🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.63

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.41 AU - 0.67 AU

Year: 256 Days

Day: 42.2 Hours

Environment

Temp: -120 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 10,614,972 km

• M1: 28,424 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.4

Radius: 13.1

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.67 AU - 0.77 AU

Year: 394 Days

Day: 7.6 Hours

Environment

Temp: -136 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 10,614,972 km

• M1: 162,912 km (0.097 R)
• M2: 601,683 km (0.094 R)
• M3: 1,148,762 km (0.042 R)
• M4: 1,579,155 km (0.114 R)
• M5: 2,323,704 km (0.103 R)
• M6: 2,744,523 km (0.092 R)
• M7: 3,445,239 km (0.082 R)
• M8: 3,862,767 km (0.043 R)
• M9: 4,676,130 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.5

Radius: 9.8

Gravity: 7.5 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.92 AU - 1.06 AU

Year: 636 Days

Day: 6.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 10,614,972 km

• M1: 121,922 km (0.054 R)
• M2: 528,230 km (0.115 R)
• M3: 1,130,062 km (0.093 R)
• M4: 1,443,021 km (0.093 R)
• M5: 1,773,184 km (0.101 R)
• M6: 2,116,660 km (0.08 R)
• M7: 2,666,283 km (0.069 R)
• M8: 3,451,522 km (0.096 R)
• M9: 4,110,052 km (0.039 R)
• M10: 4,446,049 km (0.07 R)
• M11: 5,001,655 km (0.103 R)
• M12: 6,055,722 km (0.098 R)
• M13: 6,949,569 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.2

Radius: 8.5

Gravity: 6.11 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.84 AU - 1.2 AU

Year: 665 Days

Day: 9.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 10,614,972 km

• M1: 105,766 km (0.092 R)
• M2: 375,640 km (0.073 R)
• M3: 1,003,652 km (0.04 R)
• M4: 1,692,401 km (0.045 R)
• M5: 2,429,918 km (0.099 R)
• M6: 2,783,717 km (0.096 R)
• M7: 3,807,864 km (0.113 R)
• M8: 4,435,427 km (0.106 R)
• M9: 4,966,350 km (0.118 R)
• M10: 5,733,488 km (0.118 R)
• M11: 6,173,605 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.4

Radius: 12.6

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.14 AU - 1.78 AU

Year: 1139 Days

Day: 12.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 10,614,972 km

• M1: 156,779 km (0.082 R)
• M2: 597,494 km (0.109 R)
• M3: 1,174,642 km (0.097 R)
• M4: 1,749,248 km (0.086 R)
• M5: 2,404,337 km (0.083 R)
• M6: 2,847,147 km (0.097 R)
• M7: 4,568,719 km (0.073 R)
• M8: 4,987,294 km (0.119 R)
• M9: 5,860,048 km (0.118 R)
• M10: 7,730,021 km (0.043 R)
• M11: 8,870,855 km (0.07 R)
• M12: 9,584,137 km (0.118 R)
• M13: 10,151,412 km (0.037 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: 288 - 14,975 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit