🌌 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: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.1

Radius: 12

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.44 AU - 0.72 AU

Year: 295 Days

Day: 14 Hours

Environment

Temp: -143 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 62,770,944 km

• M1: 149,299 km (0.07 R)
• M2: 583,282 km (0.049 R)
• M3: 1,553,574 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.9

Radius: 12.5

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.81 AU - 0.97 AU

Year: 560 Days

Day: 5.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 62,770,944 km

• M1: 155,881 km (0.069 R)
• M2: 609,611 km (0.099 R)
• M3: 1,124,976 km (0.117 R)
• M4: 1,984,416 km (0.101 R)
• M5: 2,453,704 km (0.088 R)
• M6: 2,986,572 km (0.117 R)
• M7: 4,518,454 km (0.066 R)
• M8: 4,932,092 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.3

Radius: 11.2

Gravity: 6.7 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1 AU - 1.04 AU

Year: 687 Days

Day: 8.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,770,944 km

• M1: 139,276 km (0.074 R)
• M2: 524,490 km (0.071 R)
• M3: 1,302,549 km (0.058 R)
• M4: 1,699,133 km (0.095 R)
• M5: 2,246,511 km (0.074 R)
• M6: 3,055,985 km (0.115 R)
• M7: 3,542,777 km (0.049 R)
• M8: 4,173,033 km (0.075 R)
• M9: 4,539,996 km (0.057 R)
• M10: 5,015,867 km (0.099 R)
• M11: 5,413,049 km (0.074 R)
• M12: 6,230,003 km (0.045 R)
• M13: 6,928,177 km (0.045 R)
• M14: 7,867,202 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142

Radius: 8.1

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.02 AU - 1.26 AU

Year: 812 Days

Day: 7.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,770,944 km

• M1: 101,727 km (0.098 R)
• M2: 439,668 km (0.114 R)
• M3: 703,409 km (0.086 R)
• M4: 973,583 km (0.113 R)
• M5: 1,807,292 km (0.068 R)
• M6: 2,189,365 km (0.101 R)
• M7: 2,712,359 km (0.035 R)
• M8: 2,987,918 km (0.111 R)
• M9: 3,454,065 km (0.117 R)
• M10: 3,942,353 km (0.068 R)
• M11: 4,297,348 km (0.073 R)
• M12: 4,588,167 km (0.118 R)
• M13: 4,906,810 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.4

Radius: 14.9

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 2.35 AU - 2.57 AU

Year: 2573 Days

Day: 8.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 62,770,944 km

• M1: 185,352 km (0.049 R)
• M2: 719,267 km (0.11 R)
• M3: 1,343,090 km (0.12 R)
• M4: 1,864,887 km (0.116 R)
• M5: 2,864,799 km (0.086 R)
• M6: 3,749,820 km (0.096 R)
• M7: 5,072,415 km (0.08 R)
• M8: 5,648,217 km (0.052 R)
• M9: 7,098,269 km (0.085 R)
• M10: 7,761,287 km (0.052 R)
• M11: 13,319,297 km (0.032 R)
• M12: 14,285,250 km (0.119 R)
• M13: 14,785,655 km (0.091 R)
• M14: 15,297,579 km (0.085 R)
• M15: 16,505,283 km (0.113 R)
• M16: 17,056,551 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.3

Radius: 12.3

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 3.59 AU - 5.49 AU

Year: 6451 Days

Day: 10.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 102.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,770,944 km

• M1: 153,637 km (0.119 R)
• M2: 611,107 km (0.115 R)
• M3: 1,032,525 km (0.08 R)
• M4: 1,680,283 km (0.114 R)
• M5: 2,904,742 km (0.114 R)
• M6: 3,707,634 km (0.079 R)
• M7: 4,939,871 km (0.097 R)
• M8: 6,524,262 km (0.108 R)
• M9: 7,087,199 km (0.096 R)
• M10: 9,255,171 km (0.106 R)
• M11: 12,174,424 km (0.089 R)
• M12: 13,236,120 km (0.091 R)
• M13: 13,977,527 km (0.076 R)
• M14: 14,523,859 km (0.105 R)
• M15: 17,099,037 km (0.088 R)
• M16: 20,309,706 km (0.109 R)
• M17: 22,020,208 km (0.06 R)
• M18: 25,402,616 km (0.095 R)
• M19: 28,242,732 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 641.5

Radius: 4.9

Gravity: 26.72 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 5.9 AU - 8.86 AU

Year: 13369 Days

Day: 17.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 62,770,944 km

• M1: 69,413 km (0.025 R)
• M2: 241,601 km (0.113 R)
• M3: 463,305 km (0.103 R)
• M4: 682,914 km (0.085 R)
• M5: 1,419,085 km (0.096 R)
• M6: 1,738,327 km (0.116 R)
• M7: 2,519,378 km (0.113 R)
• M8: 3,011,256 km (0.096 R)
• M9: 4,272,964 km (0.108 R)
• M10: 4,456,072 km (0.11 R)
• M11: 4,772,920 km (0.105 R)
• M12: 5,740,369 km (0.108 R)
• M13: 7,871,690 km (0.101 R)
• M14: 8,815,653 km (0.055 R)
• M15: 13,544,890 km (0.102 R)
• M16: 15,673,967 km (0.077 R)
• M17: 16,037,041 km (0.116 R)
• M18: 16,554,650 km (0.04 R)
• M19: 16,931,337 km (0.091 R)
• M20: 22,912,410 km (0.09 R)
• M21: 28,411,777 km (0.04 R)
• M22: 29,607,962 km (0.06 R)
• M23: 29,940,069 km (0.105 R)
• M24: 32,100,561 km (0.1 R)
• M25: 35,470,403 km (0.073 R)
• M26: 35,719,783 km (0.101 R)
• M27: 37,757,007 km (0.031 R)
• M28: 43,328,181 km (0.073 R)
• M29: 43,613,015 km (0.057 R)
• M30: 44,042,810 km (0.079 R)
• M31: 46,681,118 km (0.088 R)
• M32: 50,675,082 km (0.106 R)
• M33: 50,833,057 km (0.029 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 497.4

Radius: 4.8

Gravity: 21.59 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 8.45 AU - 9.27 AU

Year: 17587 Days

Day: 15.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 62,770,944 km

• M1: 59,839 km (0.117 R)
• M2: 224,546 km (0.116 R)
• M3: 401,521 km (0.082 R)
• M4: 764,595 km (0.114 R)
• M5: 1,004,699 km (0.039 R)
• M6: 1,240,017 km (0.074 R)
• M7: 1,542,204 km (0.085 R)
• M8: 2,748,412 km (0.027 R)
• M9: 5,221,564 km (0.081 R)
• M10: 5,660,783 km (0.11 R)
• M11: 6,487,760 km (0.048 R)
• M12: 6,865,794 km (0.111 R)
• M13: 8,476,664 km (0.12 R)
• M14: 10,838,515 km (0.057 R)
• M15: 13,741,163 km (0.077 R)
• M16: 15,443,736 km (0.089 R)
• M17: 17,521,351 km (0.085 R)
• M18: 19,865,251 km (0.08 R)
• M19: 20,216,357 km (0.113 R)
• M20: 21,202,955 km (0.115 R)
• M21: 23,662,194 km (0.094 R)
• M22: 25,990,386 km (0.104 R)
• M23: 28,577,980 km (0.099 R)
• M24: 29,250,872 km (0.055 R)
• M25: 29,705,200 km (0.117 R)
• M26: 32,409,332 km (0.105 R)
• M27: 36,569,050 km (0.085 R)
• M28: 37,762,392 km (0.112 R)
• M29: 39,118,497 km (0.101 R)
• M30: 45,320,525 km (0.061 R)
• M31: 58,902,516 km (0.039 R)
• M32: 59,808,780 km (0.11 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 190 - 15,888 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit