🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.55 AU - 0.57 AU

Year: 154 Days

Day: 44.6 Hours

Environment

Temp: 167 °C

Axial Tilt: 49.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.74 AU - 1.86 AU

Year: 887 Days

Day: 13.1 Hours

Environment

Temp: -66 °C

Axial Tilt: 10 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 3.58 AU - 5.04 AU

Year: 3285 Days

Day: 42.1 Hours

Environment

Temp: -124 °C

Axial Tilt: 7.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113

Radius: 8.7

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 5.73 AU - 6.97 AU

Year: 5874 Days

Day: 12.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 107,940,263 km

• M1: 108,309 km (0.098 R)
• M2: 437,873 km (0.114 R)
• M3: 942,167 km (0.064 R)
• M4: 1,669,662 km (0.088 R)
• M5: 1,974,991 km (0.09 R)
• M6: 2,385,787 km (0.038 R)
• M7: 3,414,272 km (0.054 R)
• M8: 4,047,670 km (0.117 R)
• M9: 4,519,202 km (0.114 R)
• M10: 10,288,893 km (0.045 R)
• M11: 10,895,063 km (0.026 R)
• M12: 15,284,265 km (0.032 R)
• M13: 16,325,466 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.3

Radius: 14.8

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 6.65 AU - 7.07 AU

Year: 6596 Days

Day: 5.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 107,940,263 km

• M1: 184,005 km (0.113 R)
• M2: 912,697 km (0.099 R)
• M3: 1,596,957 km (0.083 R)
• M4: 3,121,210 km (0.039 R)
• M5: 3,600,970 km (0.104 R)
• M6: 4,192,331 km (0.106 R)
• M7: 4,802,391 km (0.055 R)
• M8: 5,421,726 km (0.052 R)
• M9: 6,394,860 km (0.112 R)
• M10: 7,574,888 km (0.09 R)
• M11: 9,036,011 km (0.093 R)
• M12: 12,206,139 km (0.075 R)
• M13: 13,688,654 km (0.082 R)
• M14: 14,208,656 km (0.091 R)
• M15: 16,474,615 km (0.082 R)
• M16: 16,955,273 km (0.058 R)
• M17: 18,057,211 km (0.072 R)
• M18: 20,648,844 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.9

Radius: 9.8

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 8.8 AU - 10.54 AU

Year: 11039 Days

Day: 12.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 107,940,263 km

• M1: 121,922 km (0.116 R)
• M2: 463,155 km (0.044 R)
• M3: 1,668,615 km (0.107 R)
• M4: 3,289,657 km (0.079 R)
• M5: 4,581,584 km (0.097 R)
• M6: 5,309,976 km (0.091 R)
• M7: 6,113,766 km (0.091 R)
• M8: 7,671,528 km (0.113 R)
• M9: 8,742,350 km (0.062 R)
• M10: 11,606,700 km (0.043 R)
• M11: 13,191,241 km (0.094 R)
• M12: 15,632,080 km (0.086 R)
• M13: 16,032,553 km (0.077 R)
• M14: 17,631,755 km (0.11 R)
• M15: 18,433,150 km (0.071 R)
• M16: 19,487,815 km (0.068 R)
• M17: 22,132,556 km (0.058 R)
• M18: 26,205,657 km (0.075 R)
• M19: 28,319,475 km (0.112 R)
• M20: 30,131,704 km (0.099 R)
• M21: 30,752,535 km (0.106 R)
• M22: 35,111,817 km (0.092 R)
• M23: 38,156,283 km (0.101 R)
• M24: 39,249,844 km (0.084 R)
• M25: 39,990,353 km (0.095 R)
• M26: 42,267,981 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 387.2

Radius: 6.4

Gravity: 9.45 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 11.87 AU - 15.57 AU

Year: 18655 Days

Day: 16.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 107,940,263 km

• M1: 79,736 km (0.105 R)
• M2: 349,012 km (0.103 R)
• M3: 566,677 km (0.101 R)
• M4: 838,346 km (0.103 R)
• M5: 1,097,749 km (0.075 R)
• M6: 1,340,696 km (0.111 R)
• M7: 2,901,451 km (0.093 R)
• M8: 3,556,091 km (0.084 R)
• M9: 3,776,149 km (0.072 R)
• M10: 4,915,337 km (0.101 R)
• M11: 5,841,946 km (0.111 R)
• M12: 8,130,046 km (0.112 R)
• M13: 10,388,974 km (0.088 R)
• M14: 14,652,962 km (0.111 R)
• M15: 15,510,008 km (0.057 R)
• M16: 15,950,873 km (0.035 R)
• M17: 18,690,758 km (0.099 R)
• M18: 22,748,151 km (0.105 R)
• M19: 24,188,480 km (0.087 R)
• M20: 25,181,810 km (0.089 R)
• M21: 26,932,553 km (0.107 R)
• M22: 33,393,386 km (0.027 R)
• M23: 36,914,920 km (0.081 R)
• M24: 38,097,491 km (0.118 R)
• M25: 40,954,511 km (0.058 R)
• M26: 57,750,912 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 899.2

Radius: 5.2

Gravity: 33.25 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 14.54 AU - 22.7 AU

Year: 29495 Days

Day: 16.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 107,940,263 km

• M1: 133,292 km (0.114 R)
• M2: 360,680 km (0.026 R)
• M3: 693,835 km (0.032 R)
• M4: 1,063,641 km (0.102 R)
• M5: 2,072,230 km (0.094 R)
• M6: 2,806,007 km (0.114 R)
• M7: 3,404,399 km (0.096 R)
• M8: 4,267,279 km (0.106 R)
• M9: 6,463,675 km (0.108 R)
• M10: 9,443,216 km (0.119 R)
• M11: 10,293,231 km (0.102 R)
• M12: 11,408,184 km (0.086 R)
• M13: 13,228,042 km (0.117 R)
• M14: 13,957,781 km (0.106 R)
• M15: 15,585,555 km (0.045 R)
• M16: 16,307,365 km (0.084 R)
• M17: 17,431,443 km (0.097 R)
• M18: 18,706,466 km (0.1 R)
• M19: 19,213,004 km (0.086 R)
• M20: 19,521,325 km (0.119 R)
• M21: 22,788,094 km (0.117 R)
• M22: 24,913,431 km (0.104 R)
• M23: 31,078,509 km (0.113 R)
• M24: 39,001,661 km (0.081 R)
• M25: 39,994,392 km (0.108 R)
• M26: 41,344,064 km (0.095 R)
• M27: 54,883,719 km (0.12 R)
• M28: 62,868,056 km (0.072 R)
• M29: 66,782,584 km (0.03 R)
• M30: 72,332,814 km (0.029 R)
• M31: 75,857,490 km (0.115 R)
• M32: 84,890,509 km (0.085 R)
• M33: 100,050,158 km (0.113 R)
• M34: 103,787,562 km (0.063 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 191 - 16,846 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit