🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.96 AU - 1.08 AU

Year: 443 Days

Day: 26.2 Hours

Environment

Temp: -62 °C

Axial Tilt: 35.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.05 AU - 1.21 AU

Year: 517 Days

Day: 18.1 Hours

Environment

Temp: -69 °C

Axial Tilt: 3.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 19,409,447 km

• M1: 154,535 km (0.103 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.99 AU - 1.45 AU

Year: 580 Days

Day: 32.6 Hours

Environment

Temp: -81 °C

Axial Tilt: 45.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.24 AU - 1.26 AU

Year: 602 Days

Day: 22.7 Hours

Environment

Temp: -66 °C

Axial Tilt: 32.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 19,409,447 km

• M1: 91,703 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.1

Radius: 13.1

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 3.32 AU - 3.7 AU

Year: 2831 Days

Day: 5.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 141.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 19,409,447 km

• M1: 170,691 km (0.075 R)
• M2: 584,928 km (0.063 R)
• M3: 1,339,799 km (0.115 R)
• M4: 3,085,007 km (0.09 R)
• M5: 4,003,688 km (0.075 R)
• M6: 6,332,777 km (0.114 R)
• M7: 6,745,069 km (0.043 R)
• M8: 8,232,221 km (0.087 R)
• M9: 9,799,857 km (0.106 R)
• M10: 11,310,048 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.5

Radius: 12.9

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 3.96 AU - 4.3 AU

Year: 3613 Days

Day: 10.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 19,409,447 km

• M1: 170,841 km (0.079 R)
• M2: 577,448 km (0.104 R)
• M3: 1,092,962 km (0.071 R)
• M4: 2,308,146 km (0.073 R)
• M5: 3,073,189 km (0.115 R)
• M6: 3,554,595 km (0.106 R)
• M7: 5,285,442 km (0.086 R)
• M8: 7,921,058 km (0.116 R)
• M9: 8,724,398 km (0.114 R)
• M10: 9,697,233 km (0.097 R)
• M11: 10,992,452 km (0.089 R)
• M12: 13,531,726 km (0.08 R)
• M13: 15,623,403 km (0.06 R)
• M14: 17,170,395 km (0.079 R)
• M15: 19,616,918 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.3

Radius: 12.6

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 4.15 AU - 5.11 AU

Year: 4288 Days

Day: 7.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 19,409,447 km

• M1: 156,779 km (0.101 R)
• M2: 2,122,345 km (0.048 R)
• M3: 2,685,282 km (0.097 R)
• M4: 3,743,537 km (0.069 R)
• M5: 4,428,695 km (0.107 R)
• M6: 5,378,043 km (0.078 R)
• M7: 5,779,564 km (0.069 R)
• M8: 8,406,353 km (0.107 R)
• M9: 8,981,707 km (0.09 R)
• M10: 10,572,231 km (0.055 R)
• M11: 12,101,570 km (0.117 R)
• M12: 13,861,290 km (0.118 R)
• M13: 14,620,050 km (0.118 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.9

Radius: 10

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 5.87 AU - 7.11 AU

Year: 7117 Days

Day: 9.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 19,409,447 km

• M1: 129,851 km (0.093 R)
• M2: 451,337 km (0.097 R)
• M3: 1,012,329 km (0.069 R)
• M4: 1,663,080 km (0.101 R)
• M5: 2,528,503 km (0.073 R)
• M6: 3,392,132 km (0.112 R)
• M7: 4,165,852 km (0.078 R)
• M8: 4,528,477 km (0.034 R)
• M9: 5,244,453 km (0.085 R)
• M10: 7,410,630 km (0.033 R)
• M11: 8,371,048 km (0.09 R)
• M12: 8,846,769 km (0.094 R)
• M13: 10,077,212 km (0.082 R)
• M14: 10,460,033 km (0.1 R)
• M15: 12,697,418 km (0.034 R)
• M16: 13,280,401 km (0.093 R)
• M17: 14,355,412 km (0.076 R)
• M18: 16,257,249 km (0.119 R)
• M19: 17,706,853 km (0.119 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.4

Radius: 13.3

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 8.85 AU - 10.43 AU

Year: 12884 Days

Day: 10.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 19,409,447 km

• M1: 165,605 km (0.073 R)
• M2: 711,338 km (0.083 R)
• M3: 1,621,940 km (0.078 R)
• M4: 2,982,084 km (0.034 R)
• M5: 8,154,730 km (0.097 R)
• M6: 11,530,705 km (0.059 R)
• M7: 14,524,158 km (0.102 R)
• M8: 15,694,462 km (0.118 R)
• M9: 18,388,869 km (0.032 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 514 - 10,715 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit