🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.35

Radius: 1.13

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.57 AU - 0.73 AU

Year: 333 Days

Day: 45.8 Hours

Environment

Temp: -126 °C

Axial Tilt: 150.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 81,233,094 km

• M1: 176,825 km (0.098 R)
• M2: 209,587 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.5

Radius: 13

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.98 AU - 1.28 AU

Year: 764 Days

Day: 14 Hours

Environment

Temp: -171 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,233,094 km

• M1: 161,715 km (0.07 R)
• M2: 606,320 km (0.065 R)
• M3: 1,178,083 km (0.076 R)
• M4: 1,747,752 km (0.104 R)
• M5: 2,210,159 km (0.09 R)
• M6: 2,697,399 km (0.088 R)
• M7: 3,428,035 km (0.066 R)
• M8: 4,010,719 km (0.074 R)
• M9: 5,176,535 km (0.082 R)
• M10: 6,877,762 km (0.108 R)
• M11: 7,390,135 km (0.081 R)
• M12: 7,904,153 km (0.113 R)
• M13: 8,367,009 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.4

Radius: 13.5

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.42 AU - 2.14 AU

Year: 1510 Days

Day: 5.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,233,094 km

• M1: 167,849 km (0.095 R)
• M2: 746,793 km (0.094 R)
• M3: 1,583,194 km (0.113 R)
• M4: 2,389,377 km (0.087 R)
• M5: 2,935,110 km (0.103 R)
• M6: 3,816,391 km (0.095 R)
• M7: 5,619,345 km (0.091 R)
• M8: 6,304,204 km (0.045 R)
• M9: 6,891,525 km (0.114 R)
• M10: 7,723,588 km (0.063 R)

Asteroid Belt

Center: 3.17 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.9

Radius: 12.2

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.71 AU - 5.41 AU

Year: 6191 Days

Day: 7.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,233,094 km

• M1: 152,141 km (0.04 R)
• M2: 624,870 km (0.105 R)
• M3: 1,058,854 km (0.055 R)
• M4: 1,439,281 km (0.058 R)
• M5: 2,737,940 km (0.093 R)
• M6: 3,299,381 km (0.116 R)
• M7: 5,163,221 km (0.1 R)
• M8: 6,882,699 km (0.079 R)
• M9: 7,681,701 km (0.11 R)
• M10: 8,175,673 km (0.032 R)
• M11: 9,071,914 km (0.087 R)
• M12: 11,193,062 km (0.088 R)
• M13: 11,782,777 km (0.088 R)
• M14: 13,373,451 km (0.094 R)
• M15: 13,882,533 km (0.082 R)
• M16: 14,670,465 km (0.106 R)
• M17: 15,322,113 km (0.117 R)
• M18: 17,816,807 km (0.071 R)
• M19: 21,595,201 km (0.098 R)
• M20: 23,450,663 km (0.074 R)
• M21: 25,255,561 km (0.03 R)
• M22: 25,955,679 km (0.111 R)
• M23: 26,509,191 km (0.062 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 16.2

Radius: 3.8

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 6.69 AU - 10.11 AU

Year: 15479 Days

Day: 19 Hours

Environment

Temp: -233 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,233,094 km

• M1: 47,273 km (0.086 R)
• M2: 626,665 km (0.111 R)
• M3: 1,538,016 km (0.117 R)
• M4: 2,540,920 km (0.08 R)
• M5: 3,915,425 km (0.073 R)
• M6: 4,236,013 km (0.115 R)
• M7: 6,265,308 km (0.062 R)
• M8: 7,016,290 km (0.12 R)
• M9: 8,236,410 km (0.069 R)
• M10: 11,009,356 km (0.042 R)
• M11: 12,476,462 km (0.115 R)
• M12: 13,256,765 km (0.095 R)
• M13: 14,022,856 km (0.09 R)
• M14: 14,534,181 km (0.025 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 373.1

Radius: 7.8

Gravity: 6.13 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 8.09 AU - 9.59 AU

Year: 16711 Days

Day: 21.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 81,233,094 km

• M1: 104,270 km (0.072 R)
• M2: 550,520 km (0.071 R)
• M3: 886,667 km (0.094 R)
• M4: 1,132,755 km (0.058 R)
• M5: 1,951,355 km (0.103 R)
• M6: 2,203,128 km (0.084 R)
• M7: 2,476,593 km (0.062 R)
• M8: 3,188,679 km (0.076 R)
• M9: 4,144,908 km (0.101 R)
• M10: 6,771,248 km (0.098 R)
• M11: 7,924,050 km (0.107 R)
• M12: 8,761,947 km (0.074 R)
• M13: 9,760,962 km (0.059 R)
• M14: 14,387,575 km (0.115 R)
• M15: 22,395,848 km (0.104 R)
• M16: 23,685,532 km (0.118 R)
• M17: 25,121,522 km (0.103 R)
• M18: 29,449,837 km (0.092 R)
• M19: 33,891,398 km (0.109 R)
• M20: 36,584,010 km (0.071 R)
• M21: 38,240,208 km (0.089 R)
• M22: 41,292,154 km (0.083 R)
• M23: 42,668,155 km (0.115 R)
• M24: 52,366,585 km (0.12 R)
• M25: 54,304,177 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 660.2

Radius: 6.1

Gravity: 17.74 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 8.83 AU - 12.71 AU

Year: 22473 Days

Day: 21.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 81,233,094 km

• M1: 76,145 km (0.072 R)
• M2: 378,034 km (0.099 R)
• M3: 632,500 km (0.088 R)
• M4: 1,050,476 km (0.029 R)
• M5: 1,298,809 km (0.1 R)
• M6: 1,518,867 km (0.065 R)
• M7: 2,564,556 km (0.095 R)
• M8: 3,645,700 km (0.113 R)
• M9: 4,671,194 km (0.044 R)
• M10: 4,964,405 km (0.072 R)
• M11: 5,751,589 km (0.116 R)
• M12: 6,174,951 km (0.089 R)
• M13: 8,884,019 km (0.057 R)
• M14: 11,819,578 km (0.086 R)
• M15: 12,090,051 km (0.06 R)
• M16: 12,784,335 km (0.091 R)
• M17: 14,252,189 km (0.045 R)
• M18: 14,635,908 km (0.081 R)
• M19: 15,828,801 km (0.063 R)
• M20: 16,999,404 km (0.061 R)
• M21: 17,870,064 km (0.1 R)
• M22: 18,587,685 km (0.08 R)
• M23: 21,651,300 km (0.109 R)
• M24: 22,466,758 km (0.038 R)
• M25: 25,594,251 km (0.086 R)
• M26: 25,820,144 km (0.074 R)
• M27: 29,122,965 km (0.108 R)
• M28: 37,707,190 km (0.042 R)
• M29: 48,350,032 km (0.071 R)
• M30: 49,042,221 km (0.111 R)
• M31: 49,565,515 km (0.109 R)
• M32: 60,231,095 km (0.105 R)
• M33: 63,271,971 km (0.082 R)
• M34: 70,098,421 km (0.098 R)
• M35: 75,528,823 km (0.108 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: 406 - 13,388 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit