🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.49 AU - 0.71 AU

Year: 163 Days

Day: 28 Hours

Environment

Temp: 245 °C

Axial Tilt: 12.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.01

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.96 AU - 1.16 AU

Year: 382 Days

Day: 45.2 Hours

Environment

Temp: 144 °C

Axial Tilt: 3.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 112,084,659 km

• M1: 36,352 km (0.094 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.23 AU - 1.75 AU

Year: 636 Days

Day: 14.7 Hours

Environment

Temp: 6 °C

Axial Tilt: 33.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.29 AU - 3.17 AU

Year: 1578 Days

Day: 43.6 Hours

Environment

Temp: -77 °C

Axial Tilt: 2.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 112,084,659 km

• M1: 559,047 km (0.097 R)
• M2: 2,181,586 km (0.117 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 3.44 AU - 4.26 AU

Year: 2643 Days

Day: 36.6 Hours

Environment

Temp: -100 °C

Axial Tilt: 26.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 4.03 AU - 4.31 AU

Year: 2979 Days

Day: 41.4 Hours

Environment

Temp: -118 °C

Axial Tilt: 39.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358.2

Radius: 11.8

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 4.64 AU - 6.6 AU

Year: 4661 Days

Day: 8.5 Hours

Environment

Temp: -135 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 112,084,659 km

• M1: 147,952 km (0.041 R)
• M2: 566,378 km (0.079 R)
• M3: 1,135,747 km (0.066 R)
• M4: 1,546,992 km (0.115 R)
• M5: 2,125,187 km (0.118 R)
• M6: 2,811,094 km (0.118 R)
• M7: 3,427,886 km (0.071 R)
• M8: 5,832,821 km (0.086 R)
• M9: 6,688,670 km (0.082 R)
• M10: 7,528,812 km (0.098 R)
• M11: 9,120,683 km (0.09 R)
• M12: 10,035,175 km (0.104 R)
• M13: 10,760,425 km (0.105 R)
• M14: 13,721,865 km (0.11 R)
• M15: 14,870,627 km (0.12 R)
• M16: 16,409,091 km (0.12 R)
• M17: 20,555,944 km (0.054 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.1

Radius: 11.9

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 10.46 AU - 10.88 AU

Year: 12193 Days

Day: 8 Hours

Environment

Temp: -179 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 112,084,659 km

• M1: 147,952 km (0.098 R)
• M2: 653,593 km (0.065 R)
• M3: 1,234,781 km (0.104 R)
• M4: 1,668,016 km (0.08 R)
• M5: 2,128,179 km (0.037 R)
• M6: 2,694,856 km (0.076 R)
• M7: 4,819,894 km (0.112 R)
• M8: 7,884,705 km (0.115 R)
• M9: 9,769,938 km (0.099 R)
• M10: 13,864,880 km (0.043 R)
• M11: 15,115,369 km (0.096 R)
• M12: 16,667,596 km (0.089 R)
• M13: 17,207,944 km (0.063 R)
• M14: 24,143,451 km (0.103 R)
• M15: 29,717,617 km (0.041 R)
• M16: 44,792,894 km (0.099 R)
• M17: 48,443,979 km (0.078 R)
• M18: 53,614,381 km (0.097 R)
• M19: 54,117,179 km (0.078 R)
• M20: 56,505,360 km (0.106 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.8

Radius: 12.6

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 9.91 AU - 11.51 AU

Year: 12262 Days

Day: 8.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 88 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 112,084,659 km

• M1: 157,078 km (0.031 R)
• M2: 609,312 km (0.085 R)
• M3: 1,195,586 km (0.106 R)
• M4: 1,716,785 km (0.104 R)
• M5: 2,439,044 km (0.054 R)
• M6: 3,989,177 km (0.099 R)
• M7: 5,496,675 km (0.088 R)
• M8: 6,960,639 km (0.093 R)
• M9: 7,355,129 km (0.106 R)
• M10: 10,833,878 km (0.088 R)
• M11: 14,059,657 km (0.075 R)
• M12: 15,224,127 km (0.108 R)
• M13: 17,219,613 km (0.109 R)
• M14: 19,034,235 km (0.094 R)
• M15: 21,421,517 km (0.103 R)
• M16: 29,492,023 km (0.096 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 927.5

Radius: 7.8

Gravity: 15.24 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 18.26 AU - 21.26 AU

Year: 30730 Days

Day: 17.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 112,084,659 km

• M1: 99,034 km (0.108 R)
• M2: 343,028 km (0.075 R)
• M3: 590,912 km (0.104 R)
• M4: 1,322,296 km (0.066 R)
• M5: 1,568,982 km (0.102 R)
• M6: 1,825,842 km (0.074 R)
• M7: 3,274,398 km (0.115 R)
• M8: 3,698,209 km (0.071 R)
• M9: 6,537,726 km (0.067 R)
• M10: 7,372,333 km (0.118 R)
• M11: 8,877,138 km (0.087 R)
• M12: 15,127,785 km (0.072 R)
• M13: 16,209,528 km (0.111 R)
• M14: 18,125,876 km (0.115 R)
• M15: 18,627,478 km (0.074 R)
• M16: 20,618,775 km (0.064 R)
• M17: 24,165,591 km (0.114 R)
• M18: 24,651,036 km (0.105 R)
• M19: 24,896,078 km (0.082 R)
• M20: 25,391,247 km (0.088 R)
• M21: 26,401,182 km (0.104 R)
• M22: 27,045,949 km (0.077 R)
• M23: 28,635,875 km (0.045 R)
• M24: 35,465,018 km (0.08 R)
• M25: 40,009,502 km (0.097 R)
• M26: 40,859,816 km (0.093 R)
• M27: 44,382,247 km (0.036 R)
• M28: 48,101,699 km (0.073 R)
• M29: 58,299,038 km (0.06 R)
• M30: 65,999,589 km (0.061 R)
• M31: 78,778,987 km (0.05 R)
• M32: 82,829,349 km (0.065 R)
• M33: 91,635,727 km (0.049 R)
• M34: 91,929,836 km (0.102 R)
• M35: 107,120,453 km (0.074 R)

Kuiper Belt

Range: 31.4 - 47.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 344 - 11,890 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit