🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.64 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.1

Radius: 0.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.11 AU - 1.43 AU

Year: 505 Days

Day: 16.6 Hours

Environment

Temp: 2 °C

Axial Tilt: 15.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 104,880,479 km

• M1: 9,275 km (0.113 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.79 AU - 2.11 AU

Year: 962 Days

Day: 32.8 Hours

Environment

Temp: -54 °C

Axial Tilt: 89.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.61

Radius: 1.21

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.33 AU - 2.51 AU

Year: 1329 Days

Day: 25.3 Hours

Environment

Temp: -67 °C

Axial Tilt: 9.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.38 AU - 3.04 AU

Year: 1575 Days

Day: 34.7 Hours

Environment

Temp: -75 °C

Axial Tilt: 9.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 104,880,479 km

• M1: 34,408 km (0.117 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.64 AU - 2.78 AU

Year: 1575 Days

Day: 47.6 Hours

Environment

Temp: -83 °C

Axial Tilt: 44.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.19

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 3.39 AU - 5.63 AU

Year: 3382 Days

Day: 26.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 19.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.4

Radius: 14.8

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 6.12 AU - 6.5 AU

Year: 5597 Days

Day: 8.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 104,880,479 km

• M1: 184,005 km (0.068 R)
• M2: 652,845 km (0.104 R)
• M3: 1,397,244 km (0.113 R)
• M4: 2,144,186 km (0.11 R)
• M5: 2,853,131 km (0.044 R)
• M6: 3,651,086 km (0.083 R)
• M7: 5,272,876 km (0.104 R)
• M8: 6,670,120 km (0.104 R)
• M9: 7,754,705 km (0.082 R)
• M10: 9,598,349 km (0.099 R)
• M11: 11,116,319 km (0.098 R)
• M12: 12,101,121 km (0.093 R)
• M13: 14,083,443 km (0.104 R)
• M14: 15,749,664 km (0.074 R)
• M15: 17,981,664 km (0.108 R)
• M16: 18,490,746 km (0.116 R)
• M17: 19,009,551 km (0.116 R)
• M18: 20,212,168 km (0.12 R)
• M19: 20,693,425 km (0.096 R)
• M20: 22,110,565 km (0.096 R)
• M21: 24,202,243 km (0.051 R)
• M22: 25,614,746 km (0.119 R)
• M23: 26,998,676 km (0.097 R)
• M24: 28,431,823 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 94.8

Radius: 7.7

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 14.49 AU - 14.91 AU

Year: 19901 Days

Day: 24.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 104,880,479 km

• M1: 97,837 km (0.082 R)
• M2: 377,136 km (0.055 R)
• M3: 1,162,974 km (0.085 R)
• M4: 1,426,715 km (0.083 R)
• M5: 2,030,043 km (0.099 R)
• M6: 2,832,336 km (0.093 R)
• M7: 3,250,612 km (0.09 R)
• M8: 6,713,354 km (0.119 R)
• M9: 7,266,567 km (0.062 R)
• M10: 14,339,405 km (0.055 R)
• M11: 20,509,120 km (0.094 R)
• M12: 21,357,490 km (0.099 R)
• M13: 33,858,486 km (0.062 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 776.2

Radius: 4.5

Gravity: 38.33 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 17.32 AU - 21.68 AU

Year: 30405 Days

Day: 20 Hours

Environment

Temp: -200 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 104,880,479 km

• M1: 55,950 km (0.063 R)
• M2: 280,945 km (0.1 R)
• M3: 424,110 km (0.117 R)
• M4: 1,026,690 km (0.107 R)
• M5: 1,348,026 km (0.055 R)
• M6: 2,212,253 km (0.116 R)
• M7: 3,209,174 km (0.094 R)
• M8: 3,926,645 km (0.056 R)
• M9: 5,717,481 km (0.112 R)
• M10: 6,131,718 km (0.093 R)
• M11: 7,822,173 km (0.109 R)
• M12: 8,046,271 km (0.076 R)
• M13: 8,507,033 km (0.117 R)
• M14: 8,924,560 km (0.038 R)
• M15: 11,219,392 km (0.066 R)
• M16: 12,163,354 km (0.032 R)
• M17: 12,464,195 km (0.064 R)
• M18: 22,472,443 km (0.096 R)
• M19: 24,558,136 km (0.099 R)
• M20: 32,581,818 km (0.105 R)
• M21: 36,010,751 km (0.116 R)
• M22: 45,709,031 km (0.033 R)
• M23: 46,801,843 km (0.05 R)
• M24: 56,593,323 km (0.049 R)
• M25: 59,345,625 km (0.059 R)
• M26: 61,083,055 km (0.061 R)
• M27: 63,752,030 km (0.107 R)
• M28: 64,886,730 km (0.101 R)
• M29: 81,681,485 km (0.053 R)
• M30: 85,739,626 km (0.118 R)
• M31: 86,566,902 km (0.094 R)
• M32: 93,378,841 km (0.093 R)

Kuiper Belt

Range: 31.1 - 58.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 504 - 12,220 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit