🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.57 AU - 0.91 AU

Year: 225 Days

Day: 42.3 Hours

Environment

Temp: 171 °C

Axial Tilt: 25.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.74 AU - 1.08 AU

Year: 307 Days

Day: 45.8 Hours

Environment

Temp: 117 °C

Axial Tilt: 3.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 102,822,554 km

• M1: 244,742 km (0.064 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.81 AU - 2.47 AU

Year: 1105 Days

Day: 22.5 Hours

Environment

Temp: -68 °C

Axial Tilt: 10.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Ice Giant

Semi-Major Axis: 13.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 731.9

Radius: 7.7

Gravity: 12.34 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 13.43 AU - 14.47 AU

Year: 18398 Days

Day: 21.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 102,822,554 km

• M1: 104,419 km (0.079 R)
• M2: 1,402,181 km (0.086 R)
• M3: 2,263,715 km (0.093 R)
• M4: 2,688,573 km (0.118 R)
• M5: 3,847,956 km (0.069 R)
• M6: 5,086,178 km (0.102 R)
• M7: 5,462,267 km (0.113 R)
• M8: 13,775,271 km (0.065 R)
• M9: 14,655,954 km (0.089 R)
• M10: 18,207,706 km (0.119 R)
• M11: 18,732,645 km (0.096 R)
• M12: 19,088,090 km (0.085 R)
• M13: 25,407,104 km (0.113 R)
• M14: 27,293,683 km (0.027 R)
• M15: 52,246,009 km (0.045 R)
• M16: 64,699,583 km (0.08 R)
• M17: 67,157,775 km (0.117 R)
• M18: 68,620,094 km (0.075 R)
• M19: 72,042,146 km (0.086 R)

Planet 5 - Ice Giant

Semi-Major Axis: 17.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 978

Radius: 6.4

Gravity: 23.88 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 13.58 AU - 21.82 AU

Year: 26294 Days

Day: 20.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 102,822,554 km

• M1: 79,736 km (0.055 R)
• M2: 300,093 km (0.071 R)
• M3: 500,405 km (0.096 R)
• M4: 1,004,101 km (0.081 R)
• M5: 1,704,219 km (0.077 R)
• M6: 2,310,988 km (0.094 R)
• M7: 3,873,538 km (0.103 R)
• M8: 4,522,493 km (0.11 R)
• M9: 6,127,379 km (0.066 R)
• M10: 6,411,615 km (0.053 R)
• M11: 6,804,160 km (0.11 R)
• M12: 7,370,089 km (0.059 R)
• M13: 8,891,499 km (0.103 R)
• M14: 10,883,395 km (0.099 R)
• M15: 11,090,737 km (0.095 R)
• M16: 13,155,038 km (0.047 R)
• M17: 13,628,516 km (0.12 R)
• M18: 14,693,353 km (0.088 R)
• M19: 20,543,528 km (0.09 R)
• M20: 21,721,910 km (0.087 R)
• M21: 26,015,668 km (0.04 R)
• M22: 37,950,885 km (0.105 R)
• M23: 40,048,397 km (0.061 R)
• M24: 42,221,905 km (0.101 R)
• M25: 43,424,223 km (0.098 R)
• M26: 45,717,558 km (0.114 R)
• M27: 46,439,069 km (0.112 R)
• M28: 47,351,616 km (0.119 R)
• M29: 51,509,240 km (0.096 R)
• M30: 72,266,393 km (0.103 R)
• M31: 73,984,973 km (0.12 R)
• M32: 84,331,461 km (0.108 R)
• M33: 89,286,292 km (0.11 R)
• M34: 90,130,473 km (0.047 R)
• M35: 94,431,562 km (0.091 R)
• M36: 97,373,703 km (0.059 R)

Kuiper Belt

Range: 31.1 - 51.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 487 - 20,344 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit