🌌 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: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.47

Radius: 0.74

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.45 AU - 0.71 AU

Year: 158 Days

Day: 27 Hours

Environment

Temp: 214 °C

Axial Tilt: 29.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 81,644,613 km

• M1: 165,455 km (0.085 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.94 AU - 1.28 AU

Year: 419 Days

Day: 38.5 Hours

Environment

Temp: 40 °C

Axial Tilt: 15.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.27 AU - 1.47 AU

Year: 574 Days

Day: 22.1 Hours

Environment

Temp: 7 °C

Axial Tilt: 4.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.86 AU - 2.18 AU

Year: 1028 Days

Day: 44.8 Hours

Environment

Temp: -66 °C

Axial Tilt: 46.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.89

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 3.46 AU - 5.08 AU

Year: 3160 Days

Day: 20.8 Hours

Environment

Temp: -123 °C

Axial Tilt: 35.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.03

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 4.37 AU - 5.17 AU

Year: 3731 Days

Day: 36.1 Hours

Environment

Temp: -125 °C

Axial Tilt: 36.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,644,613 km

• M1: 2,316,074 km (0.081 R)

Asteroid Belt

Center: 6.29 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 7.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.6

Radius: 9

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 6.62 AU - 9 AU

Year: 7817 Days

Day: 11.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 81,644,613 km

• M1: 114,143 km (0.037 R)
• M2: 1,176,587 km (0.064 R)
• M3: 1,668,764 km (0.083 R)
• M4: 2,179,342 km (0.094 R)
• M5: 2,828,896 km (0.086 R)
• M6: 3,147,539 km (0.079 R)
• M7: 3,905,103 km (0.05 R)
• M8: 4,430,790 km (0.118 R)
• M9: 7,642,806 km (0.053 R)
• M10: 8,711,533 km (0.073 R)
• M11: 9,046,632 km (0.111 R)
• M12: 10,057,914 km (0.034 R)
• M13: 17,364,423 km (0.04 R)
• M14: 18,782,611 km (0.097 R)
• M15: 21,542,692 km (0.113 R)
• M16: 22,467,655 km (0.105 R)
• M17: 23,338,614 km (0.076 R)
• M18: 23,823,012 km (0.109 R)
• M19: 25,316,597 km (0.112 R)
• M20: 25,656,783 km (0.105 R)
• M21: 29,228,881 km (0.045 R)
• M22: 29,886,363 km (0.077 R)
• M23: 31,426,025 km (0.116 R)
• M24: 32,816,088 km (0.076 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.7

Radius: 8.2

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 9.46 AU - 12.02 AU

Year: 12606 Days

Day: 13.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,644,613 km

• M1: 102,475 km (0.081 R)
• M2: 1,061,397 km (0.066 R)
• M3: 1,602,044 km (0.113 R)
• M4: 2,061,907 km (0.114 R)
• M5: 3,287,114 km (0.047 R)
• M6: 3,680,257 km (0.071 R)
• M7: 6,331,131 km (0.077 R)
• M8: 8,357,285 km (0.12 R)
• M9: 10,922,889 km (0.117 R)
• M10: 13,148,306 km (0.119 R)
• M11: 17,807,083 km (0.108 R)
• M12: 22,599,601 km (0.054 R)
• M13: 23,223,873 km (0.115 R)
• M14: 24,670,185 km (0.092 R)
• M15: 25,751,478 km (0.071 R)
• M16: 28,728,476 km (0.114 R)
• M17: 30,299,702 km (0.079 R)
• M18: 33,915,932 km (0.076 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 809.1

Radius: 6.3

Gravity: 20.39 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 13.78 AU - 15.88 AU

Year: 20454 Days

Day: 18.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 81,644,613 km

• M1: 79,287 km (0.097 R)
• M2: 297,401 km (0.081 R)
• M3: 900,280 km (0.033 R)
• M4: 1,545,346 km (0.099 R)
• M5: 1,811,929 km (0.047 R)
• M6: 2,109,180 km (0.058 R)
• M7: 2,904,293 km (0.064 R)
• M8: 3,456,908 km (0.106 R)
• M9: 5,377,295 km (0.114 R)
• M10: 5,699,978 km (0.049 R)
• M11: 6,208,162 km (0.067 R)
• M12: 6,700,189 km (0.118 R)
• M13: 8,279,345 km (0.081 R)
• M14: 10,213,047 km (0.087 R)
• M15: 10,898,205 km (0.095 R)
• M16: 11,813,893 km (0.06 R)
• M17: 18,592,323 km (0.029 R)
• M18: 23,104,494 km (0.115 R)
• M19: 25,387,507 km (0.028 R)
• M20: 26,525,647 km (0.118 R)
• M21: 26,757,225 km (0.041 R)
• M22: 28,055,585 km (0.096 R)
• M23: 28,416,864 km (0.067 R)
• M24: 30,269,783 km (0.116 R)
• M25: 33,130,992 km (0.109 R)
• M26: 33,805,528 km (0.108 R)
• M27: 34,489,191 km (0.087 R)
• M28: 36,452,364 km (0.092 R)
• M29: 37,315,992 km (0.088 R)
• M30: 42,628,212 km (0.055 R)
• M31: 45,381,262 km (0.095 R)
• M32: 48,423,036 km (0.093 R)
• M33: 51,778,217 km (0.115 R)
• M34: 52,686,276 km (0.114 R)
• M35: 58,358,877 km (0.107 R)
• M36: 67,610,010 km (0.107 R)
• M37: 68,476,630 km (0.115 R)

Kuiper Belt

Range: 30.6 - 56.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 503 - 14,435 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit