🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.5

Radius: 8.4

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.62 AU - 0.76 AU

Year: 389 Days

Day: 9 Hours

Environment

Temp: -166 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,684,801 km

• M1: 104,419 km (0.108 R)
• M2: 377,884 km (0.105 R)
• M3: 685,009 km (0.119 R)
• M4: 1,265,598 km (0.099 R)
• M5: 1,683,574 km (0.098 R)
• M6: 2,121,896 km (0.114 R)
• M7: 2,594,925 km (0.097 R)
• M8: 3,038,333 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.5

Radius: 9.6

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.18 AU - 1.6 AU

Year: 1112 Days

Day: 13.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,684,801 km

• M1: 119,379 km (0.065 R)
• M2: 514,317 km (0.074 R)
• M3: 900,280 km (0.096 R)
• M4: 1,303,895 km (0.087 R)
• M5: 1,826,740 km (0.046 R)
• M6: 2,164,083 km (0.041 R)
• M7: 2,724,028 km (0.09 R)
• M8: 3,264,674 km (0.109 R)
• M9: 3,750,419 km (0.028 R)
• M10: 4,149,845 km (0.094 R)
• M11: 4,489,881 km (0.084 R)
• M12: 4,811,666 km (0.116 R)
• M13: 5,442,071 km (0.085 R)
• M14: 5,746,353 km (0.119 R)
• M15: 6,344,894 km (0.111 R)
• M16: 7,467,327 km (0.103 R)
• M17: 8,206,640 km (0.049 R)
• M18: 8,827,022 km (0.082 R)
• M19: 9,771,583 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.8

Radius: 9.7

Gravity: 9.88 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.18 AU - 1.92 AU

Year: 1309 Days

Day: 10.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,684,801 km

• M1: 120,725 km (0.074 R)
• M2: 434,582 km (0.076 R)
• M3: 747,989 km (0.072 R)
• M4: 1,089,820 km (0.104 R)
• M5: 1,775,278 km (0.057 R)
• M6: 2,162,437 km (0.109 R)
• M7: 2,605,546 km (0.104 R)
• M8: 3,020,531 km (0.081 R)
• M9: 3,658,865 km (0.04 R)
• M10: 4,180,961 km (0.097 R)
• M11: 4,953,634 km (0.113 R)
• M12: 6,359,854 km (0.051 R)
• M13: 7,037,682 km (0.087 R)
• M14: 8,072,301 km (0.074 R)
• M15: 9,081,189 km (0.102 R)
• M16: 10,272,287 km (0.115 R)
• M17: 10,645,684 km (0.083 R)
• M18: 11,312,142 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805

Radius: 14.6

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.05 AU - 3.35 AU

Year: 3009 Days

Day: 13.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 163.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,684,801 km

• M1: 186,399 km (0.086 R)
• M2: 697,724 km (0.031 R)
• M3: 1,815,370 km (0.077 R)
• M4: 2,290,044 km (0.118 R)
• M5: 3,404,997 km (0.077 R)
• M6: 4,420,617 km (0.038 R)
• M7: 5,629,966 km (0.097 R)
• M8: 6,571,685 km (0.113 R)
• M9: 7,811,253 km (0.104 R)
• M10: 12,156,173 km (0.082 R)
• M11: 13,394,096 km (0.116 R)
• M12: 14,463,571 km (0.092 R)
• M13: 16,607,757 km (0.111 R)
• M14: 17,442,813 km (0.031 R)
• M15: 19,683,938 km (0.067 R)
• M16: 22,044,742 km (0.088 R)
• M17: 22,511,787 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.8

Radius: 11.4

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.21 AU - 3.25 AU

Year: 3059 Days

Day: 10.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 54,684,801 km

• M1: 141,819 km (0.087 R)
• M2: 1,187,358 km (0.058 R)
• M3: 1,881,193 km (0.046 R)
• M4: 2,367,087 km (0.103 R)
• M5: 2,759,632 km (0.06 R)
• M6: 4,395,933 km (0.057 R)
• M7: 5,496,375 km (0.086 R)
• M8: 6,071,729 km (0.072 R)
• M9: 6,456,644 km (0.105 R)
• M10: 6,944,333 km (0.084 R)
• M11: 7,502,184 km (0.106 R)
• M12: 8,114,039 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.2

Radius: 9.3

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 4.87 AU - 5.05 AU

Year: 7492 Days

Day: 11.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 54,684,801 km

• M1: 115,639 km (0.113 R)
• M2: 550,071 km (0.06 R)
• M3: 935,884 km (0.116 R)
• M4: 1,251,386 km (0.074 R)
• M5: 1,626,129 km (0.064 R)
• M6: 2,884,097 km (0.094 R)
• M7: 3,414,571 km (0.107 R)
• M8: 4,331,158 km (0.075 R)
• M9: 4,778,754 km (0.117 R)
• M10: 5,433,095 km (0.086 R)
• M11: 5,986,009 km (0.039 R)
• M12: 6,408,174 km (0.027 R)
• M13: 6,712,157 km (0.117 R)
• M14: 7,644,601 km (0.074 R)
• M15: 8,103,118 km (0.041 R)
• M16: 8,458,862 km (0.055 R)
• M17: 9,117,242 km (0.03 R)
• M18: 11,152,671 km (0.119 R)
• M19: 15,368,638 km (0.054 R)
• M20: 15,670,527 km (0.111 R)
• M21: 19,537,931 km (0.091 R)
• M22: 21,203,853 km (0.106 R)
• M23: 22,727,657 km (0.055 R)
• M24: 23,516,486 km (0.116 R)
• M25: 28,094,031 km (0.099 R)
• M26: 30,496,274 km (0.057 R)
• M27: 31,942,736 km (0.109 R)
• M28: 32,732,613 km (0.114 R)
• M29: 34,248,637 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 75.9

Radius: 7.3

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 5.58 AU - 8.3 AU

Year: 12400 Days

Day: 16.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,684,801 km

• M1: 146,307 km (0.106 R)
• M2: 489,783 km (0.084 R)
• M3: 887,415 km (0.115 R)
• M4: 1,410,558 km (0.09 R)
• M5: 1,637,648 km (0.107 R)
• M6: 2,225,867 km (0.097 R)
• M7: 2,568,895 km (0.115 R)
• M8: 7,000,432 km (0.073 R)
• M9: 7,263,126 km (0.075 R)
• M10: 7,600,918 km (0.101 R)
• M11: 10,865,443 km (0.088 R)
• M12: 14,799,269 km (0.092 R)
• M13: 17,589,418 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 398.1

Radius: 6.1

Gravity: 10.7 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 7.55 AU - 8.89 AU

Year: 15984 Days

Day: 16 Hours

Environment

Temp: -230 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 54,684,801 km

• M1: 76,295 km (0.084 R)
• M2: 291,267 km (0.076 R)
• M3: 588,817 km (0.054 R)
• M4: 1,103,733 km (0.039 R)
• M5: 1,831,976 km (0.056 R)
• M6: 4,121,721 km (0.062 R)
• M7: 6,422,237 km (0.068 R)
• M8: 7,932,876 km (0.113 R)
• M9: 11,348,494 km (0.111 R)
• M10: 12,168,740 km (0.096 R)
• M11: 13,090,711 km (0.04 R)
• M12: 15,492,056 km (0.111 R)
• M13: 15,990,816 km (0.061 R)
• M14: 16,870,601 km (0.058 R)
• M15: 21,319,641 km (0.093 R)
• M16: 25,006,630 km (0.1 R)
• M17: 26,694,693 km (0.107 R)
• M18: 33,968,889 km (0.059 R)
• M19: 34,327,775 km (0.112 R)
• M20: 37,544,578 km (0.092 R)
• M21: 41,227,528 km (0.119 R)
• M22: 46,307,273 km (0.05 R)
• M23: 49,608,300 km (0.102 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 323 - 17,959 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit