🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.6 AU - 0.84 AU

Year: 224 Days

Day: 35.2 Hours

Environment

Temp: 162 °C

Axial Tilt: 31.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.21 AU - 1.87 AU

Year: 702 Days

Day: 46.4 Hours

Environment

Temp: -32 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.32 AU - 1.84 AU

Year: 729 Days

Day: 25.9 Hours

Environment

Temp: -45 °C

Axial Tilt: 14.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.35

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.78 AU - 2.18 AU

Year: 1023 Days

Day: 18.9 Hours

Environment

Temp: -57 °C

Axial Tilt: 10.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 2.66 AU - 4.14 AU

Year: 2301 Days

Day: 28.8 Hours

Environment

Temp: -124 °C

Axial Tilt: 2.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 50,528,130 km

• M1: 46,824 km (0.105 R)
• M2: 104,270 km (0.066 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 3.76 AU - 4.52 AU

Year: 3092 Days

Day: 30 Hours

Environment

Temp: -133 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.53 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.1

Radius: 9.9

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 4.36 AU - 5.46 AU

Year: 3994 Days

Day: 6 Hours

Environment

Temp: -149 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 50,528,130 km

• M1: 123,119 km (0.095 R)
• M2: 604,525 km (0.049 R)
• M3: 992,283 km (0.096 R)
• M4: 1,953,599 km (0.107 R)
• M5: 2,715,052 km (0.096 R)
• M6: 3,293,696 km (0.068 R)
• M7: 3,622,812 km (0.093 R)
• M8: 4,347,763 km (0.107 R)
• M9: 4,965,004 km (0.098 R)
• M10: 5,639,690 km (0.106 R)
• M11: 6,084,594 km (0.096 R)
• M12: 6,612,824 km (0.115 R)
• M13: 11,121,555 km (0.103 R)
• M14: 11,822,421 km (0.086 R)
• M15: 13,752,981 km (0.074 R)
• M16: 14,203,271 km (0.095 R)
• M17: 15,452,712 km (0.072 R)
• M18: 16,604,616 km (0.075 R)
• M19: 17,520,155 km (0.099 R)
• M20: 19,765,469 km (0.106 R)
• M21: 22,470,498 km (0.12 R)
• M22: 23,732,505 km (0.113 R)
• M23: 24,235,902 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.3

Radius: 13.2

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 5.26 AU - 5.58 AU

Year: 4632 Days

Day: 5.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 50,528,130 km

• M1: 164,408 km (0.079 R)
• M2: 742,604 km (0.068 R)
• M3: 1,199,775 km (0.086 R)
• M4: 2,294,083 km (0.1 R)
• M5: 3,533,651 km (0.082 R)
• M6: 4,034,355 km (0.066 R)
• M7: 5,007,190 km (0.069 R)
• M8: 5,747,849 km (0.117 R)
• M9: 6,414,906 km (0.091 R)
• M10: 8,241,945 km (0.061 R)
• M11: 10,718,239 km (0.088 R)
• M12: 11,471,763 km (0.05 R)
• M13: 12,485,887 km (0.098 R)
• M14: 18,178,684 km (0.109 R)
• M15: 19,802,569 km (0.084 R)
• M16: 20,809,513 km (0.12 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.5

Radius: 10.1

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 7.33 AU - 12.21 AU

Year: 11210 Days

Day: 13.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 50,528,130 km

• M1: 126,410 km (0.039 R)
• M2: 592,408 km (0.062 R)
• M3: 1,128,716 km (0.064 R)
• M4: 1,936,993 km (0.088 R)
• M5: 3,047,009 km (0.111 R)
• M6: 3,473,812 km (0.108 R)
• M7: 4,507,533 km (0.087 R)
• M8: 6,811,490 km (0.032 R)
• M9: 7,502,632 km (0.099 R)
• M10: 7,930,632 km (0.092 R)
• M11: 9,168,106 km (0.068 R)
• M12: 9,558,406 km (0.109 R)
• M13: 11,398,011 km (0.079 R)
• M14: 12,022,134 km (0.096 R)
• M15: 12,490,076 km (0.116 R)
• M16: 13,462,612 km (0.096 R)
• M17: 17,636,841 km (0.109 R)
• M18: 22,779,268 km (0.093 R)
• M19: 23,136,059 km (0.043 R)
• M20: 26,812,426 km (0.042 R)
• M21: 29,363,818 km (0.093 R)
• M22: 29,786,582 km (0.119 R)
• M23: 30,536,067 km (0.106 R)
• M24: 31,518,177 km (0.08 R)
• M25: 35,418,792 km (0.081 R)
• M26: 36,139,106 km (0.095 R)
• M27: 40,929,379 km (0.113 R)
• M28: 42,256,911 km (0.112 R)
• M29: 43,476,133 km (0.066 R)
• M30: 44,025,457 km (0.085 R)
• M31: 45,701,102 km (0.055 R)
• M32: 48,440,688 km (0.096 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 301 - 17,468 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit