🌌 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 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.46 AU - 0.66 AU

Year: 275 Days

Day: 13.7 Hours

Environment

Temp: -123 °C

Axial Tilt: 2.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,835,847 km

• M1: 55,052 km (0.066 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.5

Radius: 13.5

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.03 AU - 1.05 AU

Year: 696 Days

Day: 10.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,835,847 km

• M1: 167,849 km (0.094 R)
• M2: 588,219 km (0.052 R)
• M3: 1,178,382 km (0.068 R)
• M4: 1,744,012 km (0.097 R)
• M5: 2,196,546 km (0.109 R)
• M6: 2,694,706 km (0.095 R)
• M7: 3,192,419 km (0.108 R)
• M8: 4,502,148 km (0.11 R)
• M9: 4,947,950 km (0.11 R)
• M10: 6,026,251 km (0.115 R)
• M11: 7,211,365 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 361

Radius: 13.3

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.85 AU - 1.35 AU

Year: 757 Days

Day: 12 Hours

Environment

Temp: -154 °C

Axial Tilt: 67.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,835,847 km

• M1: 165,605 km (0.102 R)
• M2: 648,656 km (0.072 R)
• M3: 1,397,992 km (0.086 R)
• M4: 1,896,751 km (0.113 R)
• M5: 2,534,786 km (0.085 R)
• M6: 3,087,102 km (0.057 R)
• M7: 3,772,410 km (0.047 R)
• M8: 4,201,905 km (0.106 R)
• M9: 5,144,372 km (0.116 R)
• M10: 5,962,971 km (0.093 R)
• M11: 6,510,350 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.5

Radius: 11.1

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.4 AU - 2.18 AU

Year: 1571 Days

Day: 5.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 46,835,847 km

• M1: 138,079 km (0.104 R)
• M2: 483,949 km (0.063 R)
• M3: 1,015,171 km (0.086 R)
• M4: 1,398,291 km (0.068 R)
• M5: 2,092,725 km (0.083 R)
• M6: 2,494,245 km (0.101 R)
• M7: 2,975,801 km (0.076 R)
• M8: 3,831,501 km (0.039 R)
• M9: 5,232,485 km (0.113 R)
• M10: 5,980,025 km (0.072 R)
• M11: 6,355,815 km (0.116 R)
• M12: 7,606,304 km (0.1 R)
• M13: 10,419,791 km (0.061 R)
• M14: 10,965,524 km (0.107 R)
• M15: 11,820,027 km (0.096 R)
• M16: 13,302,243 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.7

Radius: 8.8

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.15 AU - 2.29 AU

Year: 2170 Days

Day: 12.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,835,847 km

• M1: 121,473 km (0.055 R)
• M2: 459,415 km (0.027 R)
• M3: 769,083 km (0.104 R)
• M4: 1,208,452 km (0.046 R)
• M5: 1,495,231 km (0.098 R)
• M6: 2,032,736 km (0.039 R)
• M7: 2,922,245 km (0.096 R)
• M8: 5,268,837 km (0.108 R)
• M9: 5,898,644 km (0.107 R)
• M10: 6,831,088 km (0.07 R)
• M11: 8,436,123 km (0.08 R)
• M12: 9,069,969 km (0.071 R)
• M13: 10,463,773 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.9

Radius: 12.9

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 2.44 AU - 2.96 AU

Year: 2910 Days

Day: 12.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 46,835,847 km

• M1: 160,519 km (0.081 R)
• M2: 669,151 km (0.06 R)
• M3: 1,272,479 km (0.083 R)
• M4: 1,679,087 km (0.119 R)
• M5: 2,867,791 km (0.104 R)
• M6: 3,719,452 km (0.081 R)
• M7: 4,805,832 km (0.115 R)
• M8: 6,876,117 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.3

Radius: 14.1

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 4.41 AU - 6.31 AU

Year: 8141 Days

Day: 9.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 46,835,847 km

• M1: 175,478 km (0.084 R)
• M2: 895,642 km (0.099 R)
• M3: 1,512,285 km (0.087 R)
• M4: 2,074,773 km (0.057 R)
• M5: 5,019,757 km (0.037 R)
• M6: 5,766,400 km (0.032 R)
• M7: 6,548,796 km (0.119 R)
• M8: 8,413,683 km (0.106 R)
• M9: 9,661,330 km (0.063 R)
• M10: 10,456,891 km (0.06 R)
• M11: 11,954,067 km (0.116 R)
• M12: 14,461,925 km (0.094 R)
• M13: 15,238,638 km (0.078 R)
• M14: 17,230,982 km (0.112 R)
• M15: 22,833,123 km (0.096 R)
• M16: 23,355,968 km (0.108 R)
• M17: 26,185,910 km (0.09 R)
• M18: 28,029,255 km (0.104 R)
• M19: 29,237,109 km (0.063 R)
• M20: 32,848,252 km (0.083 R)
• M21: 33,851,904 km (0.068 R)
• M22: 35,453,349 km (0.082 R)
• M23: 38,807,184 km (0.104 R)
• M24: 39,677,694 km (0.101 R)
• M25: 44,903,446 km (0.081 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 354 - 12,988 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit