🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.61 AU - 0.79 AU

Year: 175 Days

Day: 42.3 Hours

Environment

Temp: 280 °C

Axial Tilt: 3.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 78,455,561 km

• M1: 101,727 km (0.104 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.57 AU - 0.87 AU

Year: 183 Days

Day: 31 Hours

Environment

Temp: 294 °C

Axial Tilt: 26.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.89 AU - 2.33 AU

Year: 917 Days

Day: 33.5 Hours

Environment

Temp: 35 °C

Axial Tilt: 9.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 78,455,561 km

• M1: 33,061 km (0.067 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.55 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.85

Radius: 1.71

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 2.11 AU - 2.99 AU

Year: 1218 Days

Day: 14.7 Hours

Environment

Temp: 14 °C

Axial Tilt: 31.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 3.43 AU - 5.25 AU

Year: 2705 Days

Day: 18.2 Hours

Environment

Temp: -77 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.06

Radius: 1.02

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 5.2 AU - 5.52 AU

Year: 3713 Days

Day: 40.1 Hours

Environment

Temp: -83 °C

Axial Tilt: 43.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 6.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.79

Radius: 0.91

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 5.62 AU - 6.7 AU

Year: 4575 Days

Day: 24.5 Hours

Environment

Temp: -102 °C

Axial Tilt: 22.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 13.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.1

Radius: 10.8

Gravity: 7.22 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 12.64 AU - 14.8 AU

Year: 15206 Days

Day: 13.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 78,455,561 km

• M1: 134,488 km (0.082 R)
• M2: 692,937 km (0.117 R)
• M3: 1,071,121 km (0.076 R)
• M4: 1,468,154 km (0.082 R)
• M5: 1,964,070 km (0.068 R)
• M6: 2,681,991 km (0.081 R)
• M7: 3,651,086 km (0.044 R)
• M8: 4,279,097 km (0.11 R)
• M9: 10,223,219 km (0.113 R)
• M10: 10,864,545 km (0.061 R)
• M11: 11,532,500 km (0.079 R)
• M12: 12,099,177 km (0.076 R)
• M13: 20,883,264 km (0.034 R)
• M14: 21,915,789 km (0.07 R)
• M15: 22,590,475 km (0.084 R)
• M16: 23,578,120 km (0.094 R)
• M17: 29,299,042 km (0.092 R)
• M18: 30,473,236 km (0.114 R)
• M19: 31,556,773 km (0.11 R)
• M20: 32,416,961 km (0.112 R)
• M21: 40,156,706 km (0.074 R)
• M22: 47,266,494 km (0.07 R)
• M23: 48,880,506 km (0.036 R)
• M24: 50,031,961 km (0.104 R)
• M25: 56,780,321 km (0.113 R)
• M26: 58,419,464 km (0.064 R)
• M27: 60,842,651 km (0.071 R)
• M28: 67,697,973 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 470.3

Radius: 3.1

Gravity: 48.94 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 17.34 AU - 21.16 AU

Year: 25272 Days

Day: 23.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 78,455,561 km

• M1: 38,596 km (0.106 R)
• M2: 154,684 km (0.085 R)
• M3: 282,590 km (0.068 R)
• M4: 1,465,012 km (0.106 R)
• M5: 2,177,098 km (0.115 R)
• M6: 2,285,407 km (0.067 R)
• M7: 3,458,703 km (0.111 R)
• M8: 4,042,882 km (0.083 R)
• M9: 5,019,757 km (0.06 R)
• M10: 6,448,865 km (0.116 R)
• M11: 7,771,310 km (0.066 R)
• M12: 8,929,497 km (0.109 R)
• M13: 10,379,549 km (0.055 R)
• M14: 13,228,042 km (0.063 R)
• M15: 13,662,774 km (0.114 R)
• M16: 14,868,682 km (0.107 R)
• M17: 15,577,327 km (0.03 R)
• M18: 16,062,024 km (0.089 R)
• M19: 19,000,126 km (0.035 R)
• M20: 27,633,120 km (0.106 R)
• M21: 28,462,192 km (0.098 R)
• M22: 30,045,386 km (0.119 R)
• M23: 33,652,939 km (0.085 R)
• M24: 33,786,829 km (0.12 R)
• M25: 43,117,248 km (0.106 R)
• M26: 44,714,504 km (0.112 R)
• M27: 62,101,966 km (0.029 R)
• M28: 63,317,448 km (0.107 R)
• M29: 67,483,899 km (0.082 R)
• M30: 77,518,325 km (0.116 R)

Kuiper Belt

Range: 36.6 - 55.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 187 - 14,208 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit