🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.59 AU - 0.81 AU

Year: 256 Days

Day: 32.1 Hours

Environment

Temp: -4 °C

Axial Tilt: 8.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 73,470,256 km

• M1: 146,008 km (0.042 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.85 AU - 1.37 AU

Year: 511 Days

Day: 14.1 Hours

Environment

Temp: -79 °C

Axial Tilt: 34.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.94 AU - 1.5 AU

Year: 588 Days

Day: 41.9 Hours

Environment

Temp: -72 °C

Axial Tilt: 26.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 73,470,256 km

• M1: 82,129 km (0.098 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.28

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.85 AU - 2.49 AU

Year: 1396 Days

Day: 47.5 Hours

Environment

Temp: -115 °C

Axial Tilt: 42 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.6

Radius: 10.1

Gravity: 8.41 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 2.15 AU - 3.49 AU

Year: 2067 Days

Day: 9.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,470,256 km

• M1: 125,812 km (0.069 R)
• M2: 486,492 km (0.034 R)
• M3: 830,567 km (0.108 R)
• M4: 1,571,675 km (0.074 R)
• M5: 2,301,114 km (0.119 R)
• M6: 2,676,904 km (0.051 R)
• M7: 3,553,398 km (0.103 R)
• M8: 4,019,396 km (0.104 R)
• M9: 4,718,317 km (0.065 R)
• M10: 5,400,483 km (0.047 R)
• M11: 6,737,140 km (0.096 R)
• M12: 7,875,730 km (0.115 R)
• M13: 8,250,622 km (0.086 R)
• M14: 9,728,649 km (0.116 R)
• M15: 10,087,833 km (0.116 R)
• M16: 10,605,591 km (0.054 R)
• M17: 13,201,563 km (0.09 R)
• M18: 13,597,698 km (0.116 R)
• M19: 14,646,380 km (0.076 R)
• M20: 15,797,386 km (0.108 R)
• M21: 16,750,474 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.1

Radius: 12.4

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.82 AU - 3.18 AU

Year: 2268 Days

Day: 13.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,470,256 km

• M1: 154,385 km (0.087 R)
• M2: 596,297 km (0.052 R)
• M3: 1,045,091 km (0.103 R)
• M4: 1,441,525 km (0.118 R)
• M5: 2,265,959 km (0.11 R)
• M6: 3,211,268 km (0.063 R)
• M7: 3,784,228 km (0.109 R)
• M8: 5,020,355 km (0.025 R)
• M9: 6,264,710 km (0.113 R)
• M10: 6,703,630 km (0.113 R)
• M11: 7,986,282 km (0.096 R)
• M12: 8,871,603 km (0.109 R)
• M13: 10,954,304 km (0.089 R)
• M14: 12,815,002 km (0.072 R)
• M15: 13,255,568 km (0.091 R)
• M16: 15,414,265 km (0.044 R)
• M17: 16,064,567 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.7

Radius: 11.5

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 2.87 AU - 3.35 AU

Year: 2394 Days

Day: 14.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,470,256 km

• M1: 143,165 km (0.112 R)
• M2: 531,671 km (0.111 R)
• M3: 1,243,308 km (0.071 R)
• M4: 3,126,147 km (0.097 R)
• M5: 3,840,626 km (0.111 R)
• M6: 4,789,675 km (0.065 R)
• M7: 5,210,793 km (0.087 R)
• M8: 7,421,102 km (0.059 R)
• M9: 8,361,324 km (0.082 R)
• M10: 10,010,192 km (0.066 R)
• M11: 10,993,050 km (0.034 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 941.3

Radius: 3.4

Gravity: 81.43 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 8.86 AU - 13.38 AU

Year: 16188 Days

Day: 16.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,470,256 km

• M1: 43,533 km (0.117 R)
• M2: 321,037 km (0.06 R)
• M3: 3,468,127 km (0.076 R)
• M4: 3,612,938 km (0.071 R)
• M5: 6,128,127 km (0.032 R)
• M6: 6,733,400 km (0.118 R)
• M7: 8,840,636 km (0.112 R)
• M8: 14,517,725 km (0.079 R)
• M9: 20,021,880 km (0.071 R)
• M10: 20,207,381 km (0.08 R)
• M11: 24,480,046 km (0.115 R)
• M12: 27,449,115 km (0.098 R)
• M13: 28,372,882 km (0.08 R)
• M14: 32,021,574 km (0.119 R)
• M15: 34,487,096 km (0.054 R)
• M16: 34,620,388 km (0.09 R)
• M17: 34,887,719 km (0.095 R)
• M18: 38,346,721 km (0.034 R)
• M19: 51,284,992 km (0.114 R)
• M20: 63,595,850 km (0.115 R)
• M21: 71,939,073 km (0.081 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 370 - 13,758 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit