🌌 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: 4.89

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.64 AU - 1.02 AU

Year: 270 Days

Day: 20.1 Hours

Environment

Temp: 139 °C

Axial Tilt: 164.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 47,161,190 km

• M1: 137,032 km (0.081 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1 AU - 1.06 AU

Year: 373 Days

Day: 15.5 Hours

Environment

Temp: 161 °C

Axial Tilt: 37.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.14

Radius: 0.46

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.05 AU - 1.63 AU

Year: 553 Days

Day: 31.3 Hours

Environment

Temp: -4 °C

Axial Tilt: 35.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 47,161,190 km

• M1: 295,755 km (0.108 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.46 AU - 1.5 AU

Year: 642 Days

Day: 25.6 Hours

Environment

Temp: -24 °C

Axial Tilt: 15.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 47,161,190 km

• M1: 798,553 km (0.08 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.35

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.77 AU - 3.53 AU

Year: 1993 Days

Day: 47.1 Hours

Environment

Temp: -91 °C

Axial Tilt: 25.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.98

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 3.5 AU - 5.38 AU

Year: 3335 Days

Day: 30 Hours

Environment

Temp: -124 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 9.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.9

Radius: 11.6

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 8.58 AU - 10.72 AU

Year: 10685 Days

Day: 13 Hours

Environment

Temp: -171 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (60)

Outer Limit: 47,161,190 km

• M1: 178,470 km (0.063 R)
• M2: 337,194 km (0.093 R)
• M3: 418,126 km (0.065 R)
• M4: 527,033 km (0.079 R)
• M5: 647,460 km (0.061 R)
• M6: 812,765 km (0.076 R)
• M7: 919,129 km (0.058 R)
• M8: 1,005,298 km (0.116 R)
• M9: 1,508,844 km (0.118 R)
• M10: 2,352,875 km (0.116 R)
• M11: 2,705,029 km (0.119 R)
• M12: 2,813,936 km (0.109 R)
• M13: 3,168,782 km (0.096 R)
• M14: 3,577,783 km (0.036 R)
• M15: 3,819,084 km (0.032 R)
• M16: 4,793,415 km (0.094 R)
• M17: 4,948,249 km (0.094 R)
• M18: 5,354,108 km (0.118 R)
• M19: 5,561,151 km (0.108 R)
• M20: 6,709,465 km (0.113 R)
• M21: 7,032,895 km (0.08 R)
• M22: 7,158,707 km (0.112 R)
• M23: 7,540,630 km (0.036 R)
• M24: 8,350,852 km (0.106 R)
• M25: 8,698,817 km (0.101 R)
• M26: 9,051,718 km (0.102 R)
• M27: 9,161,224 km (0.093 R)
• M28: 9,687,509 km (0.042 R)
• M29: 10,109,974 km (0.105 R)
• M30: 10,337,662 km (0.089 R)
• M31: 10,538,422 km (0.097 R)
• M32: 11,501,982 km (0.035 R)
• M33: 11,919,360 km (0.119 R)
• M34: 12,280,938 km (0.1 R)
• M35: 12,646,256 km (0.105 R)
• M36: 12,768,926 km (0.088 R)
• M37: 13,294,164 km (0.086 R)
• M38: 13,575,259 km (0.118 R)
• M39: 15,074,379 km (0.118 R)
• M40: 15,629,537 km (0.112 R)
• M41: 15,860,067 km (0.115 R)
• M42: 16,324,568 km (0.12 R)
• M43: 16,625,559 km (0.11 R)
• M44: 16,793,558 km (0.099 R)
• M45: 17,131,200 km (0.09 R)
• M46: 19,028,550 km (0.074 R)
• M47: 19,239,483 km (0.108 R)
• M48: 19,522,073 km (0.116 R)
• M49: 19,806,010 km (0.111 R)
• M50: 20,306,116 km (0.053 R)
• M51: 20,557,739 km (0.067 R)
• M52: 21,209,687 km (0.08 R)
• M53: 21,428,399 km (0.099 R)
• M54: 22,052,521 km (0.099 R)
• M55: 22,607,978 km (0.113 R)
• M56: 23,205,771 km (0.078 R)
• M57: 23,581,860 km (0.079 R)
• M58: 24,645,950 km (0.102 R)
• M59: 24,722,544 km (0.04 R)
• M60: 25,998,016 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 198.4

Radius: 7.9

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 10.37 AU - 17.09 AU

Year: 18134 Days

Day: 23.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 47,161,190 km

• M1: 114,891 km (0.106 R)
• M2: 419,772 km (0.088 R)
• M3: 608,714 km (0.074 R)
• M4: 721,959 km (0.1 R)
• M5: 789,877 km (0.116 R)
• M6: 932,743 km (0.066 R)
• M7: 1,223,561 km (0.086 R)
• M8: 1,520,064 km (0.101 R)
• M9: 1,586,485 km (0.047 R)
• M10: 1,862,344 km (0.075 R)
• M11: 2,458,641 km (0.065 R)
• M12: 2,777,883 km (0.076 R)
• M13: 3,054,041 km (0.076 R)
• M14: 3,138,563 km (0.081 R)
• M15: 3,514,054 km (0.032 R)
• M16: 3,573,145 km (0.118 R)
• M17: 3,812,801 km (0.038 R)
• M18: 4,088,659 km (0.097 R)
• M19: 4,659,674 km (0.113 R)
• M20: 4,724,750 km (0.093 R)
• M21: 6,051,832 km (0.108 R)
• M22: 6,482,076 km (0.068 R)
• M23: 7,258,788 km (0.047 R)
• M24: 7,638,916 km (0.061 R)
• M25: 8,142,911 km (0.074 R)
• M26: 8,498,057 km (0.098 R)
• M27: 8,777,805 km (0.093 R)
• M28: 8,939,071 km (0.045 R)
• M29: 9,718,177 km (0.095 R)
• M30: 10,010,790 km (0.063 R)
• M31: 10,862,601 km (0.086 R)
• M32: 11,560,624 km (0.095 R)
• M33: 12,408,395 km (0.12 R)
• M34: 12,680,364 km (0.047 R)
• M35: 13,928,011 km (0.069 R)
• M36: 14,685,574 km (0.115 R)
• M37: 14,829,188 km (0.112 R)
• M38: 16,092,841 km (0.077 R)
• M39: 17,188,795 km (0.115 R)
• M40: 17,340,039 km (0.106 R)
• M41: 17,441,167 km (0.027 R)
• M42: 18,103,287 km (0.045 R)
• M43: 18,205,911 km (0.101 R)
• M44: 18,360,147 km (0.055 R)
• M45: 18,566,592 km (0.102 R)
• M46: 20,032,352 km (0.07 R)
• M47: 20,511,514 km (0.07 R)
• M48: 20,725,588 km (0.046 R)
• M49: 22,355,008 km (0.099 R)
• M50: 24,534,051 km (0.09 R)
• M51: 25,504,941 km (0.068 R)
• M52: 26,430,204 km (0.072 R)
• M53: 26,546,741 km (0.046 R)
• M54: 26,663,277 km (0.113 R)
• M55: 27,190,011 km (0.11 R)
• M56: 27,602,154 km (0.09 R)
• M57: 30,605,480 km (0.116 R)
• M58: 32,269,757 km (0.104 R)
• M59: 32,394,222 km (0.085 R)
• M60: 32,893,580 km (0.114 R)
• M61: 36,007,759 km (0.072 R)
• M62: 36,072,235 km (0.104 R)
• M63: 36,201,338 km (0.074 R)
• M64: 36,849,546 km (0.088 R)
• M65: 36,979,696 km (0.099 R)
• M66: 37,763,439 km (0.038 R)
• M67: 38,816,907 km (0.08 R)
• M68: 39,480,374 km (0.118 R)
• M69: 40,214,301 km (0.086 R)
• M70: 40,415,361 km (0.105 R)
• M71: 41,628,151 km (0.077 R)
• M72: 41,899,222 km (0.097 R)
• M73: 42,443,309 km (0.06 R)
• M74: 45,477,154 km (0.107 R)
• M75: 46,808,725 km (0.054 R)
• M76: 46,949,497 km (0.105 R)

Kuiper Belt

Range: 30.8 - 50.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 220 - 16,583 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit