🌌 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: 3.11

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.55 AU - 0.57 AU

Year: 153 Days

Day: 30.1 Hours

Environment

Temp: 232 °C

Axial Tilt: 25.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.39

Radius: 1.14

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.81 AU - 1.01 AU

Year: 317 Days

Day: 35.3 Hours

Environment

Temp: 114 °C

Axial Tilt: 22.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.21 AU - 1.29 AU

Year: 510 Days

Day: 39.8 Hours

Environment

Temp: 3 °C

Axial Tilt: 9.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 38,054,164 km

• M1: 43,084 km (0.076 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.37

Radius: 0.67

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.44 AU - 1.66 AU

Year: 705 Days

Day: 14.6 Hours

Environment

Temp: -50 °C

Axial Tilt: 43.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.56 AU - 1.72 AU

Year: 767 Days

Day: 35.6 Hours

Environment

Temp: -37 °C

Axial Tilt: 32.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.14

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.26 AU - 2.04 AU

Year: 774 Days

Day: 18 Hours

Environment

Temp: -56 °C

Axial Tilt: 27.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.83

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.84 AU - 2.74 AU

Year: 1266 Days

Day: 31.7 Hours

Environment

Temp: -83 °C

Axial Tilt: 43.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.66 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.9

Radius: 13.1

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 4.34 AU - 5.72 AU

Year: 4120 Days

Day: 6.3 Hours

Environment

Temp: -137 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 38,054,164 km

• M1: 162,912 km (0.053 R)
• M2: 1,116,299 km (0.102 R)
• M3: 1,695,542 km (0.096 R)
• M4: 2,177,098 km (0.086 R)
• M5: 2,735,696 km (0.088 R)
• M6: 4,049,166 km (0.113 R)
• M7: 5,346,927 km (0.117 R)
• M8: 6,167,920 km (0.104 R)
• M9: 8,337,837 km (0.093 R)
• M10: 8,781,395 km (0.12 R)
• M11: 9,994,783 km (0.088 R)
• M12: 10,789,746 km (0.102 R)
• M13: 13,863,384 km (0.104 R)
• M14: 14,442,178 km (0.077 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.1

Radius: 13.7

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 4.3 AU - 6.22 AU

Year: 4406 Days

Day: 7.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,054,164 km

• M1: 170,392 km (0.104 R)
• M2: 688,300 km (0.089 R)
• M3: 1,143,377 km (0.049 R)
• M4: 1,991,746 km (0.105 R)
• M5: 2,589,689 km (0.059 R)
• M6: 3,345,008 km (0.067 R)
• M7: 4,360,329 km (0.108 R)
• M8: 6,363,145 km (0.119 R)
• M9: 6,802,365 km (0.101 R)
• M10: 7,707,133 km (0.058 R)
• M11: 9,193,238 km (0.09 R)
• M12: 10,600,206 km (0.03 R)
• M13: 11,769,762 km (0.11 R)
• M14: 14,632,766 km (0.073 R)
• M15: 15,739,042 km (0.072 R)
• M16: 16,960,060 km (0.041 R)
• M17: 17,808,430 km (0.095 R)
• M18: 23,062,606 km (0.092 R)
• M19: 24,028,709 km (0.074 R)

Planet 10 - Gas Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.1

Radius: 11

Gravity: 7.09 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.28 AU - 8.1 AU

Year: 6320 Days

Day: 7.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 38,054,164 km

• M1: 136,882 km (0.089 R)
• M2: 551,717 km (0.111 R)
• M3: 942,766 km (0.114 R)
• M4: 1,390,961 km (0.059 R)
• M5: 1,905,877 km (0.074 R)
• M6: 2,438,296 km (0.106 R)
• M7: 3,047,608 km (0.037 R)
• M8: 3,827,462 km (0.049 R)
• M9: 4,252,020 km (0.109 R)
• M10: 5,166,512 km (0.099 R)
• M11: 6,041,360 km (0.095 R)
• M12: 6,653,964 km (0.032 R)
• M13: 7,345,255 km (0.113 R)
• M14: 7,963,843 km (0.034 R)
• M15: 9,527,888 km (0.072 R)
• M16: 10,030,088 km (0.111 R)
• M17: 11,490,014 km (0.111 R)
• M18: 12,592,999 km (0.036 R)
• M19: 17,112,351 km (0.063 R)
• M20: 19,260,726 km (0.04 R)
• M21: 20,213,066 km (0.075 R)
• M22: 20,738,753 km (0.066 R)
• M23: 21,895,892 km (0.074 R)
• M24: 24,677,515 km (0.111 R)
• M25: 28,335,033 km (0.089 R)
• M26: 35,715,145 km (0.112 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 332 - 15,446 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit