🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.2

Radius: 12.9

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.53 AU - 0.57 AU

Year: 277 Days

Day: 13.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,300,446 km

• M1: 160,519 km (0.108 R)
• M2: 776,563 km (0.068 R)
• M3: 1,227,002 km (0.091 R)
• M4: 1,630,766 km (0.099 R)
• M5: 2,685,731 km (0.113 R)
• M6: 3,303,719 km (0.075 R)
• M7: 3,716,909 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128

Radius: 13.4

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.52 AU - 0.66 AU

Year: 307 Days

Day: 12.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 40,300,446 km

• M1: 167,849 km (0.112 R)
• M2: 750,533 km (0.109 R)
• M3: 1,552,228 km (0.077 R)
• M4: 1,987,109 km (0.112 R)
• M5: 2,518,929 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.7

Radius: 10

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.65 AU - 0.73 AU

Year: 389 Days

Day: 9.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 40,300,446 km

• M1: 124,465 km (0.098 R)
• M2: 489,035 km (0.073 R)
• M3: 847,322 km (0.108 R)
• M4: 1,253,481 km (0.049 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.1

Radius: 10.6

Gravity: 6.11 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.83 AU - 0.85 AU

Year: 522 Days

Day: 5.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,300,446 km

• M1: 138,079 km (0.117 R)
• M2: 506,688 km (0.075 R)
• M3: 858,243 km (0.067 R)
• M4: 1,322,744 km (0.12 R)
• M5: 1,659,639 km (0.112 R)
• M6: 2,542,715 km (0.067 R)
• M7: 2,981,037 km (0.07 R)
• M8: 3,432,074 km (0.05 R)
• M9: 3,779,889 km (0.026 R)
• M10: 4,592,655 km (0.105 R)
• M11: 5,196,432 km (0.083 R)
• M12: 6,163,582 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.6

Radius: 11.8

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.69 AU - 1.07 AU

Year: 560 Days

Day: 10.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,300,446 km

• M1: 146,756 km (0.083 R)
• M2: 562,189 km (0.058 R)
• M3: 971,489 km (0.094 R)
• M4: 1,377,946 km (0.06 R)
• M5: 1,940,584 km (0.109 R)
• M6: 2,531,346 km (0.037 R)
• M7: 3,168,782 km (0.109 R)
• M8: 3,595,884 km (0.07 R)
• M9: 3,978,855 km (0.108 R)
• M10: 5,033,669 km (0.116 R)
• M11: 5,583,591 km (0.069 R)
• M12: 6,044,801 km (0.084 R)
• M13: 6,416,701 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.8

Radius: 8.2

Gravity: 9.47 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.77 AU - 1.03 AU

Year: 579 Days

Day: 8.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,300,446 km

• M1: 102,026 km (0.098 R)
• M2: 460,013 km (0.105 R)
• M3: 764,894 km (0.111 R)
• M4: 1,164,619 km (0.058 R)
• M5: 1,455,288 km (0.087 R)
• M6: 1,714,840 km (0.099 R)
• M7: 2,085,843 km (0.061 R)
• M8: 2,408,376 km (0.053 R)
• M9: 2,786,260 km (0.067 R)
• M10: 3,143,051 km (0.065 R)
• M11: 3,674,872 km (0.061 R)
• M12: 3,990,673 km (0.078 R)
• M13: 4,369,604 km (0.099 R)
• M14: 5,581,048 km (0.108 R)
• M15: 6,341,454 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.5

Radius: 13.8

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.92 AU - 1.44 AU

Year: 869 Days

Day: 13.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 40,300,446 km

• M1: 171,589 km (0.102 R)
• M2: 696,079 km (0.106 R)
• M3: 1,175,241 km (0.101 R)
• M4: 2,835,179 km (0.04 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.7

Radius: 10.3

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 4.73 AU - 6.19 AU

Year: 8653 Days

Day: 14.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 40,300,446 km

• M1: 128,056 km (0.06 R)
• M2: 755,768 km (0.107 R)
• M3: 1,107,922 km (0.109 R)
• M4: 1,720,974 km (0.081 R)
• M5: 2,065,498 km (0.067 R)
• M6: 2,660,748 km (0.068 R)
• M7: 3,912,134 km (0.082 R)
• M8: 4,711,136 km (0.107 R)
• M9: 5,089,619 km (0.079 R)
• M10: 6,595,471 km (0.112 R)
• M11: 6,958,695 km (0.118 R)
• M12: 7,489,767 km (0.087 R)
• M13: 8,088,458 km (0.087 R)
• M14: 8,675,779 km (0.119 R)
• M15: 11,008,309 km (0.042 R)
• M16: 11,677,460 km (0.081 R)
• M17: 12,815,302 km (0.049 R)
• M18: 16,275,201 km (0.057 R)
• M19: 16,739,104 km (0.049 R)
• M20: 17,554,712 km (0.098 R)
• M21: 23,515,738 km (0.072 R)
• M22: 26,399,686 km (0.056 R)
• M23: 27,318,217 km (0.074 R)
• M24: 33,282,085 km (0.057 R)
• M25: 40,300,470 km (0.102 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 248 - 12,376 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit