🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.84

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.54 AU - 0.72 AU

Year: 184 Days

Day: 45.9 Hours

Environment

Temp: 200 °C

Axial Tilt: 12.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 64,078,006 km

• M1: 226,940 km (0.087 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.82 AU - 1.22 AU

Year: 378 Days

Day: 34.2 Hours

Environment

Temp: 24 °C

Axial Tilt: 3.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 64,078,006 km

• M1: 55,501 km (0.103 R)
• M2: 517,908 km (0.088 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.92 AU - 1.24 AU

Year: 412 Days

Day: 30.1 Hours

Environment

Temp: 7 °C

Axial Tilt: 39 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.07

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.09 AU - 1.75 AU

Year: 621 Days

Day: 48 Hours

Environment

Temp: -39 °C

Axial Tilt: 6.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 64,078,006 km

• M1: 50,115 km (0.061 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.1

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 2.01 AU - 2.47 AU

Year: 1231 Days

Day: 24.3 Hours

Environment

Temp: -76 °C

Axial Tilt: 33.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.38 AU - 2.84 AU

Year: 1548 Days

Day: 24.8 Hours

Environment

Temp: -90 °C

Axial Tilt: 16.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 9.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.4

Radius: 12.4

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 8.87 AU - 9.63 AU

Year: 10327 Days

Day: 11 Hours

Environment

Temp: -181 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 64,078,006 km

• M1: 154,235 km (0.113 R)
• M2: 702,212 km (0.108 R)
• M3: 1,193,043 km (0.112 R)
• M4: 1,580,502 km (0.101 R)
• M5: 2,554,084 km (0.077 R)
• M6: 3,437,011 km (0.115 R)
• M7: 3,915,724 km (0.098 R)
• M8: 5,199,274 km (0.055 R)
• M9: 6,014,433 km (0.076 R)
• M10: 7,861,966 km (0.117 R)
• M11: 9,592,365 km (0.083 R)
• M12: 13,579,298 km (0.083 R)
• M13: 15,410,077 km (0.066 R)
• M14: 23,923,542 km (0.107 R)
• M15: 26,918,342 km (0.045 R)
• M16: 27,683,086 km (0.058 R)
• M17: 30,887,323 km (0.118 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.4

Radius: 12.5

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 10.55 AU - 12.69 AU

Year: 14541 Days

Day: 9 Hours

Environment

Temp: -189 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 64,078,006 km

• M1: 155,881 km (0.085 R)
• M2: 545,284 km (0.09 R)
• M3: 958,324 km (0.073 R)
• M4: 1,605,185 km (0.105 R)
• M5: 2,232,299 km (0.108 R)
• M6: 2,835,478 km (0.064 R)
• M7: 3,734,561 km (0.111 R)
• M8: 4,533,863 km (0.119 R)
• M9: 5,475,432 km (0.062 R)
• M10: 6,195,596 km (0.049 R)
• M11: 6,614,470 km (0.076 R)
• M12: 7,905,200 km (0.028 R)
• M13: 11,492,108 km (0.054 R)
• M14: 12,507,579 km (0.109 R)
• M15: 13,523,947 km (0.112 R)
• M16: 15,087,992 km (0.066 R)
• M17: 19,596,124 km (0.043 R)
• M18: 22,155,744 km (0.076 R)
• M19: 22,890,868 km (0.117 R)
• M20: 25,282,190 km (0.102 R)
• M21: 29,958,918 km (0.074 R)
• M22: 32,396,316 km (0.088 R)
• M23: 37,432,379 km (0.11 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.6

Radius: 12.6

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 9.71 AU - 14.05 AU

Year: 15031 Days

Day: 9.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 64,078,006 km

• M1: 156,779 km (0.115 R)
• M2: 626,067 km (0.078 R)
• M3: 1,025,793 km (0.088 R)
• M4: 2,567,548 km (0.109 R)
• M5: 3,627,150 km (0.101 R)
• M6: 4,493,770 km (0.074 R)
• M7: 5,383,728 km (0.104 R)
• M8: 6,026,999 km (0.086 R)
• M9: 9,074,308 km (0.091 R)
• M10: 9,821,399 km (0.113 R)
• M11: 10,609,331 km (0.109 R)
• M12: 11,745,378 km (0.081 R)
• M13: 12,183,849 km (0.098 R)
• M14: 12,829,065 km (0.08 R)
• M15: 13,361,633 km (0.097 R)
• M16: 15,048,499 km (0.102 R)
• M17: 15,641,205 km (0.098 R)
• M18: 17,271,224 km (0.03 R)
• M19: 19,968,922 km (0.056 R)
• M20: 30,782,455 km (0.074 R)
• M21: 33,208,783 km (0.06 R)
• M22: 38,302,141 km (0.115 R)
• M23: 38,990,740 km (0.056 R)
• M24: 45,563,921 km (0.099 R)
• M25: 48,068,638 km (0.076 R)
• M26: 50,498,856 km (0.079 R)
• M27: 51,326,880 km (0.1 R)
• M28: 52,501,223 km (0.092 R)
• M29: 57,378,263 km (0.109 R)
• M30: 60,111,416 km (0.104 R)

Planet 10 - Ice Giant

Semi-Major Axis: 12.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 607.1

Radius: 5.2

Gravity: 22.45 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 12.08 AU - 13.12 AU

Year: 16418 Days

Day: 21.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 64,078,006 km

• M1: 64,776 km (0.066 R)
• M2: 244,144 km (0.042 R)
• M3: 510,727 km (0.106 R)
• M4: 793,766 km (0.093 R)
• M5: 1,324,689 km (0.092 R)
• M6: 1,515,576 km (0.058 R)
• M7: 1,880,894 km (0.114 R)
• M8: 2,323,554 km (0.066 R)
• M9: 2,670,472 km (0.099 R)
• M10: 3,280,981 km (0.094 R)
• M11: 4,069,960 km (0.091 R)
• M12: 6,459,486 km (0.11 R)
• M13: 7,012,101 km (0.111 R)
• M14: 12,619,179 km (0.098 R)
• M15: 16,071,000 km (0.109 R)
• M16: 17,321,788 km (0.059 R)
• M17: 19,145,685 km (0.115 R)
• M18: 19,577,275 km (0.085 R)
• M19: 19,751,706 km (0.078 R)
• M20: 20,911,239 km (0.115 R)
• M21: 24,559,782 km (0.094 R)
• M22: 30,794,123 km (0.063 R)
• M23: 32,350,390 km (0.117 R)
• M24: 48,942,140 km (0.114 R)
• M25: 53,063,562 km (0.119 R)
• M26: 56,170,261 km (0.092 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 453 - 14,258 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit