🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.62

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.48 AU - 0.7 AU

Year: 141 Days

Day: 27.3 Hours

Environment

Temp: 266 °C

Axial Tilt: 32.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.64

Radius: 0.84

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.81 AU - 2.81 AU

Year: 1092 Days

Day: 14 Hours

Environment

Temp: 8 °C

Axial Tilt: 28.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.35 AU - 3.33 AU

Year: 1488 Days

Day: 25.3 Hours

Environment

Temp: -42 °C

Axial Tilt: 30 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,799,331 km

• M1: 42,336 km (0.047 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.62 AU - 4.16 AU

Year: 1941 Days

Day: 17.3 Hours

Environment

Temp: -59 °C

Axial Tilt: 14.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,799,331 km

• M1: 987,944 km (0.098 R)

Planet 5 - Terrestrial

Semi-Major Axis: 6.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.06

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 6.15 AU - 6.49 AU

Year: 4940 Days

Day: 15.6 Hours

Environment

Temp: -113 °C

Axial Tilt: 5.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 8.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.89

Radius: 0.95

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 6.28 AU - 10.02 AU

Year: 7234 Days

Day: 13.4 Hours

Environment

Temp: -143 °C

Axial Tilt: 28.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 9.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.3

Radius: 14

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 7.53 AU - 10.77 AU

Year: 8606 Days

Day: 7.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,799,331 km

• M1: 189,541 km (0.117 R)
• M2: 1,168,808 km (0.088 R)
• M3: 2,039,617 km (0.033 R)
• M4: 2,611,829 km (0.105 R)
• M5: 4,630,652 km (0.077 R)
• M6: 7,500,688 km (0.037 R)
• M7: 8,797,552 km (0.099 R)
• M8: 9,973,840 km (0.079 R)
• M9: 10,418,594 km (0.118 R)
• M10: 11,832,892 km (0.116 R)
• M11: 12,792,862 km (0.071 R)
• M12: 13,532,923 km (0.11 R)
• M13: 14,357,207 km (0.087 R)
• M14: 15,098,614 km (0.118 R)
• M15: 16,782,039 km (0.1 R)
• M16: 17,476,622 km (0.105 R)
• M17: 19,606,596 km (0.057 R)
• M18: 20,950,434 km (0.114 R)
• M19: 21,681,967 km (0.107 R)
• M20: 22,658,243 km (0.106 R)
• M21: 23,899,905 km (0.119 R)
• M22: 26,773,681 km (0.095 R)
• M23: 27,374,914 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 685

Radius: 6.5

Gravity: 16.21 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 15.23 AU - 19.71 AU

Year: 22703 Days

Day: 17.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 82,799,331 km

• M1: 80,783 km (0.065 R)
• M2: 604,525 km (0.106 R)
• M3: 880,234 km (0.086 R)
• M4: 1,127,220 km (0.103 R)
• M5: 1,585,588 km (0.075 R)
• M6: 1,820,008 km (0.103 R)
• M7: 2,204,474 km (0.098 R)
• M8: 2,690,966 km (0.118 R)
• M9: 2,999,737 km (0.083 R)
• M10: 4,103,170 km (0.082 R)
• M11: 4,408,200 km (0.107 R)
• M12: 6,475,643 km (0.113 R)
• M13: 7,568,455 km (0.101 R)
• M14: 8,237,756 km (0.092 R)
• M15: 11,248,264 km (0.054 R)
• M16: 13,397,686 km (0.071 R)
• M17: 13,693,591 km (0.065 R)
• M18: 14,529,843 km (0.118 R)
• M19: 16,556,445 km (0.115 R)
• M20: 17,069,416 km (0.091 R)
• M21: 17,505,045 km (0.11 R)
• M22: 19,321,911 km (0.081 R)
• M23: 20,764,334 km (0.051 R)
• M24: 21,968,896 km (0.097 R)
• M25: 23,007,704 km (0.106 R)
• M26: 26,435,889 km (0.059 R)
• M27: 29,065,669 km (0.107 R)
• M28: 41,174,869 km (0.087 R)
• M29: 44,859,913 km (0.099 R)
• M30: 45,522,482 km (0.07 R)
• M31: 46,528,528 km (0.116 R)
• M32: 54,176,420 km (0.058 R)
• M33: 56,451,205 km (0.107 R)
• M34: 58,788,822 km (0.069 R)
• M35: 69,224,919 km (0.034 R)
• M36: 70,109,491 km (0.078 R)
• M37: 72,127,267 km (0.077 R)
• M38: 77,221,972 km (0.081 R)
• M39: 80,342,584 km (0.113 R)
• M40: 82,551,396 km (0.097 R)

Kuiper Belt

Range: 35.3 - 57.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 397 - 14,482 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit