🌌 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: 1.23

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.47 AU - 0.61 AU

Year: 139 Days

Day: 33.9 Hours

Environment

Temp: 204 °C

Axial Tilt: 21.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 44,291,298 km

• M1: 94,247 km (0.102 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.07

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.62 AU - 0.7 AU

Year: 188 Days

Day: 14.9 Hours

Environment

Temp: 155 °C

Axial Tilt: 29.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.47 AU - 1.51 AU

Year: 636 Days

Day: 25.9 Hours

Environment

Temp: -3 °C

Axial Tilt: 38.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 3.81 AU - 4.81 AU

Year: 3130 Days

Day: 15.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 31.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 44,291,298 km

• M1: 346,020 km (0.091 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.31

Radius: 1.61

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 4.19 AU - 5.21 AU

Year: 3565 Days

Day: 25.4 Hours

Environment

Temp: -125 °C

Axial Tilt: 123.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 9.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.2

Radius: 12.5

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 8.84 AU - 10.18 AU

Year: 10260 Days

Day: 10.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 44,291,298 km

• M1: 155,582 km (0.089 R)
• M2: 648,507 km (0.045 R)
• M3: 1,383,481 km (0.104 R)
• M4: 2,444,878 km (0.067 R)
• M5: 3,127,643 km (0.081 R)
• M6: 4,044,378 km (0.099 R)
• M7: 5,099,941 km (0.059 R)
• M8: 5,816,664 km (0.108 R)
• M9: 8,605,917 km (0.095 R)
• M10: 9,080,591 km (0.115 R)
• M11: 11,894,975 km (0.034 R)
• M12: 14,438,139 km (0.057 R)
• M13: 14,906,081 km (0.092 R)
• M14: 15,661,850 km (0.107 R)
• M15: 16,806,423 km (0.111 R)
• M16: 17,625,172 km (0.119 R)
• M17: 22,388,967 km (0.114 R)
• M18: 28,258,589 km (0.105 R)
• M19: 31,826,049 km (0.111 R)
• M20: 32,848,850 km (0.091 R)
• M21: 37,913,636 km (0.12 R)
• M22: 42,105,368 km (0.093 R)
• M23: 46,018,250 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 106

Radius: 3.8

Gravity: 7.34 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 14.49 AU - 19.81 AU

Year: 24847 Days

Day: 24 Hours

Environment

Temp: -189 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 44,291,298 km

• M1: 47,273 km (0.109 R)
• M2: 247,734 km (0.119 R)
• M3: 556,354 km (0.083 R)
• M4: 914,941 km (0.098 R)
• M5: 1,082,490 km (0.106 R)
• M6: 1,479,673 km (0.063 R)
• M7: 1,933,852 km (0.104 R)
• M8: 2,193,105 km (0.057 R)
• M9: 3,042,970 km (0.106 R)
• M10: 3,203,489 km (0.082 R)
• M11: 3,541,281 km (0.058 R)
• M12: 4,607,914 km (0.112 R)
• M13: 5,197,928 km (0.11 R)
• M14: 7,391,182 km (0.102 R)
• M15: 7,597,926 km (0.079 R)
• M16: 7,808,410 km (0.052 R)
• M17: 8,781,245 km (0.069 R)
• M18: 10,031,734 km (0.071 R)
• M19: 13,791,727 km (0.116 R)
• M20: 14,104,985 km (0.075 R)
• M21: 14,423,030 km (0.118 R)
• M22: 15,272,297 km (0.05 R)
• M23: 15,607,695 km (0.05 R)
• M24: 16,293,003 km (0.076 R)
• M25: 16,855,641 km (0.077 R)
• M26: 17,503,848 km (0.1 R)
• M27: 19,469,714 km (0.071 R)
• M28: 20,023,077 km (0.097 R)
• M29: 26,625,429 km (0.057 R)
• M30: 28,806,267 km (0.12 R)
• M31: 41,903,112 km (0.1 R)
• M32: 45,117,970 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 408.9

Radius: 6.5

Gravity: 9.68 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 14.87 AU - 21.41 AU

Year: 27029 Days

Day: 16.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 44,291,298 km

• M1: 80,783 km (0.11 R)
• M2: 350,209 km (0.083 R)
• M3: 669,899 km (0.114 R)
• M4: 1,162,375 km (0.062 R)
• M5: 3,022,027 km (0.105 R)
• M6: 12,606,014 km (0.061 R)
• M7: 15,742,932 km (0.116 R)
• M8: 22,470,049 km (0.07 R)
• M9: 29,280,642 km (0.071 R)
• M10: 30,891,063 km (0.025 R)
• M11: 31,143,883 km (0.109 R)
• M12: 37,348,754 km (0.097 R)
• M13: 37,779,895 km (0.076 R)
• M14: 40,285,809 km (0.12 R)
• M15: 40,739,240 km (0.095 R)
• M16: 43,057,708 km (0.113 R)
• M17: 43,690,357 km (0.083 R)
• M18: 66,521,236 km (0.103 R)
• M19: 69,511,698 km (0.093 R)
• M20: 71,923,365 km (0.09 R)
• M21: 76,681,026 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 20.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 631.8

Radius: 4.4

Gravity: 32.63 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 18.02 AU - 22.24 AU

Year: 31597 Days

Day: 16 Hours

Environment

Temp: -191 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 44,291,298 km

• M1: 54,753 km (0.111 R)
• M2: 241,601 km (0.064 R)
• M3: 565,630 km (0.06 R)
• M4: 1,442,871 km (0.106 R)
• M5: 3,663,203 km (0.073 R)
• M6: 3,897,773 km (0.04 R)
• M7: 4,036,300 km (0.062 R)
• M8: 4,359,880 km (0.117 R)
• M9: 7,547,362 km (0.106 R)
• M10: 7,872,289 km (0.053 R)
• M11: 8,093,993 km (0.119 R)
• M12: 8,320,035 km (0.107 R)
• M13: 8,725,445 km (0.108 R)
• M14: 10,816,076 km (0.117 R)
• M15: 11,868,197 km (0.067 R)
• M16: 12,531,066 km (0.081 R)
• M17: 19,444,432 km (0.104 R)
• M18: 21,852,509 km (0.117 R)
• M19: 23,411,468 km (0.051 R)
• M20: 24,101,863 km (0.066 R)
• M21: 27,503,419 km (0.047 R)
• M22: 30,390,508 km (0.082 R)
• M23: 34,644,024 km (0.119 R)
• M24: 39,438,935 km (0.118 R)
• M25: 40,579,619 km (0.095 R)
• M26: 42,247,037 km (0.095 R)
• M27: 43,613,464 km (0.062 R)
• M28: 55,014,916 km (0.114 R)
• M29: 65,949,025 km (0.104 R)
• M30: 66,176,712 km (0.065 R)
• M31: 73,989,910 km (0.045 R)
• M32: 74,235,849 km (0.088 R)
• M33: 77,482,422 km (0.089 R)
• M34: 84,256,962 km (0.041 R)
• M35: 85,063,144 km (0.092 R)
• M36: 86,964,234 km (0.059 R)
• M37: 96,895,738 km (0.027 R)

Planet 10 - Ice Giant

Semi-Major Axis: 20.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 50

Radius: 4.4

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 16.04 AU - 25.3 AU

Year: 32877 Days

Day: 20.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,291,298 km

• M1: 54,753 km (0.047 R)
• M2: 312,660 km (0.104 R)
• M3: 532,269 km (0.043 R)
• M4: 713,283 km (0.111 R)
• M5: 1,967,661 km (0.051 R)
• M6: 2,188,168 km (0.103 R)
• M7: 3,900,615 km (0.07 R)
• M8: 6,566,299 km (0.094 R)
• M9: 8,464,547 km (0.114 R)
• M10: 12,485,737 km (0.109 R)
• M11: 27,221,577 km (0.085 R)

Kuiper Belt

Range: 31.4 - 46.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 540 - 19,294 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit