🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304.3

Radius: 10.9

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.51 AU - 0.59 AU

Year: 272 Days

Day: 5.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 79,638,154 km

• M1: 135,685 km (0.082 R)
• M2: 539,300 km (0.089 R)
• M3: 898,934 km (0.034 R)
• M4: 1,295,069 km (0.111 R)
• M5: 1,859,202 km (0.108 R)
• M6: 2,703,682 km (0.114 R)
• M7: 3,112,234 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.9

Radius: 13.9

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.55 AU - 0.69 AU

Year: 326 Days

Day: 6.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 79,638,154 km

• M1: 172,935 km (0.092 R)
• M2: 654,790 km (0.108 R)
• M3: 1,966,913 km (0.118 R)
• M4: 2,569,792 km (0.059 R)
• M5: 3,534,998 km (0.07 R)
• M6: 4,702,310 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559

Radius: 11.9

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.79 AU - 1.01 AU

Year: 569 Days

Day: 14.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 79,638,154 km

• M1: 147,952 km (0.106 R)
• M2: 559,646 km (0.094 R)
• M3: 1,197,232 km (0.078 R)
• M4: 1,590,375 km (0.091 R)
• M5: 2,448,169 km (0.092 R)
• M6: 2,970,715 km (0.102 R)
• M7: 3,529,014 km (0.114 R)
• M8: 4,030,765 km (0.074 R)
• M9: 4,490,030 km (0.068 R)
• M10: 5,178,480 km (0.07 R)
• M11: 5,793,178 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.3

Radius: 12.8

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.99 AU - 1.53 AU

Year: 943 Days

Day: 7.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 79,638,154 km

• M1: 159,172 km (0.109 R)
• M2: 672,143 km (0.119 R)
• M3: 1,143,227 km (0.085 R)
• M4: 2,857,319 km (0.117 R)
• M5: 3,750,419 km (0.059 R)
• M6: 4,192,630 km (0.102 R)
• M7: 4,699,916 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.6

Radius: 8.9

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.35 AU - 1.39 AU

Year: 1069 Days

Day: 8.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,638,154 km

• M1: 110,852 km (0.099 R)
• M2: 559,496 km (0.049 R)
• M3: 880,533 km (0.096 R)
• M4: 1,191,996 km (0.105 R)
• M5: 1,614,311 km (0.083 R)
• M6: 2,327,892 km (0.095 R)
• M7: 2,687,825 km (0.095 R)
• M8: 3,154,720 km (0.108 R)
• M9: 4,279,845 km (0.091 R)
• M10: 5,360,541 km (0.043 R)
• M11: 5,901,486 km (0.116 R)
• M12: 6,213,248 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.1

Radius: 13.9

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.27 AU - 2.27 AU

Year: 2281 Days

Day: 13.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 79,638,154 km

• M1: 172,935 km (0.102 R)
• M2: 636,240 km (0.048 R)
• M3: 1,083,388 km (0.1 R)
• M4: 1,741,918 km (0.109 R)
• M5: 2,215,544 km (0.101 R)
• M6: 3,842,272 km (0.1 R)
• M7: 4,449,340 km (0.077 R)
• M8: 6,637,508 km (0.111 R)
• M9: 7,967,283 km (0.113 R)
• M10: 8,598,138 km (0.073 R)
• M11: 9,092,858 km (0.12 R)
• M12: 9,606,726 km (0.116 R)
• M13: 11,699,002 km (0.113 R)
• M14: 13,676,985 km (0.111 R)
• M15: 14,398,645 km (0.105 R)
• M16: 15,577,028 km (0.076 R)
• M17: 16,615,686 km (0.091 R)
• M18: 17,700,121 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 314.4

Radius: 6.5

Gravity: 7.44 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 6.59 AU - 8.55 AU

Year: 13889 Days

Day: 19.1 Hours

Environment

Temp: -239 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 79,638,154 km

• M1: 80,932 km (0.098 R)
• M2: 488,437 km (0.107 R)
• M3: 869,912 km (0.098 R)
• M4: 1,321,398 km (0.111 R)
• M5: 1,967,511 km (0.054 R)
• M6: 2,427,076 km (0.051 R)
• M7: 2,682,439 km (0.104 R)
• M8: 2,890,979 km (0.091 R)
• M9: 4,267,728 km (0.086 R)
• M10: 4,523,989 km (0.04 R)
• M11: 5,193,888 km (0.084 R)
• M12: 8,545,030 km (0.107 R)
• M13: 9,045,435 km (0.034 R)
• M14: 10,104,738 km (0.032 R)
• M15: 10,820,564 km (0.031 R)
• M16: 11,352,085 km (0.103 R)
• M17: 11,734,457 km (0.104 R)
• M18: 14,023,903 km (0.093 R)
• M19: 14,274,330 km (0.076 R)
• M20: 14,784,309 km (0.118 R)
• M21: 17,735,276 km (0.064 R)
• M22: 18,175,992 km (0.102 R)
• M23: 18,548,790 km (0.031 R)
• M24: 19,541,970 km (0.089 R)
• M25: 21,138,628 km (0.112 R)
• M26: 21,468,042 km (0.054 R)
• M27: 21,800,898 km (0.112 R)
• M28: 25,414,135 km (0.114 R)
• M29: 33,799,395 km (0.077 R)
• M30: 34,476,774 km (0.11 R)
• M31: 35,393,959 km (0.069 R)
• M32: 37,999,954 km (0.098 R)
• M33: 43,060,849 km (0.076 R)
• M34: 45,068,902 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 769.3

Radius: 7.7

Gravity: 12.98 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 8.07 AU - 11.37 AU

Year: 20208 Days

Day: 15.9 Hours

Environment

Temp: -244 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 79,638,154 km

• M1: 97,538 km (0.062 R)
• M2: 479,760 km (0.085 R)
• M3: 942,766 km (0.083 R)
• M4: 1,195,287 km (0.039 R)
• M5: 1,493,735 km (0.098 R)
• M6: 1,860,698 km (0.112 R)
• M7: 2,751,404 km (0.075 R)
• M8: 3,167,286 km (0.089 R)
• M9: 3,476,954 km (0.095 R)
• M10: 4,157,624 km (0.106 R)
• M11: 17,191,189 km (0.12 R)
• M12: 19,515,341 km (0.074 R)
• M13: 20,849,754 km (0.104 R)
• M14: 33,251,568 km (0.102 R)
• M15: 41,281,383 km (0.108 R)
• M16: 45,741,643 km (0.086 R)
• M17: 47,917,544 km (0.099 R)
• M18: 54,857,988 km (0.086 R)
• M19: 60,234,386 km (0.073 R)
• M20: 70,030,802 km (0.103 R)
• M21: 73,593,775 km (0.049 R)
• M22: 75,649,998 km (0.092 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 217 - 15,850 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit