🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.6

Radius: 11.9

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.54 AU - 0.78 AU

Year: 377 Days

Day: 13.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 29,388,375 km

• M1: 147,952 km (0.069 R)
• M2: 541,395 km (0.086 R)
• M3: 988,094 km (0.113 R)
• M4: 1,620,444 km (0.119 R)
• M5: 1,999,824 km (0.095 R)
• M6: 2,387,283 km (0.107 R)
• M7: 2,787,008 km (0.07 R)
• M8: 3,607,403 km (0.103 R)
• M9: 4,074,747 km (0.116 R)
• M10: 4,650,399 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.6

Radius: 12.3

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.69 AU - 0.99 AU

Year: 541 Days

Day: 11.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 29,388,375 km

• M1: 154,086 km (0.096 R)
• M2: 672,442 km (0.09 R)
• M3: 1,419,235 km (0.113 R)
• M4: 1,889,272 km (0.046 R)
• M5: 2,463,129 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.2

Radius: 9.5

Gravity: 8.27 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.99 AU - 1.11 AU

Year: 756 Days

Day: 5.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 113.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 29,388,375 km

• M1: 120,277 km (0.043 R)
• M2: 436,527 km (0.117 R)
• M3: 1,212,491 km (0.117 R)
• M4: 1,573,919 km (0.036 R)
• M5: 1,923,679 km (0.109 R)
• M6: 2,314,877 km (0.111 R)
• M7: 2,952,164 km (0.086 R)
• M8: 3,259,139 km (0.112 R)
• M9: 4,153,136 km (0.084 R)
• M10: 4,742,851 km (0.079 R)
• M11: 5,368,619 km (0.109 R)
• M12: 6,377,806 km (0.06 R)
• M13: 7,005,519 km (0.095 R)
• M14: 7,438,605 km (0.103 R)
• M15: 7,841,322 km (0.072 R)
• M16: 8,510,772 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.6

Radius: 11.6

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2.31 AU - 2.73 AU

Year: 2812 Days

Day: 13.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 29,388,375 km

• M1: 144,362 km (0.093 R)
• M2: 521,199 km (0.046 R)
• M3: 958,025 km (0.107 R)
• M4: 1,950,607 km (0.073 R)
• M5: 3,428,634 km (0.12 R)
• M6: 4,032,859 km (0.098 R)
• M7: 5,014,820 km (0.072 R)
• M8: 5,550,231 km (0.078 R)
• M9: 6,046,746 km (0.08 R)
• M10: 6,819,120 km (0.116 R)
• M11: 7,243,828 km (0.111 R)
• M12: 8,022,036 km (0.045 R)
• M13: 8,756,263 km (0.106 R)
• M14: 9,122,777 km (0.107 R)
• M15: 10,358,456 km (0.072 R)
• M16: 11,863,111 km (0.077 R)
• M17: 13,421,023 km (0.088 R)
• M18: 15,111,031 km (0.101 R)
• M19: 15,639,859 km (0.053 R)
• M20: 16,230,621 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.6

Radius: 12.8

Gravity: 5.94 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.37 AU - 3.45 AU

Year: 3489 Days

Day: 12.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 29,388,375 km

• M1: 159,322 km (0.118 R)
• M2: 625,768 km (0.053 R)
• M3: 1,896,452 km (0.074 R)
• M4: 2,561,864 km (0.116 R)
• M5: 2,985,973 km (0.117 R)
• M6: 5,074,809 km (0.106 R)
• M7: 5,666,169 km (0.049 R)
• M8: 6,333,375 km (0.103 R)
• M9: 8,178,067 km (0.066 R)
• M10: 10,958,642 km (0.118 R)
• M11: 11,537,137 km (0.111 R)
• M12: 13,295,660 km (0.111 R)
• M13: 16,749,277 km (0.1 R)
• M14: 17,397,784 km (0.069 R)
• M15: 17,819,201 km (0.119 R)
• M16: 18,309,283 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.1

Radius: 14.8

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 2.64 AU - 3.18 AU

Year: 3489 Days

Day: 14.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 29,388,375 km

• M1: 184,005 km (0.108 R)
• M2: 664,215 km (0.091 R)
• M3: 1,208,152 km (0.09 R)
• M4: 2,106,488 km (0.093 R)
• M5: 2,683,935 km (0.057 R)
• M6: 3,248,069 km (0.099 R)
• M7: 3,796,944 km (0.12 R)
• M8: 5,038,157 km (0.074 R)
• M9: 6,589,936 km (0.11 R)
• M10: 9,558,406 km (0.117 R)
• M11: 12,674,081 km (0.12 R)
• M12: 13,237,766 km (0.092 R)
• M13: 14,415,550 km (0.105 R)
• M14: 15,612,931 km (0.114 R)
• M15: 16,362,566 km (0.092 R)
• M16: 17,083,778 km (0.096 R)
• M17: 17,665,265 km (0.049 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.8

Radius: 14

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 2.43 AU - 3.95 AU

Year: 4005 Days

Day: 5.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 29,388,375 km

• M1: 174,282 km (0.072 R)
• M2: 750,533 km (0.086 R)
• M3: 1,722,320 km (0.103 R)
• M4: 2,307,098 km (0.107 R)
• M5: 2,779,528 km (0.048 R)
• M6: 4,212,078 km (0.118 R)
• M7: 4,694,531 km (0.086 R)
• M8: 5,213,785 km (0.029 R)
• M9: 8,378,378 km (0.064 R)
• M10: 9,846,083 km (0.056 R)
• M11: 10,661,391 km (0.097 R)
• M12: 13,286,834 km (0.083 R)
• M13: 16,211,173 km (0.091 R)
• M14: 16,963,651 km (0.099 R)
• M15: 18,250,342 km (0.103 R)
• M16: 19,242,475 km (0.114 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23.7

Radius: 9.6

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.49 AU - 3.51 AU

Year: 4603 Days

Day: 6 Hours

Environment

Temp: -220 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 29,388,375 km

• M1: 119,379 km (0.096 R)
• M2: 477,516 km (0.103 R)
• M3: 962,513 km (0.112 R)
• M4: 1,317,209 km (0.114 R)
• M5: 3,231,763 km (0.12 R)
• M6: 5,022,300 km (0.079 R)
• M7: 5,413,049 km (0.104 R)
• M8: 6,172,109 km (0.095 R)
• M9: 8,074,844 km (0.108 R)
• M10: 8,560,289 km (0.077 R)
• M11: 9,228,393 km (0.055 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.8

Radius: 11.3

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.13 AU - 5.29 AU

Year: 7185 Days

Day: 5 Hours

Environment

Temp: -216 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 29,388,375 km

• M1: 144,661 km (0.104 R)
• M2: 697,276 km (0.06 R)
• M3: 1,117,047 km (0.115 R)
• M4: 2,215,844 km (0.105 R)
• M5: 2,968,919 km (0.113 R)
• M6: 3,818,486 km (0.107 R)
• M7: 4,619,283 km (0.1 R)
• M8: 7,879,769 km (0.063 R)
• M9: 8,435,076 km (0.097 R)
• M10: 8,858,588 km (0.087 R)
• M11: 9,459,223 km (0.079 R)
• M12: 10,345,441 km (0.061 R)
• M13: 12,828,167 km (0.099 R)
• M14: 14,127,125 km (0.097 R)
• M15: 14,725,816 km (0.061 R)
• M16: 16,325,915 km (0.036 R)
• M17: 17,168,151 km (0.116 R)
• M18: 18,229,398 km (0.045 R)
• M19: 19,868,991 km (0.104 R)
• M20: 22,399,588 km (0.112 R)
• M21: 24,901,463 km (0.057 R)
• M22: 25,535,010 km (0.099 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 522 - 14,021 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit