🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.6 AU - 0.76 AU

Year: 210 Days

Day: 27.1 Hours

Environment

Temp: 144 °C

Axial Tilt: 42.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.32 AU - 1.42 AU

Year: 601 Days

Day: 16.7 Hours

Environment

Temp: -36 °C

Axial Tilt: 26.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,829,188 km

• M1: 46,375 km (0.039 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.9

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.38 AU - 1.4 AU

Year: 614 Days

Day: 19.7 Hours

Environment

Temp: -40 °C

Axial Tilt: 16.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 65,829,188 km

• M1: 102,923 km (0.105 R)
• M2: 807,529 km (0.088 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 2.08 AU - 3.1 AU

Year: 1562 Days

Day: 36.1 Hours

Environment

Temp: -102 °C

Axial Tilt: 33.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.01

Radius: 1

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.67 AU - 3.49 AU

Year: 2026 Days

Day: 30.3 Hours

Environment

Temp: -114 °C

Axial Tilt: 29.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 3.1 AU - 3.64 AU

Year: 2318 Days

Day: 28.3 Hours

Environment

Temp: -111 °C

Axial Tilt: 7.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.3 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 13.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 28.8

Radius: 6.4

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 10.97 AU - 15.47 AU

Year: 18013 Days

Day: 24.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,829,188 km

• M1: 79,586 km (0.104 R)
• M2: 436,826 km (0.12 R)
• M3: 770,579 km (0.108 R)
• M4: 1,080,845 km (0.069 R)
• M5: 1,315,264 km (0.066 R)
• M6: 1,665,473 km (0.03 R)
• M7: 5,607,527 km (0.111 R)
• M8: 5,856,607 km (0.081 R)
• M9: 6,406,978 km (0.099 R)
• M10: 9,183,364 km (0.111 R)
• M11: 12,159,913 km (0.114 R)
• M12: 14,971,755 km (0.08 R)
• M13: 18,189,306 km (0.12 R)
• M14: 18,736,236 km (0.089 R)
• M15: 18,982,773 km (0.085 R)
• M16: 21,839,793 km (0.028 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 298.3

Radius: 3.7

Gravity: 21.79 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 14.51 AU - 17.85 AU

Year: 24389 Days

Day: 24.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 65,829,188 km

• M1: 73,752 km (0.097 R)
• M2: 193,879 km (0.089 R)
• M3: 330,910 km (0.091 R)
• M4: 476,170 km (0.061 R)
• M5: 921,672 km (0.105 R)
• M6: 1,073,814 km (0.103 R)
• M7: 1,284,148 km (0.111 R)
• M8: 2,431,564 km (0.109 R)
• M9: 3,089,645 km (0.12 R)
• M10: 3,271,257 km (0.108 R)
• M11: 3,888,497 km (0.057 R)
• M12: 5,349,620 km (0.099 R)
• M13: 8,121,818 km (0.118 R)
• M14: 9,402,825 km (0.081 R)
• M15: 10,636,409 km (0.105 R)
• M16: 11,352,833 km (0.084 R)
• M17: 11,722,788 km (0.114 R)
• M18: 12,228,579 km (0.115 R)
• M19: 12,552,009 km (0.114 R)
• M20: 17,049,370 km (0.088 R)
• M21: 18,362,989 km (0.109 R)
• M22: 18,958,389 km (0.081 R)
• M23: 19,217,492 km (0.075 R)
• M24: 19,566,504 km (0.108 R)
• M25: 21,468,940 km (0.08 R)
• M26: 24,293,797 km (0.118 R)
• M27: 25,322,581 km (0.059 R)
• M28: 28,582,618 km (0.104 R)
• M29: 29,728,538 km (0.045 R)
• M30: 29,961,312 km (0.079 R)
• M31: 36,052,040 km (0.117 R)
• M32: 36,582,813 km (0.087 R)
• M33: 41,018,091 km (0.07 R)
• M34: 45,489,571 km (0.083 R)
• M35: 45,643,956 km (0.114 R)
• M36: 49,945,942 km (0.115 R)
• M37: 53,129,983 km (0.041 R)
• M38: 58,246,829 km (0.107 R)
• M39: 61,582,263 km (0.05 R)
• M40: 64,847,386 km (0.074 R)
• M41: 65,435,305 km (0.074 R)
• M42: 65,829,197 km (0.113 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 392 - 13,504 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit