🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.49

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.86 AU - 1.28 AU

Year: 424 Days

Day: 44.7 Hours

Environment

Temp: 5 °C

Axial Tilt: 36.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.94 AU - 1.5 AU

Year: 516 Days

Day: 19 Hours

Environment

Temp: -35 °C

Axial Tilt: 4.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.35 AU - 1.69 AU

Year: 718 Days

Day: 28.9 Hours

Environment

Temp: -57 °C

Axial Tilt: 47.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.67

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.34 AU - 1.88 AU

Year: 782 Days

Day: 15.4 Hours

Environment

Temp: -54 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.77 AU - 1.81 AU

Year: 917 Days

Day: 41.9 Hours

Environment

Temp: -62 °C

Axial Tilt: 21.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 76,825,420 km

• M1: 123,717 km (0.118 R)
• M2: 543,040 km (0.094 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.32 AU - 2.96 AU

Year: 1642 Days

Day: 46.1 Hours

Environment

Temp: -97 °C

Axial Tilt: 12.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.78 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.2

Radius: 8.5

Gravity: 8.43 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.76 AU - 6.06 AU

Year: 4166 Days

Day: 13.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 76,825,420 km

• M1: 109,506 km (0.086 R)
• M2: 397,332 km (0.044 R)
• M3: 810,970 km (0.047 R)
• M4: 1,194,090 km (0.061 R)
• M5: 2,071,332 km (0.119 R)
• M6: 2,680,195 km (0.107 R)
• M7: 3,081,417 km (0.093 R)
• M8: 3,422,949 km (0.096 R)
• M9: 3,939,361 km (0.067 R)
• M10: 5,391,208 km (0.076 R)
• M11: 5,803,949 km (0.09 R)
• M12: 6,692,859 km (0.093 R)
• M13: 7,072,838 km (0.071 R)
• M14: 7,910,735 km (0.118 R)
• M15: 10,951,163 km (0.115 R)
• M16: 11,390,232 km (0.109 R)
• M17: 11,659,209 km (0.109 R)
• M18: 13,264,843 km (0.103 R)
• M19: 15,120,006 km (0.096 R)
• M20: 15,554,588 km (0.111 R)
• M21: 17,495,471 km (0.092 R)
• M22: 18,401,136 km (0.111 R)
• M23: 18,771,840 km (0.09 R)
• M24: 19,084,799 km (0.109 R)
• M25: 20,174,470 km (0.111 R)
• M26: 21,714,131 km (0.109 R)
• M27: 22,618,300 km (0.106 R)
• M28: 23,043,906 km (0.114 R)
• M29: 23,474,898 km (0.114 R)
• M30: 24,131,483 km (0.052 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 714.8

Radius: 6.4

Gravity: 17.45 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 13.37 AU - 14.45 AU

Year: 19864 Days

Day: 17.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 163.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 76,825,420 km

• M1: 79,586 km (0.116 R)
• M2: 323,431 km (0.04 R)
• M3: 693,536 km (0.093 R)
• M4: 1,250,189 km (0.053 R)
• M5: 1,556,865 km (0.076 R)
• M6: 2,131,022 km (0.113 R)
• M7: 2,501,276 km (0.116 R)
• M8: 2,763,073 km (0.092 R)
• M9: 4,809,422 km (0.104 R)
• M10: 6,706,622 km (0.077 R)
• M11: 8,567,021 km (0.088 R)
• M12: 8,781,096 km (0.083 R)
• M13: 9,164,066 km (0.041 R)
• M14: 13,270,678 km (0.116 R)
• M15: 13,848,275 km (0.076 R)
• M16: 14,669,717 km (0.071 R)
• M17: 15,523,173 km (0.115 R)
• M18: 18,370,319 km (0.081 R)
• M19: 22,547,241 km (0.105 R)
• M20: 30,552,672 km (0.117 R)
• M21: 39,521,065 km (0.118 R)
• M22: 39,965,819 km (0.071 R)
• M23: 44,920,351 km (0.057 R)
• M24: 49,923,053 km (0.111 R)
• M25: 53,276,290 km (0.089 R)
• M26: 54,915,733 km (0.088 R)
• M27: 56,401,090 km (0.097 R)
• M28: 57,913,076 km (0.069 R)
• M29: 62,811,658 km (0.069 R)
• M30: 63,417,380 km (0.075 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 297 - 12,008 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit