🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.51 AU - 0.57 AU

Year: 153 Days

Day: 31.3 Hours

Environment

Temp: 140 °C

Axial Tilt: 6.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.53 AU - 0.67 AU

Year: 179 Days

Day: 15.4 Hours

Environment

Temp: 151 °C

Axial Tilt: 4.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.63 AU - 0.83 AU

Year: 240 Days

Day: 16.9 Hours

Environment

Temp: 119 °C

Axial Tilt: 27.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.04

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.34 AU - 1.36 AU

Year: 604 Days

Day: 45.2 Hours

Environment

Temp: -49 °C

Axial Tilt: 29.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 28,664,430 km

• M1: 550,819 km (0.068 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.58

Radius: 1.67

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.9 AU - 2.28 AU

Year: 1163 Days

Day: 43.2 Hours

Environment

Temp: -88 °C

Axial Tilt: 22.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 28,664,430 km

• M1: 49,666 km (0.102 R)

Asteroid Belt

Center: 3.68 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261

Radius: 12.9

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 4.34 AU - 6.18 AU

Year: 4645 Days

Day: 11.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,664,430 km

• M1: 160,519 km (0.116 R)
• M2: 980,464 km (0.101 R)
• M3: 1,387,221 km (0.102 R)
• M4: 2,683,935 km (0.081 R)
• M5: 3,170,128 km (0.114 R)
• M6: 4,854,451 km (0.11 R)
• M7: 6,436,149 km (0.116 R)
• M8: 8,711,682 km (0.059 R)
• M9: 15,847,501 km (0.102 R)
• M10: 16,316,640 km (0.113 R)
• M11: 17,502,203 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.9

Radius: 14.7

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 5.01 AU - 6.23 AU

Year: 5129 Days

Day: 13.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 28,664,430 km

• M1: 182,958 km (0.114 R)
• M2: 839,094 km (0.092 R)
• M3: 1,554,023 km (0.033 R)
• M4: 2,405,833 km (0.051 R)
• M5: 3,083,063 km (0.12 R)
• M6: 4,071,306 km (0.065 R)
• M7: 4,823,634 km (0.1 R)
• M8: 7,722,392 km (0.106 R)
• M9: 9,840,698 km (0.099 R)
• M10: 10,733,049 km (0.079 R)
• M11: 12,122,065 km (0.119 R)
• M12: 12,730,779 km (0.051 R)
• M13: 15,965,534 km (0.111 R)
• M14: 17,261,350 km (0.066 R)
• M15: 18,692,852 km (0.084 R)
• M16: 23,697,051 km (0.088 R)
• M17: 24,811,555 km (0.032 R)
• M18: 25,794,413 km (0.106 R)
• M19: 27,576,722 km (0.083 R)
• M20: 28,100,763 km (0.03 R)
• M21: 29,987,342 km (0.104 R)
• M22: 31,102,445 km (0.09 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.3

Radius: 8.1

Gravity: 10.02 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 5.61 AU - 7.29 AU

Year: 6307 Days

Day: 5.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 28,664,430 km

• M1: 100,829 km (0.079 R)
• M2: 403,765 km (0.111 R)
• M3: 717,172 km (0.09 R)
• M4: 999,912 km (0.04 R)
• M5: 2,669,275 km (0.065 R)
• M6: 3,135,272 km (0.111 R)
• M7: 3,631,638 km (0.104 R)
• M8: 5,529,586 km (0.058 R)
• M9: 5,963,570 km (0.079 R)
• M10: 6,254,537 km (0.12 R)
• M11: 6,760,627 km (0.119 R)
• M12: 8,483,695 km (0.085 R)
• M13: 8,810,866 km (0.093 R)
• M14: 9,621,537 km (0.118 R)
• M15: 11,001,727 km (0.105 R)
• M16: 11,341,763 km (0.111 R)
• M17: 12,614,242 km (0.071 R)
• M18: 13,754,327 km (0.113 R)
• M19: 15,080,363 km (0.094 R)
• M20: 15,928,134 km (0.049 R)
• M21: 16,426,594 km (0.1 R)
• M22: 19,356,169 km (0.041 R)
• M23: 19,995,551 km (0.069 R)
• M24: 20,648,994 km (0.107 R)
• M25: 21,998,367 km (0.106 R)
• M26: 22,694,745 km (0.027 R)
• M27: 23,326,048 km (0.111 R)
• M28: 23,968,870 km (0.085 R)
• M29: 28,804,172 km (0.099 R)
• M30: 29,544,083 km (0.101 R)
• M31: 30,012,923 km (0.099 R)

Planet 9 - Gas Giant

Semi-Major Axis: 7.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.9

Radius: 14.1

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 5.94 AU - 8.88 AU

Year: 7766 Days

Day: 5.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 28,664,430 km

• M1: 175,777 km (0.069 R)
• M2: 877,392 km (0.074 R)
• M3: 1,852,321 km (0.064 R)
• M4: 2,719,839 km (0.097 R)
• M5: 3,190,175 km (0.039 R)
• M6: 3,630,740 km (0.102 R)
• M7: 4,464,898 km (0.08 R)
• M8: 5,648,068 km (0.099 R)
• M9: 6,515,436 km (0.116 R)
• M10: 8,440,461 km (0.114 R)
• M11: 9,332,214 km (0.105 R)
• M12: 10,115,509 km (0.114 R)
• M13: 15,654,520 km (0.061 R)
• M14: 20,124,205 km (0.112 R)
• M15: 21,573,210 km (0.095 R)
• M16: 23,537,131 km (0.097 R)
• M17: 27,236,088 km (0.111 R)
• M18: 28,408,785 km (0.066 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 543 - 17,216 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit