🌌 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: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.41 AU - 0.61 AU

Year: 235 Days

Day: 16.1 Hours

Environment

Temp: -107 °C

Axial Tilt: 34.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.3

Radius: 12.2

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.69 AU - 1.07 AU

Year: 533 Days

Day: 13.3 Hours

Environment

Temp: -144 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 79,109,785 km

• M1: 151,692 km (0.116 R)
• M2: 589,266 km (0.105 R)
• M3: 1,264,102 km (0.113 R)
• M4: 2,642,048 km (0.053 R)
• M5: 3,731,719 km (0.071 R)
• M6: 4,398,477 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.6

Radius: 14.4

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.81 AU - 0.99 AU

Year: 551 Days

Day: 9.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,109,785 km

• M1: 179,069 km (0.111 R)
• M2: 737,966 km (0.109 R)
• M3: 1,410,708 km (0.094 R)
• M4: 1,901,239 km (0.069 R)
• M5: 2,379,803 km (0.097 R)
• M6: 2,908,631 km (0.115 R)
• M7: 3,422,500 km (0.098 R)
• M8: 3,933,227 km (0.058 R)
• M9: 4,494,818 km (0.106 R)
• M10: 4,988,341 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.8

Radius: 14.9

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.98 AU - 1.56 AU

Year: 924 Days

Day: 13.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 79,109,785 km

• M1: 185,352 km (0.117 R)
• M2: 670,348 km (0.085 R)
• M3: 1,264,551 km (0.109 R)
• M4: 2,080,308 km (0.085 R)
• M5: 3,242,384 km (0.091 R)
• M6: 3,906,000 km (0.085 R)
• M7: 5,648,816 km (0.105 R)
• M8: 6,324,848 km (0.098 R)
• M9: 6,936,853 km (0.091 R)
• M10: 7,415,417 km (0.116 R)
• M11: 8,493,270 km (0.077 R)
• M12: 9,790,881 km (0.114 R)
• M13: 10,364,140 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.3

Radius: 12.3

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.06 AU - 1.76 AU

Year: 1081 Days

Day: 5.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 84.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 79,109,785 km

• M1: 153,787 km (0.101 R)
• M2: 538,852 km (0.052 R)
• M3: 1,052,122 km (0.089 R)
• M4: 1,477,877 km (0.1 R)
• M5: 1,882,091 km (0.057 R)
• M6: 2,371,725 km (0.038 R)
• M7: 2,946,031 km (0.041 R)
• M8: 3,654,676 km (0.069 R)
• M9: 5,025,740 km (0.069 R)
• M10: 5,488,147 km (0.068 R)
• M11: 5,918,391 km (0.085 R)
• M12: 6,434,653 km (0.041 R)
• M13: 6,847,095 km (0.074 R)
• M14: 7,369,939 km (0.082 R)
• M15: 7,993,014 km (0.096 R)
• M16: 8,993,226 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619

Radius: 10.3

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.54 AU - 1.62 AU

Year: 1282 Days

Day: 11.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 79,109,785 km

• M1: 128,056 km (0.084 R)
• M2: 509,979 km (0.107 R)
• M3: 979,417 km (0.1 R)
• M4: 1,300,005 km (0.06 R)
• M5: 1,748,201 km (0.088 R)
• M6: 2,497,686 km (0.098 R)
• M7: 2,865,996 km (0.09 R)
• M8: 3,358,771 km (0.104 R)
• M9: 4,282,389 km (0.05 R)
• M10: 4,813,311 km (0.096 R)
• M11: 5,680,830 km (0.091 R)
• M12: 6,231,350 km (0.112 R)
• M13: 7,012,101 km (0.066 R)
• M14: 7,568,007 km (0.117 R)
• M15: 8,152,934 km (0.082 R)
• M16: 8,969,888 km (0.1 R)
• M17: 9,503,803 km (0.118 R)
• M18: 10,667,974 km (0.106 R)
• M19: 10,998,286 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 113

Radius: 6.4

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 9.53 AU - 11.19 AU

Year: 21531 Days

Day: 22.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 79,109,785 km

• M1: 85,720 km (0.114 R)
• M2: 1,680,732 km (0.096 R)
• M3: 2,461,483 km (0.032 R)
• M4: 4,255,611 km (0.1 R)
• M5: 6,447,070 km (0.106 R)
• M6: 12,888,605 km (0.075 R)
• M7: 20,842,723 km (0.064 R)
• M8: 23,852,333 km (0.117 R)
• M9: 26,384,576 km (0.049 R)
• M10: 27,812,189 km (0.067 R)
• M11: 32,942,199 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 642.1

Radius: 7.1

Gravity: 12.74 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 9.36 AU - 11.94 AU

Year: 22441 Days

Day: 16.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 79,109,785 km

• M1: 88,263 km (0.098 R)
• M2: 328,068 km (0.12 R)
• M3: 1,078,301 km (0.086 R)
• M4: 2,047,247 km (0.095 R)
• M5: 3,027,562 km (0.108 R)
• M6: 3,561,626 km (0.111 R)
• M7: 5,423,970 km (0.118 R)
• M8: 7,071,192 km (0.095 R)
• M9: 8,164,005 km (0.117 R)
• M10: 10,371,172 km (0.081 R)
• M11: 12,046,069 km (0.066 R)
• M12: 12,595,692 km (0.041 R)
• M13: 14,345,389 km (0.105 R)
• M14: 17,962,964 km (0.081 R)
• M15: 18,409,065 km (0.104 R)
• M16: 20,076,483 km (0.066 R)
• M17: 21,143,565 km (0.073 R)
• M18: 23,179,741 km (0.062 R)
• M19: 23,922,345 km (0.11 R)
• M20: 24,900,266 km (0.096 R)
• M21: 28,714,114 km (0.096 R)
• M22: 33,299,888 km (0.104 R)
• M23: 35,346,536 km (0.115 R)
• M24: 36,471,811 km (0.09 R)
• M25: 37,331,101 km (0.12 R)
• M26: 43,889,472 km (0.053 R)
• M27: 49,240,588 km (0.12 R)
• M28: 51,354,256 km (0.111 R)
• M29: 53,711,769 km (0.067 R)
• M30: 55,197,725 km (0.065 R)
• M31: 67,227,039 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 594.6

Radius: 3

Gravity: 66.07 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 9.94 AU - 11.56 AU

Year: 22758 Days

Day: 16.5 Hours

Environment

Temp: -241 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 79,109,785 km

• M1: 44,580 km (0.102 R)
• M2: 219,161 km (0.053 R)
• M3: 392,545 km (0.072 R)
• M4: 597,045 km (0.117 R)
• M5: 698,772 km (0.049 R)
• M6: 1,171,950 km (0.097 R)
• M7: 1,333,067 km (0.045 R)
• M8: 1,681,779 km (0.108 R)
• M9: 1,906,625 km (0.088 R)
• M10: 3,485,930 km (0.075 R)
• M11: 4,585,025 km (0.063 R)
• M12: 5,060,148 km (0.075 R)
• M13: 8,727,540 km (0.068 R)
• M14: 9,340,143 km (0.116 R)
• M15: 9,512,031 km (0.091 R)
• M16: 9,980,721 km (0.103 R)
• M17: 12,488,430 km (0.082 R)
• M18: 13,701,669 km (0.085 R)
• M19: 13,998,172 km (0.034 R)
• M20: 19,528,057 km (0.088 R)
• M21: 22,770,292 km (0.117 R)
• M22: 22,873,814 km (0.098 R)
• M23: 23,081,755 km (0.059 R)
• M24: 23,926,085 km (0.106 R)
• M25: 27,043,106 km (0.112 R)
• M26: 31,434,253 km (0.106 R)
• M27: 39,171,305 km (0.115 R)
• M28: 39,918,097 km (0.067 R)
• M29: 42,215,472 km (0.089 R)
• M30: 42,528,281 km (0.083 R)
• M31: 49,286,514 km (0.106 R)
• M32: 58,066,264 km (0.084 R)
• M33: 66,133,778 km (0.096 R)
• M34: 71,537,103 km (0.12 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 531 - 17,137 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit