🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.65

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.89 AU - 0.95 AU

Year: 334 Days

Day: 29.5 Hours

Environment

Temp: 14 °C

Axial Tilt: 29.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1 AU - 1.1 AU

Year: 408 Days

Day: 18.3 Hours

Environment

Temp: -0 °C

Axial Tilt: 31.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 57,351,254 km

• M1: 60,886 km (0.081 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.72

Radius: 1.24

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.51 AU - 1.59 AU

Year: 731 Days

Day: 46.4 Hours

Environment

Temp: -51 °C

Axial Tilt: 0.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 57,351,254 km

• M1: 169,345 km (0.058 R)
• M2: 499,058 km (0.082 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.9

Radius: 0.96

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.78 AU - 2.56 AU

Year: 1211 Days

Day: 38.7 Hours

Environment

Temp: -94 °C

Axial Tilt: 48.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 3.06 AU - 4.74 AU

Year: 2917 Days

Day: 43.9 Hours

Environment

Temp: -133 °C

Axial Tilt: 46.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 57,351,254 km

• M1: 301,440 km (0.037 R)
• M2: 2,575,627 km (0.105 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.67

Radius: 1.23

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 3.83 AU - 4.53 AU

Year: 3237 Days

Day: 25 Hours

Environment

Temp: -144 °C

Axial Tilt: 6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,351,254 km

• M1: 2,019,272 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 760.2

Radius: 13.1

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 4.78 AU - 5.1 AU

Year: 4159 Days

Day: 10.7 Hours

Environment

Temp: -137 °C

Axial Tilt: 98.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,351,254 km

• M1: 162,912 km (0.081 R)
• M2: 597,494 km (0.063 R)
• M3: 1,341,295 km (0.075 R)
• M4: 2,243,220 km (0.083 R)
• M5: 3,221,590 km (0.036 R)
• M6: 3,681,753 km (0.089 R)
• M7: 4,395,485 km (0.066 R)
• M8: 6,219,382 km (0.08 R)
• M9: 6,681,789 km (0.086 R)
• M10: 7,167,384 km (0.096 R)
• M11: 8,729,185 km (0.11 R)
• M12: 10,000,318 km (0.072 R)
• M13: 10,680,540 km (0.054 R)
• M14: 13,560,598 km (0.027 R)
• M15: 15,992,760 km (0.073 R)
• M16: 19,085,846 km (0.079 R)
• M17: 20,066,610 km (0.085 R)
• M18: 23,579,916 km (0.103 R)
• M19: 26,913,106 km (0.088 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.9

Radius: 14.2

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 7.08 AU - 7.32 AU

Year: 7317 Days

Day: 12.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 57,351,254 km

• M1: 176,974 km (0.118 R)
• M2: 686,205 km (0.085 R)
• M3: 1,211,892 km (0.089 R)
• M4: 2,283,013 km (0.056 R)
• M5: 8,400,519 km (0.028 R)
• M6: 11,647,241 km (0.097 R)
• M7: 12,893,990 km (0.079 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576

Radius: 14.3

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 9.5 AU - 12.98 AU

Year: 14272 Days

Day: 11.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 57,351,254 km

• M1: 181,462 km (0.105 R)
• M2: 656,136 km (0.092 R)
• M3: 1,419,534 km (0.112 R)
• M4: 2,671,369 km (0.057 R)
• M5: 3,315,089 km (0.088 R)
• M6: 4,060,834 km (0.083 R)
• M7: 4,691,838 km (0.053 R)
• M8: 5,318,653 km (0.056 R)
• M9: 9,535,219 km (0.116 R)
• M10: 16,097,479 km (0.106 R)
• M11: 18,314,071 km (0.103 R)
• M12: 22,055,663 km (0.114 R)
• M13: 22,972,249 km (0.108 R)
• M14: 23,628,834 km (0.043 R)
• M15: 27,205,420 km (0.096 R)
• M16: 29,891,899 km (0.056 R)
• M17: 31,816,924 km (0.101 R)
• M18: 33,823,331 km (0.092 R)
• M19: 36,543,319 km (0.093 R)
• M20: 40,347,593 km (0.09 R)
• M21: 43,120,240 km (0.118 R)
• M22: 43,832,775 km (0.09 R)
• M23: 49,196,905 km (0.098 R)
• M24: 49,974,964 km (0.029 R)
• M25: 50,919,525 km (0.103 R)
• M26: 52,520,072 km (0.071 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 395 - 10,788 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit