🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.64

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.51 AU - 0.69 AU

Year: 178 Days

Day: 13.4 Hours

Environment

Temp: 107 °C

Axial Tilt: 28.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 3.2 AU - 3.91 AU

Year: 2561 Days

Day: 44.4 Hours

Environment

Temp: -127 °C

Axial Tilt: 31.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.04

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 2.82 AU - 4.36 AU

Year: 2604 Days

Day: 37.6 Hours

Environment

Temp: -127 °C

Axial Tilt: 38.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.36 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.5

Radius: 9.6

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 5.06 AU - 5.2 AU

Year: 4449 Days

Day: 9.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 177.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,270,448 km

• M1: 119,379 km (0.043 R)
• M2: 594,053 km (0.03 R)
• M3: 977,772 km (0.101 R)
• M4: 2,487,813 km (0.113 R)
• M5: 3,934,274 km (0.111 R)
• M6: 5,125,223 km (0.114 R)
• M7: 5,457,330 km (0.088 R)
• M8: 6,721,881 km (0.075 R)
• M9: 7,312,045 km (0.07 R)
• M10: 10,299,514 km (0.117 R)
• M11: 14,802,111 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 11.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 127.3

Radius: 12.3

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 9.56 AU - 12.64 AU

Year: 14160 Days

Day: 6.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 27,270,448 km

• M1: 199,863 km (0.082 R)
• M2: 1,166,115 km (0.063 R)
• M3: 1,650,663 km (0.087 R)
• M4: 2,678,999 km (0.077 R)
• M5: 3,387,494 km (0.1 R)
• M6: 6,183,478 km (0.114 R)
• M7: 11,482,684 km (0.092 R)
• M8: 12,652,090 km (0.089 R)
• M9: 14,639,648 km (0.055 R)
• M10: 18,199,927 km (0.055 R)
• M11: 19,575,330 km (0.11 R)
• M12: 24,524,327 km (0.065 R)
• M13: 28,311,696 km (0.116 R)
• M14: 29,223,794 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 929.7

Radius: 5.7

Gravity: 28.61 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 12.68 AU - 14.54 AU

Year: 19225 Days

Day: 15.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 27,270,448 km

• M1: 70,909 km (0.106 R)
• M2: 439,219 km (0.099 R)
• M3: 678,726 km (0.087 R)
• M4: 885,619 km (0.11 R)
• M5: 1,306,289 km (0.064 R)
• M6: 2,091,079 km (0.081 R)
• M7: 2,306,650 km (0.09 R)
• M8: 2,560,816 km (0.105 R)
• M9: 3,017,090 km (0.106 R)
• M10: 3,264,674 km (0.068 R)
• M11: 6,188,116 km (0.096 R)
• M12: 6,408,773 km (0.088 R)
• M13: 6,634,516 km (0.079 R)
• M14: 8,313,602 km (0.101 R)
• M15: 8,582,430 km (0.111 R)
• M16: 9,194,136 km (0.084 R)
• M17: 10,380,147 km (0.042 R)
• M18: 14,161,682 km (0.12 R)
• M19: 15,413,517 km (0.077 R)
• M20: 18,045,692 km (0.094 R)
• M21: 19,989,866 km (0.051 R)
• M22: 21,662,669 km (0.086 R)
• M23: 24,071,195 km (0.066 R)
• M24: 24,617,526 km (0.091 R)
• M25: 26,768,893 km (0.072 R)
• M26: 27,473,499 km (0.113 R)
• M27: 28,311,098 km (0.104 R)
• M28: 28,797,291 km (0.097 R)
• M29: 30,415,790 km (0.12 R)
• M30: 31,441,583 km (0.082 R)
• M31: 36,200,890 km (0.099 R)
• M32: 36,917,613 km (0.078 R)
• M33: 42,045,230 km (0.074 R)
• M34: 42,996,672 km (0.099 R)
• M35: 57,864,905 km (0.101 R)
• M36: 63,700,569 km (0.054 R)
• M37: 71,027,423 km (0.105 R)
• M38: 71,924,562 km (0.067 R)
• M39: 75,589,111 km (0.107 R)
• M40: 82,051,889 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 939.2

Radius: 4

Gravity: 58.7 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 11.12 AU - 16.9 AU

Year: 20078 Days

Day: 19.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 27,270,448 km

• M1: 49,816 km (0.07 R)
• M2: 196,123 km (0.079 R)
• M3: 423,362 km (0.07 R)
• M4: 1,027,438 km (0.096 R)
• M5: 1,773,034 km (0.053 R)
• M6: 1,909,018 km (0.115 R)
• M7: 2,202,230 km (0.091 R)
• M8: 2,799,275 km (0.112 R)
• M9: 3,262,730 km (0.06 R)
• M10: 3,650,188 km (0.063 R)
• M11: 3,839,130 km (0.107 R)
• M12: 4,034,505 km (0.111 R)
• M13: 4,588,167 km (0.111 R)
• M14: 4,883,323 km (0.079 R)
• M15: 6,460,534 km (0.109 R)
• M16: 8,787,529 km (0.087 R)
• M17: 9,475,529 km (0.078 R)
• M18: 10,637,306 km (0.113 R)
• M19: 12,731,228 km (0.105 R)
• M20: 14,451,454 km (0.113 R)
• M21: 21,634,844 km (0.119 R)
• M22: 21,839,793 km (0.077 R)
• M23: 26,799,860 km (0.056 R)
• M24: 27,874,571 km (0.045 R)
• M25: 28,977,706 km (0.107 R)
• M26: 32,864,408 km (0.076 R)
• M27: 44,399,451 km (0.112 R)
• M28: 47,093,410 km (0.107 R)
• M29: 48,831,288 km (0.035 R)
• M30: 53,549,007 km (0.078 R)
• M31: 53,736,303 km (0.09 R)
• M32: 54,112,093 km (0.09 R)
• M33: 55,825,288 km (0.118 R)
• M34: 61,180,892 km (0.064 R)
• M35: 76,638,540 km (0.075 R)
• M36: 76,876,401 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 25.7

Radius: 3.1

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 14.02 AU - 15.9 AU

Year: 22155 Days

Day: 24.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,270,448 km

• M1: 41,139 km (0.081 R)
• M2: 365,617 km (0.113 R)
• M3: 592,557 km (0.113 R)
• M4: 766,539 km (0.096 R)
• M5: 1,080,845 km (0.114 R)
• M6: 1,429,108 km (0.099 R)
• M7: 1,666,371 km (0.102 R)
• M8: 3,714,964 km (0.116 R)
• M9: 4,374,391 km (0.103 R)
• M10: 5,324,338 km (0.066 R)
• M11: 7,832,047 km (0.101 R)
• M12: 14,403,732 km (0.036 R)
• M13: 14,726,115 km (0.108 R)
• M14: 15,108,338 km (0.1 R)
• M15: 18,344,439 km (0.043 R)
• M16: 19,561,567 km (0.116 R)
• M17: 22,946,967 km (0.104 R)
• M18: 25,984,103 km (0.116 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 475 - 11,833 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit