🌌 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: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.54 AU - 0.54 AU

Year: 171 Days

Day: 27.1 Hours

Environment

Temp: 29 °C

Axial Tilt: 34.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.71 AU - 2.31 AU

Year: 1227 Days

Day: 18 Hours

Environment

Temp: -112 °C

Axial Tilt: 28.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 80,823,606 km

• M1: 188,194 km (0.089 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.78

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.06 AU - 2.2 AU

Year: 1338 Days

Day: 41.5 Hours

Environment

Temp: -115 °C

Axial Tilt: 15.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 2.13 AU - 2.69 AU

Year: 1610 Days

Day: 16.8 Hours

Environment

Temp: -122 °C

Axial Tilt: 34.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.1

Radius: 10.9

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 4.59 AU - 4.77 AU

Year: 4358 Days

Day: 12.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 80,823,606 km

• M1: 135,685 km (0.115 R)
• M2: 612,005 km (0.096 R)
• M3: 1,532,929 km (0.088 R)
• M4: 1,988,455 km (0.097 R)
• M5: 2,388,480 km (0.115 R)
• M6: 3,273,949 km (0.045 R)
• M7: 3,858,279 km (0.114 R)
• M8: 5,626,974 km (0.058 R)
• M9: 6,219,083 km (0.108 R)
• M10: 6,593,975 km (0.116 R)
• M11: 7,218,546 km (0.074 R)
• M12: 8,210,530 km (0.063 R)
• M13: 8,894,641 km (0.099 R)
• M14: 9,290,925 km (0.058 R)
• M15: 10,950,564 km (0.111 R)
• M16: 11,360,014 km (0.108 R)
• M17: 12,404,356 km (0.1 R)
• M18: 12,899,675 km (0.069 R)
• M19: 15,069,742 km (0.079 R)
• M20: 18,798,020 km (0.059 R)
• M21: 19,784,618 km (0.118 R)
• M22: 23,323,654 km (0.074 R)
• M23: 24,385,500 km (0.094 R)
• M24: 25,321,085 km (0.074 R)
• M25: 26,933,301 km (0.092 R)
• M26: 28,527,416 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.5

Radius: 11.2

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 6.01 AU - 8.89 AU

Year: 8753 Days

Day: 5.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 80,823,606 km

• M1: 139,276 km (0.077 R)
• M2: 527,482 km (0.118 R)
• M3: 1,532,780 km (0.115 R)
• M4: 1,947,016 km (0.106 R)
• M5: 2,436,052 km (0.079 R)
• M6: 2,943,338 km (0.11 R)
• M7: 4,960,815 km (0.08 R)
• M8: 8,653,040 km (0.082 R)
• M9: 12,034,850 km (0.089 R)
• M10: 15,618,317 km (0.087 R)
• M11: 18,586,787 km (0.115 R)
• M12: 22,158,287 km (0.061 R)
• M13: 34,015,115 km (0.097 R)
• M14: 37,528,571 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 81.3

Radius: 7.5

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 12.63 AU - 15.97 AU

Year: 23277 Days

Day: 19.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 80,823,606 km

• M1: 93,499 km (0.036 R)
• M2: 346,319 km (0.099 R)
• M3: 582,534 km (0.116 R)
• M4: 1,009,187 km (0.069 R)
• M5: 1,253,032 km (0.04 R)
• M6: 1,523,505 km (0.112 R)
• M7: 4,949,745 km (0.079 R)
• M8: 5,191,645 km (0.036 R)
• M9: 10,026,947 km (0.114 R)
• M10: 17,369,210 km (0.093 R)
• M11: 25,533,813 km (0.104 R)
• M12: 27,652,867 km (0.083 R)
• M13: 40,268,605 km (0.071 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 364.6

Radius: 4.3

Gravity: 19.72 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 13.76 AU - 20.12 AU

Year: 30012 Days

Day: 22.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 80,823,606 km

• M1: 67,618 km (0.029 R)
• M2: 279,898 km (0.065 R)
• M3: 598,840 km (0.092 R)
• M4: 759,508 km (0.115 R)
• M5: 2,530,298 km (0.078 R)
• M6: 6,253,789 km (0.078 R)
• M7: 7,512,207 km (0.082 R)
• M8: 7,661,655 km (0.045 R)
• M9: 8,332,601 km (0.05 R)
• M10: 9,041,995 km (0.058 R)
• M11: 10,029,041 km (0.083 R)
• M12: 12,771,918 km (0.082 R)
• M13: 13,128,410 km (0.073 R)
• M14: 15,569,398 km (0.074 R)
• M15: 17,762,802 km (0.093 R)
• M16: 19,303,212 km (0.045 R)
• M17: 21,526,086 km (0.101 R)
• M18: 28,115,424 km (0.093 R)
• M19: 28,476,104 km (0.05 R)
• M20: 35,091,472 km (0.1 R)
• M21: 43,938,989 km (0.103 R)
• M22: 48,786,259 km (0.111 R)
• M23: 49,307,159 km (0.109 R)
• M24: 54,348,906 km (0.109 R)
• M25: 55,095,998 km (0.097 R)
• M26: 68,432,648 km (0.117 R)
• M27: 79,858,186 km (0.062 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 408 - 11,627 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit