🌌 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: 153.1

Radius: 8.6

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.55 AU - 0.83 AU

Year: 376 Days

Day: 5.4 Hours

Environment

Temp: -136 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 17,626,667 km

• M1: 107,411 km (0.116 R)
• M2: 445,353 km (0.074 R)
• M3: 834,307 km (0.084 R)
• M4: 1,171,651 km (0.066 R)
• M5: 1,742,067 km (0.096 R)
• M6: 2,143,588 km (0.077 R)
• M7: 2,478,687 km (0.09 R)
• M8: 3,171,026 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.4

Radius: 10.9

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.7 AU - 0.98 AU

Year: 505 Days

Day: 9.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 17,626,667 km

• M1: 135,536 km (0.075 R)
• M2: 621,729 km (0.073 R)
• M3: 1,082,789 km (0.101 R)
• M4: 1,584,541 km (0.066 R)
• M5: 2,094,221 km (0.058 R)
• M6: 2,458,791 km (0.112 R)
• M7: 2,981,336 km (0.115 R)
• M8: 3,475,757 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.6

Radius: 12

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.72 AU - 0.98 AU

Year: 514 Days

Day: 14.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 17,626,667 km

• M1: 155,133 km (0.064 R)
• M2: 663,018 km (0.093 R)
• M3: 1,073,365 km (0.102 R)
• M4: 1,855,762 km (0.116 R)
• M5: 2,402,392 km (0.12 R)
• M6: 2,846,548 km (0.083 R)
• M7: 3,345,457 km (0.065 R)
• M8: 4,161,514 km (0.055 R)
• M9: 4,550,019 km (0.074 R)
• M10: 5,467,802 km (0.075 R)
• M11: 5,953,098 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.6

Radius: 10.5

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.83 AU - 1.39 AU

Year: 767 Days

Day: 11.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 17,626,667 km

• M1: 131,347 km (0.098 R)
• M2: 618,587 km (0.097 R)
• M3: 950,395 km (0.089 R)
• M4: 1,455,288 km (0.088 R)
• M5: 1,784,104 km (0.118 R)
• M6: 2,178,145 km (0.114 R)
• M7: 2,579,666 km (0.115 R)
• M8: 3,173,120 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.1

Radius: 11.9

Gravity: 6.93 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.13 AU - 3.07 AU

Year: 2750 Days

Day: 14.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 17,626,667 km

• M1: 147,952 km (0.048 R)
• M2: 625,319 km (0.102 R)
• M3: 1,088,325 km (0.114 R)
• M4: 1,473,988 km (0.071 R)
• M5: 2,175,602 km (0.115 R)
• M6: 2,690,219 km (0.114 R)
• M7: 3,124,202 km (0.098 R)
• M8: 3,702,996 km (0.112 R)
• M9: 4,600,434 km (0.114 R)
• M10: 5,125,522 km (0.079 R)
• M11: 5,637,446 km (0.072 R)
• M12: 6,099,255 km (0.069 R)
• M13: 6,945,380 km (0.078 R)
• M14: 7,670,930 km (0.085 R)
• M15: 9,497,370 km (0.04 R)
• M16: 10,921,243 km (0.101 R)
• M17: 13,035,061 km (0.039 R)
• M18: 15,618,766 km (0.044 R)
• M19: 17,596,300 km (0.109 R)
• M20: 19,245,766 km (0.104 R)
• M21: 20,045,666 km (0.095 R)
• M22: 21,060,388 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.9

Radius: 8.2

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.03 AU - 3.33 AU

Year: 2878 Days

Day: 14.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 17,626,667 km

• M1: 102,026 km (0.073 R)
• M2: 420,071 km (0.028 R)
• M3: 793,318 km (0.045 R)
• M4: 1,126,472 km (0.079 R)
• M5: 1,506,301 km (0.112 R)
• M6: 2,059,813 km (0.079 R)
• M7: 2,321,609 km (0.104 R)
• M8: 2,770,553 km (0.07 R)
• M9: 3,075,882 km (0.077 R)
• M10: 3,984,240 km (0.106 R)
• M11: 4,810,918 km (0.117 R)
• M12: 5,407,664 km (0.119 R)
• M13: 5,863,489 km (0.065 R)
• M14: 6,569,740 km (0.056 R)
• M15: 7,663,450 km (0.094 R)
• M16: 8,034,303 km (0.081 R)
• M17: 8,998,462 km (0.105 R)
• M18: 10,516,730 km (0.077 R)
• M19: 11,082,809 km (0.105 R)
• M20: 11,557,483 km (0.098 R)
• M21: 12,314,298 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.5

Radius: 9

Gravity: 10.6 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.33 AU - 3.81 AU

Year: 3529 Days

Day: 12.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 17,626,667 km

• M1: 111,899 km (0.091 R)
• M2: 396,883 km (0.064 R)
• M3: 848,070 km (0.083 R)
• M4: 1,392,457 km (0.042 R)
• M5: 2,126,384 km (0.086 R)
• M6: 2,848,343 km (0.086 R)
• M7: 3,724,837 km (0.075 R)
• M8: 4,672,839 km (0.052 R)
• M9: 4,996,718 km (0.115 R)
• M10: 6,628,981 km (0.093 R)
• M11: 8,334,546 km (0.118 R)
• M12: 8,963,007 km (0.096 R)
• M13: 10,356,062 km (0.037 R)
• M14: 11,346,699 km (0.068 R)
• M15: 12,258,498 km (0.03 R)
• M16: 13,169,101 km (0.077 R)
• M17: 15,070,789 km (0.09 R)
• M18: 15,780,481 km (0.079 R)
• M19: 17,325,229 km (0.115 R)
• M20: 18,409,514 km (0.088 R)
• M21: 20,712,872 km (0.091 R)
• M22: 22,351,119 km (0.051 R)
• M23: 23,707,971 km (0.066 R)
• M24: 25,270,671 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 769.8

Radius: 9.6

Gravity: 8.35 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 2.51 AU - 3.81 AU

Year: 3685 Days

Day: 7.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 17,626,667 km

• M1: 121,922 km (0.114 R)
• M2: 939,325 km (0.108 R)
• M3: 1,496,428 km (0.119 R)
• M4: 1,800,560 km (0.112 R)
• M5: 2,442,634 km (0.106 R)
• M6: 3,028,011 km (0.061 R)
• M7: 4,156,278 km (0.112 R)
• M8: 5,197,479 km (0.077 R)
• M9: 6,802,814 km (0.093 R)
• M10: 9,205,954 km (0.113 R)
• M11: 11,311,245 km (0.089 R)
• M12: 15,721,539 km (0.115 R)
• M13: 22,888,175 km (0.113 R)
• M14: 24,484,534 km (0.106 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.4

Radius: 14.3

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 3.34 AU - 4.24 AU

Year: 4840 Days

Day: 12.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 17,626,667 km

• M1: 207,193 km (0.048 R)
• M2: 712,834 km (0.042 R)
• M3: 1,461,422 km (0.068 R)
• M4: 2,131,770 km (0.119 R)
• M5: 3,096,676 km (0.105 R)
• M6: 3,890,592 km (0.086 R)
• M7: 4,396,981 km (0.108 R)
• M8: 5,058,802 km (0.091 R)
• M9: 5,544,097 km (0.034 R)
• M10: 6,475,942 km (0.11 R)
• M11: 7,219,892 km (0.114 R)
• M12: 9,975,635 km (0.103 R)
• M13: 11,747,322 km (0.044 R)
• M14: 16,004,579 km (0.067 R)
• M15: 16,802,384 km (0.088 R)
• M16: 17,574,309 km (0.101 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 175 - 13,856 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit