🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.76

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.84 AU - 0.9 AU

Year: 306 Days

Day: 17 Hours

Environment

Temp: 21 °C

Axial Tilt: 1.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.81 AU - 0.95 AU

Year: 311 Days

Day: 27.8 Hours

Environment

Temp: 42 °C

Axial Tilt: 38.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Asteroid Belt

Center: 2.63 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.6

Radius: 9.4

Gravity: 8.88 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 3.57 AU - 5.19 AU

Year: 3453 Days

Day: 11.5 Hours

Environment

Temp: -133 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 28,056,458 km

• M1: 116,836 km (0.113 R)
• M2: 491,579 km (0.085 R)
• M3: 807,081 km (0.051 R)
• M4: 1,351,318 km (0.105 R)
• M5: 2,029,744 km (0.04 R)
• M6: 2,954,558 km (0.108 R)
• M7: 4,094,045 km (0.088 R)
• M8: 4,408,500 km (0.114 R)
• M9: 5,266,144 km (0.065 R)
• M10: 5,611,715 km (0.115 R)
• M11: 7,774,153 km (0.117 R)
• M12: 8,187,940 km (0.07 R)
• M13: 9,022,248 km (0.101 R)
• M14: 9,363,780 km (0.098 R)
• M15: 11,420,900 km (0.055 R)
• M16: 12,508,327 km (0.11 R)
• M17: 13,515,120 km (0.042 R)
• M18: 13,812,521 km (0.089 R)
• M19: 14,626,932 km (0.043 R)
• M20: 14,993,147 km (0.106 R)
• M21: 15,419,202 km (0.109 R)
• M22: 17,437,128 km (0.099 R)
• M23: 18,087,280 km (0.09 R)
• M24: 18,509,445 km (0.072 R)
• M25: 22,195,088 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61

Radius: 9.7

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 5.46 AU - 7.88 AU

Year: 6490 Days

Day: 6.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,056,458 km

• M1: 120,725 km (0.077 R)
• M2: 1,431,352 km (0.09 R)
• M3: 2,600,310 km (0.119 R)
• M4: 3,664,400 km (0.1 R)
• M5: 3,971,075 km (0.077 R)
• M6: 5,261,208 km (0.119 R)
• M7: 6,014,732 km (0.055 R)
• M8: 6,366,287 km (0.043 R)
• M9: 7,504,278 km (0.09 R)
• M10: 8,061,380 km (0.071 R)
• M11: 8,458,413 km (0.108 R)
• M12: 10,824,902 km (0.109 R)
• M13: 13,816,411 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.8

Radius: 12.5

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 6.23 AU - 8.07 AU

Year: 7203 Days

Day: 8.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,056,458 km

• M1: 155,432 km (0.101 R)
• M2: 794,514 km (0.09 R)
• M3: 1,194,988 km (0.099 R)
• M4: 2,483,923 km (0.094 R)
• M5: 4,078,487 km (0.061 R)
• M6: 4,647,258 km (0.112 R)
• M7: 7,712,219 km (0.075 R)
• M8: 8,286,824 km (0.115 R)
• M9: 18,338,904 km (0.076 R)
• M10: 21,250,228 km (0.053 R)
• M11: 24,533,153 km (0.111 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 285 - 12,512 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit