🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.37

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.58 AU - 0.76 AU

Year: 349 Days

Day: 42.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 10.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 462.6

Radius: 14.3

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.67 AU - 0.81 AU

Year: 405 Days

Day: 7 Hours

Environment

Temp: -137 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,792,280 km

• M1: 177,872 km (0.11 R)
• M2: 643,121 km (0.08 R)
• M3: 1,154,447 km (0.115 R)
• M4: 1,741,170 km (0.114 R)
• M5: 2,309,342 km (0.077 R)
• M6: 2,765,317 km (0.051 R)
• M7: 3,303,570 km (0.05 R)
• M8: 3,948,486 km (0.109 R)
• M9: 4,621,527 km (0.053 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.9

Radius: 12.6

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.84 AU - 1.06 AU

Year: 589 Days

Day: 6.1 Hours

Environment

Temp: -152 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,792,280 km

• M1: 157,078 km (0.029 R)
• M2: 775,515 km (0.073 R)
• M3: 1,218,325 km (0.117 R)
• M4: 1,753,736 km (0.109 R)
• M5: 2,164,681 km (0.089 R)
• M6: 2,593,129 km (0.086 R)
• M7: 3,320,774 km (0.06 R)
• M8: 3,733,514 km (0.096 R)
• M9: 4,507,982 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.7

Radius: 13.7

Gravity: 0.06 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.23 AU - 1.33 AU

Year: 921 Days

Day: 11.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 58,792,280 km

• M1: 171,140 km (0.062 R)
• M2: 616,493 km (0.052 R)
• M3: 1,144,573 km (0.082 R)
• M4: 1,742,516 km (0.09 R)
• M5: 2,426,777 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883.3

Radius: 10.4

Gravity: 8.17 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.19 AU - 1.85 AU

Year: 1192 Days

Day: 12.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,792,280 km

• M1: 129,402 km (0.097 R)
• M2: 484,099 km (0.083 R)
• M3: 882,478 km (0.091 R)
• M4: 1,538,165 km (0.101 R)
• M5: 2,518,779 km (0.049 R)
• M6: 3,051,946 km (0.111 R)
• M7: 3,643,007 km (0.026 R)
• M8: 4,165,852 km (0.12 R)
• M9: 4,661,470 km (0.082 R)
• M10: 5,553,372 km (0.064 R)
• M11: 6,062,903 km (0.059 R)
• M12: 7,252,954 km (0.079 R)
• M13: 7,781,034 km (0.108 R)
• M14: 8,419,967 km (0.071 R)
• M15: 9,582,791 km (0.032 R)
• M16: 10,251,792 km (0.104 R)
• M17: 10,883,544 km (0.075 R)
• M18: 11,330,543 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.7

Radius: 14.2

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 2.42 AU - 2.7 AU

Year: 2604 Days

Day: 10.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,792,280 km

• M1: 176,525 km (0.115 R)
• M2: 708,944 km (0.043 R)
• M3: 1,505,254 km (0.103 R)
• M4: 2,319,515 km (0.064 R)
• M5: 3,173,270 km (0.098 R)
• M6: 3,833,745 km (0.092 R)
• M7: 4,520,399 km (0.112 R)
• M8: 5,099,791 km (0.031 R)
• M9: 5,779,115 km (0.102 R)
• M10: 6,573,330 km (0.09 R)
• M11: 7,260,134 km (0.033 R)
• M12: 8,947,449 km (0.091 R)
• M13: 9,828,580 km (0.067 R)
• M14: 10,651,219 km (0.078 R)
• M15: 12,433,977 km (0.049 R)
• M16: 12,909,249 km (0.068 R)
• M17: 15,719,146 km (0.106 R)
• M18: 17,373,848 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.9

Radius: 9.3

Gravity: 6.83 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.35 AU - 3.02 AU

Year: 2790 Days

Day: 6.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 58,792,280 km

• M1: 116,238 km (0.041 R)
• M2: 452,085 km (0.117 R)
• M3: 817,852 km (0.098 R)
• M4: 1,612,665 km (0.093 R)
• M5: 1,903,932 km (0.118 R)
• M6: 2,407,927 km (0.101 R)
• M7: 2,949,920 km (0.119 R)
• M8: 3,797,093 km (0.115 R)
• M9: 4,298,396 km (0.049 R)
• M10: 4,664,162 km (0.084 R)
• M11: 5,409,160 km (0.041 R)
• M12: 6,588,440 km (0.087 R)
• M13: 7,075,830 km (0.096 R)
• M14: 7,434,266 km (0.08 R)
• M15: 7,867,651 km (0.084 R)
• M16: 8,616,389 km (0.074 R)
• M17: 8,956,275 km (0.095 R)
• M18: 9,993,287 km (0.116 R)
• M19: 12,176,668 km (0.108 R)
• M20: 12,518,799 km (0.111 R)
• M21: 12,955,624 km (0.111 R)
• M22: 14,138,644 km (0.063 R)
• M23: 14,660,292 km (0.066 R)
• M24: 15,392,275 km (0.106 R)
• M25: 18,285,946 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 552.8

Radius: 3.3

Gravity: 50.76 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 6.94 AU - 9.6 AU

Year: 15121 Days

Day: 15.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 58,792,280 km

• M1: 41,289 km (0.048 R)
• M2: 167,101 km (0.053 R)
• M3: 894,446 km (0.11 R)
• M4: 1,966,165 km (0.032 R)
• M5: 2,309,642 km (0.109 R)
• M6: 2,474,648 km (0.103 R)
• M7: 5,722,418 km (0.074 R)
• M8: 6,497,933 km (0.079 R)
• M9: 8,787,678 km (0.076 R)
• M10: 9,395,345 km (0.109 R)
• M11: 9,976,532 km (0.081 R)
• M12: 15,879,515 km (0.072 R)
• M13: 16,931,786 km (0.068 R)
• M14: 17,553,515 km (0.115 R)
• M15: 18,677,743 km (0.083 R)
• M16: 19,849,244 km (0.096 R)
• M17: 20,540,087 km (0.119 R)
• M18: 23,655,911 km (0.053 R)
• M19: 26,240,813 km (0.11 R)
• M20: 28,028,956 km (0.078 R)
• M21: 30,803,548 km (0.099 R)
• M22: 31,379,649 km (0.054 R)
• M23: 35,741,026 km (0.107 R)
• M24: 36,249,210 km (0.055 R)
• M25: 43,732,993 km (0.09 R)
• M26: 48,994,799 km (0.097 R)
• M27: 54,999,358 km (0.062 R)
• M28: 56,187,913 km (0.104 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 472 - 10,954 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit