🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.27

Radius: 1.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.43 AU - 0.61 AU

Year: 144 Days

Day: 34.8 Hours

Environment

Temp: 165 °C

Axial Tilt: 4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.56 AU - 0.64 AU

Year: 178 Days

Day: 16.2 Hours

Environment

Temp: 121 °C

Axial Tilt: 34 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.8

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.05 AU - 3.25 AU

Year: 1652 Days

Day: 22.8 Hours

Environment

Temp: -109 °C

Axial Tilt: 47.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.86

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 2.61 AU - 4.21 AU

Year: 2411 Days

Day: 30.6 Hours

Environment

Temp: -124 °C

Axial Tilt: 28.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 8.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.4

Radius: 10.1

Gravity: 8.25 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 7.8 AU - 9.72 AU

Year: 9927 Days

Day: 14.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 56,399,881 km

• M1: 126,410 km (0.117 R)
• M2: 480,658 km (0.105 R)
• M3: 838,945 km (0.099 R)
• M4: 1,162,375 km (0.069 R)
• M5: 1,779,766 km (0.036 R)
• M6: 3,689,383 km (0.12 R)
• M7: 4,037,497 km (0.118 R)
• M8: 7,167,533 km (0.054 R)
• M9: 9,712,642 km (0.077 R)
• M10: 11,410,129 km (0.064 R)
• M11: 12,626,509 km (0.047 R)
• M12: 13,050,619 km (0.112 R)
• M13: 17,306,529 km (0.067 R)
• M14: 18,674,302 km (0.066 R)
• M15: 21,366,914 km (0.08 R)
• M16: 22,056,710 km (0.069 R)
• M17: 23,299,420 km (0.099 R)
• M18: 24,776,250 km (0.12 R)
• M19: 29,474,371 km (0.104 R)
• M20: 30,437,033 km (0.042 R)
• M21: 35,567,791 km (0.118 R)
• M22: 38,907,713 km (0.097 R)
• M23: 44,092,925 km (0.106 R)
• M24: 45,210,571 km (0.118 R)
• M25: 49,122,705 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276.4

Radius: 10.2

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 8.13 AU - 10.31 AU

Year: 10719 Days

Day: 5.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,399,881 km

• M1: 127,158 km (0.102 R)
• M2: 582,534 km (0.101 R)
• M3: 1,165,517 km (0.088 R)
• M4: 1,516,773 km (0.096 R)
• M5: 2,014,784 km (0.107 R)
• M6: 2,637,859 km (0.112 R)
• M7: 4,014,608 km (0.11 R)
• M8: 5,176,834 km (0.052 R)
• M9: 8,072,899 km (0.085 R)
• M10: 10,327,190 km (0.047 R)
• M11: 11,196,952 km (0.083 R)
• M12: 12,219,752 km (0.107 R)
• M13: 14,687,669 km (0.093 R)
• M14: 16,744,041 km (0.091 R)
• M15: 25,408,151 km (0.077 R)
• M16: 25,928,303 km (0.05 R)
• M17: 26,632,759 km (0.06 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.7

Radius: 14.9

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 10.56 AU - 11 AU

Year: 13552 Days

Day: 13.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 84.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 56,399,881 km

• M1: 185,501 km (0.073 R)
• M2: 690,693 km (0.049 R)
• M3: 1,248,544 km (0.108 R)
• M4: 1,781,711 km (0.11 R)
• M5: 2,795,535 km (0.033 R)
• M6: 3,354,882 km (0.115 R)
• M7: 3,873,089 km (0.098 R)
• M8: 4,540,295 km (0.113 R)
• M9: 6,028,495 km (0.092 R)
• M10: 7,637,270 km (0.108 R)
• M11: 8,591,555 km (0.11 R)
• M12: 9,097,795 km (0.076 R)
• M13: 11,088,045 km (0.078 R)
• M14: 12,375,484 km (0.076 R)
• M15: 21,711,289 km (0.089 R)
• M16: 26,063,988 km (0.087 R)
• M17: 26,913,555 km (0.119 R)
• M18: 28,111,833 km (0.046 R)
• M19: 30,849,325 km (0.091 R)
• M20: 31,560,513 km (0.106 R)
• M21: 38,055,155 km (0.072 R)
• M22: 49,629,692 km (0.104 R)
• M23: 51,762,509 km (0.094 R)
• M24: 53,614,381 km (0.069 R)
• M25: 54,815,652 km (0.041 R)
• M26: 56,034,725 km (0.115 R)
• M27: 58,889,052 km (0.058 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 462.1

Radius: 3.3

Gravity: 42.43 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 9.98 AU - 13.64 AU

Year: 15540 Days

Day: 16.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 56,399,881 km

• M1: 48,470 km (0.05 R)
• M2: 298,897 km (0.109 R)
• M3: 533,765 km (0.051 R)
• M4: 649,404 km (0.067 R)
• M5: 753,973 km (0.031 R)
• M6: 2,416,305 km (0.101 R)
• M7: 5,108,618 km (0.069 R)
• M8: 5,420,080 km (0.07 R)
• M9: 6,835,276 km (0.1 R)
• M10: 8,289,966 km (0.094 R)
• M11: 8,622,971 km (0.078 R)
• M12: 10,533,336 km (0.1 R)
• M13: 11,094,328 km (0.085 R)
• M14: 24,392,681 km (0.108 R)
• M15: 26,478,823 km (0.054 R)
• M16: 27,199,885 km (0.116 R)
• M17: 29,660,919 km (0.098 R)
• M18: 33,088,506 km (0.054 R)
• M19: 35,266,800 km (0.109 R)
• M20: 39,505,058 km (0.094 R)
• M21: 42,371,503 km (0.058 R)
• M22: 43,215,384 km (0.119 R)
• M23: 43,927,021 km (0.117 R)
• M24: 44,936,358 km (0.063 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 342 - 16,693 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit