🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.73 AU - 0.77 AU

Year: 227 Days

Day: 31.2 Hours

Environment

Temp: 191 °C

Axial Tilt: 9.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 111,542,744 km

• M1: 29,620 km (0.071 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.67 AU - 0.91 AU

Year: 246 Days

Day: 14.6 Hours

Environment

Temp: 207 °C

Axial Tilt: 40 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 111,542,744 km

• M1: 248,332 km (0.039 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.89 AU - 2.13 AU

Year: 997 Days

Day: 22.5 Hours

Environment

Temp: -52 °C

Axial Tilt: 8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.63

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 4.36 AU - 5.88 AU

Year: 4053 Days

Day: 31 Hours

Environment

Temp: -137 °C

Axial Tilt: 4.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307.9

Radius: 13.8

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 7.17 AU - 9.21 AU

Year: 8200 Days

Day: 6.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 111,542,744 km

• M1: 171,589 km (0.086 R)
• M2: 858,991 km (0.109 R)
• M3: 1,353,113 km (0.096 R)
• M4: 2,084,198 km (0.093 R)
• M5: 2,697,698 km (0.085 R)
• M6: 4,341,330 km (0.109 R)
• M7: 5,209,746 km (0.084 R)
• M8: 5,641,336 km (0.092 R)
• M9: 6,096,861 km (0.073 R)
• M10: 7,433,967 km (0.119 R)
• M11: 9,453,987 km (0.062 R)
• M12: 10,011,688 km (0.095 R)
• M13: 12,064,021 km (0.111 R)
• M14: 13,401,426 km (0.028 R)
• M15: 13,832,268 km (0.118 R)
• M16: 15,530,952 km (0.061 R)
• M17: 17,238,312 km (0.08 R)
• M18: 21,095,544 km (0.06 R)
• M19: 21,975,478 km (0.037 R)
• M20: 22,575,515 km (0.098 R)
• M21: 23,418,499 km (0.102 R)
• M22: 23,965,728 km (0.05 R)
• M23: 24,521,485 km (0.074 R)
• M24: 25,494,320 km (0.057 R)
• M25: 27,172,658 km (0.082 R)
• M26: 30,377,493 km (0.081 R)
• M27: 31,499,627 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.5

Radius: 9.8

Gravity: 7.98 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 8.74 AU - 13.5 AU

Year: 12973 Days

Day: 5.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 111,542,744 km

• M1: 121,922 km (0.05 R)
• M2: 508,184 km (0.034 R)
• M3: 831,315 km (0.116 R)
• M4: 1,246,300 km (0.111 R)
• M5: 2,303,059 km (0.112 R)
• M6: 4,193,079 km (0.081 R)
• M7: 5,433,245 km (0.108 R)
• M8: 6,613,871 km (0.104 R)
• M9: 6,944,632 km (0.039 R)
• M10: 8,767,632 km (0.097 R)
• M11: 9,949,605 km (0.071 R)
• M12: 10,495,487 km (0.111 R)
• M13: 11,003,821 km (0.089 R)
• M14: 12,008,520 km (0.118 R)
• M15: 13,728,447 km (0.032 R)
• M16: 17,259,106 km (0.063 R)
• M17: 20,296,242 km (0.07 R)
• M18: 26,052,320 km (0.089 R)
• M19: 28,805,668 km (0.117 R)
• M20: 30,593,213 km (0.101 R)
• M21: 31,864,346 km (0.1 R)
• M22: 32,335,131 km (0.114 R)
• M23: 35,635,559 km (0.099 R)
• M24: 40,239,434 km (0.042 R)
• M25: 40,651,576 km (0.113 R)
• M26: 41,344,812 km (0.109 R)
• M27: 45,225,082 km (0.115 R)
• M28: 57,437,654 km (0.067 R)

Planet 7 - Gas Giant

Semi-Major Axis: 13.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.4

Radius: 11.6

Gravity: 6.78 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 12.42 AU - 13.8 AU

Year: 16607 Days

Day: 8.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 111,542,744 km

• M1: 144,212 km (0.114 R)
• M2: 708,645 km (0.047 R)
• M3: 1,164,619 km (0.115 R)
• M4: 2,429,469 km (0.082 R)
• M5: 5,770,738 km (0.093 R)
• M6: 8,205,892 km (0.061 R)
• M7: 9,820,951 km (0.069 R)
• M8: 11,195,755 km (0.096 R)
• M9: 13,528,285 km (0.076 R)
• M10: 19,494,099 km (0.108 R)
• M11: 19,859,267 km (0.058 R)
• M12: 23,251,399 km (0.094 R)
• M13: 32,164,589 km (0.08 R)
• M14: 44,207,218 km (0.108 R)
• M15: 45,315,439 km (0.051 R)
• M16: 45,795,947 km (0.062 R)
• M17: 53,418,258 km (0.12 R)
• M18: 62,238,848 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 20.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 854.4

Radius: 6.8

Gravity: 18.48 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 15.4 AU - 25.02 AU

Year: 31785 Days

Day: 20.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 111,542,744 km

• M1: 84,822 km (0.034 R)
• M2: 681,867 km (0.088 R)
• M3: 1,703,621 km (0.117 R)
• M4: 2,427,973 km (0.077 R)
• M5: 3,341,119 km (0.093 R)
• M6: 5,504,454 km (0.091 R)
• M7: 6,056,769 km (0.11 R)
• M8: 7,936,167 km (0.08 R)
• M9: 8,401,416 km (0.091 R)
• M10: 11,509,462 km (0.09 R)
• M11: 12,410,939 km (0.11 R)
• M12: 13,278,008 km (0.099 R)
• M13: 15,938,008 km (0.068 R)
• M14: 16,772,165 km (0.109 R)
• M15: 17,056,700 km (0.104 R)
• M16: 21,719,068 km (0.031 R)
• M17: 30,693,743 km (0.087 R)
• M18: 34,363,229 km (0.102 R)
• M19: 40,145,486 km (0.043 R)
• M20: 40,996,548 km (0.075 R)
• M21: 41,340,324 km (0.109 R)
• M22: 56,087,832 km (0.047 R)
• M23: 63,126,412 km (0.109 R)
• M24: 64,740,723 km (0.094 R)
• M25: 83,523,633 km (0.105 R)
• M26: 86,029,397 km (0.096 R)
• M27: 96,858,189 km (0.068 R)
• M28: 99,933,472 km (0.108 R)
• M29: 100,244,486 km (0.042 R)
• M30: 105,309,571 km (0.062 R)

Kuiper Belt

Range: 31.4 - 61.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 489 - 19,266 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit