🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.61

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.71 AU - 0.73 AU

Year: 221 Days

Day: 23.7 Hours

Environment

Temp: 155 °C

Axial Tilt: 5.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 68,267,268 km

• M1: 128,654 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.96

Radius: 1.54

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.84 AU - 1.04 AU

Year: 330 Days

Day: 43.7 Hours

Environment

Temp: 145 °C

Axial Tilt: 29.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.79

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.81 AU - 1.17 AU

Year: 356 Days

Day: 20.7 Hours

Environment

Temp: 41 °C

Axial Tilt: 27.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 68,267,268 km

• M1: 35,155 km (0.119 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.08

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.15 AU - 1.55 AU

Year: 567 Days

Day: 41.9 Hours

Environment

Temp: -6 °C

Axial Tilt: 4.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 3.88 AU - 4.32 AU

Year: 3002 Days

Day: 28.4 Hours

Environment

Temp: -120 °C

Axial Tilt: 3.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 68,267,268 km

• M1: 41,139 km (0.075 R)
• M2: 71,957 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.8

Radius: 10.5

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 7.38 AU - 7.94 AU

Year: 7667 Days

Day: 6.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,267,268 km

• M1: 130,599 km (0.115 R)
• M2: 1,963,921 km (0.065 R)
• M3: 2,637,261 km (0.043 R)
• M4: 3,458,104 km (0.116 R)
• M5: 5,054,912 km (0.097 R)
• M6: 5,576,261 km (0.102 R)
• M7: 7,240,387 km (0.046 R)
• M8: 8,574,052 km (0.092 R)
• M9: 11,440,497 km (0.12 R)
• M10: 12,215,115 km (0.034 R)
• M11: 15,275,887 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 175.4

Radius: 5.4

Gravity: 6.02 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 13.33 AU - 20.75 AU

Year: 25439 Days

Day: 22.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 68,267,268 km

• M1: 69,563 km (0.07 R)
• M2: 331,060 km (0.062 R)
• M3: 729,888 km (0.086 R)
• M4: 1,017,714 km (0.086 R)
• M5: 2,293,934 km (0.079 R)
• M6: 3,886,702 km (0.088 R)
• M7: 10,285,302 km (0.106 R)
• M8: 12,243,239 km (0.066 R)
• M9: 14,573,226 km (0.11 R)
• M10: 15,482,482 km (0.112 R)
• M11: 20,258,544 km (0.075 R)
• M12: 25,133,639 km (0.081 R)
• M13: 28,640,961 km (0.1 R)
• M14: 43,609,724 km (0.113 R)
• M15: 48,948,124 km (0.074 R)
• M16: 49,256,745 km (0.089 R)
• M17: 52,254,686 km (0.084 R)
• M18: 52,577,219 km (0.032 R)
• M19: 56,551,137 km (0.042 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 289.2

Radius: 4.1

Gravity: 17.2 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 17.06 AU - 17.66 AU

Year: 26159 Days

Day: 23 Hours

Environment

Temp: -188 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 68,267,268 km

• M1: 51,312 km (0.094 R)
• M2: 276,606 km (0.098 R)
• M3: 410,347 km (0.05 R)
• M4: 970,591 km (0.064 R)
• M5: 1,663,678 km (0.047 R)
• M6: 1,802,206 km (0.119 R)
• M7: 1,948,662 km (0.067 R)
• M8: 2,524,763 km (0.082 R)
• M9: 3,128,839 km (0.063 R)
• M10: 3,340,969 km (0.056 R)
• M11: 4,515,761 km (0.099 R)
• M12: 5,068,974 km (0.041 R)
• M13: 5,901,636 km (0.103 R)
• M14: 6,734,298 km (0.116 R)
• M15: 7,269,858 km (0.1 R)
• M16: 7,785,372 km (0.108 R)
• M17: 8,888,657 km (0.094 R)
• M18: 9,587,578 km (0.07 R)
• M19: 9,809,731 km (0.102 R)
• M20: 10,322,253 km (0.059 R)
• M21: 11,277,136 km (0.083 R)
• M22: 11,966,782 km (0.089 R)
• M23: 13,707,952 km (0.079 R)
• M24: 14,061,153 km (0.094 R)
• M25: 14,275,975 km (0.04 R)
• M26: 14,859,556 km (0.063 R)
• M27: 16,865,814 km (0.117 R)
• M28: 18,526,649 km (0.093 R)
• M29: 20,752,217 km (0.046 R)
• M30: 21,311,713 km (0.115 R)
• M31: 21,595,201 km (0.097 R)
• M32: 22,073,166 km (0.115 R)
• M33: 31,193,998 km (0.091 R)
• M34: 35,240,322 km (0.051 R)
• M35: 37,663,209 km (0.118 R)
• M36: 39,480,673 km (0.053 R)
• M37: 43,138,341 km (0.085 R)
• M38: 47,335,309 km (0.077 R)
• M39: 47,495,828 km (0.043 R)
• M40: 48,956,352 km (0.11 R)
• M41: 53,691,573 km (0.047 R)
• M42: 68,062,842 km (0.084 R)

Kuiper Belt

Range: 30.3 - 58.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 230 - 18,416 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit