🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.65 AU - 0.85 AU

Year: 241 Days

Day: 19.8 Hours

Environment

Temp: 180 °C

Axial Tilt: 43.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 111,645,024 km

• M1: 49,218 km (0.116 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.72 AU - 1.18 AU

Year: 343 Days

Day: 35.5 Hours

Environment

Temp: 42 °C

Axial Tilt: 14.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 111,645,024 km

• M1: 169,046 km (0.035 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.86 AU - 1.4 AU

Year: 445 Days

Day: 26.1 Hours

Environment

Temp: -4 °C

Axial Tilt: 157.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 111,645,024 km

• M1: 48,919 km (0.078 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.15 AU - 1.21 AU

Year: 475 Days

Day: 13 Hours

Environment

Temp: -8 °C

Axial Tilt: 36.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.38 AU - 1.82 AU

Year: 751 Days

Day: 14.9 Hours

Environment

Temp: -58 °C

Axial Tilt: 17.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.29

Radius: 0.61

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.88 AU - 3.3 AU

Year: 2014 Days

Day: 47.7 Hours

Environment

Temp: -110 °C

Axial Tilt: 19.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902

Radius: 11.6

Gravity: 6.7 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 4.44 AU - 7.16 AU

Year: 5180 Days

Day: 7.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 111,645,024 km

• M1: 144,212 km (0.093 R)
• M2: 544,237 km (0.088 R)
• M3: 1,424,172 km (0.106 R)
• M4: 1,812,229 km (0.12 R)
• M5: 2,239,630 km (0.037 R)
• M6: 3,018,586 km (0.089 R)
• M7: 3,407,241 km (0.1 R)
• M8: 4,138,475 km (0.111 R)
• M9: 4,971,436 km (0.046 R)
• M10: 5,340,345 km (0.058 R)
• M11: 5,943,972 km (0.034 R)
• M12: 6,693,906 km (0.103 R)
• M13: 9,283,146 km (0.095 R)
• M14: 9,889,466 km (0.113 R)
• M15: 13,270,827 km (0.071 R)
• M16: 13,817,757 km (0.105 R)
• M17: 14,209,404 km (0.11 R)
• M18: 14,781,915 km (0.071 R)
• M19: 18,681,034 km (0.079 R)
• M20: 23,692,264 km (0.064 R)
• M21: 25,404,710 km (0.102 R)
• M22: 28,529,960 km (0.093 R)
• M23: 29,074,645 km (0.114 R)
• M24: 30,561,199 km (0.061 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.1

Radius: 8.6

Gravity: 6.48 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 4.44 AU - 7.16 AU

Year: 5180 Days

Day: 12.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 111,645,024 km

• M1: 107,561 km (0.071 R)
• M2: 410,048 km (0.118 R)
• M3: 707,000 km (0.1 R)
• M4: 1,011,132 km (0.079 R)
• M5: 1,309,430 km (0.111 R)
• M6: 1,618,799 km (0.101 R)
• M7: 2,089,134 km (0.104 R)
• M8: 2,388,330 km (0.106 R)
• M9: 2,681,991 km (0.108 R)
• M10: 3,264,375 km (0.083 R)
• M11: 3,906,599 km (0.102 R)
• M12: 4,680,020 km (0.075 R)
• M13: 5,142,876 km (0.058 R)
• M14: 5,865,284 km (0.072 R)
• M15: 6,160,590 km (0.073 R)
• M16: 6,812,986 km (0.114 R)
• M17: 8,182,405 km (0.084 R)
• M18: 10,917,204 km (0.096 R)
• M19: 11,593,536 km (0.102 R)
• M20: 12,012,709 km (0.116 R)
• M21: 16,194,119 km (0.075 R)
• M22: 17,373,698 km (0.12 R)
• M23: 20,571,652 km (0.044 R)
• M24: 22,740,073 km (0.107 R)
• M25: 23,693,161 km (0.065 R)
• M26: 24,292,749 km (0.103 R)
• M27: 25,288,622 km (0.11 R)
• M28: 25,993,976 km (0.063 R)
• M29: 26,311,573 km (0.053 R)
• M30: 26,873,612 km (0.05 R)

Planet 9 - Gas Giant

Semi-Major Axis: 6.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 139.2

Radius: 14.7

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 5.47 AU - 8.21 AU

Year: 6634 Days

Day: 9.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 111,645,024 km

• M1: 182,809 km (0.11 R)
• M2: 2,068,340 km (0.028 R)
• M3: 2,744,971 km (0.06 R)
• M4: 4,016,104 km (0.116 R)
• M5: 4,819,595 km (0.111 R)
• M6: 5,446,709 km (0.115 R)
• M7: 5,992,592 km (0.103 R)
• M8: 7,410,331 km (0.117 R)
• M9: 8,349,057 km (0.113 R)
• M10: 8,900,176 km (0.12 R)
• M11: 9,365,874 km (0.114 R)
• M12: 10,114,162 km (0.109 R)
• M13: 11,772,904 km (0.115 R)
• M14: 12,600,479 km (0.102 R)
• M15: 13,890,461 km (0.081 R)
• M16: 14,372,017 km (0.053 R)
• M17: 17,388,359 km (0.104 R)
• M18: 19,103,947 km (0.088 R)
• M19: 19,639,956 km (0.06 R)
• M20: 20,555,795 km (0.099 R)
• M21: 21,372,150 km (0.039 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 960.9

Radius: 6.6

Gravity: 22.06 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 18.69 AU - 18.73 AU

Year: 30013 Days

Day: 15.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 111,645,024 km

• M1: 82,129 km (0.092 R)
• M2: 316,100 km (0.109 R)
• M3: 859,440 km (0.12 R)
• M4: 1,335,909 km (0.106 R)
• M5: 2,478,986 km (0.077 R)
• M6: 3,247,471 km (0.067 R)
• M7: 3,703,594 km (0.086 R)
• M8: 4,055,000 km (0.073 R)
• M9: 4,703,207 km (0.094 R)
• M10: 5,158,135 km (0.12 R)
• M11: 6,498,382 km (0.054 R)
• M12: 9,014,169 km (0.077 R)
• M13: 9,979,524 km (0.107 R)
• M14: 12,266,427 km (0.068 R)
• M15: 13,695,386 km (0.094 R)
• M16: 14,280,014 km (0.074 R)
• M17: 15,320,617 km (0.115 R)
• M18: 15,588,397 km (0.117 R)
• M19: 17,551,869 km (0.066 R)
• M20: 24,300,379 km (0.074 R)
• M21: 24,664,799 km (0.105 R)
• M22: 31,289,143 km (0.117 R)
• M23: 33,336,539 km (0.083 R)
• M24: 36,891,134 km (0.077 R)
• M25: 41,376,677 km (0.098 R)
• M26: 43,126,224 km (0.068 R)
• M27: 45,657,569 km (0.087 R)
• M28: 53,024,516 km (0.072 R)
• M29: 57,416,710 km (0.062 R)
• M30: 62,726,387 km (0.036 R)
• M31: 69,080,407 km (0.054 R)
• M32: 73,041,160 km (0.112 R)
• M33: 75,334,197 km (0.1 R)
• M34: 80,063,434 km (0.1 R)
• M35: 81,682,831 km (0.074 R)
• M36: 83,599,628 km (0.1 R)
• M37: 85,546,046 km (0.101 R)
• M38: 96,946,751 km (0.088 R)
• M39: 100,336,189 km (0.106 R)
• M40: 104,442,651 km (0.115 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: 373 - 11,551 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit