🌌 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: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.51 AU - 0.57 AU

Year: 147 Days

Day: 45.5 Hours

Environment

Temp: 176 °C

Axial Tilt: 8.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 65,200,247 km

• M1: 96,790 km (0.087 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.45 AU - 0.73 AU

Year: 168 Days

Day: 34.5 Hours

Environment

Temp: 220 °C

Axial Tilt: 9.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.79

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.91 AU - 1.11 AU

Year: 376 Days

Day: 18.1 Hours

Environment

Temp: 25 °C

Axial Tilt: 33.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.37 AU - 2.39 AU

Year: 1362 Days

Day: 16.8 Hours

Environment

Temp: -79 °C

Axial Tilt: 1.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 3.75 AU - 4.43 AU

Year: 3068 Days

Day: 35.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 5.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.2

Radius: 9.5

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 4.52 AU - 5.49 AU

Year: 4146 Days

Day: 11.6 Hours

Environment

Temp: -133 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 65,200,247 km

• M1: 118,182 km (0.087 R)
• M2: 569,818 km (0.104 R)
• M3: 929,601 km (0.106 R)
• M4: 1,411,755 km (0.111 R)
• M5: 1,963,322 km (0.071 R)
• M6: 2,304,256 km (0.094 R)
• M7: 2,749,459 km (0.114 R)
• M8: 3,592,892 km (0.102 R)
• M9: 4,150,294 km (0.077 R)
• M10: 4,461,457 km (0.109 R)
• M11: 5,385,972 km (0.046 R)
• M12: 6,403,836 km (0.1 R)
• M13: 6,973,954 km (0.111 R)
• M14: 7,942,749 km (0.082 R)
• M15: 9,560,800 km (0.097 R)
• M16: 9,948,258 km (0.069 R)
• M17: 10,713,302 km (0.07 R)
• M18: 11,047,055 km (0.07 R)
• M19: 11,517,241 km (0.103 R)
• M20: 12,090,051 km (0.045 R)
• M21: 13,008,133 km (0.104 R)
• M22: 14,071,026 km (0.064 R)
• M23: 15,034,736 km (0.082 R)
• M24: 16,424,051 km (0.044 R)
• M25: 16,924,306 km (0.102 R)
• M26: 18,189,904 km (0.083 R)
• M27: 21,694,982 km (0.06 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 866.6

Radius: 8.2

Gravity: 12.89 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 8.24 AU - 11.72 AU

Year: 11692 Days

Day: 11.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,200,247 km

• M1: 141,071 km (0.083 R)
• M2: 483,650 km (0.077 R)
• M3: 936,333 km (0.104 R)
• M4: 1,488,349 km (0.079 R)
• M5: 2,319,814 km (0.086 R)
• M6: 2,940,945 km (0.113 R)
• M7: 4,326,819 km (0.116 R)
• M8: 4,895,142 km (0.102 R)
• M9: 6,103,144 km (0.045 R)
• M10: 6,654,263 km (0.117 R)
• M11: 7,367,845 km (0.103 R)
• M12: 8,604,271 km (0.041 R)
• M13: 8,896,885 km (0.103 R)
• M14: 10,794,534 km (0.09 R)
• M15: 12,569,961 km (0.082 R)
• M16: 15,158,004 km (0.105 R)
• M17: 15,874,877 km (0.09 R)
• M18: 16,689,288 km (0.091 R)
• M19: 20,571,652 km (0.116 R)
• M20: 23,659,950 km (0.12 R)
• M21: 25,314,353 km (0.078 R)
• M22: 29,618,882 km (0.102 R)
• M23: 30,738,174 km (0.11 R)
• M24: 39,375,506 km (0.096 R)
• M25: 50,916,383 km (0.118 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801

Radius: 10.8

Gravity: 6.87 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 9.26 AU - 13.96 AU

Year: 14671 Days

Day: 9.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 65,200,247 km

• M1: 134,339 km (0.046 R)
• M2: 639,381 km (0.119 R)
• M3: 1,238,820 km (0.11 R)
• M4: 1,640,490 km (0.105 R)
• M5: 2,017,028 km (0.098 R)
• M6: 3,789,912 km (0.1 R)
• M7: 4,298,545 km (0.029 R)
• M8: 5,601,692 km (0.106 R)
• M9: 7,151,676 km (0.078 R)
• M10: 9,073,560 km (0.071 R)
• M11: 10,494,141 km (0.069 R)
• M12: 14,118,449 km (0.059 R)
• M13: 16,172,577 km (0.09 R)
• M14: 21,882,877 km (0.108 R)
• M15: 22,547,690 km (0.094 R)
• M16: 23,225,817 km (0.106 R)
• M17: 27,038,618 km (0.103 R)
• M18: 28,696,761 km (0.101 R)
• M19: 29,150,043 km (0.108 R)
• M20: 29,954,879 km (0.062 R)
• M21: 30,421,475 km (0.091 R)
• M22: 31,249,649 km (0.092 R)
• M23: 38,014,614 km (0.1 R)
• M24: 41,375,629 km (0.04 R)
• M25: 48,202,678 km (0.066 R)
• M26: 51,631,012 km (0.101 R)
• M27: 63,267,782 km (0.094 R)
• M28: 64,422,528 km (0.105 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: 373 - 16,736 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit