🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.71 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.3 AU - 1.54 AU

Year: 637 Days

Day: 25.3 Hours

Environment

Temp: -42 °C

Axial Tilt: 13.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.45 AU - 1.47 AU

Year: 665 Days

Day: 23 Hours

Environment

Temp: -52 °C

Axial Tilt: 2.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,910,390 km

• M1: 162,613 km (0.085 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.84

Radius: 1.28

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.29 AU - 2.09 AU

Year: 828 Days

Day: 12.2 Hours

Environment

Temp: -50 °C

Axial Tilt: 26.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 3.08 AU - 3.1 AU

Year: 2046 Days

Day: 15.1 Hours

Environment

Temp: -105 °C

Axial Tilt: 6.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.99

Radius: 1.32

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.81 AU - 4.15 AU

Year: 2991 Days

Day: 47.3 Hours

Environment

Temp: -133 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,910,390 km

• M1: 468,989 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.9

Radius: 10

Gravity: 6.04 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 8.88 AU - 11.36 AU

Year: 12128 Days

Day: 10.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 51,910,390 km

• M1: 132,544 km (0.117 R)
• M2: 910,153 km (0.072 R)
• M3: 2,557,226 km (0.075 R)
• M4: 3,031,152 km (0.051 R)
• M5: 3,614,135 km (0.042 R)
• M6: 4,596,694 km (0.1 R)
• M7: 5,855,261 km (0.069 R)
• M8: 6,760,627 km (0.12 R)
• M9: 7,330,296 km (0.037 R)
• M10: 9,479,718 km (0.115 R)
• M11: 9,883,483 km (0.072 R)
• M12: 16,090,597 km (0.097 R)
• M13: 16,958,564 km (0.12 R)
• M14: 17,629,959 km (0.111 R)
• M15: 20,243,733 km (0.106 R)
• M16: 22,123,431 km (0.065 R)
• M17: 25,253,018 km (0.083 R)
• M18: 27,326,893 km (0.034 R)
• M19: 28,561,674 km (0.036 R)
• M20: 31,031,535 km (0.031 R)
• M21: 32,148,582 km (0.105 R)
• M22: 42,203,953 km (0.069 R)
• M23: 45,542,828 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304

Radius: 12.7

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 10.73 AU - 12.27 AU

Year: 14692 Days

Day: 12.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,910,390 km

• M1: 157,975 km (0.081 R)
• M2: 563,685 km (0.092 R)
• M3: 1,454,989 km (0.118 R)
• M4: 2,108,582 km (0.077 R)
• M5: 3,427,437 km (0.08 R)
• M6: 5,563,844 km (0.046 R)
• M7: 6,044,502 km (0.083 R)
• M8: 7,011,503 km (0.101 R)
• M9: 8,295,950 km (0.055 R)
• M10: 8,925,159 km (0.084 R)
• M11: 10,027,844 km (0.111 R)
• M12: 11,273,247 km (0.054 R)
• M13: 12,102,468 km (0.106 R)
• M14: 14,965,472 km (0.064 R)
• M15: 15,628,340 km (0.089 R)
• M16: 17,084,376 km (0.051 R)
• M17: 28,773,804 km (0.079 R)
• M18: 36,352,432 km (0.071 R)
• M19: 37,550,861 km (0.067 R)
• M20: 43,672,256 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 251.4

Radius: 5.5

Gravity: 8.31 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 12.83 AU - 14.09 AU

Year: 18603 Days

Day: 23.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 51,910,390 km

• M1: 74,500 km (0.114 R)
• M2: 341,532 km (0.107 R)
• M3: 562,338 km (0.103 R)
• M4: 830,867 km (0.115 R)
• M5: 1,268,440 km (0.079 R)
• M6: 1,496,278 km (0.1 R)
• M7: 2,348,836 km (0.101 R)
• M8: 2,890,680 km (0.117 R)
• M9: 4,190,236 km (0.093 R)
• M10: 4,484,495 km (0.078 R)
• M11: 5,982,718 km (0.065 R)
• M12: 9,821,549 km (0.073 R)
• M13: 11,266,216 km (0.047 R)
• M14: 12,364,114 km (0.104 R)
• M15: 12,664,507 km (0.118 R)
• M16: 12,908,202 km (0.11 R)
• M17: 14,569,935 km (0.073 R)
• M18: 16,585,916 km (0.064 R)
• M19: 17,850,168 km (0.105 R)
• M20: 18,859,355 km (0.078 R)
• M21: 19,742,581 km (0.095 R)
• M22: 22,379,542 km (0.104 R)
• M23: 24,387,295 km (0.049 R)
• M24: 26,412,850 km (0.118 R)
• M25: 33,157,919 km (0.09 R)
• M26: 37,234,760 km (0.08 R)
• M27: 41,767,875 km (0.099 R)
• M28: 45,648,743 km (0.118 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 510 - 10,540 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit