🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.62

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.57 AU - 0.57 AU

Year: 164 Days

Day: 16.9 Hours

Environment

Temp: 146 °C

Axial Tilt: 34.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.48 AU - 0.78 AU

Year: 190 Days

Day: 14.4 Hours

Environment

Temp: 143 °C

Axial Tilt: 20.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 93,603,666 km

• M1: 74,649 km (0.105 R)
• M2: 191,784 km (0.106 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.78 AU - 0.96 AU

Year: 309 Days

Day: 23.2 Hours

Environment

Temp: 27 °C

Axial Tilt: 44.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 93,603,666 km

• M1: 43,234 km (0.107 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.88 AU - 1.04 AU

Year: 358 Days

Day: 28.1 Hours

Environment

Temp: 31 °C

Axial Tilt: 31.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.2

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.03 AU - 2.85 AU

Year: 1451 Days

Day: 25.6 Hours

Environment

Temp: -107 °C

Axial Tilt: 20.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 10.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.1

Radius: 14.4

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 8.79 AU - 12.71 AU

Year: 13422 Days

Day: 7 Hours

Environment

Temp: -192 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 93,603,666 km

• M1: 179,069 km (0.109 R)
• M2: 1,030,281 km (0.073 R)
• M3: 1,577,809 km (0.092 R)
• M4: 2,487,962 km (0.097 R)
• M5: 3,478,599 km (0.068 R)
• M6: 4,397,729 km (0.049 R)
• M7: 5,950,405 km (0.098 R)
• M8: 6,642,295 km (0.118 R)
• M9: 7,185,934 km (0.083 R)
• M10: 7,717,305 km (0.11 R)
• M11: 9,044,837 km (0.055 R)
• M12: 10,468,111 km (0.076 R)
• M13: 13,265,591 km (0.104 R)
• M14: 13,817,607 km (0.101 R)
• M15: 15,633,875 km (0.078 R)
• M16: 16,811,659 km (0.067 R)
• M17: 17,677,980 km (0.117 R)
• M18: 19,033,038 km (0.09 R)
• M19: 20,782,136 km (0.06 R)
• M20: 21,444,107 km (0.115 R)
• M21: 22,291,130 km (0.1 R)
• M22: 24,415,420 km (0.029 R)
• M23: 29,166,050 km (0.113 R)
• M24: 35,781,268 km (0.114 R)
• M25: 39,562,204 km (0.119 R)
• M26: 41,354,087 km (0.11 R)
• M27: 44,278,277 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 542.3

Radius: 4.8

Gravity: 23.54 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 18.35 AU - 18.95 AU

Year: 30670 Days

Day: 15.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 93,603,666 km

• M1: 77,043 km (0.116 R)
• M2: 242,349 km (0.031 R)
• M3: 877,392 km (0.117 R)
• M4: 1,097,001 km (0.111 R)
• M5: 1,258,268 km (0.115 R)
• M6: 1,647,521 km (0.061 R)
• M7: 2,461,184 km (0.111 R)
• M8: 2,661,945 km (0.034 R)
• M9: 2,983,430 km (0.106 R)
• M10: 3,671,880 km (0.046 R)
• M11: 4,534,162 km (0.037 R)
• M12: 5,694,443 km (0.039 R)
• M13: 6,046,447 km (0.092 R)
• M14: 8,082,623 km (0.117 R)
• M15: 8,358,631 km (0.118 R)
• M16: 14,871,524 km (0.119 R)
• M17: 15,708,076 km (0.108 R)
• M18: 18,595,913 km (0.099 R)
• M19: 19,665,089 km (0.087 R)
• M20: 21,607,168 km (0.079 R)
• M21: 27,943,087 km (0.116 R)
• M22: 28,194,262 km (0.073 R)
• M23: 29,214,220 km (0.028 R)
• M24: 33,966,346 km (0.033 R)
• M25: 34,252,377 km (0.061 R)
• M26: 35,413,107 km (0.092 R)
• M27: 35,855,019 km (0.096 R)
• M28: 40,638,860 km (0.05 R)
• M29: 46,355,892 km (0.115 R)
• M30: 47,239,417 km (0.101 R)
• M31: 55,305,734 km (0.105 R)
• M32: 61,871,286 km (0.092 R)
• M33: 66,898,522 km (0.046 R)
• M34: 74,095,377 km (0.098 R)
• M35: 83,339,777 km (0.085 R)
• M36: 85,963,873 km (0.097 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 431 - 15,263 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit