🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.58 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.3

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.98 AU - 1.34 AU

Year: 441 Days

Day: 30.2 Hours

Environment

Temp: 24 °C

Axial Tilt: 19.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 80,624,016 km

• M1: 691,741 km (0.097 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.69 AU - 2.27 AU

Year: 984 Days

Day: 18.1 Hours

Environment

Temp: -61 °C

Axial Tilt: 38.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.61

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.98 AU - 2.22 AU

Year: 1075 Days

Day: 28.6 Hours

Environment

Temp: -67 °C

Axial Tilt: 32.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.83

Radius: 0.93

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2 AU - 2.36 AU

Year: 1137 Days

Day: 15.2 Hours

Environment

Temp: -57 °C

Axial Tilt: 11 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.25

Radius: 1.09

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 2.78 AU - 3.42 AU

Year: 1927 Days

Day: 26.7 Hours

Environment

Temp: -97 °C

Axial Tilt: 48.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.2 AU - 3.66 AU

Year: 2243 Days

Day: 37.8 Hours

Environment

Temp: -109 °C

Axial Tilt: 36.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 80,624,016 km

• M1: 503,846 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 720.6

Radius: 5.3

Gravity: 25.65 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 14.8 AU - 15.26 AU

Year: 20575 Days

Day: 18.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 80,624,016 km

• M1: 70,610 km (0.071 R)
• M2: 337,194 km (0.102 R)
• M3: 1,282,353 km (0.063 R)
• M4: 2,368,134 km (0.058 R)
• M5: 3,301,475 km (0.109 R)
• M6: 5,657,043 km (0.078 R)
• M7: 6,418,497 km (0.114 R)
• M8: 7,439,203 km (0.066 R)
• M9: 8,039,539 km (0.048 R)
• M10: 10,765,960 km (0.106 R)
• M11: 23,029,395 km (0.118 R)
• M12: 27,324,799 km (0.073 R)
• M13: 29,968,642 km (0.115 R)
• M14: 32,124,946 km (0.113 R)
• M15: 34,791,528 km (0.087 R)
• M16: 36,885,749 km (0.062 R)
• M17: 42,095,794 km (0.089 R)
• M18: 45,774,106 km (0.097 R)
• M19: 56,744,716 km (0.102 R)
• M20: 64,472,643 km (0.078 R)
• M21: 65,094,521 km (0.098 R)
• M22: 68,479,323 km (0.113 R)
• M23: 78,860,518 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 394.1

Radius: 4.2

Gravity: 22.34 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 17.66 AU - 19.92 AU

Year: 28760 Days

Day: 18.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 80,624,016 km

• M1: 65,673 km (0.096 R)
• M2: 233,373 km (0.058 R)
• M3: 499,058 km (0.058 R)
• M4: 640,578 km (0.067 R)
• M5: 1,435,990 km (0.081 R)
• M6: 1,859,053 km (0.059 R)
• M7: 2,429,320 km (0.114 R)
• M8: 2,643,245 km (0.114 R)
• M9: 3,566,264 km (0.113 R)
• M10: 4,369,455 km (0.079 R)
• M11: 4,543,587 km (0.118 R)
• M12: 5,131,805 km (0.1 R)
• M13: 5,564,742 km (0.111 R)
• M14: 5,769,391 km (0.111 R)
• M15: 6,064,398 km (0.104 R)
• M16: 7,742,288 km (0.119 R)
• M17: 10,184,324 km (0.048 R)
• M18: 11,251,106 km (0.086 R)
• M19: 13,975,732 km (0.107 R)
• M20: 14,739,130 km (0.11 R)
• M21: 15,131,226 km (0.055 R)
• M22: 15,530,054 km (0.08 R)
• M23: 16,432,279 km (0.114 R)
• M24: 17,542,894 km (0.099 R)
• M25: 19,347,792 km (0.104 R)
• M26: 21,074,750 km (0.095 R)
• M27: 22,384,180 km (0.096 R)
• M28: 22,901,788 km (0.082 R)
• M29: 27,925,883 km (0.041 R)
• M30: 28,646,795 km (0.054 R)
• M31: 29,627,110 km (0.094 R)
• M32: 37,557,144 km (0.103 R)
• M33: 39,777,326 km (0.088 R)
• M34: 45,955,867 km (0.098 R)
• M35: 47,297,611 km (0.108 R)
• M36: 55,900,835 km (0.087 R)
• M37: 58,985,094 km (0.06 R)
• M38: 65,279,724 km (0.112 R)
• M39: 68,047,434 km (0.092 R)
• M40: 71,336,941 km (0.087 R)

Kuiper Belt

Range: 31.1 - 51.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 548 - 20,442 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit