🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.57 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.94 AU - 1.32 AU

Year: 455 Days

Day: 37.6 Hours

Environment

Temp: 10 °C

Axial Tilt: 11.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.65 AU - 1.95 AU

Year: 915 Days

Day: 34 Hours

Environment

Temp: -72 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.71 AU - 2.31 AU

Year: 1079 Days

Day: 29 Hours

Environment

Temp: -83 °C

Axial Tilt: 17.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 59,039,062 km

• M1: 218,413 km (0.072 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.91

Radius: 0.96

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.26 AU - 2.64 AU

Year: 1452 Days

Day: 35.7 Hours

Environment

Temp: -105 °C

Axial Tilt: 36.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.79 AU - 4.33 AU

Year: 3098 Days

Day: 40.1 Hours

Environment

Temp: -132 °C

Axial Tilt: 9.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 59,039,062 km

• M1: 24,085 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.5

Radius: 10.5

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 7.47 AU - 7.79 AU

Year: 7982 Days

Day: 13.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 59,039,062 km

• M1: 130,599 km (0.093 R)
• M2: 529,876 km (0.106 R)
• M3: 1,129,314 km (0.096 R)
• M4: 1,462,170 km (0.093 R)
• M5: 1,913,357 km (0.072 R)
• M6: 2,274,336 km (0.113 R)
• M7: 2,765,017 km (0.075 R)
• M8: 3,118,068 km (0.086 R)
• M9: 5,022,300 km (0.116 R)
• M10: 6,879,408 km (0.059 R)
• M11: 7,299,778 km (0.12 R)
• M12: 7,634,727 km (0.059 R)
• M13: 8,739,059 km (0.11 R)
• M14: 9,232,732 km (0.088 R)
• M15: 9,585,184 km (0.114 R)
• M16: 10,151,562 km (0.074 R)
• M17: 12,170,834 km (0.027 R)
• M18: 12,642,815 km (0.117 R)
• M19: 18,612,219 km (0.051 R)
• M20: 19,686,781 km (0.118 R)
• M21: 20,869,053 km (0.05 R)
• M22: 21,341,333 km (0.045 R)
• M23: 22,028,436 km (0.108 R)
• M24: 24,925,249 km (0.097 R)
• M25: 25,841,686 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.9

Radius: 14.3

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 8.43 AU - 10.93 AU

Year: 11407 Days

Day: 10.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 59,039,062 km

• M1: 177,872 km (0.025 R)
• M2: 673,340 km (0.112 R)
• M3: 1,126,921 km (0.078 R)
• M4: 1,905,278 km (0.094 R)
• M5: 2,582,508 km (0.115 R)
• M6: 3,181,199 km (0.06 R)
• M7: 3,819,383 km (0.069 R)
• M8: 4,905,464 km (0.117 R)
• M9: 5,796,020 km (0.101 R)
• M10: 6,791,743 km (0.094 R)
• M11: 7,855,833 km (0.054 R)
• M12: 10,840,161 km (0.104 R)
• M13: 12,764,289 km (0.116 R)
• M14: 17,060,740 km (0.107 R)
• M15: 17,797,958 km (0.112 R)
• M16: 19,021,519 km (0.113 R)
• M17: 20,056,287 km (0.119 R)
• M18: 20,877,580 km (0.085 R)
• M19: 21,465,798 km (0.1 R)
• M20: 22,151,555 km (0.037 R)
• M21: 25,324,975 km (0.086 R)
• M22: 30,153,994 km (0.107 R)
• M23: 31,123,239 km (0.072 R)
• M24: 32,897,469 km (0.076 R)
• M25: 33,924,758 km (0.12 R)
• M26: 38,123,521 km (0.082 R)
• M27: 45,542,828 km (0.046 R)
• M28: 48,850,437 km (0.052 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.8

Radius: 9.4

Gravity: 9.57 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 8.75 AU - 11.61 AU

Year: 12302 Days

Day: 12 Hours

Environment

Temp: -189 °C

Axial Tilt: 177.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 59,039,062 km

• M1: 122,221 km (0.112 R)
• M2: 466,297 km (0.108 R)
• M3: 1,048,681 km (0.067 R)
• M4: 1,958,535 km (0.069 R)
• M5: 3,558,634 km (0.07 R)
• M6: 4,031,064 km (0.113 R)
• M7: 4,358,833 km (0.105 R)
• M8: 5,000,458 km (0.108 R)
• M9: 5,777,619 km (0.06 R)
• M10: 6,633,170 km (0.106 R)
• M11: 8,449,737 km (0.112 R)
• M12: 12,403,758 km (0.106 R)
• M13: 12,971,781 km (0.084 R)
• M14: 13,359,987 km (0.115 R)
• M15: 14,920,443 km (0.12 R)
• M16: 16,979,957 km (0.071 R)
• M17: 17,601,536 km (0.076 R)
• M18: 22,850,776 km (0.075 R)
• M19: 25,778,705 km (0.065 R)
• M20: 28,402,353 km (0.12 R)
• M21: 30,398,287 km (0.06 R)
• M22: 31,779,824 km (0.074 R)
• M23: 37,725,591 km (0.106 R)
• M24: 40,270,700 km (0.071 R)
• M25: 42,076,645 km (0.109 R)
• M26: 48,279,870 km (0.045 R)
• M27: 53,396,118 km (0.078 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 289 - 11,351 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit