🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.55 AU - 0.85 AU

Year: 219 Days

Day: 44.2 Hours

Environment

Temp: 128 °C

Axial Tilt: 28.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.61

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.98 AU - 1.14 AU

Year: 409 Days

Day: 30.9 Hours

Environment

Temp: 14 °C

Axial Tilt: 37 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 73,411,293 km

• M1: 109,506 km (0.042 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.69 AU - 1.75 AU

Year: 845 Days

Day: 17.2 Hours

Environment

Temp: -63 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 73,411,293 km

• M1: 52,658 km (0.092 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.8 AU - 2.38 AU

Year: 1132 Days

Day: 33.3 Hours

Environment

Temp: -82 °C

Axial Tilt: 22.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.71 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Ice Giant

Semi-Major Axis: 13.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 516.8

Radius: 7.9

Gravity: 8.28 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 11.76 AU - 14.88 AU

Year: 18217 Days

Day: 22.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 73,411,293 km

• M1: 107,411 km (0.117 R)
• M2: 483,650 km (0.094 R)
• M3: 1,555,668 km (0.086 R)
• M4: 2,391,621 km (0.087 R)
• M5: 4,351,802 km (0.05 R)
• M6: 5,484,707 km (0.086 R)
• M7: 8,872,201 km (0.053 R)
• M8: 12,778,501 km (0.117 R)
• M9: 18,528,893 km (0.113 R)
• M10: 18,952,853 km (0.078 R)
• M11: 19,383,396 km (0.117 R)
• M12: 22,581,350 km (0.045 R)
• M13: 24,660,012 km (0.109 R)
• M14: 26,008,936 km (0.034 R)
• M15: 28,966,337 km (0.107 R)
• M16: 33,748,681 km (0.098 R)
• M17: 35,021,610 km (0.107 R)
• M18: 37,934,130 km (0.097 R)
• M19: 51,035,762 km (0.071 R)
• M20: 51,701,623 km (0.039 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 717

Radius: 3.7

Gravity: 52.37 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 10.71 AU - 16.23 AU

Year: 18526 Days

Day: 21.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 73,411,293 km

• M1: 46,076 km (0.049 R)
• M2: 196,272 km (0.102 R)
• M3: 445,951 km (0.031 R)
• M4: 598,391 km (0.071 R)
• M5: 1,035,068 km (0.117 R)
• M6: 1,151,604 km (0.034 R)
• M7: 2,405,235 km (0.111 R)
• M8: 2,853,879 km (0.054 R)
• M9: 2,980,738 km (0.055 R)
• M10: 3,702,248 km (0.045 R)
• M11: 4,298,246 km (0.091 R)
• M12: 4,955,878 km (0.057 R)
• M13: 5,365,926 km (0.096 R)
• M14: 6,687,025 km (0.117 R)
• M15: 8,415,778 km (0.066 R)
• M16: 8,783,489 km (0.095 R)
• M17: 9,663,873 km (0.086 R)
• M18: 11,856,978 km (0.11 R)
• M19: 14,066,389 km (0.088 R)
• M20: 14,960,984 km (0.101 R)
• M21: 20,287,117 km (0.06 R)
• M22: 20,757,004 km (0.118 R)
• M23: 23,523,966 km (0.089 R)
• M24: 29,775,362 km (0.097 R)
• M25: 39,035,320 km (0.118 R)
• M26: 40,942,843 km (0.101 R)
• M27: 41,092,142 km (0.109 R)
• M28: 41,241,739 km (0.115 R)
• M29: 42,604,726 km (0.075 R)
• M30: 42,758,063 km (0.094 R)
• M31: 47,529,039 km (0.037 R)
• M32: 49,194,961 km (0.074 R)
• M33: 52,642,892 km (0.107 R)
• M34: 53,351,238 km (0.111 R)
• M35: 55,514,423 km (0.114 R)
• M36: 57,174,661 km (0.098 R)
• M37: 60,207,458 km (0.09 R)
• M38: 61,959,548 km (0.051 R)
• M39: 66,179,555 km (0.085 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 446 - 11,546 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit