🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.4 AU - 0.64 AU

Year: 238 Days

Day: 39.2 Hours

Environment

Temp: -115 °C

Axial Tilt: 20.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,014,395 km

• M1: 169,046 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.7

Radius: 13.5

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.63 AU - 0.85 AU

Year: 405 Days

Day: 7.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,014,395 km

• M1: 167,849 km (0.068 R)
• M2: 607,218 km (0.108 R)
• M3: 1,159,383 km (0.085 R)
• M4: 1,718,281 km (0.101 R)
• M5: 2,437,697 km (0.117 R)
• M6: 3,220,094 km (0.107 R)
• M7: 3,730,223 km (0.072 R)
• M8: 4,177,221 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.7

Radius: 10

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.81 AU - 1.23 AU

Year: 655 Days

Day: 6.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,014,395 km

• M1: 124,316 km (0.065 R)
• M2: 445,802 km (0.114 R)
• M3: 840,890 km (0.096 R)
• M4: 1,397,543 km (0.113 R)
• M5: 2,395,660 km (0.103 R)
• M6: 2,724,925 km (0.12 R)
• M7: 3,534,848 km (0.082 R)
• M8: 4,442,159 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.4

Radius: 14.9

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.81 AU - 1.31 AU

Year: 694 Days

Day: 11.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,014,395 km

• M1: 185,352 km (0.112 R)
• M2: 674,537 km (0.069 R)
• M3: 1,149,360 km (0.087 R)
• M4: 1,628,672 km (0.07 R)
• M5: 2,162,138 km (0.082 R)
• M6: 3,541,430 km (0.029 R)
• M7: 4,423,310 km (0.098 R)
• M8: 5,089,619 km (0.092 R)
• M9: 6,025,653 km (0.079 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 954.2

Radius: 3.5

Gravity: 77.89 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 7.51 AU - 11.49 AU

Year: 18617 Days

Day: 21.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 81,014,395 km

• M1: 44,580 km (0.075 R)
• M2: 225,594 km (0.079 R)
• M3: 859,589 km (0.084 R)
• M4: 1,003,203 km (0.066 R)
• M5: 1,354,758 km (0.067 R)
• M6: 2,251,747 km (0.076 R)
• M7: 2,874,673 km (0.109 R)
• M8: 3,426,689 km (0.119 R)
• M9: 3,821,328 km (0.036 R)
• M10: 4,773,070 km (0.093 R)
• M11: 5,186,857 km (0.118 R)
• M12: 9,281,052 km (0.09 R)
• M13: 10,286,798 km (0.083 R)
• M14: 11,494,502 km (0.112 R)
• M15: 11,693,467 km (0.099 R)
• M16: 12,166,645 km (0.068 R)
• M17: 17,533,170 km (0.111 R)
• M18: 21,269,526 km (0.067 R)
• M19: 22,075,559 km (0.106 R)
• M20: 25,279,347 km (0.066 R)
• M21: 28,658,015 km (0.097 R)
• M22: 40,117,063 km (0.089 R)
• M23: 56,550,239 km (0.117 R)
• M24: 58,678,718 km (0.083 R)
• M25: 65,383,395 km (0.032 R)
• M26: 65,805,261 km (0.04 R)
• M27: 77,425,126 km (0.094 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 308 - 10,817 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit