🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.71 AU - 1.11 AU

Year: 314 Days

Day: 21.7 Hours

Environment

Temp: 75 °C

Axial Tilt: 27.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.71

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.52 AU - 2.32 AU

Year: 962 Days

Day: 46.2 Hours

Environment

Temp: -67 °C

Axial Tilt: 16.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.58 AU - 2.36 AU

Year: 1000 Days

Day: 23.2 Hours

Environment

Temp: -55 °C

Axial Tilt: 8.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.99

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.03 AU - 2.57 AU

Year: 1261 Days

Day: 33.2 Hours

Environment

Temp: -85 °C

Axial Tilt: 7.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960

Radius: 14.4

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 4.5 AU - 5.9 AU

Year: 4288 Days

Day: 9.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 47,720,501 km

• M1: 179,069 km (0.06 R)
• M2: 737,069 km (0.073 R)
• M3: 1,229,694 km (0.108 R)
• M4: 1,869,525 km (0.102 R)
• M5: 2,441,886 km (0.097 R)
• M6: 3,073,488 km (0.113 R)
• M7: 6,065,296 km (0.103 R)
• M8: 6,696,599 km (0.063 R)
• M9: 7,870,643 km (0.057 R)
• M10: 12,768,777 km (0.083 R)
• M11: 14,569,785 km (0.089 R)
• M12: 16,414,626 km (0.029 R)
• M13: 17,897,291 km (0.053 R)
• M14: 18,868,181 km (0.093 R)
• M15: 22,065,686 km (0.108 R)
• M16: 27,008,699 km (0.075 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 224.7

Radius: 5

Gravity: 8.99 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 10.11 AU - 16.29 AU

Year: 17344 Days

Day: 19.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 47,720,501 km

• M1: 62,233 km (0.037 R)
• M2: 335,548 km (0.105 R)
• M3: 729,290 km (0.051 R)
• M4: 1,053,319 km (0.067 R)
• M5: 1,551,779 km (0.111 R)
• M6: 1,806,245 km (0.104 R)
• M7: 3,468,427 km (0.11 R)
• M8: 4,177,521 km (0.075 R)
• M9: 5,877,700 km (0.1 R)
• M10: 6,421,339 km (0.087 R)
• M11: 6,647,980 km (0.055 R)
• M12: 6,840,961 km (0.065 R)
• M13: 9,505,897 km (0.097 R)
• M14: 12,850,607 km (0.097 R)
• M15: 13,029,975 km (0.033 R)
• M16: 13,393,497 km (0.071 R)
• M17: 14,331,925 km (0.093 R)
• M18: 18,223,713 km (0.107 R)
• M19: 19,140,599 km (0.113 R)
• M20: 20,248,521 km (0.085 R)
• M21: 22,160,681 km (0.076 R)
• M22: 23,116,312 km (0.091 R)
• M23: 25,672,191 km (0.047 R)
• M24: 26,725,809 km (0.116 R)
• M25: 27,018,123 km (0.096 R)
• M26: 29,954,580 km (0.06 R)
• M27: 37,052,251 km (0.052 R)
• M28: 37,537,397 km (0.108 R)
• M29: 40,281,471 km (0.039 R)
• M30: 44,098,909 km (0.114 R)

Kuiper Belt

Range: 30.3 - 50.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 491 - 13,198 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit