🌌 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: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.96

Radius: 1.54

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.49 AU - 0.61 AU

Year: 259 Days

Day: 44.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 3.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 14,199,099 km

• M1: 330,611 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.58

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.56 AU - 0.6 AU

Year: 281 Days

Day: 29.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 19.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.8

Radius: 9

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.74 AU - 0.78 AU

Year: 421 Days

Day: 8 Hours

Environment

Temp: -149 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 14,199,099 km

• M1: 112,647 km (0.043 R)
• M2: 415,732 km (0.1 R)
• M3: 700,118 km (0.068 R)
• M4: 1,137,243 km (0.091 R)
• M5: 1,520,513 km (0.08 R)
• M6: 1,813,425 km (0.074 R)
• M7: 2,410,321 km (0.07 R)
• M8: 2,851,036 km (0.061 R)
• M9: 3,216,205 km (0.079 R)
• M10: 3,499,244 km (0.051 R)
• M11: 3,992,019 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.2

Radius: 14.7

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.65 AU - 1.08 AU

Year: 507 Days

Day: 6.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 14,199,099 km

• M1: 182,958 km (0.099 R)
• M2: 711,338 km (0.076 R)
• M3: 1,219,372 km (0.054 R)
• M4: 1,772,136 km (0.101 R)
• M5: 2,330,735 km (0.12 R)
• M6: 2,962,337 km (0.062 R)
• M7: 3,429,232 km (0.067 R)
• M8: 4,096,738 km (0.087 R)
• M9: 6,291,189 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.3

Radius: 14.9

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.29 AU - 1.37 AU

Year: 975 Days

Day: 10.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 14,199,099 km

• M1: 185,352 km (0.075 R)
• M2: 652,546 km (0.074 R)
• M3: 1,174,792 km (0.105 R)
• M4: 1,835,117 km (0.092 R)
• M5: 2,393,865 km (0.083 R)
• M6: 3,983,343 km (0.092 R)
• M7: 4,573,656 km (0.103 R)
• M8: 5,222,162 km (0.087 R)
• M9: 6,299,716 km (0.069 R)
• M10: 7,104,702 km (0.114 R)
• M11: 8,504,041 km (0.116 R)
• M12: 9,000,556 km (0.042 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.9

Radius: 14.3

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.23 AU - 1.85 AU

Year: 1215 Days

Day: 6 Hours

Environment

Temp: -181 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 14,199,099 km

• M1: 178,021 km (0.091 R)
• M2: 679,474 km (0.115 R)
• M3: 1,137,991 km (0.086 R)
• M4: 1,769,444 km (0.047 R)
• M5: 2,618,112 km (0.111 R)
• M6: 3,311,050 km (0.033 R)
• M7: 3,833,894 km (0.109 R)
• M8: 4,569,766 km (0.067 R)
• M9: 5,539,160 km (0.111 R)
• M10: 6,040,762 km (0.115 R)
• M11: 6,687,474 km (0.106 R)
• M12: 7,355,578 km (0.115 R)
• M13: 8,041,484 km (0.089 R)
• M14: 8,714,375 km (0.093 R)
• M15: 9,250,684 km (0.091 R)
• M16: 9,808,983 km (0.081 R)
• M17: 10,483,520 km (0.088 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.5

Radius: 11.5

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.48 AU - 1.64 AU

Year: 1239 Days

Day: 6.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 14,199,099 km

• M1: 143,016 km (0.113 R)
• M2: 523,293 km (0.078 R)
• M3: 950,395 km (0.082 R)
• M4: 1,381,536 km (0.069 R)
• M5: 1,805,945 km (0.11 R)
• M6: 2,274,785 km (0.12 R)
• M7: 2,849,241 km (0.112 R)
• M8: 4,079,235 km (0.119 R)
• M9: 4,646,360 km (0.114 R)
• M10: 5,040,850 km (0.1 R)
• M11: 6,339,659 km (0.061 R)
• M12: 6,849,039 km (0.049 R)
• M13: 8,595,894 km (0.096 R)
• M14: 8,972,731 km (0.065 R)
• M15: 9,587,279 km (0.082 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.1

Radius: 9.7

Gravity: 8.89 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.31 AU - 2.18 AU

Year: 1459 Days

Day: 9.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 14,199,099 km

• M1: 120,576 km (0.107 R)
• M2: 423,063 km (0.073 R)
• M3: 845,378 km (0.105 R)
• M4: 1,163,722 km (0.08 R)
• M5: 1,591,721 km (0.078 R)
• M6: 1,933,702 km (0.079 R)
• M7: 2,853,280 km (0.071 R)
• M8: 3,222,787 km (0.065 R)
• M9: 5,011,828 km (0.091 R)
• M10: 5,665,122 km (0.112 R)
• M11: 6,300,763 km (0.075 R)
• M12: 7,248,017 km (0.088 R)
• M13: 7,968,630 km (0.061 R)
• M14: 8,858,438 km (0.074 R)
• M15: 9,846,083 km (0.093 R)
• M16: 11,665,343 km (0.12 R)
• M17: 12,498,603 km (0.106 R)
• M18: 12,811,412 km (0.105 R)
• M19: 14,072,821 km (0.039 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 226 - 18,806 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit