🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.7

Radius: 11.7

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.57 AU - 0.63 AU

Year: 321 Days

Day: 9.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,361,521 km

• M1: 145,708 km (0.118 R)
• M2: 515,514 km (0.059 R)
• M3: 883,226 km (0.072 R)
• M4: 1,388,867 km (0.041 R)
• M5: 2,063,254 km (0.112 R)
• M6: 2,484,821 km (0.108 R)
• M7: 2,927,331 km (0.051 R)
• M8: 3,361,315 km (0.114 R)
• M9: 3,728,428 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.3

Radius: 10.4

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.63 AU - 0.69 AU

Year: 370 Days

Day: 9.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,361,521 km

• M1: 132,843 km (0.11 R)
• M2: 522,695 km (0.116 R)
• M3: 860,936 km (0.09 R)
• M4: 1,193,193 km (0.107 R)
• M5: 1,856,061 km (0.092 R)
• M6: 2,224,371 km (0.051 R)
• M7: 2,839,068 km (0.076 R)
• M8: 3,411,879 km (0.084 R)
• M9: 3,856,184 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.9

Radius: 13.8

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.32 AU - 1.7 AU

Year: 1281 Days

Day: 10.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,361,521 km

• M1: 171,589 km (0.118 R)
• M2: 606,769 km (0.073 R)
• M3: 1,108,520 km (0.082 R)
• M4: 1,771,837 km (0.077 R)
• M5: 2,666,283 km (0.075 R)
• M6: 3,467,828 km (0.116 R)
• M7: 4,127,405 km (0.057 R)
• M8: 4,699,318 km (0.046 R)
• M9: 5,828,333 km (0.055 R)
• M10: 7,230,963 km (0.118 R)
• M11: 8,478,609 km (0.113 R)
• M12: 8,992,926 km (0.084 R)
• M13: 9,865,531 km (0.075 R)
• M14: 10,531,989 km (0.074 R)
• M15: 11,228,367 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.2

Radius: 8.2

Gravity: 7.5 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.04 AU - 2.24 AU

Year: 2161 Days

Day: 10.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 56,361,521 km

• M1: 103,223 km (0.089 R)
• M2: 390,151 km (0.11 R)
• M3: 732,282 km (0.098 R)
• M4: 1,232,686 km (0.1 R)
• M5: 1,648,569 km (0.047 R)
• M6: 2,192,207 km (0.116 R)
• M7: 2,580,713 km (0.108 R)
• M8: 2,999,587 km (0.089 R)
• M9: 3,363,259 km (0.093 R)
• M10: 4,991,632 km (0.115 R)
• M11: 5,389,712 km (0.113 R)
• M12: 5,929,012 km (0.059 R)
• M13: 6,529,648 km (0.119 R)
• M14: 7,591,494 km (0.08 R)
• M15: 7,999,297 km (0.084 R)
• M16: 9,915,347 km (0.099 R)
• M17: 10,870,080 km (0.108 R)
• M18: 12,315,944 km (0.113 R)
• M19: 12,879,629 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.7

Radius: 14

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.82 AU - 2.58 AU

Year: 2252 Days

Day: 11.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 56,361,521 km

• M1: 175,478 km (0.106 R)
• M2: 645,964 km (0.099 R)
• M3: 1,106,875 km (0.087 R)
• M4: 1,809,835 km (0.103 R)
• M5: 2,525,661 km (0.062 R)
• M6: 3,407,391 km (0.096 R)
• M7: 6,475,643 km (0.063 R)
• M8: 7,970,874 km (0.088 R)
• M9: 9,167,657 km (0.098 R)
• M10: 10,894,615 km (0.099 R)
• M11: 11,835,436 km (0.077 R)
• M12: 12,450,582 km (0.104 R)
• M13: 13,173,289 km (0.118 R)
• M14: 14,332,822 km (0.106 R)
• M15: 15,127,037 km (0.094 R)
• M16: 16,957,068 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431

Radius: 12.8

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 3.54 AU - 4.44 AU

Year: 5501 Days

Day: 5.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,361,521 km

• M1: 160,070 km (0.096 R)
• M2: 675,285 km (0.03 R)
• M3: 1,417,141 km (0.025 R)
• M4: 1,836,164 km (0.074 R)
• M5: 2,641,001 km (0.108 R)
• M6: 3,306,412 km (0.081 R)
• M7: 5,481,116 km (0.076 R)
• M8: 7,279,283 km (0.106 R)
• M9: 7,863,762 km (0.118 R)
• M10: 8,894,790 km (0.035 R)
• M11: 10,013,782 km (0.109 R)
• M12: 11,090,289 km (0.102 R)
• M13: 12,385,806 km (0.064 R)
• M14: 15,387,188 km (0.098 R)
• M15: 18,716,339 km (0.108 R)
• M16: 19,422,591 km (0.076 R)
• M17: 20,820,284 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875

Radius: 13.4

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 4.42 AU - 5.52 AU

Year: 7648 Days

Day: 14 Hours

Environment

Temp: -219 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 56,361,521 km

• M1: 166,951 km (0.103 R)
• M2: 686,953 km (0.104 R)
• M3: 1,201,720 km (0.099 R)
• M4: 1,824,944 km (0.08 R)
• M5: 2,658,504 km (0.096 R)
• M6: 3,422,799 km (0.096 R)
• M7: 4,722,805 km (0.089 R)
• M8: 6,989,213 km (0.115 R)
• M9: 8,022,934 km (0.081 R)
• M10: 11,471,614 km (0.12 R)
• M11: 11,956,161 km (0.119 R)
• M12: 12,454,172 km (0.08 R)
• M13: 13,492,082 km (0.112 R)
• M14: 13,910,956 km (0.097 R)
• M15: 17,795,564 km (0.059 R)
• M16: 22,267,493 km (0.036 R)
• M17: 23,363,896 km (0.113 R)
• M18: 23,881,954 km (0.035 R)
• M19: 25,755,817 km (0.092 R)
• M20: 29,492,622 km (0.107 R)
• M21: 31,752,746 km (0.098 R)
• M22: 33,141,463 km (0.097 R)
• M23: 38,861,039 km (0.053 R)
• M24: 40,946,732 km (0.027 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 518

Radius: 3.8

Gravity: 35.87 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 7.39 AU - 7.95 AU

Year: 14662 Days

Day: 16.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 56,361,521 km

• M1: 48,320 km (0.104 R)
• M2: 182,809 km (0.102 R)
• M3: 323,879 km (0.103 R)
• M4: 539,600 km (0.099 R)
• M5: 663,467 km (0.096 R)
• M6: 1,168,060 km (0.101 R)
• M7: 1,323,642 km (0.109 R)
• M8: 1,567,786 km (0.102 R)
• M9: 1,927,419 km (0.098 R)
• M10: 2,830,990 km (0.096 R)
• M11: 3,211,118 km (0.054 R)
• M12: 4,682,713 km (0.06 R)
• M13: 5,528,689 km (0.033 R)
• M14: 5,745,905 km (0.117 R)
• M15: 6,918,902 km (0.086 R)
• M16: 10,586,443 km (0.113 R)
• M17: 11,206,227 km (0.113 R)
• M18: 11,790,407 km (0.041 R)
• M19: 12,394,483 km (0.115 R)
• M20: 13,533,521 km (0.068 R)
• M21: 21,954,535 km (0.11 R)
• M22: 22,407,667 km (0.118 R)
• M23: 22,590,774 km (0.096 R)
• M24: 25,556,702 km (0.117 R)
• M25: 28,880,168 km (0.026 R)
• M26: 32,014,842 km (0.087 R)
• M27: 32,597,376 km (0.1 R)
• M28: 34,266,290 km (0.066 R)
• M29: 47,873,712 km (0.061 R)
• M30: 49,714,963 km (0.077 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: 519 - 17,058 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit