🌌 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: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.45 AU - 0.67 AU

Year: 154 Days

Day: 35.2 Hours

Environment

Temp: 224 °C

Axial Tilt: 42 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.06

Radius: 1.02

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.73 AU - 1.07 AU

Year: 313 Days

Day: 28.4 Hours

Environment

Temp: 152 °C

Axial Tilt: 13.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 84,080,319 km

• M1: 54,603 km (0.111 R)
• M2: 392,994 km (0.091 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.25

Radius: 1.09

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.06 AU - 1.24 AU

Year: 453 Days

Day: 23.2 Hours

Environment

Temp: 3 °C

Axial Tilt: 5.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 84,080,319 km

• M1: 343,327 km (0.059 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.33 AU - 2.11 AU

Year: 828 Days

Day: 33.7 Hours

Environment

Temp: -60 °C

Axial Tilt: 16.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,080,319 km

• M1: 23,337 km (0.1 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.14 AU - 2.9 AU

Year: 1468 Days

Day: 28.6 Hours

Environment

Temp: -93 °C

Axial Tilt: 27.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,080,319 km

• M1: 609,462 km (0.089 R)

Asteroid Belt

Center: 4.82 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.7

Radius: 11.7

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 5.62 AU - 8.62 AU

Year: 6974 Days

Day: 9.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 84,080,319 km

• M1: 153,936 km (0.047 R)
• M2: 801,396 km (0.102 R)
• M3: 1,736,981 km (0.086 R)
• M4: 2,240,378 km (0.104 R)
• M5: 3,000,784 km (0.114 R)
• M6: 3,385,849 km (0.086 R)
• M7: 4,000,696 km (0.086 R)
• M8: 5,003,151 km (0.109 R)
• M9: 6,649,925 km (0.101 R)
• M10: 7,500,538 km (0.064 R)
• M11: 7,932,277 km (0.082 R)
• M12: 8,760,003 km (0.1 R)
• M13: 10,882,048 km (0.071 R)
• M14: 11,903,802 km (0.065 R)
• M15: 12,656,429 km (0.115 R)
• M16: 14,798,521 km (0.095 R)
• M17: 18,626,880 km (0.115 R)
• M18: 19,567,701 km (0.12 R)
• M19: 20,768,672 km (0.073 R)
• M20: 22,258,069 km (0.086 R)
• M21: 22,661,534 km (0.04 R)
• M22: 23,985,625 km (0.087 R)
• M23: 24,752,763 km (0.103 R)
• M24: 26,787,743 km (0.12 R)
• M25: 28,740,893 km (0.113 R)
• M26: 31,795,232 km (0.071 R)
• M27: 36,604,654 km (0.096 R)
• M28: 38,079,390 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482

Radius: 14.1

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 8.28 AU - 9.82 AU

Year: 9994 Days

Day: 10 Hours

Environment

Temp: -161 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 84,080,319 km

• M1: 179,817 km (0.085 R)
• M2: 762,052 km (0.117 R)
• M3: 1,276,070 km (0.093 R)
• M4: 3,252,856 km (0.097 R)
• M5: 4,333,402 km (0.073 R)
• M6: 4,898,433 km (0.111 R)
• M7: 5,871,716 km (0.064 R)
• M8: 6,351,926 km (0.053 R)
• M9: 7,789,711 km (0.113 R)
• M10: 8,936,378 km (0.105 R)
• M11: 10,889,079 km (0.086 R)
• M12: 12,266,577 km (0.114 R)
• M13: 13,757,170 km (0.112 R)
• M14: 14,983,872 km (0.088 R)
• M15: 15,494,450 km (0.058 R)
• M16: 18,152,056 km (0.039 R)
• M17: 18,806,248 km (0.06 R)
• M18: 19,325,801 km (0.099 R)
• M19: 21,500,505 km (0.114 R)
• M20: 30,399,035 km (0.086 R)
• M21: 34,093,804 km (0.089 R)
• M22: 34,645,072 km (0.109 R)
• M23: 35,652,165 km (0.059 R)
• M24: 36,106,044 km (0.07 R)
• M25: 38,671,498 km (0.054 R)
• M26: 40,121,102 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704

Radius: 13.5

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 9.41 AU - 14.17 AU

Year: 14861 Days

Day: 5.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 84,080,319 km

• M1: 167,849 km (0.106 R)
• M2: 701,315 km (0.066 R)
• M3: 1,234,332 km (0.108 R)
• M4: 1,950,457 km (0.064 R)
• M5: 2,615,420 km (0.065 R)
• M6: 3,615,182 km (0.102 R)
• M7: 4,039,741 km (0.059 R)
• M8: 6,732,203 km (0.088 R)
• M9: 8,258,999 km (0.065 R)
• M10: 8,849,612 km (0.112 R)
• M11: 10,170,860 km (0.045 R)
• M12: 12,111,444 km (0.064 R)
• M13: 12,940,066 km (0.038 R)
• M14: 13,602,785 km (0.102 R)
• M15: 14,357,955 km (0.046 R)
• M16: 22,088,275 km (0.083 R)
• M17: 37,670,988 km (0.106 R)
• M18: 38,614,053 km (0.106 R)
• M19: 40,267,558 km (0.107 R)
• M20: 43,273,727 km (0.114 R)
• M21: 45,208,028 km (0.113 R)
• M22: 46,426,652 km (0.07 R)
• M23: 48,295,429 km (0.086 R)
• M24: 49,729,623 km (0.082 R)
• M25: 55,751,237 km (0.042 R)
• M26: 56,273,932 km (0.105 R)
• M27: 62,992,671 km (0.052 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 425

Radius: 5.2

Gravity: 15.72 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 18.6 AU - 18.64 AU

Year: 29495 Days

Day: 22.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 84,080,319 km

• M1: 64,626 km (0.115 R)
• M2: 305,180 km (0.117 R)
• M3: 1,457,831 km (0.107 R)
• M4: 3,697,760 km (0.109 R)
• M5: 4,424,656 km (0.029 R)
• M6: 5,812,775 km (0.093 R)
• M7: 6,069,485 km (0.059 R)
• M8: 6,838,119 km (0.054 R)
• M9: 21,172,736 km (0.034 R)
• M10: 21,985,801 km (0.088 R)
• M11: 23,890,930 km (0.104 R)
• M12: 28,390,833 km (0.091 R)
• M13: 37,091,296 km (0.109 R)
• M14: 44,548,900 km (0.036 R)
• M15: 53,317,130 km (0.084 R)
• M16: 54,629,702 km (0.084 R)
• M17: 55,389,210 km (0.1 R)
• M18: 56,735,441 km (0.102 R)
• M19: 66,128,692 km (0.044 R)
• M20: 69,624,195 km (0.113 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 157 - 14,371 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit