🌌 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: 0.88 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.81 AU - 0.95 AU

Year: 313 Days

Day: 27.8 Hours

Environment

Temp: 42 °C

Axial Tilt: 38.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.13

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.71 AU - 1.11 AU

Year: 329 Days

Day: 12.8 Hours

Environment

Temp: 31 °C

Axial Tilt: 28.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 44,878,775 km

• M1: 231,428 km (0.072 R)
• M2: 467,942 km (0.092 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.74 AU - 2.1 AU

Year: 1008 Days

Day: 29.3 Hours

Environment

Temp: -78 °C

Axial Tilt: 33.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.2

Radius: 12.1

Gravity: 6.75 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 3.63 AU - 5.69 AU

Year: 3810 Days

Day: 11.1 Hours

Environment

Temp: -152 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 44,878,775 km

• M1: 163,361 km (0.103 R)
• M2: 758,760 km (0.05 R)
• M3: 1,196,035 km (0.11 R)
• M4: 1,856,061 km (0.044 R)
• M5: 2,562,312 km (0.11 R)
• M6: 3,127,792 km (0.113 R)
• M7: 3,647,495 km (0.079 R)
• M8: 4,413,736 km (0.088 R)
• M9: 5,421,726 km (0.115 R)
• M10: 6,205,320 km (0.032 R)
• M11: 6,672,514 km (0.115 R)
• M12: 9,171,696 km (0.053 R)
• M13: 9,573,665 km (0.112 R)
• M14: 11,624,054 km (0.077 R)
• M15: 13,535,316 km (0.093 R)
• M16: 15,761,931 km (0.113 R)
• M17: 16,457,411 km (0.116 R)
• M18: 18,097,004 km (0.079 R)
• M19: 19,577,574 km (0.119 R)
• M20: 20,585,714 km (0.1 R)
• M21: 24,120,861 km (0.025 R)
• M22: 27,044,901 km (0.111 R)

Planet 5 - Ice Giant

Semi-Major Axis: 15.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 100.7

Radius: 3.6

Gravity: 7.77 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 13.56 AU - 17.9 AU

Year: 23629 Days

Day: 16.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 44,878,775 km

• M1: 44,730 km (0.105 R)
• M2: 162,613 km (0.112 R)
• M3: 337,942 km (0.1 R)
• M4: 548,725 km (0.032 R)
• M5: 841,937 km (0.039 R)
• M6: 1,950,607 km (0.113 R)
• M7: 2,603,302 km (0.114 R)
• M8: 4,759,307 km (0.055 R)
• M9: 5,548,735 km (0.091 R)
• M10: 5,750,542 km (0.063 R)
• M11: 6,097,609 km (0.091 R)
• M12: 6,276,379 km (0.1 R)
• M13: 7,463,438 km (0.108 R)
• M14: 7,709,377 km (0.088 R)
• M15: 9,536,565 km (0.098 R)
• M16: 10,524,509 km (0.11 R)
• M17: 13,833,315 km (0.093 R)
• M18: 18,286,395 km (0.089 R)
• M19: 18,808,192 km (0.115 R)
• M20: 24,404,798 km (0.116 R)
• M21: 27,384,489 km (0.038 R)
• M22: 28,561,674 km (0.111 R)
• M23: 39,463,619 km (0.078 R)
• M24: 39,835,071 km (0.093 R)
• M25: 42,242,250 km (0.057 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 459 - 17,854 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit