🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.72

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.43 AU - 0.63 AU

Year: 142 Days

Day: 40.6 Hours

Environment

Temp: 155 °C

Axial Tilt: 27.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 74,474,516 km

• M1: 36,801 km (0.039 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.52 AU - 0.64 AU

Year: 163 Days

Day: 16.3 Hours

Environment

Temp: 150 °C

Axial Tilt: 29.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 74,474,516 km

• M1: 42,635 km (0.076 R)
• M2: 108,159 km (0.116 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.23

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.21 AU - 1.39 AU

Year: 547 Days

Day: 33.8 Hours

Environment

Temp: 1 °C

Axial Tilt: 2.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 74,474,516 km

• M1: 37,549 km (0.05 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.04

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.38 AU - 3.58 AU

Year: 1898 Days

Day: 25.8 Hours

Environment

Temp: -101 °C

Axial Tilt: 35.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,474,516 km

• M1: 138,528 km (0.029 R)

Asteroid Belt

Center: 5.2 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538.5

Radius: 10.5

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 6.3 AU - 8.52 AU

Year: 7442 Days

Day: 10.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 74,474,516 km

• M1: 132,095 km (0.106 R)
• M2: 480,359 km (0.083 R)
• M3: 867,069 km (0.079 R)
• M4: 1,396,347 km (0.076 R)
• M5: 2,054,876 km (0.068 R)
• M6: 2,535,385 km (0.038 R)
• M7: 2,870,484 km (0.075 R)
• M8: 3,256,446 km (0.082 R)
• M9: 4,521,147 km (0.077 R)
• M10: 5,046,385 km (0.115 R)
• M11: 5,550,380 km (0.092 R)
• M12: 6,453,802 km (0.073 R)
• M13: 7,084,506 km (0.077 R)
• M14: 7,717,455 km (0.087 R)
• M15: 8,306,871 km (0.064 R)
• M16: 11,018,033 km (0.112 R)
• M17: 12,178,314 km (0.096 R)
• M18: 12,653,736 km (0.089 R)
• M19: 16,915,779 km (0.071 R)
• M20: 20,979,007 km (0.099 R)
• M21: 21,662,968 km (0.051 R)
• M22: 24,631,888 km (0.11 R)
• M23: 28,410,880 km (0.111 R)
• M24: 29,530,769 km (0.115 R)
• M25: 30,582,891 km (0.058 R)
• M26: 31,462,227 km (0.089 R)
• M27: 35,361,645 km (0.099 R)
• M28: 36,221,684 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.6

Radius: 9.6

Gravity: 9.36 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 8.68 AU - 10.3 AU

Year: 10786 Days

Day: 5.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 74,474,516 km

• M1: 119,529 km (0.115 R)
• M2: 515,963 km (0.092 R)
• M3: 1,130,362 km (0.108 R)
• M4: 1,586,037 km (0.112 R)
• M5: 2,018,823 km (0.115 R)
• M6: 3,195,261 km (0.107 R)
• M7: 4,683,909 km (0.046 R)
• M8: 5,003,750 km (0.111 R)
• M9: 5,510,886 km (0.101 R)
• M10: 6,316,620 km (0.115 R)
• M11: 7,410,331 km (0.093 R)
• M12: 7,934,970 km (0.034 R)
• M13: 8,298,493 km (0.104 R)
• M14: 9,355,701 km (0.095 R)
• M15: 10,718,089 km (0.119 R)
• M16: 12,328,361 km (0.034 R)
• M17: 14,094,064 km (0.075 R)
• M18: 14,695,747 km (0.084 R)
• M19: 17,964,460 km (0.069 R)
• M20: 19,892,029 km (0.114 R)
• M21: 21,251,275 km (0.115 R)
• M22: 22,580,901 km (0.1 R)
• M23: 27,413,660 km (0.115 R)
• M24: 27,931,867 km (0.069 R)
• M25: 28,881,215 km (0.109 R)
• M26: 37,264,231 km (0.11 R)
• M27: 39,851,826 km (0.066 R)
• M28: 40,650,828 km (0.086 R)
• M29: 43,672,406 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.8

Radius: 9.3

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 9.1 AU - 10.74 AU

Year: 11528 Days

Day: 9.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,474,516 km

• M1: 115,938 km (0.1 R)
• M2: 1,423,573 km (0.093 R)
• M3: 4,233,021 km (0.119 R)
• M4: 4,968,893 km (0.118 R)
• M5: 7,866,454 km (0.11 R)
• M6: 12,085,713 km (0.107 R)
• M7: 12,973,127 km (0.119 R)
• M8: 13,989,944 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 601.5

Radius: 6

Gravity: 16.71 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 14.23 AU - 15.05 AU

Year: 20668 Days

Day: 19.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 74,474,516 km

• M1: 75,248 km (0.11 R)
• M2: 283,189 km (0.092 R)
• M3: 933,491 km (0.052 R)
• M4: 1,655,899 km (0.098 R)
• M5: 2,144,336 km (0.038 R)
• M6: 3,347,252 km (0.082 R)
• M7: 4,556,153 km (0.077 R)
• M8: 5,277,813 km (0.114 R)
• M9: 5,785,997 km (0.057 R)
• M10: 6,156,551 km (0.091 R)
• M11: 6,945,081 km (0.065 R)
• M12: 10,415,602 km (0.077 R)
• M13: 11,276,987 km (0.076 R)
• M14: 11,531,453 km (0.119 R)
• M15: 20,038,784 km (0.03 R)
• M16: 25,158,772 km (0.082 R)
• M17: 34,305,933 km (0.109 R)
• M18: 35,653,511 km (0.088 R)
• M19: 37,598,882 km (0.09 R)
• M20: 42,615,497 km (0.116 R)
• M21: 53,056,381 km (0.096 R)
• M22: 58,767,878 km (0.083 R)
• M23: 58,958,615 km (0.098 R)
• M24: 64,266,946 km (0.079 R)
• M25: 70,744,235 km (0.095 R)
• M26: 72,922,978 km (0.087 R)
• M27: 74,028,955 km (0.109 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: 213 - 14,331 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit