🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.51 AU - 0.75 AU

Year: 184 Days

Day: 33.9 Hours

Environment

Temp: 124 °C

Axial Tilt: 45 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 58,789,848 km

• M1: 48,171 km (0.076 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.48

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.73 AU - 1.01 AU

Year: 298 Days

Day: 38.4 Hours

Environment

Temp: 117 °C

Axial Tilt: 25.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.76 AU - 1.2 AU

Year: 356 Days

Day: 18.7 Hours

Environment

Temp: 40 °C

Axial Tilt: 17 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.17 AU - 1.41 AU

Year: 538 Days

Day: 36.9 Hours

Environment

Temp: -20 °C

Axial Tilt: 32.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.09

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.58 AU - 2.02 AU

Year: 887 Days

Day: 23.1 Hours

Environment

Temp: -48 °C

Axial Tilt: 170.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.7

Radius: 12.7

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 5.12 AU - 6 AU

Year: 4813 Days

Day: 7.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,789,848 km

• M1: 157,975 km (0.074 R)
• M2: 631,303 km (0.097 R)
• M3: 1,524,103 km (0.076 R)
• M4: 2,524,763 km (0.098 R)
• M5: 3,345,756 km (0.101 R)
• M6: 4,203,551 km (0.116 R)
• M7: 6,151,764 km (0.096 R)
• M8: 7,244,576 km (0.051 R)
• M9: 9,046,333 km (0.11 R)
• M10: 9,892,309 km (0.076 R)
• M11: 10,664,683 km (0.101 R)
• M12: 11,216,100 km (0.045 R)
• M13: 14,162,580 km (0.086 R)
• M14: 16,281,185 km (0.085 R)
• M15: 17,013,167 km (0.051 R)
• M16: 17,825,783 km (0.106 R)
• M17: 22,282,453 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.1

Radius: 8.6

Gravity: 13.4 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 6.92 AU - 8.8 AU

Year: 8089 Days

Day: 6.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 58,789,848 km

• M1: 107,112 km (0.111 R)
• M2: 409,150 km (0.112 R)
• M3: 867,368 km (0.046 R)
• M4: 1,148,912 km (0.084 R)
• M5: 1,952,701 km (0.102 R)
• M6: 3,343,512 km (0.102 R)
• M7: 3,866,656 km (0.082 R)
• M8: 5,235,626 km (0.061 R)
• M9: 5,768,195 km (0.1 R)
• M10: 6,263,214 km (0.105 R)
• M11: 7,137,763 km (0.09 R)
• M12: 7,750,666 km (0.11 R)
• M13: 8,353,844 km (0.07 R)
• M14: 8,941,614 km (0.117 R)
• M15: 9,412,249 km (0.063 R)
• M16: 10,505,959 km (0.037 R)
• M17: 10,977,043 km (0.118 R)
• M18: 11,737,599 km (0.069 R)
• M19: 14,742,721 km (0.099 R)
• M20: 15,939,653 km (0.048 R)
• M21: 20,558,787 km (0.103 R)
• M22: 22,823,100 km (0.034 R)
• M23: 23,436,152 km (0.098 R)
• M24: 24,878,874 km (0.028 R)
• M25: 26,188,902 km (0.102 R)
• M26: 29,561,138 km (0.077 R)
• M27: 31,458,487 km (0.078 R)
• M28: 33,212,074 km (0.073 R)
• M29: 34,226,646 km (0.118 R)
• M30: 35,261,565 km (0.092 R)
• M31: 41,136,722 km (0.119 R)
• M32: 42,701,216 km (0.038 R)
• M33: 43,364,683 km (0.071 R)
• M34: 45,396,371 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 257.8

Radius: 6.7

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 14.87 AU - 15.89 AU

Year: 22142 Days

Day: 16.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 58,789,848 km

• M1: 83,476 km (0.065 R)
• M2: 546,032 km (0.081 R)
• M3: 1,575,116 km (0.09 R)
• M4: 1,815,370 km (0.094 R)
• M5: 2,117,259 km (0.077 R)
• M6: 2,390,724 km (0.114 R)
• M7: 3,105,502 km (0.105 R)
• M8: 3,868,751 km (0.115 R)
• M9: 4,432,735 km (0.096 R)
• M10: 8,872,949 km (0.101 R)
• M11: 9,174,239 km (0.077 R)
• M12: 10,784,660 km (0.12 R)
• M13: 13,540,103 km (0.095 R)
• M14: 13,872,659 km (0.077 R)
• M15: 14,832,778 km (0.096 R)
• M16: 20,566,865 km (0.115 R)
• M17: 24,652,532 km (0.111 R)
• M18: 25,048,817 km (0.117 R)
• M19: 25,651,098 km (0.1 R)
• M20: 26,263,103 km (0.048 R)
• M21: 28,373,480 km (0.086 R)
• M22: 35,127,974 km (0.033 R)
• M23: 37,816,098 km (0.091 R)
• M24: 38,608,667 km (0.106 R)
• M25: 39,143,031 km (0.114 R)
• M26: 41,469,577 km (0.096 R)
• M27: 43,023,151 km (0.114 R)
• M28: 43,741,969 km (0.07 R)
• M29: 46,096,190 km (0.119 R)
• M30: 47,152,202 km (0.063 R)
• M31: 47,916,198 km (0.06 R)
• M32: 54,663,660 km (0.083 R)
• M33: 55,337,449 km (0.104 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 181 - 19,736 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit