🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.98

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.59 AU - 0.75 AU

Year: 194 Days

Day: 32.9 Hours

Environment

Temp: 205 °C

Axial Tilt: 48.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.11 AU - 2.71 AU

Year: 1321 Days

Day: 46.7 Hours

Environment

Temp: -80 °C

Axial Tilt: 34.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.7

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 3.69 AU - 5.61 AU

Year: 3541 Days

Day: 25 Hours

Environment

Temp: -124 °C

Axial Tilt: 31.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 108,630,290 km

• M1: 43,683 km (0.086 R)
• M2: 1,431,951 km (0.093 R)

Asteroid Belt

Center: 11.25 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Ice Giant

Semi-Major Axis: 17.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 14

Radius: 3

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 15.11 AU - 20.57 AU

Year: 26607 Days

Day: 22.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 108,630,290 km

• M1: 86,318 km (0.053 R)
• M2: 1,170,903 km (0.117 R)
• M3: 1,574,069 km (0.045 R)
• M4: 2,177,696 km (0.116 R)
• M5: 10,095,762 km (0.078 R)
• M6: 14,404,181 km (0.118 R)
• M7: 20,182,698 km (0.105 R)

Planet 5 - Ice Giant

Semi-Major Axis: 20.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 721

Radius: 5.8

Gravity: 21.43 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 16.81 AU - 24.59 AU

Year: 33255 Days

Day: 24.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 108,630,290 km

• M1: 184,005 km (0.069 R)
• M2: 431,291 km (0.036 R)
• M3: 816,804 km (0.115 R)
• M4: 1,181,374 km (0.115 R)
• M5: 1,610,720 km (0.058 R)
• M6: 1,914,853 km (0.049 R)
• M7: 2,208,813 km (0.118 R)
• M8: 2,944,984 km (0.12 R)
• M9: 3,730,373 km (0.073 R)
• M10: 4,153,435 km (0.117 R)
• M11: 5,179,377 km (0.091 R)
• M12: 5,660,634 km (0.116 R)
• M13: 5,935,445 km (0.109 R)
• M14: 7,177,407 km (0.12 R)
• M15: 7,719,549 km (0.076 R)
• M16: 9,131,753 km (0.083 R)
• M17: 10,030,537 km (0.097 R)
• M18: 10,638,802 km (0.101 R)
• M19: 10,987,066 km (0.097 R)
• M20: 13,723,510 km (0.065 R)
• M21: 18,630,620 km (0.052 R)
• M22: 22,939,337 km (0.095 R)
• M23: 23,638,109 km (0.107 R)
• M24: 26,195,784 km (0.036 R)
• M25: 28,663,550 km (0.109 R)
• M26: 30,578,254 km (0.083 R)
• M27: 32,868,747 km (0.117 R)
• M28: 34,508,339 km (0.11 R)
• M29: 35,579,610 km (0.12 R)
• M30: 36,045,457 km (0.066 R)
• M31: 37,949,539 km (0.119 R)
• M32: 60,807,794 km (0.086 R)
• M33: 62,594,143 km (0.089 R)
• M34: 63,500,107 km (0.052 R)
• M35: 71,066,169 km (0.119 R)
• M36: 72,052,169 km (0.051 R)
• M37: 72,300,053 km (0.084 R)
• M38: 73,047,294 km (0.046 R)
• M39: 76,602,338 km (0.099 R)
• M40: 83,234,310 km (0.108 R)
• M41: 100,381,069 km (0.079 R)

Kuiper Belt

Range: 31.1 - 46.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 488 - 17,834 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit