🌌 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: 1.27

Radius: 1.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.43 AU - 0.61 AU

Year: 141 Days

Day: 45 Hours

Environment

Temp: 186 °C

Axial Tilt: 35.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 27,695,700 km

• M1: 40,691 km (0.047 R)
• M2: 58,343 km (0.088 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.73

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.98 AU - 1.04 AU

Year: 380 Days

Day: 36.9 Hours

Environment

Temp: 9 °C

Axial Tilt: 39.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.17

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.02 AU - 1.26 AU

Year: 456 Days

Day: 42.8 Hours

Environment

Temp: -13 °C

Axial Tilt: 28.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.63

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2.13 AU - 2.57 AU

Year: 1350 Days

Day: 30.5 Hours

Environment

Temp: -99 °C

Axial Tilt: 48.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.61 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.1

Radius: 11.5

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 4.64 AU - 5.08 AU

Year: 4015 Days

Day: 6.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 27,695,700 km

• M1: 143,165 km (0.056 R)
• M2: 557,850 km (0.095 R)
• M3: 986,448 km (0.109 R)
• M4: 1,381,237 km (0.116 R)
• M5: 2,816,030 km (0.04 R)
• M6: 3,480,095 km (0.109 R)
• M7: 3,992,618 km (0.087 R)
• M8: 4,600,583 km (0.074 R)
• M9: 5,395,397 km (0.111 R)
• M10: 6,251,246 km (0.109 R)
• M11: 7,414,370 km (0.079 R)
• M12: 8,300,438 km (0.064 R)
• M13: 10,322,253 km (0.096 R)
• M14: 11,511,407 km (0.074 R)
• M15: 12,789,870 km (0.074 R)
• M16: 13,534,419 km (0.067 R)
• M17: 14,111,717 km (0.085 R)
• M18: 14,856,415 km (0.049 R)
• M19: 16,102,116 km (0.068 R)
• M20: 18,859,654 km (0.108 R)
• M21: 19,824,411 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336

Radius: 10.7

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 4.76 AU - 5.86 AU

Year: 4585 Days

Day: 11.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 82 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,695,700 km

• M1: 133,292 km (0.119 R)
• M2: 512,373 km (0.111 R)
• M3: 1,003,652 km (0.045 R)
• M4: 1,673,103 km (0.115 R)
• M5: 2,976,848 km (0.071 R)
• M6: 4,184,701 km (0.117 R)
• M7: 4,863,726 km (0.068 R)
• M8: 5,800,657 km (0.111 R)
• M9: 6,674,758 km (0.117 R)
• M10: 8,790,072 km (0.094 R)
• M11: 9,298,405 km (0.112 R)
• M12: 10,983,625 km (0.118 R)
• M13: 12,274,056 km (0.097 R)
• M14: 12,817,695 km (0.117 R)
• M15: 13,519,608 km (0.096 R)
• M16: 14,949,166 km (0.091 R)
• M17: 15,412,620 km (0.088 R)
• M18: 17,703,861 km (0.088 R)
• M19: 18,870,874 km (0.088 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.5

Radius: 10.5

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 6.82 AU - 6.9 AU

Year: 6733 Days

Day: 11.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 27,695,700 km

• M1: 131,048 km (0.113 R)
• M2: 575,952 km (0.042 R)
• M3: 1,047,335 km (0.104 R)
• M4: 2,468,814 km (0.114 R)
• M5: 3,427,437 km (0.043 R)
• M6: 5,191,645 km (0.094 R)
• M7: 7,945,442 km (0.072 R)
• M8: 8,446,745 km (0.086 R)
• M9: 9,478,222 km (0.11 R)
• M10: 9,934,944 km (0.077 R)
• M11: 12,195,368 km (0.115 R)
• M12: 12,820,687 km (0.109 R)
• M13: 13,206,051 km (0.095 R)
• M14: 16,827,068 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.1

Radius: 11.3

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 5.87 AU - 8.53 AU

Year: 7240 Days

Day: 7.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 27,695,700 km

• M1: 140,472 km (0.042 R)
• M2: 701,165 km (0.09 R)
• M3: 1,233,135 km (0.052 R)
• M4: 1,775,128 km (0.034 R)
• M5: 2,211,356 km (0.041 R)
• M6: 3,074,984 km (0.116 R)
• M7: 3,605,608 km (0.066 R)
• M8: 4,503,644 km (0.109 R)
• M9: 5,084,084 km (0.043 R)
• M10: 7,063,413 km (0.106 R)
• M11: 8,391,094 km (0.064 R)
• M12: 9,232,133 km (0.069 R)
• M13: 10,002,862 km (0.096 R)
• M14: 10,511,345 km (0.115 R)
• M15: 12,093,941 km (0.06 R)
• M16: 12,720,307 km (0.069 R)
• M17: 14,143,282 km (0.086 R)
• M18: 16,531,014 km (0.078 R)
• M19: 20,973,771 km (0.098 R)
• M20: 21,597,445 km (0.109 R)
• M21: 22,376,251 km (0.103 R)
• M22: 24,140,608 km (0.109 R)
• M23: 25,523,491 km (0.103 R)
• M24: 26,958,434 km (0.076 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 386 - 17,870 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit