🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.45

Radius: 1.16

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.41 AU - 0.63 AU

Year: 134 Days

Day: 32.6 Hours

Environment

Temp: 272 °C

Axial Tilt: 17.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.95

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.81 AU - 0.81 AU

Year: 261 Days

Day: 26 Hours

Environment

Temp: 195 °C

Axial Tilt: 3.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.81 AU - 1.03 AU

Year: 316 Days

Day: 23.5 Hours

Environment

Temp: 173 °C

Axial Tilt: 32.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 91,928,797 km

• M1: 223,499 km (0.115 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.71

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.57 AU - 2.53 AU

Year: 1051 Days

Day: 22.3 Hours

Environment

Temp: -71 °C

Axial Tilt: 29.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 91,928,797 km

• M1: 46,076 km (0.11 R)
• M2: 1,163,123 km (0.092 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.15 AU - 2.77 AU

Year: 1382 Days

Day: 31.9 Hours

Environment

Temp: -82 °C

Axial Tilt: 4.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 3.66 AU - 3.98 AU

Year: 2674 Days

Day: 14.8 Hours

Environment

Temp: -119 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 9.99 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 16.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 23.7

Radius: 6.9

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 15.33 AU - 16.97 AU

Year: 23245 Days

Day: 18.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 91,928,797 km

• M1: 86,318 km (0.078 R)
• M2: 380,727 km (0.052 R)
• M3: 679,174 km (0.102 R)
• M4: 1,113,008 km (0.112 R)
• M5: 1,900,791 km (0.113 R)
• M6: 2,886,341 km (0.095 R)
• M7: 3,460,199 km (0.059 R)
• M8: 5,279,907 km (0.039 R)
• M9: 7,798,836 km (0.107 R)
• M10: 10,670,966 km (0.1 R)
• M11: 12,803,783 km (0.118 R)
• M12: 14,391,764 km (0.076 R)
• M13: 26,918,940 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 884.4

Radius: 4.1

Gravity: 52.61 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 12.29 AU - 20.13 AU

Year: 23375 Days

Day: 23.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 91,928,797 km

• M1: 71,807 km (0.075 R)
• M2: 354,846 km (0.075 R)
• M3: 551,867 km (0.079 R)
• M4: 691,142 km (0.054 R)
• M5: 1,083,687 km (0.073 R)
• M6: 1,538,913 km (0.119 R)
• M7: 1,760,767 km (0.12 R)
• M8: 2,657,756 km (0.082 R)
• M9: 3,694,170 km (0.08 R)
• M10: 3,889,844 km (0.102 R)
• M11: 4,934,935 km (0.11 R)
• M12: 6,761,225 km (0.087 R)
• M13: 7,153,920 km (0.082 R)
• M14: 7,984,786 km (0.064 R)
• M15: 8,935,780 km (0.087 R)
• M16: 10,597,812 km (0.04 R)
• M17: 13,729,494 km (0.071 R)
• M18: 14,924,033 km (0.112 R)
• M19: 16,014,003 km (0.079 R)
• M20: 17,700,719 km (0.116 R)
• M21: 19,016,881 km (0.084 R)
• M22: 23,024,758 km (0.114 R)
• M23: 23,354,472 km (0.103 R)
• M24: 24,705,191 km (0.095 R)
• M25: 25,166,700 km (0.091 R)
• M26: 29,971,933 km (0.062 R)
• M27: 30,102,682 km (0.068 R)
• M28: 32,796,341 km (0.115 R)
• M29: 36,681,547 km (0.053 R)
• M30: 53,925,993 km (0.059 R)
• M31: 54,507,331 km (0.063 R)
• M32: 56,078,108 km (0.067 R)
• M33: 57,678,805 km (0.094 R)
• M34: 58,490,374 km (0.085 R)
• M35: 65,699,196 km (0.092 R)
• M36: 67,701,863 km (0.069 R)
• M37: 70,204,486 km (0.04 R)
• M38: 72,062,790 km (0.109 R)
• M39: 76,363,280 km (0.077 R)
• M40: 85,733,941 km (0.052 R)

Kuiper Belt

Range: 30.6 - 60.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 221 - 14,458 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit