🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.8

Radius: 8.1

Gravity: 9.39 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.51 AU - 0.71 AU

Year: 329 Days

Day: 12.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 143.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 64,778,957 km

• M1: 100,679 km (0.059 R)
• M2: 404,961 km (0.067 R)
• M3: 784,940 km (0.083 R)
• M4: 1,069,924 km (0.12 R)
• M5: 1,473,689 km (0.113 R)
• M6: 1,771,239 km (0.095 R)
• M7: 2,148,973 km (0.101 R)
• M8: 2,516,236 km (0.099 R)
• M9: 3,267,965 km (0.049 R)
• M10: 3,731,719 km (0.071 R)
• M11: 3,985,736 km (0.108 R)
• M12: 4,303,332 km (0.092 R)
• M13: 4,624,070 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 671

Radius: 12.1

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.7 AU - 0.86 AU

Year: 476 Days

Day: 14.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 64,778,957 km

• M1: 151,393 km (0.1 R)
• M2: 552,615 km (0.069 R)
• M3: 1,012,778 km (0.034 R)
• M4: 1,514,230 km (0.118 R)
• M5: 1,927,569 km (0.053 R)
• M6: 3,687,588 km (0.106 R)
• M7: 4,580,836 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684

Radius: 13.9

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.89 AU - 0.95 AU

Year: 609 Days

Day: 6.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,778,957 km

• M1: 172,935 km (0.063 R)
• M2: 609,163 km (0.037 R)
• M3: 1,078,301 km (0.103 R)
• M4: 1,564,495 km (0.086 R)
• M5: 2,284,060 km (0.114 R)
• M6: 2,787,457 km (0.082 R)
• M7: 3,676,966 km (0.076 R)
• M8: 4,270,122 km (0.055 R)
• M9: 4,910,251 km (0.04 R)
• M10: 6,113,018 km (0.097 R)
• M11: 6,682,537 km (0.11 R)
• M12: 7,180,399 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536.4

Radius: 12.5

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.87 AU - 1.01 AU

Year: 629 Days

Day: 14.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,778,957 km

• M1: 155,432 km (0.069 R)
• M2: 560,693 km (0.09 R)
• M3: 1,219,522 km (0.059 R)
• M4: 1,706,313 km (0.072 R)
• M5: 2,128,778 km (0.101 R)
• M6: 2,705,777 km (0.098 R)
• M7: 3,299,231 km (0.098 R)
• M8: 3,759,843 km (0.104 R)
• M9: 4,292,711 km (0.084 R)
• M10: 5,136,592 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 592.1

Radius: 9.5

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.82 AU - 1.22 AU

Year: 711 Days

Day: 7.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 64,778,957 km

• M1: 118,182 km (0.073 R)
• M2: 490,382 km (0.042 R)
• M3: 1,437,636 km (0.087 R)
• M4: 1,878,800 km (0.109 R)
• M5: 2,277,328 km (0.102 R)
• M6: 2,765,616 km (0.117 R)
• M7: 3,145,594 km (0.068 R)
• M8: 3,711,074 km (0.066 R)
• M9: 4,875,095 km (0.097 R)
• M10: 5,523,004 km (0.103 R)
• M11: 6,031,188 km (0.084 R)
• M12: 6,673,561 km (0.115 R)
• M13: 7,294,392 km (0.049 R)
• M14: 7,836,834 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.2

Radius: 9.4

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.88 AU - 2.94 AU

Year: 2582 Days

Day: 13.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,778,957 km

• M1: 116,836 km (0.106 R)
• M2: 518,805 km (0.116 R)
• M3: 813,214 km (0.12 R)
• M4: 1,109,867 km (0.058 R)
• M5: 2,065,947 km (0.114 R)
• M6: 3,580,326 km (0.088 R)
• M7: 4,337,441 km (0.107 R)
• M8: 5,034,866 km (0.113 R)
• M9: 6,332,927 km (0.098 R)
• M10: 8,615,042 km (0.078 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620

Radius: 8.8

Gravity: 8.01 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 3.29 AU - 5.11 AU

Year: 5941 Days

Day: 14.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,778,957 km

• M1: 109,506 km (0.096 R)
• M2: 416,181 km (0.096 R)
• M3: 738,116 km (0.082 R)
• M4: 1,485,806 km (0.089 R)
• M5: 1,987,707 km (0.105 R)
• M6: 2,634,269 km (0.117 R)
• M7: 3,226,527 km (0.057 R)
• M8: 5,632,509 km (0.119 R)
• M9: 5,937,539 km (0.079 R)
• M10: 6,285,953 km (0.086 R)
• M11: 8,198,263 km (0.119 R)
• M12: 8,630,750 km (0.088 R)
• M13: 8,913,939 km (0.062 R)
• M14: 10,020,365 km (0.09 R)
• M15: 15,429,674 km (0.11 R)
• M16: 19,328,643 km (0.116 R)
• M17: 20,308,061 km (0.09 R)
• M18: 20,665,899 km (0.1 R)
• M19: 21,246,937 km (0.083 R)
• M20: 26,548,835 km (0.051 R)
• M21: 27,496,089 km (0.119 R)
• M22: 30,379,887 km (0.07 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 378.2

Radius: 6

Gravity: 10.51 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 8.53 AU - 11.05 AU

Year: 21144 Days

Day: 15.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 64,778,957 km

• M1: 74,649 km (0.107 R)
• M2: 532,568 km (0.108 R)
• M3: 1,588,281 km (0.059 R)
• M4: 1,946,867 km (0.063 R)
• M5: 3,068,402 km (0.055 R)
• M6: 3,854,090 km (0.109 R)
• M7: 5,400,633 km (0.053 R)
• M8: 7,874,982 km (0.074 R)
• M9: 8,162,658 km (0.099 R)
• M10: 9,653,251 km (0.064 R)
• M11: 9,872,113 km (0.106 R)
• M12: 12,699,214 km (0.1 R)
• M13: 13,161,920 km (0.055 R)
• M14: 14,261,464 km (0.069 R)
• M15: 19,797,932 km (0.117 R)
• M16: 25,349,359 km (0.102 R)
• M17: 30,780,211 km (0.116 R)
• M18: 36,938,108 km (0.068 R)
• M19: 38,975,631 km (0.12 R)
• M20: 39,951,607 km (0.09 R)
• M21: 43,124,877 km (0.116 R)
• M22: 43,421,530 km (0.062 R)
• M23: 48,513,093 km (0.03 R)
• M24: 48,994,799 km (0.107 R)
• M25: 54,160,712 km (0.041 R)
• M26: 58,400,914 km (0.093 R)
• M27: 59,128,558 km (0.067 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 506 - 13,528 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit