🌌 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: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.48 AU - 0.74 AU

Year: 173 Days

Day: 27.3 Hours

Environment

Temp: 186 °C

Axial Tilt: 6.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.8 AU - 1.02 AU

Year: 315 Days

Day: 47.2 Hours

Environment

Temp: 156 °C

Axial Tilt: 9.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.84 AU - 1.1 AU

Year: 347 Days

Day: 17 Hours

Environment

Temp: 28 °C

Axial Tilt: 24.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 2.17 AU - 2.97 AU

Year: 1497 Days

Day: 15.2 Hours

Environment

Temp: -93 °C

Axial Tilt: 49.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.29

Radius: 0.61

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 2.91 AU - 3.31 AU

Year: 1993 Days

Day: 25.5 Hours

Environment

Temp: -106 °C

Axial Tilt: 33.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,918,921 km

• M1: 544,985 km (0.034 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 3.8 AU - 5.48 AU

Year: 3633 Days

Day: 27.4 Hours

Environment

Temp: -124 °C

Axial Tilt: 10.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.2

Radius: 8.7

Gravity: 12.08 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 4.84 AU - 5.92 AU

Year: 4535 Days

Day: 12.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,918,921 km

• M1: 109,356 km (0.081 R)
• M2: 753,824 km (0.044 R)
• M3: 1,144,573 km (0.046 R)
• M4: 1,485,357 km (0.067 R)
• M5: 2,021,366 km (0.053 R)
• M6: 2,825,455 km (0.073 R)
• M7: 3,351,890 km (0.053 R)
• M8: 5,472,889 km (0.045 R)
• M9: 7,687,236 km (0.081 R)
• M10: 8,438,367 km (0.114 R)
• M11: 9,445,011 km (0.096 R)
• M12: 10,756,237 km (0.081 R)
• M13: 11,078,919 km (0.118 R)
• M14: 12,586,118 km (0.099 R)
• M15: 15,530,503 km (0.119 R)
• M16: 16,302,428 km (0.071 R)
• M17: 16,790,117 km (0.079 R)
• M18: 22,966,116 km (0.08 R)
• M19: 23,734,001 km (0.062 R)
• M20: 25,159,071 km (0.118 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.8

Radius: 9.9

Gravity: 9.84 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 4.3 AU - 6.82 AU

Year: 4765 Days

Day: 12.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 58,918,921 km

• M1: 123,269 km (0.111 R)
• M2: 480,359 km (0.106 R)
• M3: 927,806 km (0.086 R)
• M4: 1,523,206 km (0.037 R)
• M5: 1,972,149 km (0.113 R)
• M6: 2,755,742 km (0.085 R)
• M7: 3,098,770 km (0.074 R)
• M8: 5,012,127 km (0.032 R)
• M9: 5,585,685 km (0.102 R)
• M10: 6,298,669 km (0.12 R)
• M11: 6,932,515 km (0.1 R)
• M12: 7,426,188 km (0.101 R)
• M13: 11,085,352 km (0.099 R)
• M14: 11,859,970 km (0.042 R)
• M15: 12,362,170 km (0.069 R)
• M16: 13,954,340 km (0.115 R)
• M17: 14,857,462 km (0.049 R)
• M18: 15,323,310 km (0.111 R)
• M19: 16,967,839 km (0.075 R)
• M20: 17,865,576 km (0.086 R)
• M21: 19,134,016 km (0.098 R)
• M22: 19,616,170 km (0.06 R)
• M23: 20,748,626 km (0.097 R)
• M24: 22,911,512 km (0.03 R)
• M25: 23,928,179 km (0.076 R)
• M26: 24,730,622 km (0.068 R)
• M27: 25,883,872 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 463.6

Radius: 5.6

Gravity: 14.78 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 12.42 AU - 13.1 AU

Year: 16566 Days

Day: 17.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 58,918,921 km

• M1: 78,389 km (0.057 R)
• M2: 252,820 km (0.103 R)
• M3: 722,259 km (0.085 R)
• M4: 956,529 km (0.105 R)
• M5: 1,690,606 km (0.111 R)
• M6: 2,223,174 km (0.098 R)
• M7: 2,592,830 km (0.098 R)
• M8: 3,172,971 km (0.085 R)
• M9: 3,350,095 km (0.116 R)
• M10: 3,835,989 km (0.103 R)
• M11: 4,125,610 km (0.111 R)
• M12: 4,429,743 km (0.111 R)
• M13: 7,559,031 km (0.09 R)
• M14: 7,968,331 km (0.064 R)
• M15: 9,182,766 km (0.11 R)
• M16: 9,439,626 km (0.093 R)
• M17: 10,853,774 km (0.102 R)
• M18: 12,279,442 km (0.106 R)
• M19: 13,361,783 km (0.093 R)
• M20: 15,424,438 km (0.061 R)
• M21: 15,860,965 km (0.085 R)
• M22: 16,835,296 km (0.108 R)
• M23: 17,298,002 km (0.113 R)
• M24: 18,168,512 km (0.08 R)
• M25: 21,132,494 km (0.096 R)
• M26: 24,305,615 km (0.082 R)
• M27: 24,698,608 km (0.074 R)
• M28: 34,701,320 km (0.084 R)
• M29: 36,210,464 km (0.119 R)
• M30: 38,555,410 km (0.073 R)
• M31: 40,999,690 km (0.108 R)
• M32: 43,113,957 km (0.087 R)
• M33: 45,299,731 km (0.075 R)
• M34: 47,865,036 km (0.089 R)
• M35: 48,637,559 km (0.05 R)
• M36: 52,461,879 km (0.093 R)

Kuiper Belt

Range: 30.2 - 56.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 487 - 11,923 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit