🌌 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: 3.69

Radius: 1.69

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.62 AU - 0.62 AU

Year: 177 Days

Day: 23 Hours

Environment

Temp: 217 °C

Axial Tilt: 37.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 91,068,096 km

• M1: 320,139 km (0.119 R)
• M2: 540,048 km (0.027 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.12 AU - 1.12 AU

Year: 429 Days

Day: 17.7 Hours

Environment

Temp: 28 °C

Axial Tilt: 16 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.32 AU - 1.74 AU

Year: 684 Days

Day: 28.9 Hours

Environment

Temp: -40 °C

Axial Tilt: 14.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.4

Radius: 10.6

Gravity: 6.3 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 4.22 AU - 7.03 AU

Year: 4818 Days

Day: 13.1 Hours

Environment

Temp: -145 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 91,068,096 km

• M1: 133,292 km (0.1 R)
• M2: 578,794 km (0.049 R)
• M3: 908,807 km (0.097 R)
• M4: 1,287,290 km (0.073 R)
• M5: 1,634,207 km (0.087 R)
• M6: 2,251,747 km (0.117 R)
• M7: 2,889,034 km (0.108 R)
• M8: 3,773,008 km (0.117 R)
• M9: 4,906,661 km (0.099 R)
• M10: 6,039,416 km (0.097 R)
• M11: 14,369,923 km (0.059 R)
• M12: 15,317,625 km (0.094 R)
• M13: 15,719,744 km (0.119 R)
• M14: 16,545,076 km (0.066 R)
• M15: 18,735,039 km (0.049 R)
• M16: 19,461,486 km (0.08 R)
• M17: 22,335,411 km (0.105 R)
• M18: 23,302,860 km (0.119 R)
• M19: 24,453,567 km (0.074 R)
• M20: 25,481,005 km (0.054 R)
• M21: 29,613,946 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.6

Radius: 11.6

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 5.12 AU - 7.3 AU

Year: 5597 Days

Day: 11.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 91,068,096 km

• M1: 191,036 km (0.099 R)
• M2: 574,157 km (0.045 R)
• M3: 998,715 km (0.08 R)
• M4: 1,362,238 km (0.085 R)
• M5: 1,994,439 km (0.103 R)
• M6: 2,468,963 km (0.116 R)
• M7: 2,924,638 km (0.107 R)
• M8: 3,353,685 km (0.085 R)
• M9: 4,170,938 km (0.087 R)
• M10: 5,171,449 km (0.062 R)
• M11: 6,262,017 km (0.119 R)
• M12: 6,812,089 km (0.103 R)
• M13: 7,934,821 km (0.034 R)
• M14: 10,589,584 km (0.056 R)
• M15: 12,742,896 km (0.118 R)
• M16: 14,112,315 km (0.109 R)
• M17: 16,107,652 km (0.08 R)
• M18: 19,545,111 km (0.116 R)
• M19: 24,770,864 km (0.036 R)
• M20: 25,737,566 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 372.2

Radius: 4.7

Gravity: 16.85 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 13.35 AU - 17.49 AU

Year: 21899 Days

Day: 15.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 161 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 91,068,096 km

• M1: 58,493 km (0.047 R)
• M2: 285,283 km (0.116 R)
• M3: 1,399,338 km (0.115 R)
• M4: 2,405,235 km (0.105 R)
• M5: 3,703,146 km (0.106 R)
• M6: 4,213,125 km (0.109 R)
• M7: 4,940,918 km (0.081 R)
• M8: 7,530,308 km (0.072 R)
• M9: 10,037,120 km (0.107 R)
• M10: 10,493,094 km (0.092 R)
• M11: 11,881,362 km (0.085 R)
• M12: 12,783,886 km (0.045 R)
• M13: 16,536,698 km (0.094 R)
• M14: 20,688,338 km (0.109 R)
• M15: 21,613,302 km (0.034 R)
• M16: 22,856,610 km (0.074 R)
• M17: 30,144,121 km (0.081 R)
• M18: 33,799,395 km (0.051 R)
• M19: 36,261,028 km (0.047 R)
• M20: 38,424,512 km (0.103 R)
• M21: 43,904,581 km (0.038 R)
• M22: 46,673,040 km (0.039 R)
• M23: 49,229,518 km (0.059 R)
• M24: 54,098,480 km (0.117 R)
• M25: 55,144,468 km (0.088 R)
• M26: 59,094,749 km (0.045 R)
• M27: 61,327,049 km (0.1 R)
• M28: 61,704,484 km (0.069 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 562.7

Radius: 7.3

Gravity: 10.56 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 15.53 AU - 21.57 AU

Year: 28894 Days

Day: 18.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 91,068,096 km

• M1: 90,806 km (0.062 R)
• M2: 329,863 km (0.11 R)
• M3: 734,675 km (0.106 R)
• M4: 1,059,452 km (0.092 R)
• M5: 1,941,780 km (0.12 R)
• M6: 4,126,657 km (0.116 R)
• M7: 4,514,714 km (0.066 R)
• M8: 5,612,912 km (0.097 R)
• M9: 9,356,599 km (0.11 R)
• M10: 9,779,512 km (0.116 R)
• M11: 12,301,583 km (0.06 R)
• M12: 14,022,108 km (0.103 R)
• M13: 17,117,138 km (0.097 R)
• M14: 19,939,003 km (0.101 R)
• M15: 32,652,578 km (0.114 R)
• M16: 33,067,113 km (0.057 R)
• M17: 33,625,113 km (0.079 R)
• M18: 36,658,809 km (0.063 R)
• M19: 37,709,285 km (0.088 R)
• M20: 46,671,095 km (0.092 R)
• M21: 48,798,825 km (0.085 R)
• M22: 50,620,628 km (0.097 R)
• M23: 52,487,311 km (0.1 R)
• M24: 54,593,200 km (0.051 R)
• M25: 57,153,717 km (0.042 R)
• M26: 68,197,630 km (0.111 R)
• M27: 71,165,053 km (0.046 R)
• M28: 74,694,516 km (0.092 R)
• M29: 75,173,828 km (0.086 R)
• M30: 78,339,019 km (0.044 R)
• M31: 84,413,890 km (0.11 R)
• M32: 86,770,655 km (0.062 R)
• M33: 88,902,125 km (0.088 R)

Kuiper Belt

Range: 30.3 - 55.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 287 - 20,006 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit