🌌 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: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.58 AU - 0.66 AU

Year: 320 Days

Day: 19 Hours

Environment

Temp: -128 °C

Axial Tilt: 32.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 0.93 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940

Radius: 13.4

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.06 AU - 1.4 AU

Year: 895 Days

Day: 6.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,008,582 km

• M1: 166,802 km (0.074 R)
• M2: 1,060,200 km (0.089 R)
• M3: 1,773,034 km (0.103 R)
• M4: 2,299,319 km (0.053 R)
• M5: 2,740,035 km (0.113 R)
• M6: 3,858,129 km (0.055 R)
• M7: 4,826,327 km (0.096 R)
• M8: 5,319,102 km (0.084 R)
• M9: 6,450,959 km (0.101 R)
• M10: 6,956,002 km (0.111 R)
• M11: 7,512,057 km (0.081 R)
• M12: 7,993,762 km (0.101 R)
• M13: 8,415,329 km (0.062 R)
• M14: 9,711,146 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.8

Radius: 12.5

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.43 AU - 1.89 AU

Year: 1403 Days

Day: 11.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,008,582 km

• M1: 155,432 km (0.057 R)
• M2: 683,064 km (0.103 R)
• M3: 1,080,396 km (0.117 R)
• M4: 1,931,009 km (0.1 R)
• M5: 2,363,796 km (0.118 R)
• M6: 2,754,246 km (0.11 R)
• M7: 3,262,281 km (0.067 R)
• M8: 3,832,548 km (0.081 R)
• M9: 4,562,436 km (0.114 R)
• M10: 5,112,657 km (0.119 R)
• M11: 5,619,345 km (0.065 R)
• M12: 6,299,716 km (0.102 R)
• M13: 6,882,998 km (0.088 R)
• M14: 7,716,408 km (0.093 R)
• M15: 10,225,762 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.4

Radius: 11.8

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.93 AU - 2.09 AU

Year: 1869 Days

Day: 10.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,008,582 km

• M1: 147,803 km (0.072 R)
• M2: 539,001 km (0.096 R)
• M3: 1,011,282 km (0.112 R)
• M4: 1,410,409 km (0.058 R)
• M5: 2,092,276 km (0.078 R)
• M6: 2,648,182 km (0.039 R)
• M7: 5,710,600 km (0.08 R)
• M8: 6,203,973 km (0.067 R)
• M9: 6,624,194 km (0.072 R)
• M10: 9,591,019 km (0.112 R)
• M11: 12,552,757 km (0.119 R)
• M12: 12,946,499 km (0.084 R)
• M13: 14,347,782 km (0.09 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 728.1

Radius: 7.2

Gravity: 14.05 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 7.09 AU - 7.65 AU

Year: 13125 Days

Day: 21.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 47,008,582 km

• M1: 89,759 km (0.062 R)
• M2: 333,902 km (0.092 R)
• M3: 572,212 km (0.041 R)
• M4: 1,083,388 km (0.059 R)
• M5: 2,411,218 km (0.118 R)
• M6: 3,177,309 km (0.114 R)
• M7: 3,808,911 km (0.037 R)
• M8: 4,037,048 km (0.119 R)
• M9: 4,616,141 km (0.108 R)
• M10: 5,009,584 km (0.11 R)
• M11: 6,285,803 km (0.115 R)
• M12: 8,610,704 km (0.08 R)
• M13: 9,672,699 km (0.106 R)
• M14: 10,933,061 km (0.119 R)
• M15: 12,548,120 km (0.12 R)
• M16: 13,379,734 km (0.098 R)
• M17: 15,152,619 km (0.09 R)
• M18: 16,468,182 km (0.106 R)
• M19: 18,257,672 km (0.063 R)
• M20: 25,388,853 km (0.111 R)
• M21: 26,098,097 km (0.093 R)
• M22: 28,305,264 km (0.099 R)
• M23: 31,091,524 km (0.118 R)
• M24: 32,610,241 km (0.098 R)
• M25: 35,921,142 km (0.104 R)
• M26: 36,943,643 km (0.107 R)
• M27: 38,116,939 km (0.064 R)
• M28: 41,089,449 km (0.072 R)
• M29: 43,922,533 km (0.114 R)
• M30: 50,132,490 km (0.093 R)
• M31: 51,892,809 km (0.098 R)
• M32: 53,694,117 km (0.085 R)
• M33: 57,247,814 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 118.2

Radius: 7.9

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 8.38 AU - 13.28 AU

Year: 23380 Days

Day: 22 Hours

Environment

Temp: -231 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,008,582 km

• M1: 98,435 km (0.108 R)
• M2: 345,421 km (0.039 R)
• M3: 746,793 km (0.117 R)
• M4: 1,592,619 km (0.061 R)
• M5: 1,893,610 km (0.089 R)
• M6: 2,161,689 km (0.103 R)
• M7: 6,032,684 km (0.109 R)
• M8: 6,580,661 km (0.107 R)
• M9: 7,526,119 km (0.095 R)
• M10: 8,425,053 km (0.106 R)
• M11: 8,923,663 km (0.081 R)
• M12: 12,569,213 km (0.096 R)
• M13: 14,144,030 km (0.093 R)
• M14: 14,461,327 km (0.115 R)
• M15: 15,778,237 km (0.104 R)
• M16: 16,050,954 km (0.11 R)
• M17: 22,531,384 km (0.066 R)
• M18: 24,660,760 km (0.045 R)
• M19: 25,963,159 km (0.079 R)
• M20: 31,632,320 km (0.09 R)
• M21: 33,168,541 km (0.113 R)
• M22: 35,682,084 km (0.115 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 532 - 16,681 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit