🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.07

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.59 AU - 0.67 AU

Year: 328 Days

Day: 45.7 Hours

Environment

Temp: -123 °C

Axial Tilt: 16.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,314,608 km

• M1: 207,043 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.1

Radius: 13.9

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.65 AU - 1.05 AU

Year: 514 Days

Day: 7.2 Hours

Environment

Temp: -145 °C

Axial Tilt: 91.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 68,314,608 km

• M1: 173,833 km (0.114 R)
• M2: 719,416 km (0.114 R)
• M3: 1,322,445 km (0.077 R)
• M4: 1,757,027 km (0.077 R)
• M5: 2,590,586 km (0.102 R)
• M6: 3,966,139 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.2

Radius: 13

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.7 AU - 1.16 AU

Year: 588 Days

Day: 14.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,314,608 km

• M1: 163,361 km (0.103 R)
• M2: 639,980 km (0.034 R)
• M3: 1,136,046 km (0.088 R)
• M4: 1,620,444 km (0.103 R)
• M5: 2,045,302 km (0.116 R)
• M6: 3,222,338 km (0.097 R)
• M7: 3,676,368 km (0.038 R)
• M8: 4,231,077 km (0.052 R)
• M9: 4,683,461 km (0.1 R)
• M10: 5,474,833 km (0.068 R)
• M11: 6,163,133 km (0.107 R)
• M12: 6,607,289 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.6

Radius: 8.9

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.92 AU - 0.98 AU

Year: 607 Days

Day: 8 Hours

Environment

Temp: -158 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 68,314,608 km

• M1: 111,899 km (0.075 R)
• M2: 392,246 km (0.059 R)
• M3: 997,668 km (0.046 R)
• M4: 2,274,187 km (0.115 R)
• M5: 3,199,898 km (0.062 R)
• M6: 3,921,110 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.4

Radius: 9.2

Gravity: 7.61 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.35 AU - 2.11 AU

Year: 1493 Days

Day: 7.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 68,314,608 km

• M1: 114,442 km (0.118 R)
• M2: 405,111 km (0.12 R)
• M3: 720,613 km (0.115 R)
• M4: 1,092,064 km (0.066 R)
• M5: 1,545,346 km (0.048 R)
• M6: 1,862,643 km (0.095 R)
• M7: 2,223,623 km (0.11 R)
• M8: 2,902,199 km (0.119 R)
• M9: 3,695,965 km (0.086 R)
• M10: 4,512,769 km (0.072 R)
• M11: 5,553,821 km (0.093 R)
• M12: 6,428,071 km (0.102 R)
• M13: 7,444,588 km (0.114 R)
• M14: 7,852,243 km (0.1 R)
• M15: 8,274,707 km (0.113 R)
• M16: 8,682,660 km (0.096 R)
• M17: 8,982,155 km (0.091 R)
• M18: 9,475,828 km (0.074 R)
• M19: 10,283,358 km (0.116 R)
• M20: 11,418,656 km (0.102 R)
• M21: 12,750,227 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.6

Radius: 11.6

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.79 AU - 3.53 AU

Year: 3685 Days

Day: 13.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,314,608 km

• M1: 144,212 km (0.076 R)
• M2: 549,323 km (0.113 R)
• M3: 962,214 km (0.096 R)
• M4: 1,524,701 km (0.104 R)
• M5: 2,275,234 km (0.049 R)
• M6: 3,226,527 km (0.095 R)
• M7: 4,823,783 km (0.106 R)
• M8: 5,202,565 km (0.097 R)
• M9: 6,868,936 km (0.082 R)
• M10: 7,824,417 km (0.111 R)
• M11: 8,201,105 km (0.118 R)
• M12: 8,773,466 km (0.097 R)
• M13: 11,188,126 km (0.053 R)
• M14: 11,592,489 km (0.098 R)
• M15: 12,430,835 km (0.102 R)
• M16: 13,349,964 km (0.113 R)
• M17: 13,931,302 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.4

Radius: 9.2

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 3.96 AU - 4.8 AU

Year: 6013 Days

Day: 7.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 68,314,608 km

• M1: 114,742 km (0.062 R)
• M2: 409,599 km (0.084 R)
• M3: 1,035,217 km (0.112 R)
• M4: 1,340,098 km (0.107 R)
• M5: 1,781,411 km (0.111 R)
• M6: 2,459,539 km (0.075 R)
• M7: 2,903,545 km (0.107 R)
• M8: 3,420,555 km (0.113 R)
• M9: 4,043,032 km (0.045 R)
• M10: 4,564,081 km (0.114 R)
• M11: 5,428,907 km (0.085 R)
• M12: 6,063,800 km (0.114 R)
• M13: 7,074,483 km (0.105 R)
• M14: 11,363,903 km (0.113 R)
• M15: 11,687,483 km (0.115 R)
• M16: 12,256,554 km (0.093 R)
• M17: 12,695,474 km (0.027 R)
• M18: 13,552,969 km (0.111 R)
• M19: 15,048,798 km (0.062 R)
• M20: 15,893,876 km (0.089 R)
• M21: 18,875,811 km (0.112 R)
• M22: 19,725,526 km (0.096 R)
• M23: 25,841,387 km (0.076 R)
• M24: 27,052,232 km (0.037 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 678.8

Radius: 3.5

Gravity: 55.41 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 5.86 AU - 5.98 AU

Year: 9449 Days

Day: 15.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 68,314,608 km

• M1: 43,533 km (0.119 R)
• M2: 180,864 km (0.056 R)
• M3: 307,124 km (0.074 R)
• M4: 602,879 km (0.108 R)
• M5: 823,835 km (0.052 R)
• M6: 1,771,837 km (0.09 R)
• M7: 2,152,863 km (0.1 R)
• M8: 2,791,646 km (0.092 R)
• M9: 3,030,105 km (0.076 R)
• M10: 3,749,970 km (0.115 R)
• M11: 4,460,261 km (0.083 R)
• M12: 4,755,866 km (0.101 R)
• M13: 6,286,551 km (0.098 R)
• M14: 9,059,797 km (0.119 R)
• M15: 9,776,370 km (0.111 R)
• M16: 13,870,415 km (0.047 R)
• M17: 16,152,531 km (0.118 R)
• M18: 16,290,011 km (0.095 R)
• M19: 18,976,490 km (0.117 R)
• M20: 20,224,435 km (0.086 R)
• M21: 21,526,086 km (0.118 R)
• M22: 22,452,696 km (0.11 R)
• M23: 23,936,407 km (0.038 R)
• M24: 28,677,014 km (0.099 R)
• M25: 29,081,228 km (0.067 R)
• M26: 31,586,842 km (0.064 R)
• M27: 35,725,318 km (0.098 R)
• M28: 35,842,004 km (0.075 R)
• M29: 36,902,952 km (0.065 R)
• M30: 37,742,346 km (0.068 R)
• M31: 45,741,045 km (0.069 R)
• M32: 46,016,305 km (0.091 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 352.9

Radius: 6.3

Gravity: 8.89 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 10.02 AU - 11.84 AU

Year: 23705 Days

Day: 15.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 68,314,608 km

• M1: 79,137 km (0.077 R)
• M2: 425,606 km (0.04 R)
• M3: 632,500 km (0.061 R)
• M4: 897,737 km (0.037 R)
• M5: 1,263,952 km (0.06 R)
• M6: 3,396,470 km (0.084 R)
• M7: 5,695,041 km (0.096 R)
• M8: 8,106,260 km (0.11 R)
• M9: 8,710,635 km (0.091 R)
• M10: 9,290,626 km (0.06 R)
• M11: 10,882,946 km (0.081 R)
• M12: 11,743,582 km (0.086 R)
• M13: 13,323,336 km (0.079 R)
• M14: 15,114,172 km (0.096 R)
• M15: 19,606,895 km (0.067 R)
• M16: 20,601,272 km (0.098 R)
• M17: 21,251,275 km (0.104 R)
• M18: 22,592,121 km (0.112 R)
• M19: 24,397,767 km (0.113 R)
• M20: 26,514,427 km (0.102 R)
• M21: 28,180,200 km (0.075 R)
• M22: 30,032,371 km (0.103 R)
• M23: 30,867,725 km (0.052 R)
• M24: 32,835,087 km (0.089 R)
• M25: 33,339,681 km (0.056 R)
• M26: 39,377,750 km (0.12 R)
• M27: 41,836,241 km (0.12 R)
• M28: 42,578,396 km (0.035 R)
• M29: 43,480,472 km (0.03 R)
• M30: 48,182,781 km (0.043 R)
• M31: 57,116,766 km (0.112 R)
• M32: 60,449,358 km (0.113 R)
• M33: 61,779,732 km (0.079 R)
• M34: 64,498,524 km (0.05 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 327 - 18,145 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit