🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.8 AU - 0.84 AU

Year: 331 Days

Day: 29.3 Hours

Environment

Temp: -50 °C

Axial Tilt: 4.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,683,608 km

• M1: 310,416 km (0.113 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.96

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.91 AU - 0.95 AU

Year: 400 Days

Day: 14.2 Hours

Environment

Temp: -65 °C

Axial Tilt: 4.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.9

Radius: 1.72

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.86 AU - 1.94 AU

Year: 1169 Days

Day: 14.7 Hours

Environment

Temp: -121 °C

Axial Tilt: 36.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,683,608 km

• M1: 213,327 km (0.042 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1.58 AU - 2.5 AU

Year: 1300 Days

Day: 18.1 Hours

Environment

Temp: -124 °C

Axial Tilt: 6.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162.9

Radius: 14.3

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 3.06 AU - 3.6 AU

Year: 2712 Days

Day: 13.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 157.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,683,608 km

• M1: 177,872 km (0.103 R)
• M2: 804,089 km (0.088 R)
• M3: 1,602,941 km (0.101 R)
• M4: 2,722,083 km (0.058 R)
• M5: 3,545,619 km (0.045 R)
• M6: 4,774,117 km (0.105 R)
• M7: 6,110,026 km (0.073 R)
• M8: 7,038,729 km (0.105 R)
• M9: 11,755,251 km (0.078 R)
• M10: 12,221,548 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.1

Radius: 13

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 5.37 AU - 6.24 AU

Year: 6233 Days

Day: 8.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,683,608 km

• M1: 161,715 km (0.083 R)
• M2: 1,328,429 km (0.113 R)
• M3: 1,822,850 km (0.074 R)
• M4: 2,851,335 km (0.032 R)
• M5: 3,794,400 km (0.112 R)
• M6: 4,258,154 km (0.102 R)
• M7: 5,038,007 km (0.059 R)
• M8: 7,782,979 km (0.081 R)
• M9: 8,425,651 km (0.051 R)
• M10: 8,987,990 km (0.116 R)
• M11: 9,981,170 km (0.056 R)
• M12: 13,251,230 km (0.07 R)
• M13: 14,013,132 km (0.056 R)
• M14: 19,404,639 km (0.096 R)
• M15: 26,197,280 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.1

Radius: 8.4

Gravity: 9.5 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 6.68 AU - 6.94 AU

Year: 7930 Days

Day: 11.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 45,683,608 km

• M1: 104,569 km (0.112 R)
• M2: 370,404 km (0.109 R)
• M3: 1,202,318 km (0.112 R)
• M4: 1,605,933 km (0.078 R)
• M5: 2,265,959 km (0.043 R)
• M6: 5,658,539 km (0.101 R)
• M7: 7,018,235 km (0.073 R)
• M8: 7,754,256 km (0.092 R)
• M9: 11,530,854 km (0.099 R)
• M10: 12,333,896 km (0.094 R)
• M11: 13,002,897 km (0.119 R)
• M12: 13,520,356 km (0.064 R)
• M13: 13,872,809 km (0.052 R)
• M14: 14,413,156 km (0.088 R)
• M15: 16,052,899 km (0.093 R)
• M16: 19,400,450 km (0.086 R)
• M17: 20,923,207 km (0.096 R)
• M18: 21,395,188 km (0.074 R)
• M19: 24,987,781 km (0.097 R)
• M20: 26,421,228 km (0.099 R)
• M21: 27,438,045 km (0.098 R)
• M22: 30,443,765 km (0.111 R)
• M23: 30,745,803 km (0.099 R)
• M24: 31,151,662 km (0.117 R)
• M25: 32,810,852 km (0.058 R)
• M26: 33,877,335 km (0.047 R)
• M27: 37,908,100 km (0.043 R)
• M28: 40,401,149 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 91.5

Radius: 5.9

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 12.11 AU - 17.53 AU

Year: 25458 Days

Day: 19.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 45,683,608 km

• M1: 78,090 km (0.066 R)
• M2: 293,511 km (0.1 R)
• M3: 489,783 km (0.081 R)
• M4: 1,021,903 km (0.074 R)
• M5: 1,803,552 km (0.064 R)
• M6: 2,028,846 km (0.1 R)
• M7: 2,255,038 km (0.062 R)
• M8: 3,125,698 km (0.102 R)
• M9: 3,428,484 km (0.032 R)
• M10: 3,649,290 km (0.034 R)
• M11: 4,147,003 km (0.12 R)
• M12: 8,654,087 km (0.102 R)
• M13: 8,880,728 km (0.099 R)
• M14: 9,974,588 km (0.113 R)
• M15: 10,375,211 km (0.081 R)
• M16: 12,715,071 km (0.06 R)
• M17: 13,305,683 km (0.118 R)
• M18: 14,225,710 km (0.118 R)
• M19: 15,318,822 km (0.068 R)
• M20: 15,517,338 km (0.1 R)
• M21: 21,968,447 km (0.084 R)
• M22: 25,498,359 km (0.072 R)
• M23: 36,997,498 km (0.074 R)
• M24: 40,049,295 km (0.078 R)
• M25: 40,300,470 km (0.063 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 214 - 12,526 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit