🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.77

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.57 AU - 0.63 AU

Year: 172 Days

Day: 22.4 Hours

Environment

Temp: 199 °C

Axial Tilt: 21.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 48,475,867 km

• M1: 39,643 km (0.095 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.89 AU - 0.89 AU

Year: 311 Days

Day: 27 Hours

Environment

Temp: 142 °C

Axial Tilt: 19.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.78 AU - 1.26 AU

Year: 382 Days

Day: 39.8 Hours

Environment

Temp: 32 °C

Axial Tilt: 29.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 48,475,867 km

• M1: 20,046 km (0.112 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.97 AU - 1.09 AU

Year: 388 Days

Day: 26.6 Hours

Environment

Temp: 4 °C

Axial Tilt: 0 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.71

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.99 AU - 1.07 AU

Year: 388 Days

Day: 47 Hours

Environment

Temp: 21 °C

Axial Tilt: 35 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.85

Radius: 1.71

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.58 AU - 2.1 AU

Year: 926 Days

Day: 18.5 Hours

Environment

Temp: -57 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 48,475,867 km

• M1: 41,439 km (0.102 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.71 AU - 2.41 AU

Year: 1096 Days

Day: 15.3 Hours

Environment

Temp: -73 °C

Axial Tilt: 24 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.85

Radius: 1.71

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.78 AU - 2.98 AU

Year: 1813 Days

Day: 37.8 Hours

Environment

Temp: -104 °C

Axial Tilt: 29.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 4.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.3

Radius: 10.5

Gravity: 7.88 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 4.18 AU - 4.98 AU

Year: 3635 Days

Day: 12 Hours

Environment

Temp: -127 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 48,475,867 km

• M1: 137,480 km (0.115 R)
• M2: 471,832 km (0.047 R)
• M3: 883,824 km (0.118 R)
• M4: 1,248,245 km (0.028 R)
• M5: 1,750,893 km (0.045 R)
• M6: 2,400,896 km (0.111 R)
• M7: 2,740,035 km (0.105 R)
• M8: 3,242,683 km (0.075 R)
• M9: 4,022,687 km (0.118 R)
• M10: 4,409,996 km (0.066 R)
• M11: 4,797,305 km (0.114 R)
• M12: 5,233,831 km (0.118 R)
• M13: 6,305,999 km (0.077 R)
• M14: 6,767,359 km (0.117 R)
• M15: 9,226,000 km (0.095 R)
• M16: 10,108,179 km (0.085 R)
• M17: 10,784,361 km (0.102 R)
• M18: 11,580,970 km (0.094 R)
• M19: 14,839,810 km (0.069 R)
• M20: 16,333,694 km (0.079 R)
• M21: 17,264,941 km (0.074 R)
• M22: 17,986,302 km (0.09 R)
• M23: 19,042,463 km (0.077 R)
• M24: 20,139,464 km (0.089 R)
• M25: 22,814,573 km (0.118 R)
• M26: 25,640,925 km (0.113 R)

Planet 10 - Ice Giant

Semi-Major Axis: 12.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 273.5

Radius: 3

Gravity: 30.39 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 11.65 AU - 13.05 AU

Year: 16096 Days

Day: 24 Hours

Environment

Temp: -190 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 48,475,867 km

• M1: 37,250 km (0.085 R)
• M2: 153,787 km (0.072 R)
• M3: 305,928 km (0.111 R)
• M4: 560,094 km (0.064 R)
• M5: 706,850 km (0.101 R)
• M6: 949,049 km (0.114 R)
• M7: 1,345,184 km (0.036 R)
• M8: 1,580,352 km (0.109 R)
• M9: 1,684,771 km (0.083 R)
• M10: 2,490,805 km (0.107 R)
• M11: 2,653,417 km (0.11 R)
• M12: 3,888,497 km (0.105 R)
• M13: 4,334,598 km (0.056 R)
• M14: 5,195,833 km (0.106 R)
• M15: 6,092,074 km (0.045 R)
• M16: 7,006,566 km (0.045 R)
• M17: 7,413,173 km (0.056 R)
• M18: 9,586,381 km (0.107 R)
• M19: 12,264,931 km (0.114 R)
• M20: 12,914,635 km (0.116 R)
• M21: 14,540,763 km (0.119 R)
• M22: 16,088,653 km (0.103 R)
• M23: 19,036,030 km (0.07 R)
• M24: 20,309,257 km (0.094 R)
• M25: 23,558,523 km (0.092 R)
• M26: 28,440,500 km (0.104 R)
• M27: 32,265,418 km (0.076 R)
• M28: 32,710,322 km (0.039 R)
• M29: 34,070,017 km (0.117 R)
• M30: 40,141,297 km (0.068 R)
• M31: 41,305,618 km (0.06 R)
• M32: 41,698,611 km (0.07 R)
• M33: 42,625,370 km (0.091 R)
• M34: 44,933,067 km (0.09 R)
• M35: 48,330,734 km (0.106 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 272 - 12,717 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit