🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.42 AU - 0.64 AU

Year: 253 Days

Day: 46.9 Hours

Environment

Temp: -111 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.42

Radius: 1.64

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.53 AU - 0.57 AU

Year: 268 Days

Day: 31.6 Hours

Environment

Temp: -123 °C

Axial Tilt: 27.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 24,306,994 km

• M1: 613,351 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.2

Radius: 14.4

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.56 AU - 0.8 AU

Year: 368 Days

Day: 10.8 Hours

Environment

Temp: -126 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 24,306,994 km

• M1: 179,218 km (0.089 R)
• M2: 713,582 km (0.108 R)
• M3: 1,761,515 km (0.115 R)
• M4: 2,606,294 km (0.116 R)
• M5: 3,358,771 km (0.115 R)
• M6: 3,879,970 km (0.12 R)
• M7: 4,496,314 km (0.119 R)
• M8: 5,086,776 km (0.031 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.5

Radius: 10.2

Gravity: 7.58 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.77 AU - 1.07 AU

Year: 579 Days

Day: 13.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 24,306,994 km

• M1: 126,859 km (0.103 R)
• M2: 495,169 km (0.039 R)
• M3: 841,488 km (0.089 R)
• M4: 1,284,148 km (0.068 R)
• M5: 1,957,339 km (0.079 R)
• M6: 2,502,324 km (0.064 R)
• M7: 2,862,406 km (0.109 R)
• M8: 3,282,327 km (0.12 R)
• M9: 3,743,088 km (0.07 R)
• M10: 4,538,650 km (0.118 R)
• M11: 5,060,896 km (0.1 R)
• M12: 5,659,437 km (0.104 R)
• M13: 6,423,284 km (0.05 R)
• M14: 6,747,612 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.8

Radius: 10.9

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.21 AU - 1.41 AU

Year: 984 Days

Day: 11.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 24,306,994 km

• M1: 135,536 km (0.047 R)
• M2: 478,115 km (0.085 R)
• M3: 1,712,148 km (0.109 R)
• M4: 2,478,986 km (0.116 R)
• M5: 2,968,022 km (0.093 R)
• M6: 3,505,677 km (0.101 R)
• M7: 3,846,161 km (0.054 R)
• M8: 4,294,207 km (0.074 R)
• M9: 4,984,003 km (0.08 R)
• M10: 5,416,191 km (0.12 R)
• M11: 5,767,297 km (0.096 R)
• M12: 6,515,286 km (0.079 R)
• M13: 6,888,982 km (0.119 R)
• M14: 7,808,859 km (0.107 R)
• M15: 8,978,266 km (0.116 R)
• M16: 9,952,447 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57.8

Radius: 13.1

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.73 AU - 3.15 AU

Year: 3307 Days

Day: 5.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,306,994 km

• M1: 163,062 km (0.038 R)
• M2: 982,708 km (0.108 R)
• M3: 1,414,149 km (0.116 R)
• M4: 1,872,217 km (0.106 R)
• M5: 2,942,441 km (0.105 R)
• M6: 4,026,427 km (0.075 R)
• M7: 5,170,252 km (0.079 R)
• M8: 6,903,343 km (0.072 R)
• M9: 7,641,010 km (0.072 R)
• M10: 9,051,270 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.1

Radius: 9.4

Gravity: 7.52 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.82 AU - 3.48 AU

Year: 3668 Days

Day: 13.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 24,306,994 km

• M1: 116,836 km (0.11 R)
• M2: 546,930 km (0.049 R)
• M3: 931,995 km (0.074 R)
• M4: 1,382,434 km (0.09 R)
• M5: 2,040,216 km (0.09 R)
• M6: 2,365,591 km (0.065 R)
• M7: 2,825,754 km (0.06 R)
• M8: 3,213,811 km (0.047 R)
• M9: 3,989,775 km (0.068 R)
• M10: 4,644,116 km (0.118 R)
• M11: 6,638,256 km (0.063 R)
• M12: 7,392,379 km (0.12 R)
• M13: 11,684,940 km (0.085 R)
• M14: 12,363,366 km (0.119 R)
• M15: 12,877,534 km (0.118 R)
• M16: 14,972,652 km (0.109 R)
• M17: 15,773,151 km (0.1 R)
• M18: 16,322,324 km (0.102 R)
• M19: 20,988,132 km (0.076 R)
• M20: 23,375,864 km (0.072 R)
• M21: 24,306,961 km (0.111 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: 518 - 15,515 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit