🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.51 AU - 0.77 AU

Year: 331 Days

Day: 25.8 Hours

Environment

Temp: -137 °C

Axial Tilt: 33.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 243.8

Radius: 8.9

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.94 AU - 0.98 AU

Year: 607 Days

Day: 7.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,419,767 km

• M1: 112,647 km (0.118 R)
• M2: 406,158 km (0.094 R)
• M3: 711,487 km (0.092 R)
• M4: 1,113,158 km (0.108 R)
• M5: 1,769,294 km (0.075 R)
• M6: 2,060,411 km (0.112 R)
• M7: 2,401,794 km (0.089 R)
• M8: 3,277,091 km (0.118 R)
• M9: 3,599,923 km (0.103 R)
• M10: 4,046,473 km (0.083 R)
• M11: 5,095,902 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 515.7

Radius: 9.6

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.35 AU - 1.93 AU

Year: 1356 Days

Day: 10.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,419,767 km

• M1: 122,521 km (0.063 R)
• M2: 461,958 km (0.099 R)
• M3: 1,418,786 km (0.085 R)
• M4: 1,748,799 km (0.061 R)
• M5: 3,105,203 km (0.12 R)
• M6: 3,622,363 km (0.09 R)
• M7: 4,009,522 km (0.071 R)
• M8: 6,561,811 km (0.056 R)
• M9: 7,313,690 km (0.049 R)
• M10: 8,230,576 km (0.075 R)
• M11: 8,646,159 km (0.087 R)
• M12: 9,549,730 km (0.095 R)
• M13: 11,339,519 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.3

Radius: 9

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.98 AU - 2.8 AU

Year: 2386 Days

Day: 9.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,419,767 km

• M1: 111,899 km (0.086 R)
• M2: 513,121 km (0.097 R)
• M3: 1,067,680 km (0.092 R)
• M4: 1,665,922 km (0.083 R)
• M5: 2,689,620 km (0.093 R)
• M6: 4,590,411 km (0.04 R)
• M7: 4,899,929 km (0.025 R)
• M8: 5,676,790 km (0.065 R)
• M9: 6,740,730 km (0.077 R)
• M10: 7,672,127 km (0.066 R)
• M11: 8,874,744 km (0.107 R)
• M12: 9,620,938 km (0.102 R)
• M13: 10,060,756 km (0.116 R)
• M14: 10,620,402 km (0.094 R)
• M15: 12,583,724 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.5

Radius: 11.2

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 3.2 AU - 4.08 AU

Year: 4484 Days

Day: 10.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,419,767 km

• M1: 141,520 km (0.118 R)
• M2: 608,115 km (0.117 R)
• M3: 1,045,240 km (0.1 R)
• M4: 1,519,615 km (0.106 R)
• M5: 1,917,845 km (0.076 R)
• M6: 2,963,683 km (0.057 R)
• M7: 3,442,397 km (0.082 R)
• M8: 4,333,402 km (0.117 R)
• M9: 5,577,308 km (0.054 R)
• M10: 5,976,884 km (0.099 R)
• M11: 6,367,185 km (0.1 R)
• M12: 8,546,377 km (0.106 R)
• M13: 10,132,862 km (0.117 R)
• M14: 10,729,907 km (0.078 R)
• M15: 11,519,634 km (0.1 R)
• M16: 15,379,559 km (0.12 R)
• M17: 15,902,553 km (0.09 R)
• M18: 17,150,797 km (0.093 R)
• M19: 18,698,088 km (0.038 R)
• M20: 19,054,281 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.1

Radius: 10.5

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.17 AU - 5.35 AU

Year: 6705 Days

Day: 13.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 57,419,767 km

• M1: 130,749 km (0.112 R)
• M2: 635,941 km (0.118 R)
• M3: 1,080,246 km (0.096 R)
• M4: 1,467,406 km (0.049 R)
• M5: 2,071,183 km (0.119 R)
• M6: 3,098,770 km (0.118 R)
• M7: 4,096,588 km (0.043 R)
• M8: 6,787,555 km (0.081 R)
• M9: 8,087,560 km (0.032 R)
• M10: 9,321,743 km (0.116 R)
• M11: 10,973,453 km (0.104 R)
• M12: 13,034,462 km (0.045 R)
• M13: 13,544,442 km (0.118 R)
• M14: 16,038,537 km (0.097 R)
• M15: 16,427,492 km (0.1 R)
• M16: 18,895,707 km (0.115 R)
• M17: 19,918,956 km (0.115 R)
• M18: 20,825,220 km (0.118 R)
• M19: 24,214,211 km (0.077 R)
• M20: 28,994,012 km (0.108 R)
• M21: 30,157,435 km (0.033 R)
• M22: 30,950,154 km (0.111 R)
• M23: 35,123,785 km (0.096 R)
• M24: 38,259,057 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 672.2

Radius: 5.6

Gravity: 21.43 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 6.84 AU - 8.14 AU

Year: 13235 Days

Day: 19.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 57,419,767 km

• M1: 69,862 km (0.064 R)
• M2: 295,905 km (0.084 R)
• M3: 965,804 km (0.119 R)
• M4: 1,262,307 km (0.058 R)
• M5: 1,439,580 km (0.091 R)
• M6: 1,745,358 km (0.027 R)
• M7: 3,142,602 km (0.081 R)
• M8: 3,993,366 km (0.06 R)
• M9: 4,566,026 km (0.112 R)
• M10: 5,055,510 km (0.05 R)
• M11: 5,615,605 km (0.058 R)
• M12: 5,798,713 km (0.079 R)
• M13: 5,986,009 km (0.11 R)
• M14: 6,177,195 km (0.081 R)
• M15: 6,734,597 km (0.102 R)
• M16: 7,368,294 km (0.106 R)
• M17: 9,611,214 km (0.114 R)
• M18: 11,317,378 km (0.111 R)
• M19: 11,848,151 km (0.107 R)
• M20: 12,895,935 km (0.067 R)
• M21: 15,033,240 km (0.109 R)
• M22: 15,458,696 km (0.094 R)
• M23: 15,746,821 km (0.094 R)
• M24: 18,262,010 km (0.12 R)
• M25: 18,909,620 km (0.104 R)
• M26: 21,834,258 km (0.114 R)
• M27: 23,309,293 km (0.08 R)
• M28: 30,887,772 km (0.109 R)
• M29: 32,272,599 km (0.075 R)
• M30: 35,414,304 km (0.071 R)
• M31: 38,753,777 km (0.046 R)
• M32: 42,719,617 km (0.096 R)
• M33: 43,572,624 km (0.056 R)
• M34: 43,859,403 km (0.087 R)
• M35: 45,902,611 km (0.049 R)
• M36: 52,249,899 km (0.116 R)
• M37: 53,552,896 km (0.114 R)
• M38: 54,047,168 km (0.086 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 423 - 13,900 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit