🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.97

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.52 AU - 0.56 AU

Year: 151 Days

Day: 39.5 Hours

Environment

Temp: 172 °C

Axial Tilt: 8.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.27 AU - 1.69 AU

Year: 686 Days

Day: 43.5 Hours

Environment

Temp: -53 °C

Axial Tilt: 34.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,104,300 km

• M1: 331,359 km (0.104 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.91

Radius: 0.96

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.82 AU - 2.59 AU

Year: 1243 Days

Day: 30.4 Hours

Environment

Temp: -82 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.93

Radius: 0.97

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 3.1 AU - 3.3 AU

Year: 2180 Days

Day: 40.9 Hours

Environment

Temp: -115 °C

Axial Tilt: 42.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,104,300 km

• M1: 35,305 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.6

Radius: 13.5

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 5.71 AU - 6.51 AU

Year: 5751 Days

Day: 10.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,104,300 km

• M1: 168,896 km (0.064 R)
• M2: 629,209 km (0.052 R)
• M3: 1,172,698 km (0.118 R)
• M4: 1,870,422 km (0.044 R)
• M5: 3,065,410 km (0.059 R)
• M6: 4,914,440 km (0.117 R)
• M7: 6,821,962 km (0.073 R)
• M8: 8,881,626 km (0.06 R)
• M9: 9,946,762 km (0.078 R)
• M10: 11,801,926 km (0.065 R)
• M11: 16,038,986 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.8

Radius: 9.1

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 5.15 AU - 7.79 AU

Year: 6267 Days

Day: 8.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,104,300 km

• M1: 118,033 km (0.038 R)
• M2: 528,080 km (0.119 R)
• M3: 1,013,825 km (0.099 R)
• M4: 1,389,016 km (0.117 R)
• M5: 1,730,249 km (0.074 R)
• M6: 2,057,120 km (0.112 R)
• M7: 2,568,446 km (0.116 R)
• M8: 3,014,846 km (0.112 R)
• M9: 3,393,029 km (0.053 R)
• M10: 4,896,039 km (0.077 R)
• M11: 5,366,076 km (0.082 R)
• M12: 6,549,844 km (0.119 R)
• M13: 7,419,157 km (0.105 R)
• M14: 7,899,216 km (0.042 R)
• M15: 8,583,627 km (0.047 R)
• M16: 9,268,037 km (0.102 R)
• M17: 9,988,351 km (0.119 R)
• M18: 11,768,116 km (0.109 R)
• M19: 16,340,725 km (0.057 R)
• M20: 18,986,962 km (0.044 R)
• M21: 26,351,515 km (0.037 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 896.7

Radius: 7.5

Gravity: 15.94 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 12.22 AU - 19.9 AU

Year: 24508 Days

Day: 18.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 74,104,300 km

• M1: 93,199 km (0.075 R)
• M2: 389,553 km (0.113 R)
• M3: 667,356 km (0.064 R)
• M4: 1,563,298 km (0.079 R)
• M5: 2,985,226 km (0.091 R)
• M6: 3,331,993 km (0.098 R)
• M7: 3,869,050 km (0.083 R)
• M8: 4,317,544 km (0.109 R)
• M9: 4,877,489 km (0.05 R)
• M10: 8,371,646 km (0.103 R)
• M11: 10,233,990 km (0.079 R)
• M12: 11,159,403 km (0.072 R)
• M13: 12,576,543 km (0.107 R)
• M14: 14,350,026 km (0.039 R)
• M15: 14,838,762 km (0.071 R)
• M16: 16,196,513 km (0.115 R)
• M17: 18,768,399 km (0.062 R)
• M18: 22,134,800 km (0.036 R)
• M19: 26,243,655 km (0.03 R)
• M20: 29,118,926 km (0.081 R)
• M21: 30,968,255 km (0.098 R)
• M22: 31,647,280 km (0.081 R)
• M23: 42,390,352 km (0.082 R)
• M24: 46,685,755 km (0.088 R)
• M25: 47,398,889 km (0.036 R)
• M26: 47,758,073 km (0.111 R)
• M27: 55,132,500 km (0.104 R)
• M28: 57,545,514 km (0.103 R)
• M29: 71,142,464 km (0.087 R)
• M30: 83,552,206 km (0.117 R)
• M31: 87,808,565 km (0.108 R)
• M32: 90,817,277 km (0.108 R)
• M33: 91,094,183 km (0.068 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 290.5

Radius: 6.6

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 14.96 AU - 21.4 AU

Year: 29518 Days

Day: 15.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 74,104,300 km

• M1: 83,027 km (0.097 R)
• M2: 303,085 km (0.071 R)
• M3: 757,863 km (0.12 R)
• M4: 1,211,144 km (0.061 R)
• M5: 1,444,068 km (0.113 R)
• M6: 1,707,061 km (0.088 R)
• M7: 2,223,922 km (0.106 R)
• M8: 2,553,336 km (0.113 R)
• M9: 3,095,330 km (0.091 R)
• M10: 3,478,450 km (0.105 R)
• M11: 3,831,501 km (0.06 R)
• M12: 4,819,445 km (0.116 R)
• M13: 5,411,105 km (0.04 R)
• M14: 5,724,363 km (0.119 R)
• M15: 6,049,887 km (0.059 R)
• M16: 6,387,530 km (0.041 R)
• M17: 8,268,274 km (0.096 R)
• M18: 11,480,739 km (0.074 R)
• M19: 12,330,455 km (0.087 R)
• M20: 14,450,107 km (0.1 R)
• M21: 15,596,027 km (0.053 R)
• M22: 16,392,785 km (0.112 R)
• M23: 23,357,015 km (0.11 R)
• M24: 29,353,945 km (0.089 R)
• M25: 29,593,900 km (0.097 R)
• M26: 30,199,472 km (0.087 R)
• M27: 33,091,797 km (0.094 R)
• M28: 36,577,876 km (0.051 R)
• M29: 46,023,935 km (0.088 R)
• M30: 49,331,992 km (0.059 R)
• M31: 53,685,290 km (0.037 R)
• M32: 59,239,111 km (0.11 R)
• M33: 60,200,427 km (0.1 R)
• M34: 62,947,493 km (0.083 R)
• M35: 64,757,029 km (0.103 R)
• M36: 72,999,572 km (0.064 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 232 - 13,980 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit