🌌 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: 3.28

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.44 AU - 0.62 AU

Year: 114 Days

Day: 26 Hours

Environment

Temp: 359 °C

Axial Tilt: 124.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.51 AU - 0.61 AU

Year: 124 Days

Day: 19.5 Hours

Environment

Temp: 339 °C

Axial Tilt: 7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.43 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.88 AU - 2.98 AU

Year: 1119 Days

Day: 29.4 Hours

Environment

Temp: 10 °C

Axial Tilt: 9.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 94,386,112 km

• M1: 172,337 km (0.06 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.52

Radius: 0.77

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.44 AU - 4.04 AU

Year: 1722 Days

Day: 14.3 Hours

Environment

Temp: -49 °C

Axial Tilt: 4.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 3.39 AU - 5.57 AU

Year: 2800 Days

Day: 46.1 Hours

Environment

Temp: -67 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 4.43 AU - 4.73 AU

Year: 2894 Days

Day: 21.3 Hours

Environment

Temp: -67 °C

Axial Tilt: 47.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 9.64 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 14.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342.3

Radius: 14.9

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 13.85 AU - 15.55 AU

Year: 16643 Days

Day: 5.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 94,386,112 km

• M1: 188,045 km (0.08 R)
• M2: 807,978 km (0.063 R)
• M3: 1,280,408 km (0.038 R)
• M4: 2,080,906 km (0.048 R)
• M5: 3,318,829 km (0.053 R)
• M6: 3,962,548 km (0.079 R)
• M7: 4,907,857 km (0.093 R)
• M8: 9,735,530 km (0.114 R)
• M9: 10,200,032 km (0.109 R)
• M10: 11,455,008 km (0.118 R)
• M11: 12,208,682 km (0.05 R)
• M12: 19,724,928 km (0.115 R)
• M13: 20,470,973 km (0.079 R)
• M14: 24,582,521 km (0.081 R)
• M15: 25,837,497 km (0.108 R)
• M16: 36,338,220 km (0.091 R)
• M17: 38,733,581 km (0.052 R)
• M18: 40,964,684 km (0.041 R)
• M19: 41,636,827 km (0.116 R)
• M20: 43,280,010 km (0.114 R)
• M21: 44,117,758 km (0.099 R)
• M22: 50,134,136 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 991.7

Radius: 3.2

Gravity: 96.85 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 17.13 AU - 19.31 AU

Year: 22965 Days

Day: 16 Hours

Environment

Temp: -160 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 94,386,112 km

• M1: 39,793 km (0.116 R)
• M2: 247,136 km (0.093 R)
• M3: 358,287 km (0.1 R)
• M4: 503,247 km (0.12 R)
• M5: 1,295,667 km (0.106 R)
• M6: 1,531,733 km (0.114 R)
• M7: 1,756,129 km (0.079 R)
• M8: 2,133,116 km (0.058 R)
• M9: 2,317,121 km (0.067 R)
• M10: 2,536,581 km (0.116 R)
• M11: 2,664,338 km (0.11 R)
• M12: 4,896,638 km (0.062 R)
• M13: 7,029,754 km (0.076 R)
• M14: 7,333,587 km (0.107 R)
• M15: 9,835,162 km (0.12 R)
• M16: 10,473,796 km (0.109 R)
• M17: 11,276,089 km (0.069 R)
• M18: 11,482,833 km (0.103 R)
• M19: 12,555,001 km (0.083 R)
• M20: 14,649,671 km (0.05 R)
• M21: 15,144,989 km (0.082 R)
• M22: 16,519,943 km (0.05 R)
• M23: 18,735,039 km (0.079 R)
• M24: 20,725,887 km (0.067 R)
• M25: 24,888,299 km (0.103 R)
• M26: 25,711,236 km (0.06 R)
• M27: 26,310,077 km (0.107 R)
• M28: 27,411,267 km (0.068 R)
• M29: 29,314,451 km (0.104 R)
• M30: 31,848,938 km (0.092 R)
• M31: 32,818,482 km (0.071 R)
• M32: 33,239,899 km (0.096 R)
• M33: 36,441,293 km (0.084 R)
• M34: 46,203,751 km (0.097 R)
• M35: 48,164,231 km (0.111 R)
• M36: 52,824,355 km (0.068 R)
• M37: 59,840,195 km (0.114 R)
• M38: 61,102,054 km (0.095 R)
• M39: 73,266,904 km (0.114 R)
• M40: 80,166,058 km (0.041 R)
• M41: 84,034,210 km (0.083 R)
• M42: 89,109,916 km (0.103 R)

Kuiper Belt

Range: 37.1 - 66.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 380 - 14,536 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit