🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.63

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.94 AU - 1 AU

Year: 360 Days

Day: 24.2 Hours

Environment

Temp: 19 °C

Axial Tilt: 151.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.95 AU - 1.27 AU

Year: 441 Days

Day: 36.6 Hours

Environment

Temp: 14 °C

Axial Tilt: 32.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.73

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.07 AU - 1.63 AU

Year: 591 Days

Day: 24.2 Hours

Environment

Temp: -31 °C

Axial Tilt: 48.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,853,684 km

• M1: 243,994 km (0.045 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.85

Radius: 1.71

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.86 AU - 4.46 AU

Year: 2638 Days

Day: 18.6 Hours

Environment

Temp: -125 °C

Axial Tilt: 23.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.83

Radius: 0.93

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 3.6 AU - 3.8 AU

Year: 2681 Days

Day: 27.9 Hours

Environment

Temp: -132 °C

Axial Tilt: 13.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.49 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.1

Radius: 12.4

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 4.25 AU - 6.29 AU

Year: 4558 Days

Day: 10.5 Hours

Environment

Temp: -148 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,853,684 km

• M1: 154,983 km (0.047 R)
• M2: 775,515 km (0.086 R)
• M3: 1,525,001 km (0.058 R)
• M4: 2,716,847 km (0.068 R)
• M5: 3,129,139 km (0.096 R)
• M6: 3,657,070 km (0.101 R)
• M7: 4,142,066 km (0.069 R)
• M8: 5,386,421 km (0.117 R)
• M9: 7,700,401 km (0.111 R)
• M10: 8,142,313 km (0.035 R)
• M11: 9,008,185 km (0.093 R)
• M12: 9,570,973 km (0.119 R)
• M13: 11,810,154 km (0.093 R)
• M14: 12,831,757 km (0.087 R)
• M15: 13,229,688 km (0.065 R)
• M16: 13,865,179 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.3

Radius: 10.7

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 5.45 AU - 8.43 AU

Year: 6888 Days

Day: 14.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,853,684 km

• M1: 132,993 km (0.08 R)
• M2: 510,877 km (0.107 R)
• M3: 968,796 km (0.077 R)
• M4: 2,245,165 km (0.04 R)
• M5: 2,944,236 km (0.07 R)
• M6: 3,543,375 km (0.103 R)
• M7: 5,231,737 km (0.091 R)
• M8: 7,123,252 km (0.075 R)
• M9: 11,147,884 km (0.083 R)
• M10: 13,009,928 km (0.098 R)
• M11: 13,852,912 km (0.085 R)
• M12: 17,340,936 km (0.083 R)
• M13: 19,830,095 km (0.114 R)
• M14: 28,102,409 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.9

Radius: 12.6

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 6.06 AU - 8.38 AU

Year: 7309 Days

Day: 11.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,853,684 km

• M1: 156,629 km (0.08 R)
• M2: 955,781 km (0.113 R)
• M3: 1,386,922 km (0.114 R)
• M4: 1,814,622 km (0.058 R)
• M5: 2,227,512 km (0.107 R)
• M6: 2,626,041 km (0.065 R)
• M7: 3,337,828 km (0.09 R)
• M8: 4,905,165 km (0.102 R)
• M9: 5,364,430 km (0.085 R)
• M10: 9,246,794 km (0.115 R)
• M11: 14,323,398 km (0.119 R)
• M12: 18,856,662 km (0.116 R)
• M13: 21,649,505 km (0.103 R)
• M14: 22,388,668 km (0.057 R)
• M15: 22,806,644 km (0.112 R)
• M16: 27,371,922 km (0.107 R)
• M17: 29,717,318 km (0.06 R)
• M18: 35,592,325 km (0.092 R)
• M19: 37,086,210 km (0.111 R)
• M20: 38,621,533 km (0.113 R)
• M21: 39,708,960 km (0.112 R)
• M22: 42,071,559 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 625.7

Radius: 5

Gravity: 25.03 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 11.82 AU - 13.38 AU

Year: 16849 Days

Day: 16.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 65,853,684 km

• M1: 62,233 km (0.095 R)
• M2: 302,487 km (0.073 R)
• M3: 565,181 km (0.101 R)
• M4: 994,676 km (0.089 R)
• M5: 1,585,139 km (0.116 R)
• M6: 1,910,514 km (0.064 R)
• M7: 2,218,088 km (0.108 R)
• M8: 2,811,094 km (0.064 R)
• M9: 4,241,399 km (0.1 R)
• M10: 4,530,572 km (0.098 R)
• M11: 4,971,436 km (0.098 R)
• M12: 5,515,075 km (0.077 R)
• M13: 5,820,853 km (0.104 R)
• M14: 5,977,781 km (0.078 R)
• M15: 6,137,701 km (0.061 R)
• M16: 6,382,892 km (0.034 R)
• M17: 7,157,809 km (0.062 R)
• M18: 11,128,137 km (0.044 R)
• M19: 12,054,896 km (0.111 R)
• M20: 12,965,348 km (0.088 R)
• M21: 13,851,117 km (0.051 R)
• M22: 14,061,003 km (0.075 R)
• M23: 18,976,939 km (0.098 R)
• M24: 21,024,186 km (0.115 R)
• M25: 25,446,448 km (0.057 R)
• M26: 31,766,509 km (0.111 R)
• M27: 36,470,315 km (0.11 R)
• M28: 43,685,570 km (0.092 R)
• M29: 52,641,396 km (0.092 R)
• M30: 55,760,662 km (0.099 R)
• M31: 56,827,145 km (0.063 R)
• M32: 58,270,315 km (0.099 R)
• M33: 63,321,039 km (0.104 R)
• M34: 64,481,769 km (0.091 R)
• M35: 65,263,268 km (0.09 R)
• M36: 65,459,690 km (0.061 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 214 - 19,814 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit