🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.72

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.51 AU - 0.55 AU

Year: 142 Days

Day: 28.8 Hours

Environment

Temp: 256 °C

Axial Tilt: 3.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.63

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.44 AU - 0.64 AU

Year: 146 Days

Day: 19 Hours

Environment

Temp: 205 °C

Axial Tilt: 22.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.39

Radius: 0.69

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.69 AU - 0.89 AU

Year: 258 Days

Day: 19.1 Hours

Environment

Temp: 126 °C

Axial Tilt: 18.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 66,348,389 km

• M1: 111,600 km (0.112 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.89 AU - 1.15 AU

Year: 378 Days

Day: 23.4 Hours

Environment

Temp: 20 °C

Axial Tilt: 18.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 66,348,389 km

• M1: 213,327 km (0.064 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.49

Radius: 1.82

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 2.16 AU - 2.34 AU

Year: 1239 Days

Day: 19.8 Hours

Environment

Temp: -78 °C

Axial Tilt: 31.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.25 AU - 3.21 AU

Year: 1656 Days

Day: 43.5 Hours

Environment

Temp: -92 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 3.42 AU - 4.6 AU

Year: 2948 Days

Day: 13.4 Hours

Environment

Temp: -129 °C

Axial Tilt: 5.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,348,389 km

• M1: 345,122 km (0.096 R)

Planet 8 - Terrestrial

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 3.65 AU - 5.47 AU

Year: 3575 Days

Day: 45.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,348,389 km

• M1: 46,226 km (0.025 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 292.5

Radius: 3.3

Gravity: 26.86 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 12.42 AU - 12.6 AU

Year: 16243 Days

Day: 22.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,348,389 km

• M1: 43,234 km (0.058 R)
• M2: 199,264 km (0.075 R)
• M3: 747,241 km (0.06 R)
• M4: 1,043,894 km (0.118 R)
• M5: 1,182,571 km (0.073 R)
• M6: 1,497,026 km (0.068 R)
• M7: 1,704,817 km (0.1 R)
• M8: 1,881,193 km (0.073 R)
• M9: 6,808,349 km (0.078 R)
• M10: 8,745,940 km (0.103 R)
• M11: 11,076,526 km (0.085 R)
• M12: 12,561,284 km (0.109 R)
• M13: 13,043,588 km (0.078 R)
• M14: 18,953,302 km (0.103 R)
• M15: 32,071,240 km (0.048 R)
• M16: 36,008,058 km (0.064 R)
• M17: 38,972,938 km (0.068 R)
• M18: 40,514,694 km (0.086 R)
• M19: 45,102,561 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 13.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 557.8

Radius: 7.4

Gravity: 10.19 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 13.31 AU - 13.53 AU

Year: 18047 Days

Day: 16.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 66,348,389 km

• M1: 99,333 km (0.082 R)
• M2: 417,528 km (0.12 R)
• M3: 679,773 km (0.074 R)
• M4: 940,971 km (0.059 R)
• M5: 2,162,886 km (0.109 R)
• M6: 3,131,981 km (0.093 R)
• M7: 3,756,403 km (0.099 R)
• M8: 5,697,585 km (0.112 R)
• M9: 7,192,815 km (0.082 R)
• M10: 8,423,856 km (0.108 R)
• M11: 11,357,620 km (0.039 R)
• M12: 14,910,121 km (0.113 R)
• M13: 17,788,384 km (0.099 R)
• M14: 19,664,640 km (0.104 R)
• M15: 20,378,521 km (0.114 R)
• M16: 21,109,456 km (0.078 R)
• M17: 25,445,551 km (0.102 R)
• M18: 26,615,406 km (0.078 R)
• M19: 28,606,703 km (0.098 R)
• M20: 29,638,629 km (0.096 R)
• M21: 31,655,209 km (0.097 R)
• M22: 39,926,176 km (0.09 R)
• M23: 41,795,252 km (0.109 R)
• M24: 44,326,597 km (0.072 R)
• M25: 61,691,469 km (0.101 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 168 - 14,484 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit