🌌 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: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.08

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.5 AU - 0.52 AU

Year: 133 Days

Day: 24.6 Hours

Environment

Temp: 202 °C

Axial Tilt: 26.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 60,680,420 km

• M1: 38,297 km (0.05 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.8 AU - 1 AU

Year: 312 Days

Day: 17.2 Hours

Environment

Temp: 133 °C

Axial Tilt: 45.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 60,680,420 km

• M1: 51,013 km (0.087 R)
• M2: 172,636 km (0.072 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.71

Radius: 0.87

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.13 AU - 1.43 AU

Year: 529 Days

Day: 29 Hours

Environment

Temp: 8 °C

Axial Tilt: 18.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.6

Radius: 11.2

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 4.44 AU - 6.88 AU

Year: 4918 Days

Day: 13.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,680,420 km

• M1: 139,724 km (0.118 R)
• M2: 852,558 km (0.106 R)
• M3: 1,229,096 km (0.082 R)
• M4: 2,630,828 km (0.088 R)
• M5: 3,137,367 km (0.094 R)
• M6: 3,538,289 km (0.11 R)
• M7: 3,996,358 km (0.062 R)
• M8: 4,796,257 km (0.105 R)
• M9: 5,527,342 km (0.074 R)
• M10: 9,214,630 km (0.104 R)
• M11: 9,789,385 km (0.074 R)
• M12: 13,965,709 km (0.08 R)
• M13: 15,114,322 km (0.07 R)
• M14: 18,613,266 km (0.046 R)
• M15: 19,134,914 km (0.055 R)
• M16: 20,275,598 km (0.097 R)
• M17: 21,107,811 km (0.072 R)
• M18: 21,675,086 km (0.117 R)
• M19: 27,164,879 km (0.109 R)
• M20: 28,176,161 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.6

Radius: 13.5

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 5.83 AU - 6.37 AU

Year: 5503 Days

Day: 7.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 60,680,420 km

• M1: 167,849 km (0.1 R)
• M2: 623,075 km (0.112 R)
• M3: 1,047,933 km (0.053 R)
• M4: 1,553,125 km (0.045 R)
• M5: 2,318,468 km (0.102 R)
• M6: 2,883,050 km (0.059 R)
• M7: 3,408,587 km (0.109 R)
• M8: 5,009,285 km (0.098 R)
• M9: 6,056,320 km (0.09 R)
• M10: 6,615,068 km (0.078 R)
• M11: 8,341,876 km (0.108 R)
• M12: 9,634,552 km (0.104 R)
• M13: 11,396,815 km (0.107 R)
• M14: 12,773,414 km (0.114 R)
• M15: 13,751,036 km (0.041 R)
• M16: 17,634,298 km (0.064 R)
• M17: 18,166,268 km (0.095 R)
• M18: 21,062,483 km (0.119 R)
• M19: 29,023,782 km (0.069 R)
• M20: 30,425,813 km (0.056 R)
• M21: 31,677,050 km (0.03 R)
• M22: 32,662,601 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565.3

Radius: 14.2

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 7.47 AU - 11.51 AU

Year: 10678 Days

Day: 12.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,680,420 km

• M1: 180,265 km (0.068 R)
• M2: 635,193 km (0.117 R)
• M3: 1,107,922 km (0.068 R)
• M4: 2,489,608 km (0.074 R)
• M5: 3,354,732 km (0.104 R)
• M6: 5,003,899 km (0.116 R)
• M7: 5,817,712 km (0.103 R)
• M8: 7,793,301 km (0.086 R)
• M9: 11,382,902 km (0.078 R)
• M10: 15,020,225 km (0.12 R)
• M11: 16,226,881 km (0.093 R)
• M12: 20,076,034 km (0.116 R)
• M13: 24,315,040 km (0.09 R)
• M14: 24,952,626 km (0.1 R)
• M15: 27,321,358 km (0.061 R)
• M16: 32,501,933 km (0.114 R)
• M17: 42,357,740 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.8

Radius: 11.6

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 9.54 AU - 14.76 AU

Year: 15469 Days

Day: 9.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 60,680,420 km

• M1: 144,512 km (0.109 R)
• M2: 621,280 km (0.071 R)
• M3: 1,067,680 km (0.049 R)
• M4: 1,811,630 km (0.069 R)
• M5: 2,544,660 km (0.063 R)
• M6: 3,063,764 km (0.046 R)
• M7: 4,408,799 km (0.042 R)
• M8: 4,857,293 km (0.069 R)
• M9: 5,407,215 km (0.058 R)
• M10: 6,591,133 km (0.053 R)
• M11: 7,093,333 km (0.045 R)
• M12: 8,607,113 km (0.075 R)
• M13: 9,362,284 km (0.096 R)
• M14: 10,661,840 km (0.07 R)
• M15: 11,296,285 km (0.116 R)
• M16: 11,773,203 km (0.066 R)
• M17: 13,089,814 km (0.118 R)
• M18: 13,750,139 km (0.045 R)
• M19: 15,281,123 km (0.115 R)
• M20: 17,311,914 km (0.079 R)
• M21: 27,888,783 km (0.062 R)
• M22: 30,676,240 km (0.039 R)
• M23: 31,723,575 km (0.11 R)
• M24: 33,157,022 km (0.1 R)
• M25: 33,766,783 km (0.092 R)
• M26: 34,384,023 km (0.118 R)
• M27: 39,052,973 km (0.048 R)
• M28: 45,014,747 km (0.101 R)
• M29: 46,518,655 km (0.06 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 389 - 12,046 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit