🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.7

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.55 AU - 0.67 AU

Year: 171 Days

Day: 25.6 Hours

Environment

Temp: 223 °C

Axial Tilt: 42.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.54

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.88 AU - 0.88 AU

Year: 297 Days

Day: 34.4 Hours

Environment

Temp: 119 °C

Axial Tilt: 36.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 93,668,373 km

• M1: 151,543 km (0.077 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.53

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.96 AU - 1 AU

Year: 349 Days

Day: 48 Hours

Environment

Temp: 108 °C

Axial Tilt: 130.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.18 AU - 2.74 AU

Year: 1389 Days

Day: 37.8 Hours

Environment

Temp: -90 °C

Axial Tilt: 25.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 93,668,373 km

• M1: 46,076 km (0.103 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 2.53 AU - 3.29 AU

Year: 1787 Days

Day: 44.6 Hours

Environment

Temp: -103 °C

Axial Tilt: 36.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.91

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.81 AU - 3.39 AU

Year: 1964 Days

Day: 29.5 Hours

Environment

Temp: -103 °C

Axial Tilt: 45 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 93,668,373 km

• M1: 118,033 km (0.096 R)
• M2: 1,585,887 km (0.101 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.49 AU - 4.03 AU

Year: 2118 Days

Day: 47.6 Hours

Environment

Temp: -112 °C

Axial Tilt: 13.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 93,668,373 km

• M1: 2,079,859 km (0.065 R)
• M2: 2,460,885 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 560.5

Radius: 5.1

Gravity: 21.55 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 12.88 AU - 17.64 AU

Year: 21454 Days

Day: 15.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 93,668,373 km

• M1: 64,477 km (0.119 R)
• M2: 227,090 km (0.118 R)
• M3: 590,762 km (0.084 R)
• M4: 763,398 km (0.114 R)
• M5: 1,186,311 km (0.08 R)
• M6: 1,579,454 km (0.086 R)
• M7: 1,806,544 km (0.035 R)
• M8: 2,621,254 km (0.058 R)
• M9: 5,274,372 km (0.089 R)
• M10: 8,829,715 km (0.061 R)
• M11: 10,722,876 km (0.082 R)
• M12: 15,134,368 km (0.071 R)
• M13: 16,400,714 km (0.092 R)
• M14: 17,736,024 km (0.099 R)
• M15: 18,606,385 km (0.082 R)
• M16: 19,872,282 km (0.088 R)
• M17: 20,432,077 km (0.078 R)
• M18: 21,002,195 km (0.116 R)
• M19: 22,174,294 km (0.101 R)
• M20: 23,595,923 km (0.119 R)
• M21: 27,875,020 km (0.058 R)
• M22: 33,553,306 km (0.08 R)
• M23: 36,245,619 km (0.116 R)
• M24: 45,501,090 km (0.08 R)
• M25: 52,592,328 km (0.077 R)
• M26: 59,036,406 km (0.034 R)

Planet 9 - Ice Giant

Semi-Major Axis: 20.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 477.4

Radius: 3.1

Gravity: 49.68 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 19.19 AU - 21.25 AU

Year: 32722 Days

Day: 18.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 93,668,373 km

• M1: 38,596 km (0.069 R)
• M2: 754,422 km (0.113 R)
• M3: 869,014 km (0.109 R)
• M4: 969,095 km (0.119 R)
• M5: 1,222,963 km (0.047 R)
• M6: 1,332,917 km (0.062 R)
• M7: 1,466,658 km (0.116 R)
• M8: 2,116,062 km (0.11 R)
• M9: 2,251,897 km (0.095 R)
• M10: 3,622,064 km (0.098 R)
• M11: 5,592,567 km (0.088 R)
• M12: 5,765,203 km (0.077 R)
• M13: 6,166,723 km (0.114 R)
• M14: 6,397,703 km (0.099 R)
• M15: 6,779,028 km (0.098 R)
• M16: 7,639,664 km (0.097 R)
• M17: 13,977,827 km (0.091 R)
• M18: 18,118,546 km (0.094 R)
• M19: 18,591,724 km (0.074 R)
• M20: 19,268,206 km (0.104 R)
• M21: 19,960,694 km (0.113 R)
• M22: 20,669,788 km (0.068 R)
• M23: 20,772,412 km (0.114 R)
• M24: 21,395,487 km (0.081 R)
• M25: 21,605,822 km (0.065 R)
• M26: 27,697,597 km (0.089 R)
• M27: 29,478,709 km (0.109 R)
• M28: 36,912,975 km (0.098 R)
• M29: 37,064,219 km (0.082 R)
• M30: 37,825,971 km (0.106 R)
• M31: 41,465,089 km (0.095 R)
• M32: 47,083,835 km (0.113 R)
• M33: 55,731,789 km (0.095 R)
• M34: 62,120,217 km (0.076 R)
• M35: 64,280,709 km (0.103 R)
• M36: 65,158,699 km (0.105 R)
• M37: 70,131,033 km (0.074 R)
• M38: 73,184,924 km (0.084 R)
• M39: 74,142,201 km (0.057 R)
• M40: 76,081,587 km (0.089 R)
• M41: 88,702,861 km (0.118 R)

Kuiper Belt

Range: 30.5 - 48.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 189 - 18,490 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit