🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

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: 532.8

Radius: 10.5

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.54 AU - 0.6 AU

Year: 302 Days

Day: 7.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,748,035 km

• M1: 130,599 km (0.089 R)
• M2: 529,128 km (0.117 R)
• M3: 870,959 km (0.119 R)
• M4: 1,412,353 km (0.111 R)
• M5: 1,959,134 km (0.078 R)
• M6: 2,335,522 km (0.119 R)
• M7: 3,006,468 km (0.083 R)
• M8: 3,435,665 km (0.109 R)
• M9: 3,801,431 km (0.101 R)
• M10: 4,217,762 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.8

Radius: 10.2

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.67 AU - 0.79 AU

Year: 438 Days

Day: 14.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,748,035 km

• M1: 127,308 km (0.109 R)
• M2: 670,498 km (0.107 R)
• M3: 1,071,121 km (0.092 R)
• M4: 2,118,605 km (0.095 R)
• M5: 2,477,341 km (0.081 R)
• M6: 2,876,767 km (0.107 R)
• M7: 3,476,505 km (0.099 R)
• M8: 4,261,744 km (0.068 R)
• M9: 4,910,550 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.8

Radius: 12.7

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.7 AU - 1 AU

Year: 551 Days

Day: 9.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,748,035 km

• M1: 157,975 km (0.05 R)
• M2: 613,501 km (0.084 R)
• M3: 1,167,462 km (0.085 R)
• M4: 2,331,483 km (0.099 R)
• M5: 2,736,743 km (0.046 R)
• M6: 3,705,988 km (0.047 R)
• M7: 5,109,366 km (0.097 R)
• M8: 5,654,500 km (0.118 R)
• M9: 7,548,858 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.7

Radius: 9.6

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.75 AU - 0.99 AU

Year: 570 Days

Day: 9.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,748,035 km

• M1: 119,379 km (0.088 R)
• M2: 473,926 km (0.07 R)
• M3: 930,499 km (0.041 R)
• M4: 1,265,897 km (0.07 R)
• M5: 1,650,962 km (0.068 R)
• M6: 2,017,776 km (0.113 R)
• M7: 2,389,228 km (0.105 R)
• M8: 3,091,141 km (0.091 R)
• M9: 3,555,193 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.3

Radius: 14.9

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 2.15 AU - 2.31 AU

Year: 2341 Days

Day: 5.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 70,748,035 km

• M1: 185,501 km (0.078 R)
• M2: 874,998 km (0.053 R)
• M3: 1,678,339 km (0.042 R)
• M4: 2,914,316 km (0.063 R)
• M5: 3,885,655 km (0.107 R)
• M6: 5,343,636 km (0.085 R)
• M7: 6,825,552 km (0.066 R)
• M8: 7,775,349 km (0.038 R)
• M9: 11,304,812 km (0.026 R)
• M10: 12,399,569 km (0.069 R)
• M11: 13,481,461 km (0.046 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.5

Radius: 8.8

Gravity: 11.45 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.83 AU - 2.73 AU

Year: 2420 Days

Day: 11.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 70,748,035 km

• M1: 109,506 km (0.118 R)
• M2: 409,749 km (0.053 R)
• M3: 764,296 km (0.085 R)
• M4: 1,658,143 km (0.083 R)
• M5: 1,947,914 km (0.092 R)
• M6: 2,368,733 km (0.034 R)
• M7: 2,707,721 km (0.08 R)
• M8: 3,012,153 km (0.096 R)
• M9: 3,321,821 km (0.038 R)
• M10: 3,787,070 km (0.092 R)
• M11: 5,473,038 km (0.116 R)
• M12: 6,651,121 km (0.092 R)
• M13: 7,734,360 km (0.09 R)
• M14: 8,723,501 km (0.077 R)
• M15: 9,141,926 km (0.06 R)
• M16: 10,246,706 km (0.1 R)
• M17: 10,991,105 km (0.115 R)
• M18: 16,025,522 km (0.082 R)
• M19: 16,920,267 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388.2

Radius: 13.5

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.95 AU - 3.07 AU

Year: 3671 Days

Day: 12.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,748,035 km

• M1: 167,849 km (0.119 R)
• M2: 634,744 km (0.087 R)
• M3: 1,101,040 km (0.103 R)
• M4: 1,885,831 km (0.118 R)
• M5: 2,426,328 km (0.092 R)
• M6: 3,844,216 km (0.106 R)
• M7: 4,524,139 km (0.1 R)
• M8: 5,044,590 km (0.117 R)
• M9: 5,809,334 km (0.06 R)
• M10: 6,565,402 km (0.114 R)
• M11: 7,478,098 km (0.109 R)
• M12: 8,143,210 km (0.091 R)
• M13: 9,161,673 km (0.048 R)
• M14: 10,073,771 km (0.047 R)
• M15: 14,919,396 km (0.113 R)
• M16: 16,972,477 km (0.042 R)
• M17: 19,559,473 km (0.12 R)
• M18: 20,215,011 km (0.027 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 200.9

Radius: 3.2

Gravity: 19.62 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 5.01 AU - 7.95 AU

Year: 11595 Days

Day: 24.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 70,748,035 km

• M1: 39,793 km (0.05 R)
• M2: 495,468 km (0.095 R)
• M3: 904,918 km (0.103 R)
• M4: 1,016,518 km (0.088 R)
• M5: 1,571,077 km (0.079 R)
• M6: 1,747,004 km (0.043 R)
• M7: 2,603,901 km (0.088 R)
• M8: 3,479,497 km (0.116 R)
• M9: 5,266,743 km (0.114 R)
• M10: 6,541,765 km (0.063 R)
• M11: 7,250,410 km (0.087 R)
• M12: 7,472,713 km (0.12 R)
• M13: 12,605,715 km (0.1 R)
• M14: 13,419,079 km (0.119 R)
• M15: 17,349,912 km (0.103 R)
• M16: 19,397,758 km (0.097 R)
• M17: 20,333,193 km (0.089 R)
• M18: 23,479,535 km (0.116 R)
• M19: 25,041,636 km (0.117 R)
• M20: 25,463,951 km (0.071 R)
• M21: 26,759,469 km (0.06 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 791

Radius: 3.3

Gravity: 72.64 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 6.32 AU - 10.2 AU

Year: 16687 Days

Day: 23.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 70,748,035 km

• M1: 89,160 km (0.043 R)
• M2: 261,048 km (0.12 R)
• M3: 623,823 km (0.095 R)
• M4: 763,548 km (0.106 R)
• M5: 1,199,775 km (0.112 R)
• M6: 1,783,356 km (0.107 R)
• M7: 3,423,098 km (0.108 R)
• M8: 5,279,608 km (0.066 R)
• M9: 6,833,930 km (0.035 R)
• M10: 9,475,679 km (0.113 R)
• M11: 9,699,028 km (0.082 R)
• M12: 10,214,243 km (0.053 R)
• M13: 11,113,177 km (0.1 R)
• M14: 12,658,972 km (0.111 R)
• M15: 15,010,351 km (0.1 R)
• M16: 15,854,532 km (0.109 R)
• M17: 18,145,474 km (0.068 R)
• M18: 23,268,902 km (0.099 R)
• M19: 26,542,402 km (0.096 R)
• M20: 28,346,104 km (0.079 R)
• M21: 56,914,660 km (0.108 R)
• M22: 58,208,681 km (0.039 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 17,025 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit