🌌 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 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792.4

Radius: 14.8

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.6 AU - 0.66 AU

Year: 345 Days

Day: 12.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 86,119,870 km

• M1: 184,005 km (0.104 R)
• M2: 650,302 km (0.038 R)
• M3: 1,142,778 km (0.109 R)
• M4: 2,098,260 km (0.108 R)
• M5: 2,609,286 km (0.098 R)
• M6: 3,505,677 km (0.071 R)
• M7: 3,976,162 km (0.063 R)
• M8: 4,557,948 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71

Radius: 9.4

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.53 AU - 0.81 AU

Year: 379 Days

Day: 6.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 86,119,870 km

• M1: 116,836 km (0.101 R)
• M2: 447,597 km (0.054 R)
• M3: 794,215 km (0.082 R)
• M4: 1,366,128 km (0.047 R)
• M5: 1,801,158 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961.1

Radius: 9.5

Gravity: 10.65 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.77 AU - 0.79 AU

Year: 476 Days

Day: 11.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 86,119,870 km

• M1: 118,332 km (0.077 R)
• M2: 438,621 km (0.083 R)
• M3: 942,915 km (0.063 R)
• M4: 1,314,816 km (0.043 R)
• M5: 1,993,691 km (0.096 R)
• M6: 3,016,342 km (0.112 R)
• M7: 3,506,574 km (0.092 R)
• M8: 5,742,314 km (0.092 R)
• M9: 6,360,453 km (0.059 R)
• M10: 6,878,211 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.4

Radius: 9.2

Gravity: 7.59 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.26 AU - 1.34 AU

Year: 1023 Days

Day: 6 Hours

Environment

Temp: -186 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 86,119,870 km

• M1: 114,442 km (0.094 R)
• M2: 591,809 km (0.11 R)
• M3: 984,803 km (0.106 R)
• M4: 1,452,745 km (0.055 R)
• M5: 1,748,350 km (0.027 R)
• M6: 2,053,979 km (0.085 R)
• M7: 2,406,731 km (0.054 R)
• M8: 2,825,156 km (0.118 R)
• M9: 3,462,892 km (0.078 R)
• M10: 4,078,786 km (0.117 R)
• M11: 4,482,251 km (0.057 R)
• M12: 5,233,083 km (0.096 R)
• M13: 5,834,018 km (0.097 R)
• M14: 6,660,247 km (0.102 R)
• M15: 7,173,068 km (0.116 R)
• M16: 7,661,954 km (0.074 R)
• M17: 8,120,771 km (0.03 R)
• M18: 9,348,521 km (0.116 R)
• M19: 10,232,943 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.4

Radius: 12.3

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.79 AU - 2.99 AU

Year: 2550 Days

Day: 5.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 86,119,870 km

• M1: 209,587 km (0.08 R)
• M2: 693,536 km (0.12 R)
• M3: 1,183,170 km (0.098 R)
• M4: 1,884,634 km (0.098 R)
• M5: 2,308,894 km (0.113 R)
• M6: 2,746,767 km (0.07 R)
• M7: 3,226,228 km (0.026 R)
• M8: 4,217,912 km (0.038 R)
• M9: 5,731,394 km (0.053 R)
• M10: 6,205,020 km (0.07 R)
• M11: 6,751,352 km (0.102 R)
• M12: 7,836,684 km (0.096 R)
• M13: 9,034,963 km (0.11 R)
• M14: 10,668,273 km (0.032 R)
• M15: 11,089,241 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.3

Radius: 11.2

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.26 AU - 3.7 AU

Year: 3551 Days

Day: 12.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 86,119,870 km

• M1: 139,874 km (0.085 R)
• M2: 792,570 km (0.084 R)
• M3: 1,312,721 km (0.084 R)
• M4: 1,983,069 km (0.102 R)
• M5: 2,548,250 km (0.051 R)
• M6: 7,158,258 km (0.044 R)
• M7: 8,332,601 km (0.068 R)
• M8: 12,375,484 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.5

Radius: 10.2

Gravity: 9.16 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 3.4 AU - 4.44 AU

Year: 5357 Days

Day: 5.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 86,119,870 km

• M1: 127,158 km (0.092 R)
• M2: 448,046 km (0.084 R)
• M3: 907,311 km (0.075 R)
• M4: 1,687,314 km (0.114 R)
• M5: 2,446,224 km (0.026 R)
• M6: 3,102,809 km (0.054 R)
• M7: 3,778,842 km (0.115 R)
• M8: 4,630,204 km (0.1 R)
• M9: 5,044,291 km (0.074 R)
• M10: 5,883,983 km (0.09 R)
• M11: 6,572,732 km (0.117 R)
• M12: 6,919,201 km (0.074 R)
• M13: 7,499,042 km (0.092 R)
• M14: 9,218,819 km (0.074 R)
• M15: 10,193,749 km (0.112 R)
• M16: 10,897,008 km (0.102 R)
• M17: 15,690,273 km (0.065 R)
• M18: 16,819,438 km (0.028 R)
• M19: 18,136,647 km (0.107 R)
• M20: 18,820,609 km (0.075 R)
• M21: 23,370,030 km (0.117 R)
• M22: 26,546,741 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 729.4

Radius: 3.4

Gravity: 63.1 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 6.4 AU - 8.98 AU

Year: 14720 Days

Day: 23.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 86,119,870 km

• M1: 42,486 km (0.093 R)
• M2: 154,385 km (0.115 R)
• M3: 277,953 km (0.091 R)
• M4: 430,243 km (0.106 R)
• M5: 636,838 km (0.098 R)
• M6: 906,413 km (0.026 R)
• M7: 1,180,626 km (0.092 R)
• M8: 1,667,268 km (0.078 R)
• M9: 1,838,109 km (0.083 R)
• M10: 2,898,010 km (0.068 R)
• M11: 3,020,082 km (0.111 R)
• M12: 4,436,624 km (0.048 R)
• M13: 5,145,269 km (0.099 R)
• M14: 5,397,342 km (0.061 R)
• M15: 5,507,894 km (0.113 R)
• M16: 5,695,490 km (0.081 R)
• M17: 5,965,215 km (0.089 R)
• M18: 6,324,549 km (0.069 R)
• M19: 6,613,722 km (0.052 R)
• M20: 8,049,413 km (0.105 R)
• M21: 9,253,675 km (0.11 R)
• M22: 11,458,299 km (0.093 R)
• M23: 14,479,877 km (0.027 R)
• M24: 15,718,697 km (0.086 R)
• M25: 18,322,149 km (0.097 R)
• M26: 24,563,970 km (0.106 R)
• M27: 24,766,376 km (0.115 R)
• M28: 25,277,253 km (0.098 R)
• M29: 28,713,965 km (0.045 R)
• M30: 32,206,776 km (0.049 R)
• M31: 34,180,570 km (0.026 R)
• M32: 36,364,550 km (0.092 R)
• M33: 37,960,759 km (0.08 R)
• M34: 39,881,596 km (0.072 R)
• M35: 40,441,989 km (0.107 R)
• M36: 43,029,135 km (0.118 R)
• M37: 43,176,040 km (0.053 R)
• M38: 44,363,099 km (0.103 R)
• M39: 47,113,306 km (0.094 R)
• M40: 50,626,313 km (0.056 R)
• M41: 53,627,246 km (0.062 R)
• M42: 55,866,726 km (0.052 R)
• M43: 61,085,897 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 307.5

Radius: 3.1

Gravity: 32 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 7.09 AU - 8.81 AU

Year: 15473 Days

Day: 22.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 86,119,870 km

• M1: 38,596 km (0.114 R)
• M2: 159,322 km (0.093 R)
• M3: 271,221 km (0.091 R)
• M4: 396,734 km (0.09 R)
• M5: 716,723 km (0.086 R)
• M6: 951,592 km (0.097 R)
• M7: 1,058,854 km (0.076 R)
• M8: 1,310,926 km (0.075 R)
• M9: 2,160,044 km (0.082 R)
• M10: 2,327,444 km (0.112 R)
• M11: 3,346,056 km (0.107 R)
• M12: 3,621,615 km (0.089 R)
• M13: 4,568,869 km (0.088 R)
• M14: 4,876,292 km (0.1 R)
• M15: 5,635,352 km (0.047 R)
• M16: 5,775,076 km (0.089 R)
• M17: 6,817,923 km (0.098 R)
• M18: 7,849,699 km (0.096 R)
• M19: 8,156,226 km (0.049 R)
• M20: 9,028,680 km (0.113 R)
• M21: 11,339,070 km (0.092 R)
• M22: 11,730,717 km (0.116 R)
• M23: 12,959,514 km (0.099 R)
• M24: 14,078,805 km (0.112 R)
• M25: 15,876,224 km (0.041 R)
• M26: 19,438,747 km (0.119 R)
• M27: 22,963,273 km (0.053 R)
• M28: 23,861,010 km (0.101 R)
• M29: 27,786,757 km (0.113 R)
• M30: 27,988,565 km (0.029 R)
• M31: 28,293,146 km (0.053 R)
• M32: 29,012,263 km (0.099 R)
• M33: 35,564,650 km (0.103 R)
• M34: 35,802,510 km (0.088 R)
• M35: 35,921,890 km (0.066 R)
• M36: 42,634,047 km (0.119 R)
• M37: 42,768,086 km (0.092 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 819

Radius: 4.7

Gravity: 37.08 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 7.73 AU - 12.39 AU

Year: 22025 Days

Day: 23.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 86,119,870 km

• M1: 424,409 km (0.081 R)
• M2: 1,025,793 km (0.083 R)
• M3: 2,071,781 km (0.116 R)
• M4: 3,748,324 km (0.105 R)
• M5: 7,240,537 km (0.079 R)
• M6: 7,693,519 km (0.11 R)
• M7: 9,635,748 km (0.098 R)
• M8: 10,308,041 km (0.114 R)
• M9: 13,237,018 km (0.095 R)
• M10: 14,850,581 km (0.059 R)
• M11: 20,371,490 km (0.118 R)
• M12: 20,768,373 km (0.109 R)
• M13: 22,303,098 km (0.046 R)
• M14: 22,937,692 km (0.038 R)
• M15: 23,911,873 km (0.111 R)
• M16: 26,999,723 km (0.102 R)
• M17: 27,599,311 km (0.09 R)
• M18: 33,952,284 km (0.058 R)
• M19: 36,949,627 km (0.043 R)
• M20: 45,795,050 km (0.118 R)
• M21: 48,207,764 km (0.084 R)
• M22: 72,456,083 km (0.063 R)
• M23: 77,395,954 km (0.067 R)
• M24: 84,580,093 km (0.04 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 11,863 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit