🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.42 AU - 0.62 AU

Year: 246 Days

Day: 21 Hours

Environment

Temp: -127 °C

Axial Tilt: 34.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 72,716,055 km

• M1: 18,999 km (0.086 R)
• M2: 38,297 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757.8

Radius: 12.4

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.8 AU - 0.94 AU

Year: 532 Days

Day: 12.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,716,055 km

• M1: 154,235 km (0.074 R)
• M2: 576,999 km (0.101 R)
• M3: 1,258,716 km (0.113 R)
• M4: 1,789,340 km (0.104 R)
• M5: 2,236,339 km (0.119 R)
• M6: 2,662,094 km (0.105 R)
• M7: 3,372,684 km (0.061 R)
• M8: 3,882,065 km (0.102 R)
• M9: 4,397,579 km (0.096 R)
• M10: 4,926,108 km (0.12 R)
• M11: 5,324,487 km (0.117 R)
• M12: 5,726,606 km (0.089 R)
• M13: 6,751,202 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181

Radius: 12

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.06 AU - 1.16 AU

Year: 767 Days

Day: 9.1 Hours

Environment

Temp: -173 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,716,055 km

• M1: 149,747 km (0.096 R)
• M2: 792,869 km (0.112 R)
• M3: 1,181,973 km (0.076 R)
• M4: 2,401,794 km (0.076 R)
• M5: 2,905,789 km (0.045 R)
• M6: 4,194,874 km (0.069 R)
• M7: 4,797,305 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.2

Radius: 11.4

Gravity: 7.1 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.13 AU - 1.41 AU

Year: 939 Days

Day: 11.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,716,055 km

• M1: 141,819 km (0.078 R)
• M2: 569,669 km (0.079 R)
• M3: 946,955 km (0.098 R)
• M4: 1,335,311 km (0.073 R)
• M5: 1,766,601 km (0.112 R)
• M6: 2,129,825 km (0.072 R)
• M7: 2,507,859 km (0.048 R)
• M8: 3,091,739 km (0.093 R)
• M9: 4,374,541 km (0.12 R)
• M10: 5,165,166 km (0.093 R)
• M11: 6,179,439 km (0.04 R)
• M12: 7,321,918 km (0.097 R)
• M13: 7,878,422 km (0.062 R)
• M14: 10,298,766 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.6

Radius: 10.3

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 2.51 AU - 2.95 AU

Year: 2959 Days

Day: 12.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,716,055 km

• M1: 131,197 km (0.038 R)
• M2: 546,780 km (0.094 R)
• M3: 1,069,326 km (0.097 R)
• M4: 1,405,023 km (0.075 R)
• M5: 2,270,746 km (0.071 R)
• M6: 2,902,348 km (0.076 R)
• M7: 3,277,989 km (0.116 R)
• M8: 4,537,303 km (0.058 R)
• M9: 4,974,129 km (0.063 R)
• M10: 5,514,776 km (0.091 R)
• M11: 6,121,545 km (0.057 R)
• M12: 6,627,036 km (0.077 R)
• M13: 8,827,172 km (0.046 R)
• M14: 9,845,335 km (0.1 R)
• M15: 11,349,990 km (0.083 R)
• M16: 11,812,846 km (0.05 R)
• M17: 16,086,409 km (0.091 R)
• M18: 17,435,033 km (0.108 R)
• M19: 20,727,383 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.7

Radius: 11.4

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.36 AU - 3.64 AU

Year: 3409 Days

Day: 11.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,716,055 km

• M1: 168,148 km (0.066 R)
• M2: 559,346 km (0.073 R)
• M3: 1,410,110 km (0.112 R)
• M4: 1,808,040 km (0.113 R)
• M5: 2,810,196 km (0.117 R)
• M6: 3,907,048 km (0.074 R)
• M7: 4,348,511 km (0.062 R)
• M8: 7,764,877 km (0.081 R)
• M9: 9,455,483 km (0.081 R)
• M10: 11,699,601 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 722.6

Radius: 8

Gravity: 11.29 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 6.24 AU - 6.42 AU

Year: 10448 Days

Day: 15.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 72,716,055 km

• M1: 100,081 km (0.104 R)
• M2: 406,757 km (0.086 R)
• M3: 686,056 km (0.086 R)
• M4: 1,022,053 km (0.111 R)
• M5: 1,522,158 km (0.081 R)
• M6: 1,967,661 km (0.05 R)
• M7: 2,305,004 km (0.03 R)
• M8: 2,557,824 km (0.063 R)
• M9: 4,113,792 km (0.11 R)
• M10: 5,371,910 km (0.034 R)
• M11: 5,962,373 km (0.088 R)
• M12: 6,750,604 km (0.105 R)
• M13: 7,522,080 km (0.052 R)
• M14: 7,777,444 km (0.103 R)
• M15: 9,287,634 km (0.119 R)
• M16: 9,631,560 km (0.1 R)
• M17: 10,983,924 km (0.032 R)
• M18: 11,819,429 km (0.088 R)
• M19: 12,816,798 km (0.041 R)
• M20: 14,125,031 km (0.072 R)
• M21: 14,978,038 km (0.061 R)
• M22: 17,668,705 km (0.082 R)
• M23: 18,814,176 km (0.092 R)
• M24: 19,604,801 km (0.085 R)
• M25: 21,252,322 km (0.1 R)
• M26: 22,196,734 km (0.119 R)
• M27: 23,438,845 km (0.082 R)
• M28: 25,197,966 km (0.111 R)
• M29: 27,745,169 km (0.049 R)
• M30: 29,290,216 km (0.049 R)
• M31: 31,769,352 km (0.089 R)
• M32: 38,762,304 km (0.112 R)
• M33: 39,783,011 km (0.039 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 466.6

Radius: 7.3

Gravity: 8.76 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 9.78 AU - 11.42 AU

Year: 22640 Days

Day: 19.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 72,716,055 km

• M1: 133,890 km (0.062 R)
• M2: 507,286 km (0.077 R)
• M3: 782,696 km (0.043 R)
• M4: 1,323,642 km (0.119 R)
• M5: 1,936,395 km (0.051 R)
• M6: 2,426,178 km (0.097 R)
• M7: 2,895,168 km (0.086 R)
• M8: 5,587,630 km (0.099 R)
• M9: 6,842,008 km (0.059 R)
• M10: 8,687,448 km (0.1 R)
• M11: 10,010,790 km (0.115 R)
• M12: 17,567,428 km (0.096 R)
• M13: 18,078,155 km (0.12 R)
• M14: 18,337,109 km (0.078 R)
• M15: 19,398,057 km (0.114 R)
• M16: 19,943,640 km (0.103 R)
• M17: 21,933,741 km (0.101 R)
• M18: 30,363,431 km (0.1 R)
• M19: 32,860,519 km (0.051 R)
• M20: 38,829,923 km (0.076 R)
• M21: 42,829,272 km (0.105 R)
• M22: 53,743,633 km (0.107 R)
• M23: 55,726,104 km (0.096 R)
• M24: 60,219,875 km (0.117 R)
• M25: 64,747,454 km (0.109 R)
• M26: 65,557,228 km (0.034 R)
• M27: 70,132,828 km (0.064 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: 272 - 18,710 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit