🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.61

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.56 AU - 0.68 AU

Year: 177 Days

Day: 12.4 Hours

Environment

Temp: 183 °C

Axial Tilt: 26 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 109,722,095 km

• M1: 271,221 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.31

Radius: 1.61

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.57 AU - 0.75 AU

Year: 194 Days

Day: 22.3 Hours

Environment

Temp: 223 °C

Axial Tilt: 33.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.29

Radius: 0.61

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.57 AU - 0.91 AU

Year: 230 Days

Day: 20.5 Hours

Environment

Temp: 149 °C

Axial Tilt: 23 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.71 AU - 1.11 AU

Year: 314 Days

Day: 42.5 Hours

Environment

Temp: 76 °C

Axial Tilt: 35.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.65

Radius: 1.22

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.01 AU - 1.23 AU

Year: 429 Days

Day: 13 Hours

Environment

Temp: 20 °C

Axial Tilt: 17.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.33

Radius: 1.12

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.15 AU - 1.67 AU

Year: 606 Days

Day: 47.6 Hours

Environment

Temp: -8 °C

Axial Tilt: 29.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 7 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.22 AU - 1.76 AU

Year: 658 Days

Day: 36.2 Hours

Environment

Temp: -31 °C

Axial Tilt: 37.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 109,722,095 km

• M1: 45,328 km (0.117 R)

Planet 8 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.38 AU - 1.78 AU

Year: 718 Days

Day: 39.5 Hours

Environment

Temp: -29 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.3

Radius: 15

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 7.04 AU - 11 AU

Year: 9797 Days

Day: 14.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 109,722,095 km

• M1: 187,297 km (0.057 R)
• M2: 723,904 km (0.065 R)
• M3: 1,196,185 km (0.088 R)
• M4: 1,902,287 km (0.1 R)
• M5: 2,626,939 km (0.094 R)
• M6: 3,287,264 km (0.074 R)
• M7: 6,141,142 km (0.118 R)
• M8: 6,788,003 km (0.08 R)
• M9: 8,129,896 km (0.094 R)
• M10: 9,150,603 km (0.066 R)
• M11: 12,252,664 km (0.116 R)
• M12: 13,912,602 km (0.054 R)
• M13: 17,079,439 km (0.03 R)
• M14: 19,547,954 km (0.061 R)
• M15: 20,615,783 km (0.109 R)
• M16: 22,778,221 km (0.074 R)
• M17: 23,501,077 km (0.081 R)
• M18: 24,802,878 km (0.088 R)
• M19: 32,155,614 km (0.11 R)
• M20: 36,878,717 km (0.109 R)
• M21: 42,316,002 km (0.064 R)
• M22: 48,413,461 km (0.104 R)
• M23: 49,308,356 km (0.062 R)
• M24: 49,911,086 km (0.113 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 787.6

Radius: 5.2

Gravity: 29.13 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 19.36 AU - 20.6 AU

Year: 32299 Days

Day: 21.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 109,722,095 km

• M1: 65,823 km (0.076 R)
• M2: 258,954 km (0.083 R)
• M3: 575,353 km (0.04 R)
• M4: 1,169,706 km (0.091 R)
• M5: 2,395,361 km (0.11 R)
• M6: 2,766,813 km (0.052 R)
• M7: 3,085,007 km (0.117 R)
• M8: 3,759,993 km (0.111 R)
• M9: 3,969,729 km (0.036 R)
• M10: 5,309,827 km (0.114 R)
• M11: 5,574,166 km (0.056 R)
• M12: 7,349,295 km (0.083 R)
• M13: 8,364,316 km (0.056 R)
• M14: 16,023,278 km (0.06 R)
• M15: 25,077,390 km (0.046 R)
• M16: 31,021,063 km (0.088 R)
• M17: 32,604,557 km (0.045 R)
• M18: 35,002,910 km (0.059 R)
• M19: 35,775,732 km (0.086 R)
• M20: 38,000,552 km (0.095 R)
• M21: 42,199,465 km (0.084 R)
• M22: 43,251,437 km (0.089 R)
• M23: 44,320,613 km (0.106 R)
• M24: 47,633,907 km (0.103 R)
• M25: 49,543,972 km (0.102 R)
• M26: 51,504,752 km (0.077 R)
• M27: 57,482,084 km (0.116 R)
• M28: 73,778,678 km (0.079 R)
• M29: 79,738,807 km (0.101 R)
• M30: 88,838,696 km (0.088 R)
• M31: 91,726,982 km (0.107 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: 422 - 12,404 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit