🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.3

Radius: 14

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.63 AU - 0.85 AU

Year: 439 Days

Day: 5.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 28,960,500 km

• M1: 174,132 km (0.114 R)
• M2: 759,209 km (0.085 R)
• M3: 1,207,704 km (0.112 R)
• M4: 1,920,238 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 492.4

Radius: 13.8

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.87 AU - 1.29 AU

Year: 775 Days

Day: 6.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,960,500 km

• M1: 171,589 km (0.087 R)
• M2: 631,303 km (0.093 R)
• M3: 1,075,010 km (0.099 R)
• M4: 1,511,836 km (0.082 R)
• M5: 2,181,586 km (0.065 R)
• M6: 3,067,804 km (0.113 R)
• M7: 4,182,457 km (0.087 R)
• M8: 4,825,429 km (0.096 R)
• M9: 5,266,743 km (0.056 R)
• M10: 5,809,633 km (0.097 R)
• M11: 6,714,700 km (0.032 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893

Radius: 8.5

Gravity: 12.36 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.12 AU - 1.24 AU

Year: 885 Days

Day: 14.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 28,960,500 km

• M1: 105,766 km (0.1 R)
• M2: 421,268 km (0.116 R)
• M3: 774,319 km (0.099 R)
• M4: 1,399,787 km (0.077 R)
• M5: 1,790,088 km (0.063 R)
• M6: 2,072,379 km (0.116 R)
• M7: 2,841,612 km (0.078 R)
• M8: 3,214,858 km (0.056 R)
• M9: 3,605,458 km (0.044 R)
• M10: 4,092,848 km (0.091 R)
• M11: 5,064,935 km (0.11 R)
• M12: 6,249,152 km (0.095 R)
• M13: 6,789,499 km (0.115 R)
• M14: 7,683,347 km (0.043 R)
• M15: 9,325,183 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.7

Radius: 11.6

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.25 AU - 1.49 AU

Year: 1107 Days

Day: 8.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 28,960,500 km

• M1: 144,512 km (0.089 R)
• M2: 554,859 km (0.086 R)
• M3: 1,068,877 km (0.1 R)
• M4: 1,430,754 km (0.065 R)
• M5: 2,006,855 km (0.06 R)
• M6: 2,582,059 km (0.11 R)
• M7: 3,910,189 km (0.063 R)
• M8: 4,883,323 km (0.112 R)
• M9: 5,532,877 km (0.058 R)
• M10: 6,560,016 km (0.073 R)
• M11: 7,328,201 km (0.098 R)
• M12: 7,758,594 km (0.089 R)
• M13: 8,307,619 km (0.114 R)
• M14: 8,855,745 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.7

Radius: 14.3

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.2 AU - 1.58 AU

Year: 1131 Days

Day: 9.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 28,960,500 km

• M1: 178,620 km (0.102 R)
• M2: 777,011 km (0.089 R)
• M3: 1,337,555 km (0.111 R)
• M4: 1,961,228 km (0.086 R)
• M5: 2,545,857 km (0.101 R)
• M6: 3,188,529 km (0.109 R)
• M7: 4,682,563 km (0.094 R)
• M8: 5,452,693 km (0.041 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.3

Radius: 9.4

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.73 AU - 1.73 AU

Year: 1571 Days

Day: 10.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 28,960,500 km

• M1: 116,836 km (0.114 R)
• M2: 467,493 km (0.115 R)
• M3: 871,408 km (0.116 R)
• M4: 1,256,473 km (0.106 R)
• M5: 1,559,259 km (0.114 R)
• M6: 1,857,856 km (0.09 R)
• M7: 2,285,855 km (0.092 R)
• M8: 2,697,698 km (0.072 R)
• M9: 3,699,705 km (0.119 R)
• M10: 4,145,207 km (0.09 R)
• M11: 6,132,914 km (0.054 R)
• M12: 6,779,925 km (0.089 R)
• M13: 7,243,678 km (0.048 R)
• M14: 7,751,862 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 612.5

Radius: 12.1

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.91 AU - 2.93 AU

Year: 2599 Days

Day: 9.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 28,960,500 km

• M1: 150,495 km (0.065 R)
• M2: 538,403 km (0.104 R)
• M3: 992,133 km (0.082 R)
• M4: 1,602,792 km (0.116 R)
• M5: 2,639,505 km (0.062 R)
• M6: 3,137,067 km (0.091 R)
• M7: 4,001,145 km (0.054 R)
• M8: 4,574,703 km (0.112 R)
• M9: 5,063,439 km (0.079 R)
• M10: 5,537,814 km (0.104 R)
• M11: 6,548,796 km (0.106 R)
• M12: 6,969,017 km (0.106 R)
• M13: 8,403,960 km (0.111 R)
• M14: 8,867,264 km (0.03 R)
• M15: 9,665,518 km (0.101 R)
• M16: 10,064,047 km (0.106 R)
• M17: 11,246,319 km (0.097 R)
• M18: 13,749,241 km (0.092 R)
• M19: 14,161,234 km (0.073 R)
• M20: 14,676,150 km (0.118 R)
• M21: 15,447,177 km (0.097 R)
• M22: 17,228,140 km (0.108 R)
• M23: 17,977,625 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.2

Radius: 13.4

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.55 AU - 3.57 AU

Year: 4636 Days

Day: 10.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 28,960,500 km

• M1: 166,652 km (0.104 R)
• M2: 710,440 km (0.086 R)
• M3: 1,501,065 km (0.067 R)
• M4: 2,044,853 km (0.07 R)
• M5: 2,512,496 km (0.078 R)
• M6: 3,376,723 km (0.06 R)
• M7: 6,137,103 km (0.12 R)
• M8: 8,885,366 km (0.09 R)
• M9: 9,376,795 km (0.109 R)
• M10: 10,842,255 km (0.117 R)
• M11: 11,485,825 km (0.039 R)
• M12: 12,805,428 km (0.11 R)
• M13: 13,894,650 km (0.113 R)
• M14: 14,414,054 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 139.7

Radius: 4

Gravity: 8.73 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 4.93 AU - 7.27 AU

Year: 10399 Days

Day: 16.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 28,960,500 km

• M1: 49,816 km (0.105 R)
• M2: 215,571 km (0.118 R)
• M3: 557,850 km (0.04 R)
• M4: 711,936 km (0.101 R)
• M5: 1,051,374 km (0.076 R)
• M6: 1,376,300 km (0.119 R)
• M7: 1,661,284 km (0.104 R)
• M8: 2,042,310 km (0.057 R)
• M9: 2,253,542 km (0.079 R)
• M10: 2,529,251 km (0.114 R)
• M11: 2,719,540 km (0.118 R)
• M12: 3,795,298 km (0.073 R)
• M13: 3,952,825 km (0.085 R)
• M14: 4,091,352 km (0.066 R)
• M15: 4,526,682 km (0.066 R)
• M16: 5,661,382 km (0.085 R)
• M17: 8,706,147 km (0.074 R)
• M18: 10,885,639 km (0.101 R)
• M19: 11,435,710 km (0.117 R)
• M20: 11,717,702 km (0.093 R)
• M21: 12,393,436 km (0.095 R)
• M22: 13,928,310 km (0.066 R)
• M23: 15,528,259 km (0.104 R)
• M24: 18,310,630 km (0.096 R)
• M25: 19,684,537 km (0.096 R)
• M26: 20,157,415 km (0.079 R)
• M27: 20,430,880 km (0.106 R)
• M28: 21,055,452 km (0.09 R)
• M29: 21,196,074 km (0.118 R)
• M30: 21,692,738 km (0.101 R)
• M31: 24,993,915 km (0.072 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 240 - 18,673 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit