🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.54 AU - 0.54 AU

Year: 144 Days

Day: 17.4 Hours

Environment

Temp: 258 °C

Axial Tilt: 32.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 105,466,409 km

• M1: 261,796 km (0.096 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.37

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.51 AU - 0.57 AU

Year: 144 Days

Day: 25.2 Hours

Environment

Temp: 166 °C

Axial Tilt: 3.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.15

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.01 AU - 1.43 AU

Year: 487 Days

Day: 12.2 Hours

Environment

Temp: 9 °C

Axial Tilt: 16.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.9

Radius: 1.72

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.42 AU - 3.36 AU

Year: 1777 Days

Day: 36 Hours

Environment

Temp: -90 °C

Axial Tilt: 35.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 2.54 AU - 3.76 AU

Year: 2022 Days

Day: 27.3 Hours

Environment

Temp: -106 °C

Axial Tilt: 7.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.75

Radius: 0.89

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 4.2 AU - 4.48 AU

Year: 3270 Days

Day: 32.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 15.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.35 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.1

Radius: 11.7

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 5.21 AU - 7.49 AU

Year: 5787 Days

Day: 11.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 105,466,409 km

• M1: 145,559 km (0.032 R)
• M2: 522,545 km (0.12 R)
• M3: 893,698 km (0.115 R)
• M4: 2,299,469 km (0.105 R)
• M5: 2,909,230 km (0.035 R)
• M6: 5,119,688 km (0.058 R)
• M7: 6,037,172 km (0.112 R)
• M8: 6,922,941 km (0.087 R)
• M9: 9,579,649 km (0.072 R)
• M10: 10,281,413 km (0.072 R)
• M11: 11,254,248 km (0.111 R)
• M12: 11,640,510 km (0.096 R)
• M13: 14,428,565 km (0.118 R)
• M14: 15,766,868 km (0.083 R)
• M15: 17,122,673 km (0.11 R)
• M16: 22,482,466 km (0.103 R)
• M17: 24,277,939 km (0.098 R)
• M18: 24,924,352 km (0.115 R)
• M19: 26,505,601 km (0.092 R)
• M20: 28,064,261 km (0.094 R)
• M21: 29,591,656 km (0.058 R)
• M22: 30,515,572 km (0.036 R)
• M23: 31,554,080 km (0.116 R)
• M24: 32,324,061 km (0.102 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.3

Radius: 8.8

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 7.9 AU - 10.28 AU

Year: 9911 Days

Day: 6.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 105,466,409 km

• M1: 109,506 km (0.046 R)
• M2: 397,033 km (0.083 R)
• M3: 1,541,307 km (0.08 R)
• M4: 1,815,071 km (0.104 R)
• M5: 3,065,111 km (0.034 R)
• M6: 3,345,457 km (0.118 R)
• M7: 4,784,140 km (0.091 R)
• M8: 5,133,152 km (0.109 R)
• M9: 5,784,950 km (0.088 R)
• M10: 6,631,524 km (0.08 R)
• M11: 7,714,313 km (0.075 R)
• M12: 8,277,549 km (0.117 R)
• M13: 8,653,788 km (0.091 R)
• M14: 9,129,210 km (0.047 R)
• M15: 9,944,518 km (0.118 R)
• M16: 11,106,146 km (0.043 R)
• M17: 11,719,796 km (0.098 R)
• M18: 13,929,357 km (0.098 R)
• M19: 14,402,535 km (0.109 R)
• M20: 18,369,721 km (0.039 R)
• M21: 19,155,259 km (0.049 R)
• M22: 21,725,052 km (0.09 R)
• M23: 23,839,019 km (0.119 R)
• M24: 26,444,565 km (0.099 R)
• M25: 29,620,229 km (0.093 R)
• M26: 32,522,577 km (0.097 R)
• M27: 32,937,113 km (0.106 R)
• M28: 35,172,255 km (0.057 R)
• M29: 36,493,952 km (0.098 R)
• M30: 37,734,118 km (0.041 R)
• M31: 38,307,078 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 976

Radius: 7.7

Gravity: 16.46 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 15.66 AU - 20.1 AU

Year: 27343 Days

Day: 15.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 105,466,409 km

• M1: 97,239 km (0.116 R)
• M2: 841,488 km (0.089 R)
• M3: 2,078,962 km (0.101 R)
• M4: 2,408,825 km (0.1 R)
• M5: 2,969,368 km (0.078 R)
• M6: 3,516,298 km (0.109 R)
• M7: 5,347,077 km (0.078 R)
• M8: 6,491,650 km (0.081 R)
• M9: 10,352,173 km (0.028 R)
• M10: 10,965,973 km (0.112 R)
• M11: 11,388,587 km (0.116 R)
• M12: 13,031,471 km (0.107 R)
• M13: 13,666,214 km (0.107 R)
• M14: 15,518,086 km (0.076 R)
• M15: 15,961,345 km (0.065 R)
• M16: 16,595,789 km (0.115 R)
• M17: 20,654,828 km (0.044 R)
• M18: 23,429,570 km (0.109 R)
• M19: 26,821,552 km (0.109 R)
• M20: 29,570,712 km (0.054 R)
• M21: 30,389,461 km (0.111 R)
• M22: 31,645,634 km (0.057 R)
• M23: 34,410,801 km (0.105 R)
• M24: 35,164,475 km (0.064 R)
• M25: 35,775,134 km (0.11 R)
• M26: 36,083,156 km (0.07 R)
• M27: 36,548,555 km (0.116 R)
• M28: 42,621,630 km (0.111 R)
• M29: 46,717,021 km (0.082 R)
• M30: 48,388,628 km (0.084 R)
• M31: 53,040,224 km (0.12 R)
• M32: 60,781,914 km (0.082 R)
• M33: 65,035,131 km (0.087 R)
• M34: 72,886,626 km (0.043 R)
• M35: 74,378,865 km (0.077 R)
• M36: 75,891,299 km (0.084 R)
• M37: 79,500,048 km (0.072 R)
• M38: 83,762,391 km (0.052 R)
• M39: 84,851,314 km (0.087 R)
• M40: 86,779,630 km (0.062 R)
• M41: 102,646,878 km (0.086 R)

Kuiper Belt

Range: 30.3 - 51.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 272 - 16,401 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit