🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.47

Radius: 1.44

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.56 AU - 0.58 AU

Year: 185 Days

Day: 21.5 Hours

Environment

Temp: 14 °C

Axial Tilt: 33.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.49 AU - 0.69 AU

Year: 195 Days

Day: 37.7 Hours

Environment

Temp: 22 °C

Axial Tilt: 28.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.56 AU - 0.68 AU

Year: 210 Days

Day: 28.9 Hours

Environment

Temp: 25 °C

Axial Tilt: 34.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 76,739,483 km

• M1: 35,455 km (0.1 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.82

Radius: 1.51

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.66 AU - 0.7 AU

Year: 241 Days

Day: 44.7 Hours

Environment

Temp: 3 °C

Axial Tilt: 47 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.65 AU - 1.07 AU

Year: 343 Days

Day: 16.2 Hours

Environment

Temp: -32 °C

Axial Tilt: 19.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.26

Radius: 1.1

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.44 AU - 1.46 AU

Year: 752 Days

Day: 36.9 Hours

Environment

Temp: -87 °C

Axial Tilt: 7.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 76,739,483 km

• M1: 547,977 km (0.063 R)
• M2: 864,975 km (0.119 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.35

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.98 AU - 2.68 AU

Year: 1531 Days

Day: 18.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 31.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,739,483 km

• M1: 250,726 km (0.098 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.9

Radius: 12.8

Gravity: 6.02 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 5.56 AU - 6.16 AU

Year: 6106 Days

Day: 14 Hours

Environment

Temp: -171 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 76,739,483 km

• M1: 159,172 km (0.104 R)
• M2: 833,111 km (0.106 R)
• M3: 1,478,625 km (0.105 R)
• M4: 2,911,773 km (0.091 R)
• M5: 4,395,933 km (0.097 R)
• M6: 5,427,112 km (0.12 R)
• M7: 7,534,048 km (0.081 R)
• M8: 8,371,946 km (0.087 R)
• M9: 9,271,029 km (0.064 R)
• M10: 10,617,110 km (0.1 R)
• M11: 11,160,450 km (0.067 R)
• M12: 15,003,470 km (0.075 R)
• M13: 16,135,178 km (0.115 R)
• M14: 17,188,197 km (0.112 R)
• M15: 20,775,255 km (0.072 R)
• M16: 21,862,682 km (0.114 R)
• M17: 22,340,348 km (0.073 R)
• M18: 26,957,387 km (0.1 R)
• M19: 29,876,640 km (0.092 R)
• M20: 31,868,236 km (0.078 R)
• M21: 32,792,751 km (0.117 R)
• M22: 33,629,601 km (0.103 R)
• M23: 36,894,575 km (0.1 R)
• M24: 37,571,954 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 502.8

Radius: 6.6

Gravity: 11.54 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 10.88 AU - 18.02 AU

Year: 23644 Days

Day: 21.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 76,739,483 km

• M1: 82,129 km (0.06 R)
• M2: 330,611 km (0.089 R)
• M3: 668,104 km (0.092 R)
• M4: 1,115,551 km (0.032 R)
• M5: 1,338,303 km (0.055 R)
• M6: 1,764,806 km (0.071 R)
• M7: 2,500,977 km (0.066 R)
• M8: 3,202,591 km (0.077 R)
• M9: 3,718,554 km (0.118 R)
• M10: 4,388,902 km (0.112 R)
• M11: 4,878,536 km (0.12 R)
• M12: 5,404,073 km (0.079 R)
• M13: 6,262,316 km (0.093 R)
• M14: 7,990,172 km (0.07 R)
• M15: 12,019,291 km (0.074 R)
• M16: 12,975,521 km (0.115 R)
• M17: 15,272,147 km (0.086 R)
• M18: 17,141,822 km (0.055 R)
• M19: 17,481,858 km (0.077 R)
• M20: 19,896,068 km (0.089 R)
• M21: 20,177,312 km (0.084 R)
• M22: 21,329,066 km (0.11 R)
• M23: 21,821,542 km (0.115 R)
• M24: 22,321,797 km (0.076 R)
• M25: 23,762,724 km (0.063 R)
• M26: 29,536,903 km (0.09 R)
• M27: 29,780,747 km (0.087 R)
• M28: 32,421,898 km (0.065 R)
• M29: 34,401,377 km (0.103 R)
• M30: 37,448,237 km (0.076 R)
• M31: 39,773,885 km (0.118 R)
• M32: 40,370,033 km (0.116 R)
• M33: 42,039,994 km (0.112 R)
• M34: 74,462,639 km (0.109 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 318 - 15,068 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit