🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.6

Radius: 13.6

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.43 AU - 0.71 AU

Year: 287 Days

Day: 7.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 86,559,011 km

• M1: 169,195 km (0.073 R)
• M2: 660,475 km (0.086 R)
• M3: 1,278,015 km (0.06 R)
• M4: 1,748,051 km (0.118 R)
• M5: 2,170,964 km (0.046 R)
• M6: 2,984,478 km (0.092 R)
• M7: 3,457,805 km (0.097 R)
• M8: 3,923,354 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.6

Radius: 15

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.69 AU - 1.09 AU

Year: 560 Days

Day: 12.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 86,559,011 km

• M1: 186,549 km (0.092 R)
• M2: 673,190 km (0.117 R)
• M3: 1,180,327 km (0.037 R)
• M4: 1,760,917 km (0.081 R)
• M5: 2,464,924 km (0.104 R)
• M6: 2,987,320 km (0.076 R)
• M7: 5,004,348 km (0.06 R)
• M8: 5,609,920 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 748.8

Radius: 12.6

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.09 AU - 1.43 AU

Year: 943 Days

Day: 9.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 86,559,011 km

• M1: 156,629 km (0.061 R)
• M2: 650,601 km (0.072 R)
• M3: 1,327,532 km (0.078 R)
• M4: 1,935,348 km (0.08 R)
• M5: 2,675,708 km (0.108 R)
• M6: 3,509,566 km (0.074 R)
• M7: 4,205,944 km (0.033 R)
• M8: 4,614,047 km (0.036 R)
• M9: 5,813,523 km (0.078 R)
• M10: 6,387,380 km (0.082 R)
• M11: 7,045,461 km (0.104 R)
• M12: 7,500,837 km (0.112 R)
• M13: 8,577,792 km (0.04 R)
• M14: 9,041,845 km (0.058 R)
• M15: 9,494,079 km (0.118 R)
• M16: 10,080,653 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.4

Radius: 12.1

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.21 AU - 1.33 AU

Year: 954 Days

Day: 10.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 86,559,011 km

• M1: 150,495 km (0.094 R)
• M2: 632,799 km (0.111 R)
• M3: 1,143,676 km (0.061 R)
• M4: 1,613,114 km (0.1 R)
• M5: 2,369,181 km (0.104 R)
• M6: 2,966,077 km (0.105 R)
• M7: 3,376,424 km (0.076 R)
• M8: 3,764,930 km (0.104 R)
• M9: 4,231,825 km (0.084 R)
• M10: 4,754,669 km (0.046 R)
• M11: 6,179,439 km (0.084 R)
• M12: 6,967,670 km (0.117 R)
• M13: 8,507,332 km (0.116 R)
• M14: 9,122,478 km (0.051 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 765.2

Radius: 7.3

Gravity: 14.36 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.23 AU - 6.85 AU

Year: 9899 Days

Day: 16.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 86,559,011 km

• M1: 90,806 km (0.088 R)
• M2: 324,627 km (0.117 R)
• M3: 553,961 km (0.104 R)
• M4: 1,008,439 km (0.058 R)
• M5: 1,281,007 km (0.072 R)
• M6: 1,706,463 km (0.115 R)
• M7: 2,410,470 km (0.116 R)
• M8: 2,817,825 km (0.085 R)
• M9: 4,234,069 km (0.095 R)
• M10: 4,674,485 km (0.118 R)
• M11: 6,478,934 km (0.066 R)
• M12: 7,266,717 km (0.111 R)
• M13: 7,556,936 km (0.119 R)
• M14: 9,661,778 km (0.047 R)
• M15: 12,186,841 km (0.043 R)
• M16: 12,835,647 km (0.043 R)
• M17: 14,656,851 km (0.109 R)
• M18: 15,594,830 km (0.057 R)
• M19: 16,148,492 km (0.096 R)
• M20: 17,664,217 km (0.09 R)
• M21: 19,115,317 km (0.11 R)
• M22: 19,589,542 km (0.112 R)
• M23: 20,726,785 km (0.079 R)
• M24: 20,976,015 km (0.114 R)
• M25: 22,079,449 km (0.12 R)
• M26: 31,782,965 km (0.11 R)
• M27: 37,987,836 km (0.059 R)
• M28: 39,369,672 km (0.053 R)
• M29: 40,395,315 km (0.072 R)
• M30: 40,914,868 km (0.087 R)
• M31: 48,225,118 km (0.117 R)
• M32: 48,516,833 km (0.057 R)
• M33: 48,809,746 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 341.3

Radius: 4.5

Gravity: 16.85 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 7.05 AU - 7.63 AU

Year: 13261 Days

Day: 17 Hours

Environment

Temp: -228 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 86,559,011 km

• M1: 56,099 km (0.118 R)
• M2: 216,767 km (0.113 R)
• M3: 385,364 km (0.103 R)
• M4: 591,809 km (0.054 R)
• M5: 947,703 km (0.095 R)
• M6: 1,986,660 km (0.096 R)
• M7: 2,530,149 km (0.078 R)
• M8: 3,009,909 km (0.056 R)
• M9: 3,647,645 km (0.048 R)
• M10: 4,457,119 km (0.084 R)
• M11: 5,511,784 km (0.108 R)
• M12: 5,713,891 km (0.098 R)
• M13: 6,276,977 km (0.097 R)
• M14: 7,636,223 km (0.102 R)
• M15: 9,416,737 km (0.063 R)
• M16: 9,901,733 km (0.119 R)
• M17: 12,811,711 km (0.031 R)
• M18: 15,836,431 km (0.103 R)
• M19: 16,040,033 km (0.058 R)
• M20: 17,950,398 km (0.062 R)
• M21: 19,228,114 km (0.095 R)
• M22: 19,382,349 km (0.098 R)
• M23: 27,402,590 km (0.079 R)
• M24: 30,850,970 km (0.118 R)
• M25: 34,577,603 km (0.062 R)
• M26: 35,496,134 km (0.116 R)
• M27: 36,078,369 km (0.078 R)
• M28: 40,207,569 km (0.083 R)
• M29: 40,713,210 km (0.115 R)
• M30: 42,385,565 km (0.101 R)
• M31: 42,777,960 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 987.8

Radius: 7.9

Gravity: 15.83 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 8.64 AU - 10.8 AU

Year: 20208 Days

Day: 22.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 86,559,011 km

• M1: 98,286 km (0.105 R)
• M2: 361,877 km (0.074 R)
• M3: 619,485 km (0.069 R)
• M4: 1,401,134 km (0.085 R)
• M5: 1,744,012 km (0.061 R)
• M6: 3,205,434 km (0.091 R)
• M7: 5,032,323 km (0.044 R)
• M8: 5,970,451 km (0.104 R)
• M9: 6,972,458 km (0.105 R)
• M10: 8,735,468 km (0.046 R)
• M11: 13,561,945 km (0.118 R)
• M12: 17,496,817 km (0.117 R)
• M13: 18,587,685 km (0.069 R)
• M14: 20,209,775 km (0.036 R)
• M15: 22,763,410 km (0.086 R)
• M16: 24,283,624 km (0.08 R)
• M17: 28,625,104 km (0.063 R)
• M18: 34,149,304 km (0.056 R)
• M19: 35,849,185 km (0.079 R)
• M20: 38,352,855 km (0.102 R)
• M21: 40,344,451 km (0.087 R)
• M22: 40,656,812 km (0.036 R)
• M23: 52,822,111 km (0.093 R)
• M24: 54,709,288 km (0.103 R)
• M25: 55,476,725 km (0.109 R)
• M26: 56,251,193 km (0.05 R)
• M27: 61,256,139 km (0.057 R)
• M28: 62,918,321 km (0.06 R)
• M29: 65,467,619 km (0.057 R)
• M30: 71,453,777 km (0.109 R)
• M31: 86,299,870 km (0.081 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 229 - 13,512 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit