🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.46 AU - 0.62 AU

Year: 147 Days

Day: 35.6 Hours

Environment

Temp: 168 °C

Axial Tilt: 8.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.56 AU - 0.88 AU

Year: 227 Days

Day: 24.7 Hours

Environment

Temp: 184 °C

Axial Tilt: 20.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.68 AU - 0.8 AU

Year: 236 Days

Day: 18.7 Hours

Environment

Temp: 147 °C

Axial Tilt: 15.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.78 AU - 1 AU

Year: 311 Days

Day: 35.8 Hours

Environment

Temp: 115 °C

Axial Tilt: 29.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 71,694,352 km

• M1: 89,460 km (0.065 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.01 AU - 1.57 AU

Year: 543 Days

Day: 33.7 Hours

Environment

Temp: 1 °C

Axial Tilt: 112.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 71,694,352 km

• M1: 481,107 km (0.091 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.41 AU - 2.41 AU

Year: 1387 Days

Day: 21.2 Hours

Environment

Temp: -80 °C

Axial Tilt: 29.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 3.29 AU - 5.23 AU

Year: 3261 Days

Day: 23.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 27.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.3

Radius: 8.6

Gravity: 11.51 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 6.67 AU - 7.57 AU

Year: 7046 Days

Day: 9.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 71,694,352 km

• M1: 110,254 km (0.067 R)
• M2: 418,126 km (0.118 R)
• M3: 881,580 km (0.112 R)
• M4: 1,763,609 km (0.077 R)
• M5: 2,932,417 km (0.092 R)
• M6: 3,480,095 km (0.045 R)
• M7: 3,965,840 km (0.117 R)
• M8: 5,996,032 km (0.098 R)
• M9: 7,292,597 km (0.068 R)
• M10: 7,644,002 km (0.118 R)
• M11: 10,380,596 km (0.106 R)
• M12: 11,232,107 km (0.065 R)
• M13: 11,596,079 km (0.101 R)
• M14: 13,188,099 km (0.103 R)
• M15: 13,651,853 km (0.09 R)
• M16: 14,307,092 km (0.097 R)
• M17: 14,611,822 km (0.118 R)
• M18: 15,939,204 km (0.104 R)
• M19: 16,532,061 km (0.103 R)
• M20: 17,071,211 km (0.096 R)
• M21: 18,977,986 km (0.09 R)
• M22: 19,794,042 km (0.113 R)
• M23: 21,496,167 km (0.108 R)
• M24: 24,749,472 km (0.064 R)
• M25: 25,366,264 km (0.106 R)
• M26: 27,747,114 km (0.111 R)
• M27: 30,473,535 km (0.049 R)
• M28: 31,182,031 km (0.097 R)
• M29: 32,842,717 km (0.054 R)
• M30: 35,443,027 km (0.049 R)
• M31: 37,365,958 km (0.053 R)

Planet 9 - Gas Giant

Semi-Major Axis: 12.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.3

Radius: 10.2

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 10.37 AU - 13.81 AU

Year: 15590 Days

Day: 7.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,694,352 km

• M1: 127,009 km (0.095 R)
• M2: 544,835 km (0.04 R)
• M3: 4,007,428 km (0.105 R)
• M4: 4,808,076 km (0.091 R)
• M5: 8,780,049 km (0.089 R)
• M6: 10,528,698 km (0.117 R)
• M7: 12,396,876 km (0.101 R)
• M8: 14,872,871 km (0.064 R)
• M9: 24,329,551 km (0.071 R)

Planet 10 - Ice Giant

Semi-Major Axis: 12.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 933.8

Radius: 3.8

Gravity: 64.67 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 11.96 AU - 12.3 AU

Year: 15667 Days

Day: 22.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 71,694,352 km

• M1: 47,722 km (0.049 R)
• M2: 177,423 km (0.112 R)
• M3: 303,833 km (0.106 R)
• M4: 444,605 km (0.072 R)
• M5: 586,723 km (0.09 R)
• M6: 729,888 km (0.111 R)
• M7: 1,088,025 km (0.073 R)
• M8: 1,457,532 km (0.12 R)
• M9: 1,886,579 km (0.082 R)
• M10: 2,669,125 km (0.055 R)
• M11: 4,167,797 km (0.052 R)
• M12: 6,446,322 km (0.116 R)
• M13: 7,629,192 km (0.063 R)
• M14: 8,896,137 km (0.093 R)
• M15: 10,713,900 km (0.066 R)
• M16: 11,645,446 km (0.071 R)
• M17: 11,837,979 km (0.054 R)
• M18: 15,834,635 km (0.048 R)
• M19: 17,455,379 km (0.12 R)
• M20: 18,219,525 km (0.071 R)
• M21: 20,833,299 km (0.074 R)
• M22: 21,789,678 km (0.109 R)
• M23: 22,874,861 km (0.062 R)
• M24: 27,125,086 km (0.084 R)
• M25: 30,032,221 km (0.081 R)
• M26: 32,884,155 km (0.118 R)
• M27: 37,006,324 km (0.077 R)
• M28: 42,969,445 km (0.052 R)
• M29: 43,429,309 km (0.106 R)
• M30: 45,937,467 km (0.116 R)
• M31: 46,579,242 km (0.114 R)
• M32: 47,716,784 km (0.118 R)
• M33: 56,752,645 km (0.088 R)
• M34: 66,249,866 km (0.104 R)
• M35: 69,988,466 km (0.112 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 196 - 10,918 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit