🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.02

Radius: 1.74

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.51 AU - 0.73 AU

Year: 188 Days

Day: 33.1 Hours

Environment

Temp: 134 °C

Axial Tilt: 9.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 71,595,367 km

• M1: 56,548 km (0.043 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.74

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.81 AU - 1.01 AU

Year: 334 Days

Day: 42.2 Hours

Environment

Temp: 8 °C

Axial Tilt: 0.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 2.29 AU - 3.27 AU

Year: 1785 Days

Day: 23 Hours

Environment

Temp: -102 °C

Axial Tilt: 32.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.23

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 3.13 AU - 4.07 AU

Year: 2630 Days

Day: 38.3 Hours

Environment

Temp: -137 °C

Axial Tilt: 37 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.93 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.3

Radius: 14.1

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.73 AU - 4.77 AU

Year: 3373 Days

Day: 9.2 Hours

Environment

Temp: -134 °C

Axial Tilt: 159.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,595,367 km

• M1: 177,124 km (0.066 R)
• M2: 1,042,099 km (0.109 R)
• M3: 1,542,952 km (0.103 R)
• M4: 2,099,457 km (0.116 R)
• M5: 3,162,349 km (0.069 R)
• M6: 3,846,311 km (0.115 R)
• M7: 5,056,408 km (0.107 R)
• M8: 5,512,083 km (0.084 R)
• M9: 6,190,958 km (0.114 R)
• M10: 7,171,872 km (0.074 R)
• M11: 7,848,503 km (0.092 R)
• M12: 9,708,603 km (0.114 R)
• M13: 13,121,379 km (0.112 R)
• M14: 13,646,168 km (0.1 R)
• M15: 14,284,353 km (0.099 R)
• M16: 15,409,927 km (0.105 R)
• M17: 19,693,961 km (0.119 R)
• M18: 20,193,319 km (0.111 R)
• M19: 20,893,736 km (0.085 R)
• M20: 21,676,283 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.5

Radius: 8.2

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 5.38 AU - 5.54 AU

Year: 4912 Days

Day: 8.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,595,367 km

• M1: 103,971 km (0.081 R)
• M2: 448,046 km (0.092 R)
• M3: 762,949 km (0.075 R)
• M4: 1,218,624 km (0.047 R)
• M5: 1,903,932 km (0.046 R)
• M6: 2,631,277 km (0.092 R)
• M7: 3,172,672 km (0.12 R)
• M8: 3,767,772 km (0.077 R)
• M9: 4,373,195 km (0.059 R)
• M10: 6,554,631 km (0.114 R)
• M11: 8,003,037 km (0.114 R)
• M12: 9,204,159 km (0.119 R)
• M13: 10,974,201 km (0.116 R)
• M14: 15,221,733 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764

Radius: 11.3

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 6.71 AU - 10.67 AU

Year: 9863 Days

Day: 13.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,595,367 km

• M1: 140,472 km (0.048 R)
• M2: 504,743 km (0.1 R)
• M3: 954,883 km (0.104 R)
• M4: 1,388,567 km (0.086 R)
• M5: 1,826,440 km (0.035 R)
• M6: 3,727,381 km (0.044 R)
• M7: 4,155,380 km (0.077 R)
• M8: 5,110,413 km (0.099 R)
• M9: 6,097,310 km (0.115 R)
• M10: 7,287,959 km (0.114 R)
• M11: 13,196,926 km (0.045 R)
• M12: 16,274,453 km (0.026 R)
• M13: 18,319,306 km (0.052 R)
• M14: 23,626,740 km (0.057 R)
• M15: 25,665,160 km (0.061 R)
• M16: 26,825,292 km (0.095 R)
• M17: 31,053,077 km (0.118 R)
• M18: 33,268,173 km (0.106 R)
• M19: 43,456,536 km (0.068 R)
• M20: 46,223,498 km (0.097 R)
• M21: 47,506,150 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 471.2

Radius: 4

Gravity: 29.45 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 13.5 AU - 16.18 AU

Year: 22010 Days

Day: 17 Hours

Environment

Temp: -206 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 71,595,367 km

• M1: 49,816 km (0.056 R)
• M2: 376,987 km (0.089 R)
• M3: 548,276 km (0.101 R)
• M4: 693,536 km (0.025 R)
• M5: 875,596 km (0.104 R)
• M6: 1,336,507 km (0.058 R)
• M7: 1,603,540 km (0.041 R)
• M8: 2,528,503 km (0.097 R)
• M9: 3,064,961 km (0.036 R)
• M10: 3,528,864 km (0.068 R)
• M11: 3,762,686 km (0.109 R)
• M12: 3,944,746 km (0.069 R)
• M13: 5,126,420 km (0.096 R)
• M14: 5,580,898 km (0.027 R)
• M15: 5,857,953 km (0.111 R)
• M16: 6,227,759 km (0.069 R)
• M17: 6,569,291 km (0.071 R)
• M18: 6,744,770 km (0.088 R)
• M19: 8,833,006 km (0.035 R)
• M20: 10,822,209 km (0.045 R)
• M21: 11,253,201 km (0.07 R)
• M22: 14,154,053 km (0.044 R)
• M23: 19,879,911 km (0.099 R)
• M24: 20,432,376 km (0.084 R)
• M25: 22,945,321 km (0.076 R)
• M26: 24,067,754 km (0.1 R)
• M27: 31,580,709 km (0.066 R)
• M28: 35,458,585 km (0.115 R)
• M29: 36,543,917 km (0.086 R)
• M30: 37,931,438 km (0.071 R)
• M31: 43,216,880 km (0.116 R)
• M32: 43,524,154 km (0.115 R)
• M33: 47,162,823 km (0.085 R)
• M34: 47,651,859 km (0.086 R)
• M35: 53,256,543 km (0.053 R)
• M36: 55,037,954 km (0.068 R)
• M37: 56,125,531 km (0.073 R)
• M38: 58,343,768 km (0.094 R)
• M39: 58,907,303 km (0.081 R)
• M40: 62,560,782 km (0.09 R)
• M41: 63,943,964 km (0.073 R)
• M42: 68,632,362 km (0.093 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 205 - 17,917 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit