🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.45 AU - 0.73 AU

Year: 162 Days

Day: 13 Hours

Environment

Temp: 162 °C

Axial Tilt: 9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.74

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.97 AU - 1.47 AU

Year: 480 Days

Day: 27.7 Hours

Environment

Temp: 4 °C

Axial Tilt: 49.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Asteroid Belt

Center: 7.08 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Ice Giant

Semi-Major Axis: 12.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 319.4

Radius: 5.3

Gravity: 11.37 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 12.29 AU - 13.59 AU

Year: 16592 Days

Day: 15.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 46,803,380 km

• M1: 70,610 km (0.112 R)
• M2: 267,182 km (0.093 R)
• M3: 724,054 km (0.084 R)
• M4: 1,045,091 km (0.099 R)
• M5: 1,295,817 km (0.113 R)
• M6: 1,556,566 km (0.114 R)
• M7: 1,802,954 km (0.118 R)
• M8: 2,110,826 km (0.045 R)
• M9: 3,321,222 km (0.1 R)
• M10: 3,573,594 km (0.036 R)
• M11: 4,467,591 km (0.112 R)
• M12: 5,229,792 km (0.049 R)
• M13: 5,398,838 km (0.108 R)
• M14: 6,376,160 km (0.109 R)
• M15: 8,721,855 km (0.067 R)
• M16: 13,199,469 km (0.058 R)
• M17: 24,096,776 km (0.08 R)
• M18: 24,283,774 km (0.055 R)
• M19: 27,409,172 km (0.114 R)
• M20: 27,817,724 km (0.092 R)
• M21: 28,230,465 km (0.091 R)
• M22: 32,017,086 km (0.07 R)
• M23: 34,444,162 km (0.093 R)
• M24: 39,142,881 km (0.095 R)
• M25: 45,665,947 km (0.075 R)
• M26: 48,734,199 km (0.101 R)
• M27: 49,635,526 km (0.085 R)

Planet 4 - Ice Giant

Semi-Major Axis: 13.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 183.7

Radius: 4.4

Gravity: 9.49 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 10.88 AU - 17.08 AU

Year: 18632 Days

Day: 21.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 46,803,380 km

• M1: 54,753 km (0.109 R)
• M2: 406,757 km (0.061 R)
• M3: 601,533 km (0.111 R)
• M4: 793,916 km (0.083 R)
• M5: 1,037,611 km (0.077 R)
• M6: 1,329,626 km (0.074 R)
• M7: 2,163,933 km (0.072 R)
• M8: 4,400,421 km (0.119 R)
• M9: 4,846,672 km (0.113 R)
• M10: 5,257,168 km (0.081 R)
• M11: 6,858,165 km (0.108 R)
• M12: 7,539,284 km (0.088 R)
• M13: 11,968,129 km (0.113 R)
• M14: 16,366,007 km (0.116 R)
• M15: 19,698,000 km (0.098 R)
• M16: 22,929,015 km (0.077 R)
• M17: 23,191,260 km (0.066 R)
• M18: 26,114,403 km (0.105 R)
• M19: 32,021,424 km (0.075 R)
• M20: 40,262,621 km (0.102 R)
• M21: 44,731,110 km (0.076 R)

Kuiper Belt

Range: 30.8 - 54.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 184 - 12,859 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit