🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.8

Radius: 12.8

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.61 AU - 0.71 AU

Year: 370 Days

Day: 13.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,396,639 km

• M1: 159,322 km (0.082 R)
• M2: 584,479 km (0.077 R)
• M3: 1,045,390 km (0.119 R)
• M4: 1,660,686 km (0.114 R)
• M5: 2,429,469 km (0.116 R)
• M6: 2,851,784 km (0.063 R)
• M7: 3,301,475 km (0.076 R)
• M8: 4,200,858 km (0.111 R)
• M9: 4,843,530 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.5

Radius: 13.7

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.75 AU - 0.79 AU

Year: 466 Days

Day: 11 Hours

Environment

Temp: -169 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,396,639 km

• M1: 170,392 km (0.117 R)
• M2: 650,751 km (0.045 R)
• M3: 1,253,630 km (0.109 R)
• M4: 1,694,345 km (0.113 R)
• M5: 2,277,029 km (0.096 R)
• M6: 2,807,952 km (0.106 R)
• M7: 3,421,453 km (0.119 R)
• M8: 4,000,097 km (0.107 R)
• M9: 4,480,007 km (0.102 R)
• M10: 5,922,430 km (0.106 R)
• M11: 6,472,801 km (0.037 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.7

Radius: 8.3

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.72 AU - 0.92 AU

Year: 513 Days

Day: 11.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,396,639 km

• M1: 103,223 km (0.072 R)
• M2: 411,544 km (0.102 R)
• M3: 786,436 km (0.044 R)
• M4: 1,138,589 km (0.055 R)
• M5: 1,434,494 km (0.039 R)
• M6: 1,928,466 km (0.1 R)
• M7: 2,437,099 km (0.091 R)
• M8: 2,810,046 km (0.09 R)
• M9: 3,131,083 km (0.111 R)
• M10: 4,951,839 km (0.092 R)
• M11: 5,246,397 km (0.1 R)
• M12: 5,536,168 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.8

Radius: 9.4

Gravity: 10.69 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.89 AU - 1.07 AU

Year: 670 Days

Day: 10.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,396,639 km

• M1: 118,332 km (0.076 R)
• M2: 464,202 km (0.111 R)
• M3: 871,707 km (0.038 R)
• M4: 1,234,930 km (0.082 R)
• M5: 1,601,146 km (0.101 R)
• M6: 2,001,620 km (0.112 R)
• M7: 2,360,954 km (0.072 R)
• M8: 2,846,698 km (0.079 R)
• M9: 3,197,954 km (0.12 R)
• M10: 3,620,717 km (0.085 R)
• M11: 4,095,840 km (0.117 R)
• M12: 4,495,566 km (0.109 R)
• M13: 5,027,386 km (0.116 R)
• M14: 5,581,347 km (0.087 R)
• M15: 6,134,709 km (0.088 R)
• M16: 7,281,976 km (0.075 R)
• M17: 8,489,829 km (0.044 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.1

Radius: 14.6

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.29 AU - 1.79 AU

Year: 1319 Days

Day: 7.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,396,639 km

• M1: 181,612 km (0.096 R)
• M2: 809,624 km (0.08 R)
• M3: 1,515,277 km (0.052 R)
• M4: 2,005,808 km (0.101 R)
• M5: 2,473,302 km (0.069 R)
• M6: 3,414,123 km (0.082 R)
• M7: 3,879,222 km (0.119 R)
• M8: 6,164,330 km (0.07 R)
• M9: 6,816,128 km (0.105 R)
• M10: 7,988,377 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.1

Radius: 8.7

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.34 AU - 1.8 AU

Year: 1358 Days

Day: 13.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 43,396,639 km

• M1: 108,608 km (0.104 R)
• M2: 388,506 km (0.093 R)
• M3: 899,382 km (0.116 R)
• M4: 1,960,330 km (0.037 R)
• M5: 2,272,541 km (0.115 R)
• M6: 2,691,116 km (0.066 R)
• M7: 3,160,554 km (0.069 R)
• M8: 3,714,216 km (0.071 R)
• M9: 4,129,350 km (0.066 R)
• M10: 4,920,872 km (0.109 R)
• M11: 5,522,555 km (0.053 R)
• M12: 5,872,913 km (0.102 R)
• M13: 6,150,716 km (0.088 R)
• M14: 6,942,837 km (0.085 R)
• M15: 7,278,236 km (0.117 R)
• M16: 7,699,802 km (0.03 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.5

Radius: 13.9

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 2.03 AU - 2.09 AU

Year: 2041 Days

Day: 13.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 43,396,639 km

• M1: 173,085 km (0.101 R)
• M2: 615,446 km (0.118 R)
• M3: 1,318,107 km (0.093 R)
• M4: 2,043,956 km (0.11 R)
• M5: 2,948,424 km (0.104 R)
• M6: 3,624,457 km (0.026 R)
• M7: 4,066,818 km (0.077 R)
• M8: 5,935,595 km (0.106 R)
• M9: 7,244,426 km (0.112 R)
• M10: 7,770,861 km (0.032 R)
• M11: 8,260,196 km (0.05 R)
• M12: 8,835,400 km (0.083 R)
• M13: 13,685,512 km (0.033 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 461.2

Radius: 13.4

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 3.06 AU - 3.74 AU

Year: 4327 Days

Day: 7.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 43,396,639 km

• M1: 166,652 km (0.11 R)
• M2: 663,018 km (0.046 R)
• M3: 1,252,733 km (0.08 R)
• M4: 2,676,605 km (0.073 R)
• M5: 3,370,290 km (0.087 R)
• M6: 4,269,224 km (0.052 R)
• M7: 4,751,827 km (0.079 R)
• M8: 5,504,902 km (0.086 R)
• M9: 5,966,113 km (0.099 R)
• M10: 6,541,765 km (0.106 R)
• M11: 8,110,449 km (0.09 R)
• M12: 8,818,346 km (0.114 R)
• M13: 9,338,049 km (0.102 R)
• M14: 10,936,652 km (0.082 R)
• M15: 12,341,675 km (0.111 R)
• M16: 15,348,592 km (0.046 R)
• M17: 16,321,876 km (0.06 R)
• M18: 17,917,337 km (0.12 R)
• M19: 18,451,551 km (0.114 R)
• M20: 19,119,057 km (0.109 R)
• M21: 19,739,738 km (0.108 R)
• M22: 21,682,715 km (0.112 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.6

Radius: 11.7

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 4.53 AU - 6.11 AU

Year: 8470 Days

Day: 10.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 43,396,639 km

• M1: 145,559 km (0.028 R)
• M2: 551,867 km (0.086 R)
• M3: 987,346 km (0.094 R)
• M4: 1,630,168 km (0.114 R)
• M5: 2,283,462 km (0.103 R)
• M6: 3,560,280 km (0.099 R)
• M7: 3,956,864 km (0.081 R)
• M8: 5,455,236 km (0.118 R)
• M9: 6,297,472 km (0.058 R)
• M10: 6,768,556 km (0.092 R)
• M11: 9,073,560 km (0.119 R)
• M12: 9,866,428 km (0.056 R)
• M13: 10,453,450 km (0.091 R)
• M14: 11,590,095 km (0.053 R)
• M15: 12,355,288 km (0.06 R)
• M16: 14,230,647 km (0.099 R)
• M17: 23,130,972 km (0.103 R)
• M18: 23,992,806 km (0.061 R)
• M19: 27,751,751 km (0.037 R)
• M20: 30,636,148 km (0.1 R)
• M21: 31,675,554 km (0.051 R)
• M22: 35,272,635 km (0.097 R)
• M23: 39,864,392 km (0.07 R)
• M24: 41,228,126 km (0.057 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 506 - 17,445 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit