 R)
• M8: 3,479,497 km (0.049 R)
• M9: 4,229,431 km (0.092 R)
• M10: 4,665,658 km (0.109 R)
• M11: 5,204,360 km (0.086 R)
• M12: 5,603,188 km (0.113 R)
• M13: 6,519,176 km (0.115 R)
• M14: 8,241,347 km (0.09 R)
• M15: 8,578,241 km (0.109 R)
• M16: 9,867,924 km (0.118 R)
• M17: 10,325,395 km (0.114 R)
• M18: 10,757,134 km (0.09 R)
• M19: 11,953,319 km (0.084 R)
• M20: 13,327,824 km (0.105 R)
• M21: 13,840,047 km (0.083 R)
• M22: 14,854,470 km (0.046 R)
• M23: 19,175,904 km (0.089 R)
• M24: 20,252,410 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.6

Radius: 9.2

Gravity: 11.6 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 4.09 AU - 4.41 AU

Year: 5657 Days

Day: 8.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 75,015,926 km

• M1: 115,938 km (0.064 R)
• M2: 475,572 km (0.091 R)
• M3: 880,832 km (0.043 R)
• M4: 1,222,813 km (0.1 R)
• M5: 1,906,326 km (0.099 R)
• M6: 2,767,261 km (0.053 R)
• M7: 3,274,847 km (0.071 R)
• M8: 4,638,282 km (0.066 R)
• M9: 5,002,553 km (0.11 R)
• M10: 5,385,972 km (0.103 R)
• M11: 6,448,117 km (0.096 R)
• M12: 8,519,748 km (0.092 R)
• M13: 9,328,624 km (0.074 R)
• M14: 10,902,394 km (0.032 R)
• M15: 11,346,998 km (0.047 R)
• M16: 11,701,097 km (0.112 R)
• M17: 12,062,675 km (0.079 R)
• M18: 13,868,471 km (0.114 R)
• M19: 14,390,717 km (0.076 R)
• M20: 14,746,161 km (0.071 R)
• M21: 17,068,967 km (0.083 R)
• M22: 18,490,596 km (0.096 R)
• M23: 22,824,746 km (0.108 R)
• M24: 25,570,465 km (0.096 R)
• M25: 26,179,927 km (0.106 R)
• M26: 28,996,406 km (0.101 R)
• M27: 31,509,351 km (0.104 R)
• M28: 33,642,317 km (0.06 R)
• M29: 35,978,138 km (0.114 R)
• M30: 36,523,722 km (0.112 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 391.2

Radius: 12.1

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 3.86 AU - 6.38 AU

Year: 7480 Days

Day: 12.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 75,015,926 km

• M1: 150,645 km (0.067 R)
• M2: 557,850 km (0.114 R)
• M3: 1,031,178 km (0.104 R)
• M4: 1,432,549 km (0.119 R)
• M5: 2,207,017 km (0.084 R)
• M6: 2,672,267 km (0.1 R)
• M7: 3,918,118 km (0.118 R)
• M8: 4,301,836 km (0.045 R)
• M9: 5,787,493 km (0.09 R)
• M10: 6,548,048 km (0.061 R)
• M11: 8,191,082 km (0.059 R)
• M12: 10,317,017 km (0.115 R)
• M13: 11,678,208 km (0.092 R)
• M14: 14,300,958 km (0.066 R)
• M15: 14,754,389 km (0.09 R)
• M16: 16,540,737 km (0.112 R)
• M17: 17,103,674 km (0.1 R)
• M18: 22,003,304 km (0.103 R)
• M19: 24,409,286 km (0.095 R)
• M20: 27,591,532 km (0.12 R)
• M21: 29,191,332 km (0.084 R)
• M22: 31,229,603 km (0.107 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.3

Radius: 11.1

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 4.59 AU - 5.77 AU

Year: 7612 Days

Day: 14.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 75,015,926 km

• M1: 138,677 km (0.074 R)
• M2: 871,856 km (0.087 R)
• M3: 1,703,621 km (0.111 R)
• M4: 3,705,539 km (0.049 R)
• M5: 5,345,431 km (0.097 R)
• M6: 6,761,824 km (0.081 R)
• M7: 7,161,400 km (0.102 R)
• M8: 8,128,400 km (0.098 R)
• M9: 10,704,924 km (0.115 R)
• M10: 11,098,666 km (0.092 R)
• M11: 12,607,959 km (0.052 R)
• M12: 13,497,019 km (0.078 R)
• M13: 14,787,002 km (0.117 R)
• M14: 16,350,748 km (0.095 R)
• M15: 19,078,067 km (0.079 R)
• M16: 19,584,605 km (0.101 R)
• M17: 22,573,571 km (0.079 R)
• M18: 23,058,866 km (0.112 R)
• M19: 23,468,764 km (0.118 R)
• M20: 24,984,340 km (0.113 R)
• M21: 26,207,453 km (0.06 R)
• M22: 28,023,571 km (0.065 R)
• M23: 31,501,422 km (0.094 R)
• M24: 34,825,786 km (0.087 R)
• M25: 37,018,143 km (0.115 R)
• M26: 38,148,205 km (0.112 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 773

Radius: 7.9

Gravity: 12.39 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 7.74 AU - 10.94 AU

Year: 18430 Days

Day: 16.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 75,015,926 km

• M1: 98,286 km (0.096 R)
• M2: 453,431 km (0.098 R)
• M3: 753,225 km (0.056 R)
• M4: 1,384,827 km (0.07 R)
• M5: 1,982,770 km (0.05 R)
• M6: 3,365,653 km (0.081 R)
• M7: 3,681,753 km (0.086 R)
• M8: 5,261,656 km (0.104 R)
• M9: 6,180,337 km (0.026 R)
• M10: 6,523,664 km (0.096 R)
• M11: 6,789,499 km (0.108 R)
• M12: 10,632,220 km (0.1 R)
• M13: 11,001,128 km (0.077 R)
• M14: 13,254,970 km (0.11 R)
• M15: 16,853,547 km (0.105 R)
• M16: 17,103,076 km (0.092 R)
• M17: 21,344,475 km (0.119 R)
• M18: 22,934,700 km (0.077 R)
• M19: 27,139,298 km (0.045 R)
• M20: 27,713,006 km (0.057 R)
• M21: 32,468,722 km (0.07 R)
• M22: 32,855,732 km (0.075 R)
• M23: 43,090,171 km (0.056 R)
• M24: 44,028,149 km (0.081 R)
• M25: 45,139,662 km (0.093 R)
• M26: 47,750,144 km (0.032 R)
• M27: 52,912,916 km (0.049 R)
• M28: 60,943,929 km (0.116 R)
• M29: 65,967,275 km (0.09 R)
• M30: 70,179,353 km (0.088 R)
• M31: 73,453,602 km (0.097 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 528 - 15,032 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit