🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.55 AU - 0.71 AU

Year: 328 Days

Day: 19.4 Hours

Environment

Temp: -136 °C

Axial Tilt: 26.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 13,126,877 km

• M1: 27,227 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.7

Radius: 10.6

Gravity: 6.08 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.73 AU - 0.89 AU

Year: 478 Days

Day: 7.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 13,126,877 km

• M1: 131,945 km (0.105 R)
• M2: 465,549 km (0.056 R)
• M3: 908,957 km (0.087 R)
• M4: 1,446,611 km (0.036 R)
• M5: 2,269,549 km (0.112 R)
• M6: 2,909,230 km (0.106 R)
• M7: 3,283,823 km (0.1 R)
• M8: 4,757,811 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.1

Radius: 10.1

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.15 AU - 1.71 AU

Year: 1122 Days

Day: 15 Hours

Environment

Temp: -186 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 13,126,877 km

• M1: 125,662 km (0.102 R)
• M2: 498,909 km (0.084 R)
• M3: 882,777 km (0.116 R)
• M4: 1,198,728 km (0.112 R)
• M5: 1,592,320 km (0.115 R)
• M6: 2,096,913 km (0.104 R)
• M7: 2,428,721 km (0.084 R)
• M8: 2,908,781 km (0.114 R)
• M9: 3,255,998 km (0.032 R)
• M10: 3,866,806 km (0.064 R)
• M11: 4,453,678 km (0.088 R)
• M12: 5,348,722 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745

Radius: 12.1

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.48 AU - 1.7 AU

Year: 1315 Days

Day: 14.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 13,126,877 km

• M1: 150,495 km (0.092 R)
• M2: 536,757 km (0.071 R)
• M3: 932,743 km (0.052 R)
• M4: 1,352,814 km (0.094 R)
• M5: 1,952,701 km (0.092 R)
• M6: 2,351,080 km (0.097 R)
• M7: 3,123,903 km (0.097 R)
• M8: 3,956,415 km (0.096 R)
• M9: 4,361,376 km (0.088 R)
• M10: 5,214,234 km (0.094 R)
• M11: 5,857,205 km (0.119 R)
• M12: 6,314,676 km (0.078 R)
• M13: 7,301,872 km (0.1 R)
• M14: 7,724,486 km (0.054 R)
• M15: 8,532,464 km (0.078 R)
• M16: 9,273,273 km (0.119 R)
• M17: 9,928,511 km (0.044 R)
• M18: 11,331,291 km (0.101 R)
• M19: 12,560,536 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.9

Radius: 8.9

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 3.36 AU - 4.02 AU

Year: 4650 Days

Day: 11 Hours

Environment

Temp: -208 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 13,126,877 km

• M1: 111,151 km (0.035 R)
• M2: 631,153 km (0.095 R)
• M3: 911,201 km (0.118 R)
• M4: 1,285,794 km (0.093 R)
• M5: 1,625,231 km (0.087 R)
• M6: 2,133,864 km (0.073 R)
• M7: 2,557,675 km (0.103 R)
• M8: 2,942,590 km (0.065 R)
• M9: 3,248,069 km (0.083 R)
• M10: 3,755,505 km (0.114 R)
• M11: 4,972,932 km (0.094 R)
• M12: 5,455,834 km (0.087 R)
• M13: 5,745,605 km (0.089 R)
• M14: 6,173,605 km (0.071 R)
• M15: 6,622,997 km (0.063 R)
• M16: 7,065,507 km (0.113 R)
• M17: 8,771,970 km (0.118 R)
• M18: 11,821,972 km (0.111 R)
• M19: 12,267,624 km (0.056 R)
• M20: 15,853,784 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.3

Radius: 10

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.44 AU - 5.42 AU

Year: 6117 Days

Day: 13.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 13,126,877 km

• M1: 124,465 km (0.111 R)
• M2: 628,161 km (0.115 R)
• M3: 955,332 km (0.089 R)
• M4: 1,812,977 km (0.087 R)
• M5: 2,490,505 km (0.102 R)
• M6: 2,824,408 km (0.064 R)
• M7: 3,310,601 km (0.096 R)
• M8: 3,659,014 km (0.063 R)
• M9: 4,408,350 km (0.097 R)
• M10: 5,305,488 km (0.111 R)
• M11: 7,305,762 km (0.091 R)
• M12: 9,398,337 km (0.092 R)
• M13: 9,987,752 km (0.11 R)
• M14: 10,680,241 km (0.095 R)
• M15: 11,528,012 km (0.089 R)
• M16: 12,420,064 km (0.055 R)
• M17: 13,130,205 km (0.085 R)
• M18: 13,541,300 km (0.099 R)
• M19: 15,423,241 km (0.028 R)
• M20: 16,770,819 km (0.06 R)
• M21: 17,146,758 km (0.054 R)
• M22: 19,286,307 km (0.111 R)
• M23: 20,298,785 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.1

Radius: 12.4

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 3.58 AU - 5.76 AU

Year: 6620 Days

Day: 6.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 13,126,877 km

• M1: 171,439 km (0.069 R)
• M2: 696,228 km (0.058 R)
• M3: 1,207,404 km (0.092 R)
• M4: 1,766,152 km (0.076 R)
• M5: 2,277,478 km (0.112 R)
• M6: 2,672,267 km (0.041 R)
• M7: 3,428,933 km (0.094 R)
• M8: 6,076,666 km (0.119 R)
• M9: 10,758,032 km (0.083 R)
• M10: 12,589,558 km (0.118 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 271 - 17,959 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit