🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.57 AU - 0.69 AU

Year: 183 Days

Day: 33.2 Hours

Environment

Temp: 180 °C

Axial Tilt: 37 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 65,033,957 km

• M1: 378,782 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.82 AU - 0.92 AU

Year: 296 Days

Day: 13.4 Hours

Environment

Temp: 143 °C

Axial Tilt: 6.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 65,033,957 km

• M1: 236,813 km (0.06 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.48

Radius: 0.75

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.53 AU - 1.91 AU

Year: 824 Days

Day: 29.6 Hours

Environment

Temp: -48 °C

Axial Tilt: 13.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,033,957 km

• M1: 24,235 km (0.084 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 2.71 AU - 3.69 AU

Year: 2091 Days

Day: 22.7 Hours

Environment

Temp: -99 °C

Axial Tilt: 45.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.85 AU - 4.19 AU

Year: 2412 Days

Day: 24.4 Hours

Environment

Temp: -121 °C

Axial Tilt: 27.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.89 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.7

Radius: 13.8

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 5.7 AU - 6.82 AU

Year: 5721 Days

Day: 10.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,033,957 km

• M1: 172,337 km (0.097 R)
• M2: 655,239 km (0.075 R)
• M3: 1,147,864 km (0.087 R)
• M4: 2,985,226 km (0.106 R)
• M5: 3,881,167 km (0.044 R)
• M6: 4,632,148 km (0.102 R)
• M7: 5,354,856 km (0.1 R)
• M8: 8,643,466 km (0.1 R)
• M9: 10,613,969 km (0.089 R)
• M10: 11,999,096 km (0.071 R)
• M11: 12,559,489 km (0.097 R)
• M12: 13,002,449 km (0.08 R)
• M13: 13,779,460 km (0.065 R)
• M14: 14,635,608 km (0.114 R)
• M15: 16,718,310 km (0.036 R)
• M16: 17,472,732 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.6

Radius: 12.5

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 10.62 AU - 12.72 AU

Year: 14561 Days

Day: 11.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,033,957 km

• M1: 155,731 km (0.1 R)
• M2: 578,046 km (0.091 R)
• M3: 1,013,675 km (0.107 R)
• M4: 1,613,263 km (0.091 R)
• M5: 3,216,653 km (0.114 R)
• M6: 4,596,245 km (0.053 R)
• M7: 12,457,912 km (0.12 R)
• M8: 13,121,678 km (0.089 R)
• M9: 15,105,944 km (0.113 R)
• M10: 17,120,878 km (0.115 R)
• M11: 19,134,615 km (0.111 R)
• M12: 20,379,718 km (0.06 R)
• M13: 26,225,853 km (0.093 R)
• M14: 28,323,814 km (0.105 R)
• M15: 32,851,393 km (0.067 R)
• M16: 37,565,372 km (0.081 R)
• M17: 39,231,892 km (0.04 R)
• M18: 51,961,923 km (0.109 R)
• M19: 52,644,987 km (0.067 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.2

Radius: 13

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 9.32 AU - 14.54 AU

Year: 15050 Days

Day: 11.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 65,033,957 km

• M1: 163,361 km (0.075 R)
• M2: 1,397,843 km (0.059 R)
• M3: 2,526,259 km (0.107 R)
• M4: 3,142,453 km (0.038 R)
• M5: 4,413,885 km (0.074 R)
• M6: 5,923,926 km (0.051 R)
• M7: 7,288,109 km (0.082 R)
• M8: 8,142,313 km (0.093 R)
• M9: 9,438,429 km (0.078 R)
• M10: 12,568,316 km (0.047 R)
• M11: 13,309,872 km (0.072 R)
• M12: 15,405,140 km (0.092 R)
• M13: 17,053,858 km (0.101 R)
• M14: 18,301,504 km (0.111 R)
• M15: 18,730,701 km (0.105 R)
• M16: 20,423,251 km (0.097 R)
• M17: 20,978,259 km (0.032 R)
• M18: 25,467,841 km (0.058 R)
• M19: 34,309,524 km (0.091 R)
• M20: 45,002,480 km (0.064 R)
• M21: 46,896,838 km (0.077 R)
• M22: 54,830,163 km (0.041 R)
• M23: 67,008,776 km (0.073 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 406.2

Radius: 7.8

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 12.69 AU - 16.65 AU

Year: 20523 Days

Day: 23.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 65,033,957 km

• M1: 111,750 km (0.077 R)
• M2: 482,004 km (0.093 R)
• M3: 961,466 km (0.111 R)
• M4: 1,319,154 km (0.074 R)
• M5: 1,832,873 km (0.059 R)
• M6: 2,430,666 km (0.099 R)
• M7: 2,740,483 km (0.076 R)
• M8: 4,572,459 km (0.11 R)
• M9: 5,011,828 km (0.074 R)
• M10: 5,260,011 km (0.113 R)
• M11: 6,542,214 km (0.084 R)
• M12: 7,459,548 km (0.089 R)
• M13: 8,915,285 km (0.094 R)
• M14: 10,096,659 km (0.041 R)
• M15: 10,725,120 km (0.097 R)
• M16: 11,685,239 km (0.089 R)
• M17: 12,186,243 km (0.116 R)
• M18: 12,701,607 km (0.078 R)
• M19: 13,983,661 km (0.119 R)
• M20: 18,851,127 km (0.114 R)
• M21: 21,060,538 km (0.092 R)
• M22: 28,602,814 km (0.094 R)
• M23: 33,720,108 km (0.09 R)
• M24: 43,749,000 km (0.116 R)
• M25: 44,349,785 km (0.052 R)
• M26: 60,841,753 km (0.112 R)
• M27: 64,839,308 km (0.065 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: 384 - 19,304 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit