🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.52 AU - 0.72 AU

Year: 187 Days

Day: 12.6 Hours

Environment

Temp: 109 °C

Axial Tilt: 7.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.03 AU - 1.25 AU

Year: 466 Days

Day: 31.3 Hours

Environment

Temp: -13 °C

Axial Tilt: 34.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 2.69 AU - 3.55 AU

Year: 2110 Days

Day: 28.5 Hours

Environment

Temp: -117 °C

Axial Tilt: 0.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.8 AU - 3.78 AU

Year: 2285 Days

Day: 29 Hours

Environment

Temp: -126 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,006,927 km

• M1: 155,881 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.8

Radius: 10.4

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 5.51 AU - 8.27 AU

Year: 6925 Days

Day: 11 Hours

Environment

Temp: -162 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 46,006,927 km

• M1: 129,402 km (0.08 R)
• M2: 462,856 km (0.112 R)
• M3: 1,350,420 km (0.068 R)
• M4: 1,774,979 km (0.071 R)
• M5: 2,449,665 km (0.066 R)
• M6: 2,948,873 km (0.079 R)
• M7: 3,343,363 km (0.113 R)
• M8: 3,752,812 km (0.051 R)
• M9: 4,173,781 km (0.038 R)
• M10: 4,673,138 km (0.027 R)
• M11: 5,036,063 km (0.032 R)
• M12: 5,791,682 km (0.1 R)
• M13: 7,080,467 km (0.079 R)
• M14: 8,339,483 km (0.103 R)
• M15: 8,911,994 km (0.1 R)
• M16: 10,997,837 km (0.071 R)
• M17: 11,338,771 km (0.041 R)
• M18: 11,730,717 km (0.096 R)
• M19: 12,588,062 km (0.076 R)
• M20: 13,486,697 km (0.075 R)
• M21: 15,253,148 km (0.111 R)
• M22: 15,624,151 km (0.053 R)
• M23: 16,439,460 km (0.048 R)
• M24: 16,885,860 km (0.119 R)
• M25: 19,424,835 km (0.06 R)
• M26: 21,077,891 km (0.096 R)
• M27: 22,411,855 km (0.096 R)
• M28: 23,099,557 km (0.081 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 822.5

Radius: 4.3

Gravity: 44.48 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 11.93 AU - 12.21 AU

Year: 16056 Days

Day: 18.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 46,006,927 km

• M1: 53,706 km (0.034 R)
• M2: 266,284 km (0.101 R)
• M3: 488,287 km (0.1 R)
• M4: 776,712 km (0.091 R)
• M5: 913,893 km (0.093 R)
• M6: 1,382,135 km (0.106 R)
• M7: 1,957,039 km (0.118 R)
• M8: 2,539,274 km (0.078 R)
• M9: 6,246,160 km (0.115 R)
• M10: 6,585,298 km (0.09 R)
• M11: 7,300,526 km (0.097 R)
• M12: 7,534,347 km (0.114 R)
• M13: 7,676,914 km (0.076 R)
• M14: 8,417,423 km (0.065 R)
• M15: 8,936,827 km (0.074 R)
• M16: 9,422,123 km (0.108 R)
• M17: 9,587,877 km (0.089 R)
• M18: 10,269,894 km (0.119 R)
• M19: 11,922,053 km (0.045 R)
• M20: 14,683,031 km (0.102 R)
• M21: 15,282,021 km (0.098 R)
• M22: 16,369,448 km (0.103 R)
• M23: 21,047,373 km (0.093 R)
• M24: 21,236,016 km (0.108 R)
• M25: 23,184,080 km (0.097 R)
• M26: 24,825,916 km (0.105 R)
• M27: 25,782,744 km (0.073 R)
• M28: 27,769,554 km (0.062 R)
• M29: 28,224,481 km (0.103 R)
• M30: 29,383,715 km (0.069 R)
• M31: 39,677,694 km (0.084 R)
• M32: 46,976,125 km (0.1 R)
• M33: 48,930,920 km (0.116 R)
• M34: 52,654,411 km (0.093 R)
• M35: 54,407,698 km (0.07 R)
• M36: 54,941,164 km (0.114 R)
• M37: 57,109,885 km (0.105 R)
• M38: 62,780,093 km (0.071 R)
• M39: 64,551,481 km (0.06 R)
• M40: 66,761,491 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 97

Radius: 6.2

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 16.18 AU - 16.24 AU

Year: 24989 Days

Day: 20 Hours

Environment

Temp: -200 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 46,006,927 km

• M1: 77,940 km (0.052 R)
• M2: 444,605 km (0.066 R)
• M3: 903,122 km (0.099 R)
• M4: 1,582,147 km (0.058 R)
• M5: 2,950,968 km (0.11 R)
• M6: 3,578,082 km (0.096 R)
• M7: 3,780,039 km (0.108 R)
• M8: 4,695,129 km (0.093 R)
• M9: 5,188,353 km (0.119 R)
• M10: 8,057,042 km (0.103 R)
• M11: 8,992,328 km (0.03 R)
• M12: 9,558,107 km (0.068 R)
• M13: 14,265,503 km (0.092 R)
• M14: 25,124,364 km (0.114 R)
• M15: 29,393,139 km (0.045 R)
• M16: 32,456,156 km (0.089 R)
• M17: 36,428,428 km (0.097 R)
• M18: 39,331,973 km (0.105 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: 480 - 18,570 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit