🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.04

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.59 AU - 0.75 AU

Year: 349 Days

Day: 25.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 3.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,272,189 km

• M1: 436,377 km (0.043 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.4

Radius: 10.8

Gravity: 7.93 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.65 AU - 0.89 AU

Year: 430 Days

Day: 11.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,272,189 km

• M1: 134,339 km (0.074 R)
• M2: 483,500 km (0.088 R)
• M3: 829,221 km (0.105 R)
• M4: 1,216,231 km (0.118 R)
• M5: 1,897,948 km (0.093 R)
• M6: 2,252,046 km (0.076 R)
• M7: 3,107,746 km (0.112 R)
• M8: 3,629,843 km (0.111 R)
• M9: 4,125,311 km (0.066 R)
• M10: 4,711,435 km (0.068 R)
• M11: 5,268,987 km (0.116 R)
• M12: 6,013,834 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 812.5

Radius: 11.4

Gravity: 6.25 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 4.78 AU - 5.02 AU

Year: 6896 Days

Day: 11.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,272,189 km

• M1: 141,968 km (0.054 R)
• M2: 634,594 km (0.1 R)
• M3: 1,134,401 km (0.096 R)
• M4: 1,508,994 km (0.101 R)
• M5: 2,324,452 km (0.082 R)
• M6: 2,705,627 km (0.099 R)
• M7: 4,398,028 km (0.083 R)
• M8: 6,151,165 km (0.056 R)
• M9: 7,762,334 km (0.08 R)
• M10: 9,366,323 km (0.045 R)
• M11: 11,180,945 km (0.068 R)
• M12: 12,937,822 km (0.11 R)
• M13: 16,068,906 km (0.079 R)
• M14: 17,465,701 km (0.105 R)
• M15: 18,370,020 km (0.075 R)
• M16: 18,725,913 km (0.097 R)
• M17: 20,121,063 km (0.108 R)
• M18: 22,463,167 km (0.064 R)
• M19: 23,952,713 km (0.085 R)
• M20: 25,683,710 km (0.081 R)
• M21: 26,852,668 km (0.11 R)
• M22: 30,373,903 km (0.064 R)
• M23: 33,129,944 km (0.047 R)
• M24: 38,550,174 km (0.091 R)

Planet 4 - Ice Giant

Semi-Major Axis: 8.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 469.9

Radius: 4.6

Gravity: 22.21 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 7.54 AU - 10.36 AU

Year: 17024 Days

Day: 24.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,272,189 km

• M1: 59,540 km (0.058 R)
• M2: 240,853 km (0.087 R)
• M3: 553,512 km (0.081 R)
• M4: 975,677 km (0.11 R)
• M5: 1,634,656 km (0.077 R)
• M6: 2,143,438 km (0.113 R)
• M7: 3,882,065 km (0.072 R)
• M8: 4,844,727 km (0.091 R)
• M9: 5,082,288 km (0.064 R)
• M10: 9,538,959 km (0.118 R)
• M11: 13,194,083 km (0.111 R)
• M12: 14,758,129 km (0.096 R)
• M13: 15,842,265 km (0.12 R)
• M14: 17,133,743 km (0.088 R)
• M15: 19,242,475 km (0.114 R)
• M16: 22,345,584 km (0.079 R)
• M17: 29,971,634 km (0.07 R)
• M18: 32,774,350 km (0.075 R)
• M19: 35,113,313 km (0.09 R)
• M20: 36,002,373 km (0.112 R)
• M21: 45,733,266 km (0.117 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 17,418 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit