🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.59

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.5 AU - 0.54 AU

Year: 238 Days

Day: 27.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 12.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 37,917,146 km

• M1: 40,092 km (0.082 R)
• M2: 310,266 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.6 AU - 0.66 AU

Year: 318 Days

Day: 15.3 Hours

Environment

Temp: -126 °C

Axial Tilt: 34.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687

Radius: 13.8

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.67 AU - 0.86 AU

Year: 421 Days

Day: 12 Hours

Environment

Temp: -146 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,917,146 km

• M1: 171,738 km (0.075 R)
• M2: 651,798 km (0.069 R)
• M3: 1,670,260 km (0.115 R)
• M4: 2,206,419 km (0.071 R)
• M5: 2,775,340 km (0.052 R)
• M6: 3,245,825 km (0.035 R)
• M7: 4,322,331 km (0.055 R)
• M8: 5,096,949 km (0.108 R)
• M9: 5,691,301 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.5

Radius: 11.7

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.97 AU - 1.05 AU

Year: 645 Days

Day: 11 Hours

Environment

Temp: -150 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,917,146 km

• M1: 145,559 km (0.092 R)
• M2: 577,448 km (0.048 R)
• M3: 969,095 km (0.074 R)
• M4: 1,471,594 km (0.113 R)
• M5: 2,252,944 km (0.081 R)
• M6: 2,687,376 km (0.084 R)
• M7: 3,077,527 km (0.114 R)
• M8: 4,482,999 km (0.084 R)
• M9: 5,140,931 km (0.118 R)
• M10: 5,521,358 km (0.06 R)
• M11: 6,734,747 km (0.109 R)
• M12: 7,169,179 km (0.083 R)
• M13: 7,761,736 km (0.035 R)

Asteroid Belt

Center: 3.21 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.5

Radius: 11.2

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 4.68 AU - 6.12 AU

Year: 7979 Days

Day: 7.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 37,917,146 km

• M1: 139,276 km (0.108 R)
• M2: 634,893 km (0.075 R)
• M3: 1,039,855 km (0.105 R)
• M4: 1,567,038 km (0.097 R)
• M5: 2,034,830 km (0.057 R)
• M6: 3,650,936 km (0.097 R)
• M7: 5,340,644 km (0.095 R)
• M8: 6,270,096 km (0.08 R)
• M9: 7,944,395 km (0.044 R)
• M10: 8,578,092 km (0.118 R)
• M11: 8,974,376 km (0.025 R)
• M12: 9,756,175 km (0.055 R)
• M13: 10,285,901 km (0.118 R)
• M14: 11,721,143 km (0.107 R)
• M15: 13,461,265 km (0.064 R)
• M16: 19,033,337 km (0.11 R)
• M17: 19,784,917 km (0.111 R)
• M18: 22,572,374 km (0.077 R)
• M19: 23,757,339 km (0.091 R)
• M20: 24,983,293 km (0.105 R)
• M21: 26,067,130 km (0.065 R)
• M22: 26,527,891 km (0.076 R)
• M23: 29,706,846 km (0.118 R)
• M24: 30,615,952 km (0.041 R)
• M25: 37,859,032 km (0.051 R)
• M26: 40,506,615 km (0.074 R)
• M27: 41,499,197 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 892.3

Radius: 4.7

Gravity: 40.39 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 6.55 AU - 6.61 AU

Year: 10732 Days

Day: 20.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 37,917,146 km

• M1: 58,493 km (0.096 R)
• M2: 422,614 km (0.071 R)
• M3: 742,903 km (0.114 R)
• M4: 894,595 km (0.087 R)
• M5: 1,078,451 km (0.074 R)
• M6: 1,583,344 km (0.105 R)
• M7: 2,328,940 km (0.079 R)
• M8: 3,410,981 km (0.051 R)
• M9: 3,646,149 km (0.068 R)
• M10: 4,004,585 km (0.035 R)
• M11: 4,207,141 km (0.103 R)
• M12: 4,416,578 km (0.095 R)
• M13: 5,086,776 km (0.111 R)
• M14: 6,082,649 km (0.116 R)
• M15: 7,202,090 km (0.115 R)
• M16: 9,633,205 km (0.089 R)
• M17: 11,839,175 km (0.057 R)
• M18: 13,699,425 km (0.095 R)
• M19: 15,042,365 km (0.104 R)
• M20: 20,774,507 km (0.111 R)
• M21: 22,998,578 km (0.082 R)
• M22: 23,183,182 km (0.103 R)
• M23: 24,311,000 km (0.11 R)
• M24: 25,573,606 km (0.056 R)
• M25: 30,281,152 km (0.097 R)
• M26: 35,289,390 km (0.082 R)
• M27: 35,534,880 km (0.118 R)
• M28: 35,781,567 km (0.079 R)
• M29: 36,905,645 km (0.108 R)
• M30: 38,182,014 km (0.068 R)
• M31: 39,619,650 km (0.098 R)
• M32: 39,884,887 km (0.071 R)
• M33: 50,085,816 km (0.064 R)
• M34: 54,708,241 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 178.8

Radius: 3.3

Gravity: 16.42 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 5.84 AU - 9.7 AU

Year: 13771 Days

Day: 21.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 37,917,146 km

• M1: 40,990 km (0.045 R)
• M2: 154,086 km (0.057 R)
• M3: 472,430 km (0.077 R)
• M4: 872,455 km (0.082 R)
• M5: 1,084,285 km (0.112 R)
• M6: 2,948,574 km (0.116 R)
• M7: 3,800,384 km (0.115 R)
• M8: 4,282,389 km (0.056 R)
• M9: 5,305,488 km (0.039 R)
• M10: 6,446,322 km (0.105 R)
• M11: 6,621,651 km (0.118 R)
• M12: 7,129,535 km (0.06 R)
• M13: 7,585,061 km (0.09 R)
• M14: 8,181,508 km (0.046 R)
• M15: 8,470,231 km (0.047 R)
• M16: 8,680,566 km (0.086 R)
• M17: 9,068,025 km (0.106 R)
• M18: 9,923,575 km (0.093 R)
• M19: 12,215,115 km (0.115 R)
• M20: 12,756,210 km (0.051 R)
• M21: 14,119,346 km (0.073 R)
• M22: 16,602,222 km (0.072 R)
• M23: 19,072,233 km (0.114 R)
• M24: 20,469,626 km (0.065 R)
• M25: 20,924,703 km (0.058 R)
• M26: 23,548,799 km (0.053 R)
• M27: 25,328,116 km (0.063 R)
• M28: 30,802,800 km (0.112 R)
• M29: 34,931,252 km (0.099 R)
• M30: 36,348,543 km (0.099 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 11,429 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit