🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.06 AU - 1.12 AU

Year: 400 Days

Day: 36.3 Hours

Environment

Temp: 26 °C

Axial Tilt: 35.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 69,486,811 km

• M1: 597,793 km (0.11 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.95

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 2.13 AU - 3.17 AU

Year: 1516 Days

Day: 20 Hours

Environment

Temp: -85 °C

Axial Tilt: 163.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,486,811 km

• M1: 594,652 km (0.115 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.18

Radius: 1.07

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.22 AU - 3.12 AU

Year: 1533 Days

Day: 15.9 Hours

Environment

Temp: -81 °C

Axial Tilt: 50 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.71

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.42 AU - 3.08 AU

Year: 1603 Days

Day: 41.5 Hours

Environment

Temp: -93 °C

Axial Tilt: 26.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 4.02 AU - 4.76 AU

Year: 3233 Days

Day: 12.9 Hours

Environment

Temp: -131 °C

Axial Tilt: 123.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.55

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 4.16 AU - 5.04 AU

Year: 3467 Days

Day: 45 Hours

Environment

Temp: -116 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,486,811 km

• M1: 2,266,557 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356.6

Radius: 12

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 5.16 AU - 6.56 AU

Year: 4986 Days

Day: 11.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 69,486,811 km

• M1: 149,299 km (0.04 R)
• M2: 548,725 km (0.083 R)
• M3: 924,066 km (0.054 R)
• M4: 1,589,627 km (0.082 R)
• M5: 2,330,286 km (0.065 R)
• M6: 2,949,472 km (0.045 R)
• M7: 3,421,303 km (0.069 R)
• M8: 3,797,692 km (0.113 R)
• M9: 4,826,177 km (0.108 R)
• M10: 5,864,087 km (0.055 R)
• M11: 7,592,690 km (0.045 R)
• M12: 8,413,983 km (0.085 R)
• M13: 9,180,223 km (0.054 R)
• M14: 10,852,278 km (0.043 R)
• M15: 13,049,572 km (0.045 R)
• M16: 14,687,220 km (0.11 R)
• M17: 15,103,999 km (0.108 R)
• M18: 16,180,805 km (0.112 R)
• M19: 16,681,659 km (0.042 R)
• M20: 18,547,294 km (0.099 R)
• M21: 21,004,289 km (0.111 R)
• M22: 21,667,756 km (0.044 R)
• M23: 22,619,946 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 336.1

Radius: 5.1

Gravity: 12.92 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 15.9 AU - 18.36 AU

Year: 24918 Days

Day: 18.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 158.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 69,486,811 km

• M1: 63,429 km (0.049 R)
• M2: 226,790 km (0.104 R)
• M3: 488,886 km (0.086 R)
• M4: 670,348 km (0.117 R)
• M5: 1,429,856 km (0.064 R)
• M6: 1,809,685 km (0.07 R)
• M7: 2,720,437 km (0.12 R)
• M8: 3,065,560 km (0.102 R)
• M9: 3,275,595 km (0.08 R)
• M10: 3,963,745 km (0.119 R)
• M11: 6,689,418 km (0.069 R)
• M12: 7,179,501 km (0.037 R)
• M13: 8,032,658 km (0.109 R)
• M14: 8,637,631 km (0.081 R)
• M15: 9,057,553 km (0.099 R)
• M16: 15,589,893 km (0.115 R)
• M17: 17,755,322 km (0.094 R)
• M18: 22,869,625 km (0.051 R)
• M19: 25,439,417 km (0.067 R)
• M20: 29,117,730 km (0.091 R)
• M21: 33,390,095 km (0.119 R)
• M22: 33,646,057 km (0.076 R)
• M23: 36,413,917 km (0.063 R)
• M24: 38,341,186 km (0.087 R)
• M25: 38,762,903 km (0.092 R)
• M26: 40,625,845 km (0.06 R)
• M27: 42,698,075 km (0.114 R)
• M28: 43,913,258 km (0.118 R)
• M29: 45,464,438 km (0.083 R)
• M30: 49,169,978 km (0.069 R)
• M31: 52,034,627 km (0.077 R)
• M32: 66,611,593 km (0.051 R)

Kuiper Belt

Range: 31.2 - 60.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 442 - 15,667 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit