🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.11

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.51 AU - 0.55 AU

Year: 245 Days

Day: 33.7 Hours

Environment

Temp: -130 °C

Axial Tilt: 6.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 44,753,224 km

• M1: 62,233 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.8

Radius: 12.7

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.87 AU - 0.89 AU

Year: 525 Days

Day: 10.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,753,224 km

• M1: 157,975 km (0.109 R)
• M2: 739,612 km (0.037 R)
• M3: 1,395,000 km (0.114 R)
• M4: 2,174,405 km (0.108 R)
• M5: 2,586,846 km (0.092 R)
• M6: 3,794,999 km (0.105 R)
• M7: 4,594,300 km (0.075 R)
• M8: 5,115,948 km (0.094 R)
• M9: 5,873,063 km (0.083 R)
• M10: 6,450,511 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.6

Radius: 15

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.89 AU - 0.99 AU

Year: 579 Days

Day: 9.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 127.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,753,224 km

• M1: 186,549 km (0.094 R)
• M2: 821,891 km (0.038 R)
• M3: 1,351,916 km (0.106 R)
• M4: 1,916,947 km (0.116 R)
• M5: 2,703,533 km (0.07 R)
• M6: 3,367,149 km (0.103 R)
• M7: 4,162,860 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.7

Radius: 12.6

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.84 AU - 1.26 AU

Year: 684 Days

Day: 14.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,753,224 km

• M1: 156,928 km (0.089 R)
• M2: 634,145 km (0.044 R)
• M3: 1,373,757 km (0.049 R)
• M4: 2,194,152 km (0.072 R)
• M5: 2,607,042 km (0.113 R)
• M6: 3,516,448 km (0.066 R)
• M7: 3,949,085 km (0.087 R)
• M8: 4,446,797 km (0.101 R)
• M9: 5,314,016 km (0.094 R)
• M10: 6,694,206 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.9

Radius: 8.6

Gravity: 6.33 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.19 AU - 1.65 AU

Year: 1076 Days

Day: 10.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,753,224 km

• M1: 106,962 km (0.096 R)
• M2: 484,697 km (0.1 R)
• M3: 996,322 km (0.067 R)
• M4: 1,457,682 km (0.119 R)
• M5: 1,901,987 km (0.097 R)
• M6: 2,260,723 km (0.109 R)
• M7: 2,883,649 km (0.118 R)
• M8: 3,249,415 km (0.088 R)
• M9: 3,765,079 km (0.078 R)
• M10: 4,042,733 km (0.115 R)
• M11: 4,417,625 km (0.112 R)
• M12: 4,923,266 km (0.101 R)
• M13: 5,218,423 km (0.107 R)
• M14: 6,112,719 km (0.063 R)
• M15: 6,410,867 km (0.116 R)
• M16: 7,604,209 km (0.102 R)
• M17: 7,974,614 km (0.085 R)
• M18: 8,382,717 km (0.114 R)
• M19: 8,885,515 km (0.112 R)
• M20: 9,408,210 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.3

Radius: 10.1

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.64 AU - 1.72 AU

Year: 1385 Days

Day: 13 Hours

Environment

Temp: -172 °C

Axial Tilt: 101.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 44,753,224 km

• M1: 127,158 km (0.062 R)
• M2: 1,440,328 km (0.088 R)
• M3: 1,782,608 km (0.08 R)
• M4: 2,860,610 km (0.097 R)
• M5: 4,483,448 km (0.082 R)
• M6: 5,051,172 km (0.068 R)
• M7: 5,543,349 km (0.106 R)
• M8: 5,917,344 km (0.119 R)
• M9: 8,858,438 km (0.096 R)
• M10: 9,399,982 km (0.101 R)
• M11: 9,993,587 km (0.093 R)
• M12: 10,675,304 km (0.037 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398

Radius: 9.7

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.86 AU - 1.96 AU

Year: 1678 Days

Day: 15 Hours

Environment

Temp: -196 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,753,224 km

• M1: 120,875 km (0.11 R)
• M2: 433,086 km (0.057 R)
• M3: 981,811 km (0.099 R)
• M4: 1,347,877 km (0.113 R)
• M5: 1,728,454 km (0.087 R)
• M6: 2,202,829 km (0.051 R)
• M7: 2,532,842 km (0.068 R)
• M8: 3,048,206 km (0.104 R)
• M9: 3,444,940 km (0.069 R)
• M10: 4,253,516 km (0.116 R)
• M11: 4,963,807 km (0.113 R)
• M12: 7,625,303 km (0.104 R)
• M13: 8,529,323 km (0.098 R)
• M14: 11,049,748 km (0.057 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.9

Radius: 14.3

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 3.81 AU - 6.05 AU

Year: 6960 Days

Day: 10.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 44,753,224 km

• M1: 177,872 km (0.087 R)
• M2: 690,245 km (0.047 R)
• M3: 1,368,821 km (0.065 R)
• M4: 2,100,952 km (0.088 R)
• M5: 3,235,353 km (0.094 R)
• M6: 4,548,523 km (0.118 R)
• M7: 5,127,916 km (0.106 R)
• M8: 6,330,832 km (0.118 R)
• M9: 6,869,235 km (0.091 R)
• M10: 7,956,512 km (0.057 R)
• M11: 9,427,658 km (0.111 R)
• M12: 10,083,794 km (0.11 R)
• M13: 10,770,000 km (0.115 R)
• M14: 12,847,465 km (0.102 R)
• M15: 23,516,785 km (0.043 R)
• M16: 26,985,511 km (0.086 R)
• M17: 28,890,640 km (0.084 R)
• M18: 33,073,845 km (0.11 R)
• M19: 35,926,527 km (0.104 R)
• M20: 36,721,789 km (0.085 R)
• M21: 39,058,658 km (0.093 R)
• M22: 41,368,898 km (0.095 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.9

Radius: 11.4

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 5.49 AU - 5.95 AU

Year: 8698 Days

Day: 11.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 44,753,224 km

• M1: 142,268 km (0.083 R)
• M2: 503,995 km (0.069 R)
• M3: 944,112 km (0.038 R)
• M4: 1,395,150 km (0.094 R)
• M5: 1,789,041 km (0.073 R)
• M6: 2,609,136 km (0.117 R)
• M7: 3,105,353 km (0.116 R)
• M8: 4,020,144 km (0.089 R)
• M9: 5,785,398 km (0.109 R)
• M10: 6,708,417 km (0.087 R)
• M11: 8,273,809 km (0.12 R)
• M12: 8,936,378 km (0.094 R)
• M13: 9,350,765 km (0.076 R)
• M14: 10,119,099 km (0.056 R)
• M15: 12,224,390 km (0.074 R)
• M16: 13,084,279 km (0.107 R)
• M17: 13,679,828 km (0.099 R)
• M18: 14,045,594 km (0.078 R)
• M19: 15,312,688 km (0.102 R)
• M20: 18,662,634 km (0.075 R)
• M21: 19,725,078 km (0.093 R)
• M22: 24,470,173 km (0.11 R)
• M23: 25,010,071 km (0.093 R)
• M24: 25,927,555 km (0.113 R)
• M25: 28,221,190 km (0.038 R)
• M26: 31,064,447 km (0.057 R)
• M27: 32,017,385 km (0.068 R)
• M28: 37,909,447 km (0.058 R)
• M29: 40,355,821 km (0.073 R)
• M30: 40,857,422 km (0.092 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 411 - 13,057 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit