🌌 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: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.51 AU - 0.61 AU

Year: 160 Days

Day: 35.5 Hours

Environment

Temp: 207 °C

Axial Tilt: 16.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.73 AU - 1.13 AU

Year: 343 Days

Day: 43.6 Hours

Environment

Temp: 10 °C

Axial Tilt: 1.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 91,104,350 km

• M1: 599,289 km (0.119 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.94

Radius: 1.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.05 AU - 1.43 AU

Year: 529 Days

Day: 12.4 Hours

Environment

Temp: -37 °C

Axial Tilt: 8.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.07 AU - 1.49 AU

Year: 554 Days

Day: 27 Hours

Environment

Temp: -32 °C

Axial Tilt: 1.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.18 AU - 2.38 AU

Year: 1318 Days

Day: 13.6 Hours

Environment

Temp: -95 °C

Axial Tilt: 29.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 91,104,350 km

• M1: 167,101 km (0.031 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.88 AU - 3.96 AU

Year: 2422 Days

Day: 41.2 Hours

Environment

Temp: -121 °C

Axial Tilt: 49.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.4

Radius: 12.9

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 5.33 AU - 7.25 AU

Year: 6040 Days

Day: 14.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 91,104,350 km

• M1: 160,668 km (0.075 R)
• M2: 654,191 km (0.057 R)
• M3: 1,718,281 km (0.11 R)
• M4: 2,602,405 km (0.1 R)
• M5: 3,058,080 km (0.095 R)
• M6: 3,895,379 km (0.072 R)
• M7: 4,519,202 km (0.116 R)
• M8: 5,498,470 km (0.103 R)
• M9: 6,798,924 km (0.101 R)
• M10: 7,471,815 km (0.079 R)
• M11: 14,350,176 km (0.09 R)
• M12: 17,373,848 km (0.088 R)
• M13: 19,823,513 km (0.059 R)
• M14: 21,198,018 km (0.081 R)
• M15: 21,942,866 km (0.073 R)
• M16: 23,128,130 km (0.068 R)
• M17: 24,429,332 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.1

Radius: 13.9

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 7.07 AU - 9.27 AU

Year: 8941 Days

Day: 7.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 91,104,350 km

• M1: 172,935 km (0.083 R)
• M2: 645,216 km (0.092 R)
• M3: 1,306,438 km (0.093 R)
• M4: 2,078,363 km (0.111 R)
• M5: 2,586,996 km (0.052 R)
• M6: 3,139,311 km (0.112 R)
• M7: 3,929,188 km (0.074 R)
• M8: 5,287,686 km (0.036 R)
• M9: 6,703,630 km (0.105 R)
• M10: 7,645,199 km (0.085 R)
• M11: 8,359,379 km (0.084 R)
• M12: 10,052,528 km (0.098 R)
• M13: 11,191,417 km (0.116 R)
• M14: 12,313,550 km (0.09 R)
• M15: 14,108,276 km (0.1 R)
• M16: 15,891,333 km (0.084 R)
• M17: 20,676,969 km (0.091 R)
• M18: 23,435,554 km (0.101 R)
• M19: 24,620,818 km (0.07 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 926.3

Radius: 5.8

Gravity: 27.54 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 14.01 AU - 16.25 AU

Year: 22533 Days

Day: 24 Hours

Environment

Temp: -188 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 91,104,350 km

• M1: 72,106 km (0.097 R)
• M2: 496,067 km (0.12 R)
• M3: 833,709 km (0.078 R)
• M4: 1,122,882 km (0.114 R)
• M5: 1,394,551 km (0.116 R)
• M6: 1,690,606 km (0.102 R)
• M7: 2,338,514 km (0.112 R)
• M8: 2,890,380 km (0.055 R)
• M9: 3,403,352 km (0.11 R)
• M10: 3,842,870 km (0.047 R)
• M11: 5,106,823 km (0.088 R)
• M12: 5,307,583 km (0.071 R)
• M13: 7,513,703 km (0.087 R)
• M14: 8,760,601 km (0.101 R)
• M15: 10,014,231 km (0.093 R)
• M16: 11,046,456 km (0.055 R)
• M17: 11,451,119 km (0.095 R)
• M18: 12,147,646 km (0.116 R)
• M19: 12,724,795 km (0.111 R)
• M20: 13,020,251 km (0.079 R)
• M21: 14,168,863 km (0.104 R)
• M22: 16,578,286 km (0.054 R)
• M23: 16,842,027 km (0.093 R)
• M24: 17,559,349 km (0.089 R)
• M25: 21,558,400 km (0.093 R)
• M26: 27,206,766 km (0.037 R)
• M27: 28,695,564 km (0.098 R)
• M28: 41,631,292 km (0.043 R)
• M29: 42,282,342 km (0.114 R)
• M30: 45,639,767 km (0.107 R)
• M31: 49,170,576 km (0.09 R)
• M32: 50,264,436 km (0.117 R)
• M33: 50,448,292 km (0.079 R)
• M34: 50,817,349 km (0.116 R)
• M35: 54,027,271 km (0.086 R)
• M36: 65,553,637 km (0.115 R)
• M37: 83,669,790 km (0.081 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: 456 - 16,202 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit