🌌 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: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.54 AU - 0.6 AU

Year: 156 Days

Day: 16.4 Hours

Environment

Temp: 187 °C

Axial Tilt: 38.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.89 AU - 1.27 AU

Year: 406 Days

Day: 29.7 Hours

Environment

Temp: 26 °C

Axial Tilt: 9.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.3

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.11 AU - 1.23 AU

Year: 458 Days

Day: 30.5 Hours

Environment

Temp: 3 °C

Axial Tilt: 20.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.46 AU - 1.58 AU

Year: 678 Days

Day: 43.2 Hours

Environment

Temp: -41 °C

Axial Tilt: 13.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.74 AU - 2.44 AU

Year: 1093 Days

Day: 14.7 Hours

Environment

Temp: -69 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 66,287,908 km

• M1: 169,644 km (0.103 R)
• M2: 362,775 km (0.027 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910

Radius: 15

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 10.68 AU - 11.18 AU

Year: 13068 Days

Day: 7.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 66,287,908 km

• M1: 187,895 km (0.097 R)
• M2: 819,348 km (0.064 R)
• M3: 1,342,042 km (0.119 R)
• M4: 2,422,887 km (0.072 R)
• M5: 4,973,232 km (0.073 R)
• M6: 9,016,413 km (0.11 R)
• M7: 15,225,473 km (0.107 R)
• M8: 16,189,930 km (0.115 R)
• M9: 17,591,962 km (0.102 R)
• M10: 20,282,629 km (0.107 R)
• M11: 22,852,870 km (0.062 R)
• M12: 24,018,387 km (0.064 R)
• M13: 30,332,464 km (0.088 R)
• M14: 31,858,961 km (0.075 R)
• M15: 32,945,490 km (0.115 R)
• M16: 35,963,777 km (0.052 R)
• M17: 38,075,500 km (0.095 R)
• M18: 39,299,061 km (0.097 R)
• M19: 40,129,330 km (0.11 R)
• M20: 40,689,274 km (0.07 R)
• M21: 43,714,891 km (0.11 R)
• M22: 46,579,092 km (0.074 R)
• M23: 47,821,652 km (0.067 R)
• M24: 51,352,760 km (0.045 R)
• M25: 53,688,282 km (0.096 R)
• M26: 54,368,354 km (0.104 R)
• M27: 60,200,278 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342

Radius: 8.3

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 9.38 AU - 14.16 AU

Year: 14603 Days

Day: 9.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 66,287,908 km

• M1: 108,608 km (0.099 R)
• M2: 392,844 km (0.079 R)
• M3: 913,145 km (0.113 R)
• M4: 1,257,819 km (0.11 R)
• M5: 1,733,839 km (0.106 R)
• M6: 2,269,998 km (0.063 R)
• M7: 2,741,231 km (0.045 R)
• M8: 3,022,924 km (0.108 R)
• M9: 3,371,936 km (0.082 R)
• M10: 4,407,303 km (0.072 R)
• M11: 5,814,420 km (0.079 R)
• M12: 6,319,164 km (0.115 R)
• M13: 7,010,605 km (0.029 R)
• M14: 7,416,015 km (0.111 R)
• M15: 8,589,162 km (0.035 R)
• M16: 8,865,918 km (0.101 R)
• M17: 9,682,423 km (0.099 R)
• M18: 10,600,505 km (0.11 R)
• M19: 12,374,437 km (0.089 R)
• M20: 13,828,528 km (0.032 R)
• M21: 14,662,087 km (0.119 R)
• M22: 19,576,228 km (0.106 R)
• M23: 21,040,193 km (0.083 R)
• M24: 29,677,226 km (0.106 R)
• M25: 29,992,877 km (0.034 R)
• M26: 31,278,372 km (0.103 R)
• M27: 33,501,695 km (0.094 R)
• M28: 34,073,458 km (0.037 R)
• M29: 34,651,953 km (0.063 R)
• M30: 36,306,206 km (0.106 R)
• M31: 39,011,086 km (0.104 R)
• M32: 42,912,149 km (0.052 R)
• M33: 47,782,906 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.8

Radius: 12.4

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 9.8 AU - 14.36 AU

Year: 15184 Days

Day: 13.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 66,287,908 km

• M1: 154,684 km (0.077 R)
• M2: 579,841 km (0.059 R)
• M3: 1,023,549 km (0.084 R)
• M4: 3,063,166 km (0.107 R)
• M5: 4,137,877 km (0.107 R)
• M6: 8,926,954 km (0.091 R)
• M7: 9,889,018 km (0.113 R)
• M8: 11,644,399 km (0.036 R)
• M9: 13,394,245 km (0.087 R)
• M10: 17,490,833 km (0.044 R)
• M11: 22,547,690 km (0.094 R)
• M12: 23,327,694 km (0.099 R)
• M13: 25,775,713 km (0.104 R)
• M14: 28,166,137 km (0.111 R)
• M15: 34,782,253 km (0.119 R)
• M16: 35,300,310 km (0.089 R)
• M17: 37,424,451 km (0.052 R)
• M18: 42,072,307 km (0.107 R)
• M19: 42,513,172 km (0.083 R)
• M20: 45,069,051 km (0.113 R)
• M21: 45,530,411 km (0.102 R)
• M22: 51,483,958 km (0.112 R)
• M23: 54,559,540 km (0.105 R)
• M24: 63,549,026 km (0.091 R)
• M25: 64,518,270 km (0.103 R)

Kuiper Belt

Range: 30.3 - 55.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 381 - 14,995 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit