🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.69

Radius: 1.49

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.4 AU - 0.64 AU

Year: 132 Days

Day: 23.8 Hours

Environment

Temp: 199 °C

Axial Tilt: 24.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 76,859,617 km

• M1: 51,910 km (0.082 R)
• M2: 77,940 km (0.078 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.7 AU - 0.8 AU

Year: 229 Days

Day: 21.6 Hours

Environment

Temp: 184 °C

Axial Tilt: 6.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 76,859,617 km

• M1: 331,808 km (0.04 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.93 AU - 0.97 AU

Year: 327 Days

Day: 42.2 Hours

Environment

Temp: 172 °C

Axial Tilt: 3.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 76,859,617 km

• M1: 42,785 km (0.061 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.93

Radius: 0.97

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.23 AU - 1.33 AU

Year: 511 Days

Day: 45.6 Hours

Environment

Temp: 14 °C

Axial Tilt: 31.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.13 AU - 1.45 AU

Year: 517 Days

Day: 43.9 Hours

Environment

Temp: 23 °C

Axial Tilt: 2.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.35 AU - 1.35 AU

Year: 554 Days

Day: 30.9 Hours

Environment

Temp: -8 °C

Axial Tilt: 33 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 7 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.44 AU - 1.5 AU

Year: 629 Days

Day: 35 Hours

Environment

Temp: -3 °C

Axial Tilt: 19.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 76,859,617 km

• M1: 45,777 km (0.109 R)

Planet 8 - Terrestrial

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.63

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 3.95 AU - 6.45 AU

Year: 4187 Days

Day: 33.4 Hours

Environment

Temp: -143 °C

Axial Tilt: 10.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,859,617 km

• M1: 97,538 km (0.08 R)

Planet 9 - Gas Giant

Semi-Major Axis: 7.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238

Radius: 14.5

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 5.68 AU - 9.24 AU

Year: 7195 Days

Day: 14.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 76,859,617 km

• M1: 180,415 km (0.081 R)
• M2: 658,231 km (0.094 R)
• M3: 1,163,871 km (0.051 R)
• M4: 1,655,001 km (0.083 R)
• M5: 2,454,153 km (0.116 R)
• M6: 3,519,739 km (0.088 R)
• M7: 4,249,926 km (0.079 R)
• M8: 4,750,032 km (0.12 R)
• M9: 5,397,042 km (0.097 R)
• M10: 6,431,811 km (0.095 R)
• M11: 7,126,992 km (0.115 R)
• M12: 7,732,714 km (0.074 R)
• M13: 8,445,847 km (0.105 R)
• M14: 10,464,521 km (0.061 R)
• M15: 11,518,587 km (0.097 R)
• M16: 12,885,313 km (0.042 R)
• M17: 15,216,796 km (0.094 R)
• M18: 16,166,743 km (0.032 R)
• M19: 17,454,332 km (0.117 R)
• M20: 19,255,041 km (0.03 R)
• M21: 21,382,472 km (0.025 R)
• M22: 24,709,230 km (0.059 R)

Planet 10 - Ice Giant

Semi-Major Axis: 20.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 267.2

Radius: 5.1

Gravity: 10.27 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 19.02 AU - 21.76 AU

Year: 32511 Days

Day: 18.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 174.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 76,859,617 km

• M1: 63,579 km (0.08 R)
• M2: 274,213 km (0.058 R)
• M3: 659,577 km (0.113 R)
• M4: 915,090 km (0.078 R)
• M5: 1,292,376 km (0.066 R)
• M6: 2,509,803 km (0.056 R)
• M7: 3,055,237 km (0.074 R)
• M8: 3,244,479 km (0.032 R)
• M9: 3,828,509 km (0.057 R)
• M10: 7,393,127 km (0.091 R)
• M11: 7,884,855 km (0.064 R)
• M12: 12,223,343 km (0.117 R)
• M13: 14,435,746 km (0.103 R)
• M14: 15,916,017 km (0.12 R)
• M15: 16,651,440 km (0.066 R)
• M16: 18,812,531 km (0.109 R)
• M17: 20,479,500 km (0.112 R)
• M18: 21,348,813 km (0.068 R)
• M19: 22,545,895 km (0.097 R)
• M20: 34,175,933 km (0.103 R)
• M21: 35,949,416 km (0.117 R)
• M22: 42,716,924 km (0.089 R)
• M23: 48,910,126 km (0.094 R)
• M24: 49,767,023 km (0.109 R)
• M25: 51,158,881 km (0.07 R)
• M26: 63,038,299 km (0.072 R)

Kuiper Belt

Range: 31.1 - 57.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 261 - 19,101 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit