🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.49

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.79 AU - 0.87 AU

Year: 271 Days

Day: 36.1 Hours

Environment

Temp: 125 °C

Axial Tilt: 39.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 73,985,206 km

• M1: 42,785 km (0.115 R)
• M2: 68,217 km (0.086 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.12

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.43 AU - 1.61 AU

Year: 671 Days

Day: 12.2 Hours

Environment

Temp: -36 °C

Axial Tilt: 45.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 73,985,206 km

• M1: 40,990 km (0.109 R)
• M2: 1,418,786 km (0.032 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.75 AU - 2.85 AU

Year: 1249 Days

Day: 34.7 Hours

Environment

Temp: -78 °C

Axial Tilt: 31.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 73,985,206 km

• M1: 1,276,818 km (0.037 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.2

Radius: 8.2

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 6.64 AU - 8.86 AU

Year: 7727 Days

Day: 11.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 73,985,206 km

• M1: 102,026 km (0.113 R)
• M2: 403,765 km (0.096 R)
• M3: 721,062 km (0.045 R)
• M4: 1,186,012 km (0.111 R)
• M5: 1,689,708 km (0.101 R)
• M6: 2,329,239 km (0.117 R)
• M7: 2,587,295 km (0.071 R)
• M8: 3,141,256 km (0.095 R)
• M9: 3,635,079 km (0.099 R)
• M10: 4,032,411 km (0.113 R)
• M11: 4,304,828 km (0.077 R)
• M12: 4,669,398 km (0.1 R)
• M13: 5,550,231 km (0.106 R)
• M14: 5,919,438 km (0.077 R)
• M15: 6,914,713 km (0.077 R)
• M16: 8,489,978 km (0.116 R)
• M17: 9,233,330 km (0.097 R)
• M18: 10,521,218 km (0.079 R)
• M19: 12,026,023 km (0.087 R)
• M20: 12,856,441 km (0.083 R)
• M21: 14,173,052 km (0.08 R)
• M22: 16,816,297 km (0.05 R)
• M23: 18,727,858 km (0.071 R)
• M24: 20,127,795 km (0.104 R)
• M25: 20,926,797 km (0.074 R)
• M26: 23,134,563 km (0.109 R)
• M27: 27,122,393 km (0.111 R)
• M28: 28,456,806 km (0.093 R)
• M29: 30,115,248 km (0.044 R)
• M30: 32,524,223 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 595.1

Radius: 8.5

Gravity: 8.24 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 7.45 AU - 11.77 AU

Year: 10670 Days

Day: 10.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 73,985,206 km

• M1: 151,991 km (0.119 R)
• M2: 540,796 km (0.048 R)
• M3: 877,392 km (0.082 R)
• M4: 1,470,996 km (0.074 R)
• M5: 2,011,792 km (0.062 R)
• M6: 2,910,726 km (0.11 R)
• M7: 3,536,194 km (0.12 R)
• M8: 4,653,691 km (0.116 R)
• M9: 5,990,946 km (0.06 R)
• M10: 8,429,391 km (0.089 R)
• M11: 9,892,309 km (0.109 R)
• M12: 11,628,093 km (0.098 R)
• M13: 12,714,772 km (0.098 R)
• M14: 25,336,045 km (0.094 R)
• M15: 27,057,916 km (0.1 R)
• M16: 28,248,267 km (0.103 R)
• M17: 31,160,937 km (0.099 R)
• M18: 34,039,350 km (0.079 R)
• M19: 38,682,419 km (0.096 R)
• M20: 40,575,131 km (0.079 R)

Planet 6 - Ice Giant

Semi-Major Axis: 14.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 622.4

Radius: 4.6

Gravity: 29.41 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 13.15 AU - 15.75 AU

Year: 19673 Days

Day: 23.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 73,985,206 km

• M1: 57,446 km (0.063 R)
• M2: 588,967 km (0.108 R)
• M3: 1,337,405 km (0.077 R)
• M4: 1,588,580 km (0.03 R)
• M5: 2,722,532 km (0.052 R)
• M6: 2,945,283 km (0.075 R)
• M7: 3,598,876 km (0.116 R)
• M8: 4,859,836 km (0.104 R)
• M9: 6,432,260 km (0.117 R)
• M10: 6,918,004 km (0.094 R)
• M11: 7,286,164 km (0.094 R)
• M12: 7,667,489 km (0.047 R)
• M13: 8,573,753 km (0.088 R)
• M14: 9,775,622 km (0.109 R)
• M15: 13,688,056 km (0.043 R)
• M16: 14,489,751 km (0.102 R)
• M17: 17,584,183 km (0.109 R)
• M18: 19,510,554 km (0.079 R)
• M19: 26,125,323 km (0.12 R)
• M20: 29,571,460 km (0.028 R)
• M21: 35,967,367 km (0.077 R)
• M22: 37,069,305 km (0.042 R)
• M23: 43,535,524 km (0.115 R)
• M24: 52,273,386 km (0.047 R)
• M25: 63,694,136 km (0.088 R)
• M26: 63,893,999 km (0.109 R)
• M27: 71,804,435 km (0.061 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 987.7

Radius: 7.6

Gravity: 17.1 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 15.92 AU - 16.74 AU

Year: 23635 Days

Day: 20.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 73,985,206 km

• M1: 113,246 km (0.088 R)
• M2: 375,191 km (0.082 R)
• M3: 1,075,309 km (0.089 R)
• M4: 2,686,179 km (0.076 R)
• M5: 2,981,934 km (0.12 R)
• M6: 3,389,589 km (0.112 R)
• M7: 4,070,558 km (0.043 R)
• M8: 9,196,080 km (0.088 R)
• M9: 11,666,240 km (0.114 R)
• M10: 12,604,069 km (0.091 R)
• M11: 14,223,766 km (0.115 R)
• M12: 15,632,977 km (0.095 R)
• M13: 30,143,373 km (0.075 R)
• M14: 36,673,619 km (0.092 R)
• M15: 36,977,153 km (0.113 R)
• M16: 41,241,141 km (0.104 R)
• M17: 42,397,682 km (0.117 R)
• M18: 43,406,271 km (0.065 R)
• M19: 48,143,138 km (0.041 R)
• M20: 49,795,596 km (0.069 R)
• M21: 80,586,877 km (0.118 R)
• M22: 80,843,138 km (0.072 R)
• M23: 86,890,333 km (0.109 R)
• M24: 92,387,905 km (0.097 R)
• M25: 94,650,423 km (0.045 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 394.8

Radius: 3.8

Gravity: 27.34 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 14.36 AU - 19.78 AU

Year: 25259 Days

Day: 17.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 73,985,206 km

• M1: 50,414 km (0.092 R)
• M2: 291,865 km (0.05 R)
• M3: 485,744 km (0.113 R)
• M4: 647,609 km (0.105 R)
• M5: 900,729 km (0.099 R)
• M6: 1,202,468 km (0.09 R)
• M7: 2,023,760 km (0.06 R)
• M8: 2,165,728 km (0.054 R)
• M9: 2,424,981 km (0.038 R)
• M10: 3,299,531 km (0.075 R)
• M11: 4,466,992 km (0.083 R)
• M12: 4,743,898 km (0.114 R)
• M13: 6,388,577 km (0.049 R)
• M14: 7,011,951 km (0.11 R)
• M15: 7,433,518 km (0.063 R)
• M16: 7,674,820 km (0.098 R)
• M17: 8,071,852 km (0.077 R)
• M18: 8,639,875 km (0.084 R)
• M19: 9,456,829 km (0.094 R)
• M20: 10,869,033 km (0.046 R)
• M21: 11,054,983 km (0.026 R)
• M22: 14,177,091 km (0.107 R)
• M23: 16,501,842 km (0.112 R)
• M24: 22,786,598 km (0.086 R)
• M25: 23,708,420 km (0.119 R)
• M26: 24,654,776 km (0.054 R)
• M27: 29,525,384 km (0.114 R)
• M28: 31,994,497 km (0.114 R)
• M29: 38,331,014 km (0.06 R)
• M30: 40,963,637 km (0.093 R)
• M31: 45,775,602 km (0.118 R)
• M32: 51,995,732 km (0.03 R)
• M33: 55,215,527 km (0.077 R)
• M34: 55,764,701 km (0.059 R)
• M35: 69,424,183 km (0.119 R)
• M36: 71,139,023 km (0.084 R)
• M37: 72,443,367 km (0.119 R)

Kuiper Belt

Range: 30.6 - 54.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 336 - 17,002 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit