🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.78

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.55 AU - 0.85 AU

Year: 219 Days

Day: 24.7 Hours

Environment

Temp: 167 °C

Axial Tilt: 21.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.63 AU - 0.91 AU

Year: 253 Days

Day: 22.1 Hours

Environment

Temp: 133 °C

Axial Tilt: 34 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.61 AU - 1.95 AU

Year: 890 Days

Day: 23.2 Hours

Environment

Temp: -61 °C

Axial Tilt: 29.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 94,804,775 km

• M1: 1,194,240 km (0.084 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.93

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.73 AU - 2.39 AU

Year: 1108 Days

Day: 36.8 Hours

Environment

Temp: -71 °C

Axial Tilt: 29.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 94,804,775 km

• M1: 42,187 km (0.115 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.89

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 2.28 AU - 3.14 AU

Year: 1672 Days

Day: 41.8 Hours

Environment

Temp: -93 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.5

Radius: 14.3

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 5.57 AU - 7.09 AU

Year: 5968 Days

Day: 9.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 94,804,775 km

• M1: 177,872 km (0.068 R)
• M2: 661,671 km (0.072 R)
• M3: 1,109,418 km (0.043 R)
• M4: 2,227,512 km (0.093 R)
• M5: 3,979,902 km (0.103 R)
• M6: 4,548,224 km (0.054 R)
• M7: 5,279,458 km (0.065 R)
• M8: 5,997,827 km (0.109 R)
• M9: 9,419,580 km (0.116 R)
• M10: 10,566,546 km (0.092 R)
• M11: 11,335,180 km (0.1 R)
• M12: 11,947,933 km (0.12 R)
• M13: 13,343,083 km (0.096 R)
• M14: 14,404,330 km (0.074 R)
• M15: 17,551,121 km (0.106 R)
• M16: 18,053,321 km (0.104 R)
• M17: 19,752,604 km (0.081 R)
• M18: 20,227,876 km (0.119 R)
• M19: 20,919,916 km (0.086 R)
• M20: 21,627,813 km (0.109 R)
• M21: 23,241,376 km (0.077 R)
• M22: 25,329,911 km (0.102 R)
• M23: 26,053,068 km (0.117 R)
• M24: 28,391,282 km (0.028 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.3

Radius: 10.9

Gravity: 5.97 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 8.65 AU - 13.77 AU

Year: 14065 Days

Day: 9.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 94,804,775 km

• M1: 136,284 km (0.112 R)
• M2: 682,166 km (0.094 R)
• M3: 1,203,066 km (0.104 R)
• M4: 3,016,940 km (0.117 R)
• M5: 3,822,375 km (0.055 R)
• M6: 4,798,202 km (0.119 R)
• M7: 5,819,357 km (0.047 R)
• M8: 6,482,076 km (0.044 R)
• M9: 9,541,352 km (0.111 R)
• M10: 11,562,569 km (0.086 R)
• M11: 12,171,432 km (0.053 R)
• M12: 15,323,160 km (0.082 R)
• M13: 16,586,215 km (0.086 R)
• M14: 33,870,903 km (0.094 R)
• M15: 35,751,647 km (0.064 R)
• M16: 41,386,700 km (0.07 R)
• M17: 43,389,366 km (0.052 R)
• M18: 50,584,575 km (0.062 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 185.5

Radius: 5.3

Gravity: 6.6 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 11.69 AU - 12.53 AU

Year: 15792 Days

Day: 17.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 94,804,775 km

• M1: 87,365 km (0.106 R)
• M2: 396,883 km (0.072 R)
• M3: 590,164 km (0.095 R)
• M4: 770,429 km (0.115 R)
• M5: 1,111,363 km (0.069 R)
• M6: 2,280,171 km (0.07 R)
• M7: 2,480,781 km (0.118 R)
• M8: 2,981,037 km (0.115 R)
• M9: 4,885,866 km (0.083 R)
• M10: 5,283,049 km (0.078 R)
• M11: 5,701,624 km (0.108 R)
• M12: 6,714,401 km (0.088 R)
• M13: 7,801,080 km (0.089 R)
• M14: 9,090,165 km (0.07 R)
• M15: 9,643,528 km (0.106 R)
• M16: 10,766,260 km (0.056 R)
• M17: 17,288,577 km (0.064 R)
• M18: 18,064,840 km (0.097 R)
• M19: 18,280,561 km (0.094 R)
• M20: 18,938,043 km (0.084 R)
• M21: 23,557,625 km (0.087 R)
• M22: 26,218,074 km (0.045 R)
• M23: 26,866,431 km (0.101 R)
• M24: 27,053,578 km (0.111 R)
• M25: 32,655,570 km (0.075 R)
• M26: 33,190,382 km (0.1 R)
• M27: 40,684,188 km (0.062 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 619.9

Radius: 5.4

Gravity: 21.26 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 13.95 AU - 22.57 AU

Year: 29240 Days

Day: 20.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 94,804,775 km

• M1: 68,965 km (0.042 R)
• M2: 1,529,788 km (0.054 R)
• M3: 1,790,537 km (0.078 R)
• M4: 2,353,922 km (0.077 R)
• M5: 5,348,124 km (0.078 R)
• M6: 6,596,518 km (0.11 R)
• M7: 7,758,146 km (0.1 R)
• M8: 10,413,957 km (0.097 R)
• M9: 14,412,259 km (0.099 R)
• M10: 15,151,272 km (0.107 R)
• M11: 15,572,540 km (0.042 R)
• M12: 16,704,547 km (0.098 R)
• M13: 17,983,908 km (0.11 R)
• M14: 21,676,731 km (0.117 R)
• M15: 25,135,584 km (0.043 R)
• M16: 25,607,116 km (0.085 R)
• M17: 28,688,533 km (0.04 R)
• M18: 35,871,625 km (0.073 R)
• M19: 48,209,859 km (0.12 R)
• M20: 70,055,785 km (0.073 R)
• M21: 74,079,070 km (0.05 R)
• M22: 75,534,957 km (0.107 R)
• M23: 78,003,771 km (0.069 R)
• M24: 80,017,059 km (0.029 R)
• M25: 83,623,265 km (0.089 R)
• M26: 85,997,832 km (0.111 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 510 - 11,706 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit