🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.43 AU - 0.71 AU

Year: 158 Days

Day: 20.6 Hours

Environment

Temp: 237 °C

Axial Tilt: 18.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 54,396,855 km

• M1: 100,979 km (0.109 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.81 AU - 0.95 AU

Year: 303 Days

Day: 41.7 Hours

Environment

Temp: 123 °C

Axial Tilt: 42.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.57

Radius: 0.8

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.11 AU - 1.39 AU

Year: 513 Days

Day: 46.8 Hours

Environment

Temp: -0 °C

Axial Tilt: 11.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 54,396,855 km

• M1: 18,999 km (0.098 R)
• M2: 549,473 km (0.05 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.37 AU - 1.57 AU

Year: 654 Days

Day: 18.4 Hours

Environment

Temp: -35 °C

Axial Tilt: 37.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,396,855 km

• M1: 30,368 km (0.115 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3 AU - 4.56 AU

Year: 2698 Days

Day: 42 Hours

Environment

Temp: -128 °C

Axial Tilt: 27.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.3

Radius: 12.2

Gravity: 6.52 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 4.59 AU - 6.13 AU

Year: 4555 Days

Day: 11.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 54,396,855 km

• M1: 153,787 km (0.112 R)
• M2: 690,095 km (0.071 R)
• M3: 1,240,615 km (0.056 R)
• M4: 1,668,914 km (0.116 R)
• M5: 2,780,576 km (0.081 R)
• M6: 3,659,463 km (0.103 R)
• M7: 4,164,356 km (0.094 R)
• M8: 4,585,923 km (0.105 R)
• M9: 5,146,316 km (0.113 R)
• M10: 5,721,969 km (0.089 R)
• M11: 6,119,002 km (0.077 R)
• M12: 7,140,905 km (0.081 R)
• M13: 12,643,563 km (0.039 R)
• M14: 13,640,334 km (0.105 R)
• M15: 14,075,364 km (0.05 R)
• M16: 16,149,240 km (0.098 R)
• M17: 18,222,517 km (0.106 R)
• M18: 18,617,754 km (0.117 R)
• M19: 19,357,216 km (0.049 R)
• M20: 20,467,532 km (0.08 R)
• M21: 21,840,840 km (0.117 R)
• M22: 23,896,614 km (0.029 R)
• M23: 25,255,412 km (0.09 R)
• M24: 26,834,417 km (0.074 R)
• M25: 28,301,972 km (0.09 R)
• M26: 29,550,367 km (0.109 R)
• M27: 30,279,955 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272

Radius: 10.6

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 8.94 AU - 9.28 AU

Year: 10094 Days

Day: 5.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,396,855 km

• M1: 134,040 km (0.048 R)
• M2: 567,126 km (0.069 R)
• M3: 2,443,532 km (0.12 R)
• M4: 4,734,773 km (0.052 R)
• M5: 5,390,011 km (0.082 R)
• M6: 7,953,072 km (0.103 R)
• M7: 10,285,901 km (0.104 R)
• M8: 12,194,470 km (0.106 R)
• M9: 19,748,415 km (0.117 R)
• M10: 21,290,619 km (0.119 R)
• M11: 30,990,844 km (0.058 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.7

Radius: 9.8

Gravity: 8.43 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 10.33 AU - 13.25 AU

Year: 14861 Days

Day: 5.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 88.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 54,396,855 km

• M1: 121,922 km (0.108 R)
• M2: 428,747 km (0.113 R)
• M3: 892,501 km (0.12 R)
• M4: 1,227,151 km (0.106 R)
• M5: 1,537,268 km (0.097 R)
• M6: 2,122,644 km (0.06 R)
• M7: 2,467,916 km (0.117 R)
• M8: 2,780,276 km (0.11 R)
• M9: 3,568,208 km (0.105 R)
• M10: 3,881,317 km (0.106 R)
• M11: 4,243,942 km (0.051 R)
• M12: 5,286,789 km (0.069 R)
• M13: 8,455,720 km (0.061 R)
• M14: 8,912,144 km (0.114 R)
• M15: 9,709,201 km (0.117 R)
• M16: 11,323,063 km (0.069 R)
• M17: 13,446,455 km (0.064 R)
• M18: 14,068,782 km (0.106 R)
• M19: 15,974,809 km (0.107 R)
• M20: 17,229,935 km (0.057 R)
• M21: 19,935,412 km (0.069 R)
• M22: 23,900,055 km (0.077 R)
• M23: 30,197,228 km (0.075 R)
• M24: 31,746,314 km (0.105 R)
• M25: 32,849,448 km (0.088 R)
• M26: 41,731,972 km (0.116 R)
• M27: 42,316,750 km (0.109 R)
• M28: 47,350,568 km (0.056 R)
• M29: 48,467,466 km (0.094 R)
• M30: 52,940,143 km (0.043 R)
• M31: 53,282,124 km (0.116 R)
• M32: 55,893,205 km (0.087 R)
• M33: 56,961,184 km (0.104 R)
• M34: 58,042,627 km (0.101 R)
• M35: 64,625,682 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 241.2

Radius: 4.3

Gravity: 13.04 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 11.17 AU - 17.93 AU

Year: 20374 Days

Day: 19.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 153.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 54,396,855 km

• M1: 54,753 km (0.108 R)
• M2: 391,946 km (0.093 R)
• M3: 892,501 km (0.098 R)
• M4: 1,076,207 km (0.114 R)
• M5: 1,351,617 km (0.106 R)
• M6: 1,641,238 km (0.046 R)
• M7: 2,006,407 km (0.112 R)
• M8: 2,343,750 km (0.115 R)
• M9: 2,505,316 km (0.082 R)
• M10: 3,717,208 km (0.104 R)
• M11: 6,486,115 km (0.118 R)
• M12: 7,827,559 km (0.111 R)
• M13: 9,343,733 km (0.108 R)
• M14: 10,547,248 km (0.119 R)
• M15: 11,558,380 km (0.07 R)
• M16: 14,567,990 km (0.072 R)
• M17: 20,848,408 km (0.081 R)
• M18: 27,565,502 km (0.057 R)
• M19: 29,797,951 km (0.054 R)
• M20: 30,790,533 km (0.102 R)
• M21: 36,086,148 km (0.12 R)
• M22: 36,584,309 km (0.106 R)
• M23: 40,601,460 km (0.119 R)
• M24: 45,623,760 km (0.112 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 425 - 16,329 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit