🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.45

Radius: 1.16

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.53 AU - 0.57 AU

Year: 155 Days

Day: 29.6 Hours

Environment

Temp: 141 °C

Axial Tilt: 22.2 °

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: 1.31

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.45 AU - 0.67 AU

Year: 160 Days

Day: 20.9 Hours

Environment

Temp: 211 °C

Axial Tilt: 35.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 107,510,232 km

• M1: 26,180 km (0.061 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.65 AU - 0.91 AU

Year: 262 Days

Day: 30.1 Hours

Environment

Temp: 158 °C

Axial Tilt: 10.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.74 AU - 1 AU

Year: 309 Days

Day: 22.6 Hours

Environment

Temp: 43 °C

Axial Tilt: 11.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.74

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.32 AU - 1.52 AU

Year: 644 Days

Day: 39.9 Hours

Environment

Temp: -41 °C

Axial Tilt: 16.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 107,510,232 km

• M1: 279,150 km (0.061 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.39 AU - 2.27 AU

Year: 943 Days

Day: 16.8 Hours

Environment

Temp: -62 °C

Axial Tilt: 42.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 7.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.5

Radius: 9.9

Gravity: 9.98 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 6.6 AU - 8.72 AU

Year: 8073 Days

Day: 6.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 107,510,232 km

• M1: 123,119 km (0.096 R)
• M2: 531,222 km (0.083 R)
• M3: 1,001,707 km (0.084 R)
• M4: 1,582,147 km (0.101 R)
• M5: 2,766,364 km (0.087 R)
• M6: 3,133,178 km (0.044 R)
• M7: 4,018,797 km (0.087 R)
• M8: 5,253,428 km (0.04 R)
• M9: 7,514,600 km (0.052 R)
• M10: 7,889,642 km (0.099 R)
• M11: 8,277,250 km (0.045 R)
• M12: 10,823,406 km (0.094 R)
• M13: 11,141,152 km (0.115 R)
• M14: 11,519,784 km (0.064 R)
• M15: 11,851,143 km (0.027 R)
• M16: 12,360,225 km (0.045 R)
• M17: 12,766,233 km (0.111 R)
• M18: 14,736,437 km (0.109 R)
• M19: 19,425,433 km (0.059 R)
• M20: 21,852,359 km (0.06 R)
• M21: 24,113,531 km (0.101 R)
• M22: 24,656,571 km (0.045 R)
• M23: 27,791,096 km (0.081 R)
• M24: 28,993,863 km (0.12 R)
• M25: 33,814,355 km (0.115 R)
• M26: 34,153,493 km (0.105 R)
• M27: 36,591,639 km (0.047 R)
• M28: 38,771,879 km (0.098 R)
• M29: 39,642,688 km (0.036 R)
• M30: 45,143,551 km (0.044 R)
• M31: 45,692,575 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 153

Radius: 3.6

Gravity: 11.81 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 11.48 AU - 14.32 AU

Year: 17643 Days

Day: 20.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 107,510,232 km

• M1: 47,722 km (0.112 R)
• M2: 276,008 km (0.105 R)
• M3: 540,946 km (0.117 R)
• M4: 799,002 km (0.081 R)
• M5: 1,090,120 km (0.079 R)
• M6: 2,124,439 km (0.029 R)
• M7: 2,699,045 km (0.096 R)
• M8: 2,968,321 km (0.114 R)
• M9: 3,347,252 km (0.105 R)
• M10: 3,488,473 km (0.087 R)
• M11: 4,146,853 km (0.078 R)
• M12: 5,004,797 km (0.099 R)
• M13: 6,798,774 km (0.118 R)
• M14: 8,025,178 km (0.082 R)
• M15: 11,586,953 km (0.058 R)
• M16: 12,689,041 km (0.029 R)
• M17: 14,040,508 km (0.093 R)
• M18: 16,614,489 km (0.077 R)
• M19: 22,923,779 km (0.113 R)
• M20: 23,604,898 km (0.099 R)
• M21: 24,299,481 km (0.05 R)
• M22: 25,097,137 km (0.08 R)
• M23: 29,051,009 km (0.059 R)
• M24: 29,447,892 km (0.119 R)
• M25: 31,905,486 km (0.042 R)
• M26: 32,647,192 km (0.103 R)
• M27: 34,165,012 km (0.087 R)
• M28: 37,574,647 km (0.07 R)
• M29: 38,759,612 km (0.089 R)
• M30: 41,705,044 km (0.033 R)
• M31: 41,830,856 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 937.2

Radius: 6.2

Gravity: 24.38 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 13.71 AU - 21.99 AU

Year: 28718 Days

Day: 20.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 107,510,232 km

• M1: 78,389 km (0.065 R)
• M2: 302,337 km (0.12 R)
• M3: 757,264 km (0.113 R)
• M4: 1,002,605 km (0.083 R)
• M5: 1,317,209 km (0.1 R)
• M6: 1,562,251 km (0.103 R)
• M7: 4,044,229 km (0.08 R)
• M8: 4,527,131 km (0.06 R)
• M9: 5,215,879 km (0.062 R)
• M10: 7,645,199 km (0.109 R)
• M11: 9,042,742 km (0.069 R)
• M12: 18,048,983 km (0.042 R)
• M13: 20,822,528 km (0.075 R)
• M14: 28,372,283 km (0.104 R)
• M15: 31,245,310 km (0.076 R)
• M16: 32,679,206 km (0.101 R)
• M17: 46,129,551 km (0.083 R)
• M18: 68,649,266 km (0.118 R)
• M19: 75,814,107 km (0.111 R)
• M20: 76,582,591 km (0.12 R)
• M21: 85,935,450 km (0.098 R)
• M22: 87,050,403 km (0.076 R)
• M23: 87,892,938 km (0.091 R)
• M24: 100,883,119 km (0.118 R)
• M25: 105,269,927 km (0.084 R)
• M26: 106,226,157 km (0.047 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 471 - 13,215 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit