🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.58 AU - 0.64 AU

Year: 179 Days

Day: 43.3 Hours

Environment

Temp: 193 °C

Axial Tilt: 5.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.76 AU - 1.08 AU

Year: 331 Days

Day: 31.8 Hours

Environment

Temp: 44 °C

Axial Tilt: 26.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 40,669,077 km

• M1: 21,991 km (0.072 R)
• M2: 308,770 km (0.052 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.54 AU - 1.6 AU

Year: 737 Days

Day: 45.1 Hours

Environment

Temp: -48 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.38 AU - 1.82 AU

Year: 758 Days

Day: 36.8 Hours

Environment

Temp: -50 °C

Axial Tilt: 16 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.36

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 2.24 AU - 2.44 AU

Year: 1341 Days

Day: 47.6 Hours

Environment

Temp: -82 °C

Axial Tilt: 19 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.01 AU - 2.87 AU

Year: 1428 Days

Day: 19.9 Hours

Environment

Temp: -87 °C

Axial Tilt: 43.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 2.53 AU - 2.55 AU

Year: 1517 Days

Day: 46.6 Hours

Environment

Temp: -94 °C

Axial Tilt: 34.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 6.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 827

Radius: 13.2

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 6.54 AU - 6.88 AU

Year: 6513 Days

Day: 10.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,669,077 km

• M1: 171,589 km (0.082 R)
• M2: 604,974 km (0.06 R)
• M3: 1,124,677 km (0.06 R)
• M4: 1,745,957 km (0.089 R)
• M5: 3,242,833 km (0.101 R)
• M6: 3,856,932 km (0.088 R)
• M7: 4,966,201 km (0.112 R)
• M8: 5,502,658 km (0.118 R)
• M9: 6,011,740 km (0.073 R)
• M10: 10,846,145 km (0.119 R)
• M11: 13,150,401 km (0.059 R)
• M12: 19,642,799 km (0.048 R)
• M13: 20,383,308 km (0.115 R)
• M14: 21,684,959 km (0.088 R)
• M15: 23,533,091 km (0.071 R)
• M16: 30,485,652 km (0.102 R)
• M17: 36,993,010 km (0.11 R)
• M18: 37,554,900 km (0.065 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529.9

Radius: 10.1

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 8.46 AU - 11.48 AU

Year: 11797 Days

Day: 7.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 40,669,077 km

• M1: 133,292 km (0.092 R)
• M2: 523,593 km (0.113 R)
• M3: 909,705 km (0.097 R)
• M4: 1,613,862 km (0.059 R)
• M5: 2,281,068 km (0.095 R)
• M6: 3,099,817 km (0.101 R)
• M7: 3,678,761 km (0.081 R)
• M8: 4,590,859 km (0.098 R)
• M9: 5,278,262 km (0.117 R)
• M10: 5,715,835 km (0.061 R)
• M11: 7,297,534 km (0.03 R)
• M12: 9,538,659 km (0.114 R)
• M13: 10,815,926 km (0.112 R)
• M14: 11,302,718 km (0.045 R)
• M15: 14,535,827 km (0.103 R)
• M16: 15,330,042 km (0.062 R)
• M17: 15,875,476 km (0.083 R)
• M18: 19,187,722 km (0.11 R)
• M19: 19,821,419 km (0.094 R)
• M20: 22,583,444 km (0.085 R)
• M21: 24,284,970 km (0.053 R)
• M22: 27,242,071 km (0.057 R)
• M23: 30,006,341 km (0.081 R)
• M24: 32,281,725 km (0.074 R)
• M25: 33,291,211 km (0.079 R)
• M26: 40,050,492 km (0.076 R)
• M27: 40,695,109 km (0.065 R)
• M28: 45,542,529 km (0.102 R)
• M29: 45,963,048 km (0.092 R)
• M30: 46,811,867 km (0.116 R)
• M31: 47,240,165 km (0.12 R)
• M32: 49,126,445 km (0.104 R)

Planet 10 - Gas Giant

Semi-Major Axis: 10.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.4

Radius: 14.1

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 8.77 AU - 11.99 AU

Year: 12532 Days

Day: 10.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,669,077 km

• M1: 175,329 km (0.083 R)
• M2: 630,405 km (0.085 R)
• M3: 1,152,801 km (0.12 R)
• M4: 1,630,617 km (0.047 R)
• M5: 2,825,754 km (0.103 R)
• M6: 5,771,187 km (0.09 R)
• M7: 6,341,454 km (0.088 R)
• M8: 9,142,524 km (0.025 R)
• M9: 10,349,031 km (0.114 R)
• M10: 12,030,062 km (0.112 R)
• M11: 13,710,645 km (0.062 R)
• M12: 16,385,604 km (0.091 R)
• M13: 20,830,456 km (0.07 R)
• M14: 21,775,167 km (0.045 R)
• M15: 22,913,158 km (0.099 R)
• M16: 24,520,587 km (0.107 R)
• M17: 25,043,581 km (0.112 R)
• M18: 26,292,723 km (0.061 R)
• M19: 30,993,088 km (0.116 R)
• M20: 36,677,508 km (0.075 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 362 - 12,027 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit