🌌 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: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.42 AU - 0.62 AU

Year: 141 Days

Day: 16.4 Hours

Environment

Temp: 149 °C

Axial Tilt: 15 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.51

Radius: 0.76

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.47 AU - 0.59 AU

Year: 145 Days

Day: 32 Hours

Environment

Temp: 192 °C

Axial Tilt: 17.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.67

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.63 AU - 0.99 AU

Year: 273 Days

Day: 35.5 Hours

Environment

Temp: 151 °C

Axial Tilt: 24.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.99

Radius: 1.32

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.65 AU - 3.89 AU

Year: 2216 Days

Day: 27.1 Hours

Environment

Temp: -124 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 91,876,737 km

• M1: 40,242 km (0.042 R)
• M2: 161,267 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 246.9

Radius: 12.1

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 4.5 AU - 5.44 AU

Year: 4152 Days

Day: 5.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 91,876,737 km

• M1: 150,795 km (0.095 R)
• M2: 537,954 km (0.066 R)
• M3: 944,262 km (0.087 R)
• M4: 1,844,093 km (0.107 R)
• M5: 2,434,855 km (0.101 R)
• M6: 3,216,205 km (0.117 R)
• M7: 3,749,820 km (0.105 R)
• M8: 4,158,073 km (0.117 R)
• M9: 5,370,863 km (0.051 R)
• M10: 5,790,036 km (0.078 R)
• M11: 6,257,529 km (0.11 R)
• M12: 6,948,821 km (0.077 R)
• M13: 7,813,796 km (0.064 R)
• M14: 8,418,471 km (0.114 R)
• M15: 9,088,669 km (0.062 R)
• M16: 10,197,189 km (0.028 R)
• M17: 10,765,063 km (0.104 R)
• M18: 14,018,816 km (0.11 R)
• M19: 16,452,475 km (0.104 R)
• M20: 17,076,148 km (0.091 R)
• M21: 17,500,557 km (0.094 R)
• M22: 18,041,054 km (0.075 R)
• M23: 18,425,970 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.1

Radius: 13.8

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 6.17 AU - 6.83 AU

Year: 6210 Days

Day: 7.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 91,876,737 km

• M1: 171,589 km (0.11 R)
• M2: 617,540 km (0.073 R)
• M3: 1,281,755 km (0.108 R)
• M4: 1,898,098 km (0.095 R)
• M5: 2,369,481 km (0.095 R)
• M6: 3,163,397 km (0.103 R)
• M7: 6,569,590 km (0.095 R)
• M8: 7,589,549 km (0.075 R)
• M9: 10,081,999 km (0.107 R)
• M10: 13,810,726 km (0.112 R)
• M11: 15,112,526 km (0.071 R)
• M12: 15,605,751 km (0.093 R)
• M13: 17,350,211 km (0.099 R)
• M14: 17,891,157 km (0.031 R)
• M15: 23,772,897 km (0.106 R)
• M16: 25,639,878 km (0.106 R)
• M17: 31,926,579 km (0.115 R)
• M18: 32,433,267 km (0.113 R)
• M19: 33,985,644 km (0.11 R)
• M20: 35,370,771 km (0.084 R)
• M21: 36,241,580 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 767.5

Radius: 5

Gravity: 30.7 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 15.34 AU - 17.62 AU

Year: 25071 Days

Day: 16 Hours

Environment

Temp: -188 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 91,876,737 km

• M1: 65,524 km (0.116 R)
• M2: 554,260 km (0.072 R)
• M3: 1,514,080 km (0.112 R)
• M4: 1,790,238 km (0.091 R)
• M5: 2,491,852 km (0.073 R)
• M6: 2,986,871 km (0.095 R)
• M7: 3,331,844 km (0.089 R)
• M8: 4,417,625 km (0.084 R)
• M9: 5,383,878 km (0.057 R)
• M10: 5,592,716 km (0.079 R)
• M11: 6,577,220 km (0.111 R)
• M12: 8,484,742 km (0.106 R)
• M13: 9,057,403 km (0.114 R)
• M14: 9,413,296 km (0.055 R)
• M15: 9,716,830 km (0.118 R)
• M16: 11,538,933 km (0.098 R)
• M17: 12,823,679 km (0.115 R)
• M18: 13,121,528 km (0.081 R)
• M19: 14,043,051 km (0.078 R)
• M20: 19,305,156 km (0.114 R)
• M21: 19,696,504 km (0.085 R)
• M22: 20,698,062 km (0.114 R)
• M23: 21,315,004 km (0.106 R)
• M24: 22,802,156 km (0.077 R)
• M25: 24,018,237 km (0.056 R)
• M26: 24,357,226 km (0.116 R)
• M27: 26,219,271 km (0.106 R)
• M28: 27,063,003 km (0.06 R)
• M29: 29,059,237 km (0.094 R)
• M30: 29,573,105 km (0.07 R)
• M31: 30,224,155 km (0.038 R)
• M32: 31,689,766 km (0.063 R)
• M33: 35,779,622 km (0.081 R)
• M34: 38,796,413 km (0.12 R)
• M35: 42,966,004 km (0.108 R)
• M36: 43,465,661 km (0.119 R)
• M37: 44,987,371 km (0.049 R)
• M38: 50,500,800 km (0.067 R)
• M39: 57,448,724 km (0.115 R)
• M40: 58,665,403 km (0.031 R)
• M41: 75,594,048 km (0.059 R)
• M42: 85,949,362 km (0.084 R)
• M43: 91,601,619 km (0.11 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 540 - 14,714 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit