🌌 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: 3.39

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.49 AU - 0.75 AU

Year: 172 Days

Day: 44.1 Hours

Environment

Temp: 208 °C

Axial Tilt: 33.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 75,921,322 km

• M1: 44,879 km (0.106 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.61 AU - 1.97 AU

Year: 842 Days

Day: 27.6 Hours

Environment

Temp: -38 °C

Axial Tilt: 46.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.02

Radius: 1.01

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.79 AU - 2.25 AU

Year: 1009 Days

Day: 15.7 Hours

Environment

Temp: -53 °C

Axial Tilt: 29.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.78 AU - 2.96 AU

Year: 1709 Days

Day: 40.9 Hours

Environment

Temp: -80 °C

Axial Tilt: 32.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,921,322 km

• M1: 63,878 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 246

Radius: 8.6

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 5.75 AU - 8.47 AU

Year: 6663 Days

Day: 13.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 75,921,322 km

• M1: 107,411 km (0.098 R)
• M2: 375,191 km (0.068 R)
• M3: 834,158 km (0.119 R)
• M4: 1,142,329 km (0.067 R)
• M5: 1,943,725 km (0.103 R)
• M6: 4,677,177 km (0.118 R)
• M7: 6,127,978 km (0.083 R)
• M8: 7,616,626 km (0.09 R)
• M9: 11,114,673 km (0.101 R)
• M10: 14,854,171 km (0.114 R)
• M11: 17,566,979 km (0.027 R)
• M12: 19,293,338 km (0.101 R)
• M13: 20,593,643 km (0.054 R)
• M14: 20,994,864 km (0.105 R)
• M15: 22,581,499 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388.3

Radius: 12.7

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 11.17 AU - 11.31 AU

Year: 13244 Days

Day: 8.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 75,921,322 km

• M1: 168,298 km (0.11 R)
• M2: 730,636 km (0.075 R)
• M3: 1,204,712 km (0.073 R)
• M4: 1,606,232 km (0.105 R)
• M5: 2,774,442 km (0.118 R)
• M6: 3,690,729 km (0.087 R)
• M7: 4,679,272 km (0.094 R)
• M8: 5,464,511 km (0.03 R)
• M9: 6,190,210 km (0.11 R)
• M10: 7,176,958 km (0.062 R)
• M11: 8,091,450 km (0.091 R)
• M12: 8,577,044 km (0.086 R)
• M13: 9,413,596 km (0.113 R)
• M14: 12,024,527 km (0.082 R)
• M15: 13,557,756 km (0.093 R)
• M16: 17,808,131 km (0.09 R)
• M17: 19,014,488 km (0.067 R)
• M18: 19,716,700 km (0.06 R)
• M19: 20,274,700 km (0.108 R)
• M20: 21,673,889 km (0.085 R)
• M21: 22,786,598 km (0.112 R)
• M22: 23,401,296 km (0.116 R)
• M23: 24,207,927 km (0.1 R)
• M24: 29,338,835 km (0.094 R)
• M25: 31,558,120 km (0.116 R)
• M26: 44,763,722 km (0.088 R)
• M27: 45,313,345 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 248.8

Radius: 7.9

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 14.87 AU - 15.21 AU

Year: 20500 Days

Day: 15.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 75,921,322 km

• M1: 98,286 km (0.035 R)
• M2: 373,695 km (0.081 R)
• M3: 804,089 km (0.115 R)
• M4: 1,077,703 km (0.025 R)
• M5: 1,937,592 km (0.112 R)
• M6: 2,542,117 km (0.105 R)
• M7: 2,821,416 km (0.055 R)
• M8: 3,242,085 km (0.076 R)
• M9: 3,624,008 km (0.104 R)
• M10: 4,064,275 km (0.048 R)
• M11: 4,447,844 km (0.098 R)
• M12: 4,791,171 km (0.079 R)
• M13: 6,383,192 km (0.095 R)
• M14: 6,984,575 km (0.09 R)
• M15: 8,024,579 km (0.063 R)
• M16: 8,967,345 km (0.027 R)
• M17: 14,137,597 km (0.073 R)
• M18: 14,472,397 km (0.04 R)
• M19: 14,744,067 km (0.061 R)
• M20: 16,372,589 km (0.087 R)
• M21: 16,891,096 km (0.106 R)
• M22: 18,592,323 km (0.066 R)
• M23: 21,617,790 km (0.025 R)
• M24: 25,347,115 km (0.107 R)
• M25: 28,836,934 km (0.067 R)
• M26: 30,808,185 km (0.083 R)
• M27: 33,573,951 km (0.07 R)
• M28: 35,016,972 km (0.103 R)
• M29: 36,250,855 km (0.114 R)
• M30: 37,513,312 km (0.111 R)
• M31: 38,935,539 km (0.093 R)
• M32: 40,797,434 km (0.12 R)
• M33: 42,439,719 km (0.114 R)
• M34: 49,297,435 km (0.111 R)
• M35: 50,222,848 km (0.072 R)
• M36: 54,203,497 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 245.8

Radius: 6.6

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 13.79 AU - 16.51 AU

Year: 20725 Days

Day: 19.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 75,921,322 km

• M1: 86,168 km (0.071 R)
• M2: 317,147 km (0.09 R)
• M3: 1,472,791 km (0.12 R)
• M4: 1,810,134 km (0.097 R)
• M5: 2,087,040 km (0.067 R)
• M6: 3,920,362 km (0.119 R)
• M7: 4,508,431 km (0.087 R)
• M8: 5,785,548 km (0.115 R)
• M9: 8,836,148 km (0.038 R)
• M10: 9,533,424 km (0.11 R)
• M11: 11,845,758 km (0.119 R)
• M12: 13,004,992 km (0.092 R)
• M13: 25,028,322 km (0.102 R)
• M14: 27,444,029 km (0.046 R)
• M15: 33,557,794 km (0.071 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 524.1

Radius: 8

Gravity: 8.19 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 15.38 AU - 16.9 AU

Year: 22789 Days

Day: 17.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 75,921,322 km

• M1: 99,483 km (0.106 R)
• M2: 527,033 km (0.087 R)
• M3: 2,065,947 km (0.065 R)
• M4: 2,584,004 km (0.09 R)
• M5: 3,378,369 km (0.098 R)
• M6: 17,650,454 km (0.064 R)
• M7: 19,513,546 km (0.065 R)
• M8: 20,069,003 km (0.087 R)
• M9: 22,599,002 km (0.105 R)
• M10: 25,443,307 km (0.046 R)
• M11: 28,047,506 km (0.117 R)
• M12: 28,517,992 km (0.076 R)
• M13: 30,824,342 km (0.096 R)
• M14: 31,451,307 km (0.098 R)
• M15: 34,579,997 km (0.085 R)
• M16: 49,342,913 km (0.062 R)
• M17: 61,679,352 km (0.044 R)

Kuiper Belt

Range: 31.2 - 59.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 480 - 11,470 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit