🌌 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: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.45 AU - 0.63 AU

Year: 170 Days

Day: 18.3 Hours

Environment

Temp: 102 °C

Axial Tilt: 14.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.57 AU - 0.87 AU

Year: 261 Days

Day: 47.2 Hours

Environment

Temp: -14 °C

Axial Tilt: 17.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.65

Radius: 1.22

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.49 AU - 2.07 AU

Year: 1015 Days

Day: 42 Hours

Environment

Temp: -103 °C

Axial Tilt: 25.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.01 AU - 2.19 AU

Year: 1301 Days

Day: 35.8 Hours

Environment

Temp: -124 °C

Axial Tilt: 27.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.89

Radius: 0.95

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.97 AU - 3.17 AU

Year: 1761 Days

Day: 47 Hours

Environment

Temp: -141 °C

Axial Tilt: 34.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.7

Radius: 9.9

Gravity: 7.24 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 2.36 AU - 3.38 AU

Year: 2079 Days

Day: 7.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 77,394,481 km

• M1: 123,119 km (0.103 R)
• M2: 552,465 km (0.105 R)
• M3: 951,442 km (0.106 R)
• M4: 1,296,116 km (0.12 R)
• M5: 2,074,623 km (0.055 R)
• M6: 3,058,528 km (0.087 R)
• M7: 3,575,539 km (0.08 R)
• M8: 3,920,511 km (0.073 R)
• M9: 4,347,763 km (0.044 R)
• M10: 5,530,035 km (0.07 R)
• M11: 6,144,733 km (0.069 R)
• M12: 6,641,996 km (0.118 R)
• M13: 7,194,162 km (0.102 R)
• M14: 7,806,615 km (0.112 R)
• M15: 9,102,133 km (0.074 R)
• M16: 9,783,850 km (0.099 R)
• M17: 11,325,905 km (0.074 R)
• M18: 11,794,745 km (0.102 R)
• M19: 14,472,248 km (0.074 R)
• M20: 15,258,983 km (0.09 R)
• M21: 16,025,223 km (0.116 R)
• M22: 16,417,768 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.4

Radius: 12.4

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 5.05 AU - 6.07 AU

Year: 5605 Days

Day: 11.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 77,394,481 km

• M1: 159,621 km (0.04 R)
• M2: 575,353 km (0.064 R)
• M3: 1,569,880 km (0.075 R)
• M4: 2,819,621 km (0.12 R)
• M5: 4,720,860 km (0.098 R)
• M6: 5,227,698 km (0.07 R)
• M7: 5,799,012 km (0.084 R)
• M8: 6,780,823 km (0.066 R)
• M9: 8,010,068 km (0.09 R)
• M10: 12,164,850 km (0.096 R)
• M11: 14,127,574 km (0.062 R)
• M12: 15,238,488 km (0.108 R)
• M13: 16,406,847 km (0.118 R)
• M14: 20,801,434 km (0.086 R)
• M15: 24,255,500 km (0.048 R)
• M16: 25,385,113 km (0.117 R)
• M17: 26,079,546 km (0.03 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.1

Radius: 8.2

Gravity: 12.36 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 6.78 AU - 6.88 AU

Year: 7631 Days

Day: 13.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 77,394,481 km

• M1: 106,663 km (0.078 R)
• M2: 371,601 km (0.108 R)
• M3: 1,206,507 km (0.036 R)
• M4: 1,731,895 km (0.04 R)
• M5: 3,037,136 km (0.113 R)
• M6: 4,140,121 km (0.092 R)
• M7: 6,124,836 km (0.069 R)
• M8: 7,304,116 km (0.053 R)
• M9: 7,783,278 km (0.116 R)
• M10: 8,072,301 km (0.05 R)
• M11: 8,715,871 km (0.104 R)
• M12: 9,118,289 km (0.109 R)
• M13: 9,864,035 km (0.05 R)
• M14: 13,316,604 km (0.058 R)
• M15: 14,522,662 km (0.102 R)
• M16: 15,734,405 km (0.115 R)
• M17: 16,466,088 km (0.064 R)
• M18: 17,499,959 km (0.101 R)
• M19: 18,503,461 km (0.096 R)
• M20: 23,497,936 km (0.087 R)
• M21: 24,807,067 km (0.034 R)
• M22: 26,720,723 km (0.055 R)
• M23: 27,857,367 km (0.112 R)
• M24: 30,328,126 km (0.106 R)
• M25: 34,357,993 km (0.076 R)
• M26: 36,042,465 km (0.116 R)
• M27: 37,899,125 km (0.112 R)
• M28: 38,373,051 km (0.104 R)
• M29: 42,054,505 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 641.3

Radius: 4.9

Gravity: 26.71 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 12.57 AU - 14.43 AU

Year: 21205 Days

Day: 20.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 77,394,481 km

• M1: 62,831 km (0.059 R)
• M2: 661,223 km (0.114 R)
• M3: 1,064,538 km (0.099 R)
• M4: 1,722,470 km (0.045 R)
• M5: 1,927,569 km (0.087 R)
• M6: 2,298,571 km (0.102 R)
• M7: 2,865,398 km (0.112 R)
• M8: 3,020,680 km (0.093 R)
• M9: 3,491,614 km (0.068 R)
• M10: 6,382,743 km (0.105 R)
• M11: 7,786,420 km (0.097 R)
• M12: 11,444,237 km (0.104 R)
• M13: 11,903,054 km (0.081 R)
• M14: 12,305,921 km (0.041 R)
• M15: 13,352,956 km (0.075 R)
• M16: 17,356,495 km (0.092 R)
• M17: 18,491,643 km (0.097 R)
• M18: 23,215,944 km (0.1 R)
• M19: 25,245,389 km (0.107 R)
• M20: 28,685,691 km (0.106 R)
• M21: 33,874,643 km (0.114 R)
• M22: 42,079,188 km (0.059 R)
• M23: 51,691,001 km (0.032 R)
• M24: 54,395,132 km (0.103 R)
• M25: 66,155,619 km (0.11 R)
• M26: 66,994,863 km (0.117 R)
• M27: 74,191,718 km (0.078 R)
• M28: 75,097,533 km (0.088 R)
• M29: 77,162,731 km (0.093 R)
• M30: 77,394,458 km (0.105 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 301 - 16,737 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit