🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.8

Radius: 13.5

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.47 AU - 0.63 AU

Year: 272 Days

Day: 6.5 Hours

Environment

Temp: -135 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 82,213,800 km

• M1: 167,998 km (0.109 R)
• M2: 672,293 km (0.095 R)
• M3: 1,317,808 km (0.117 R)
• M4: 1,844,392 km (0.055 R)
• M5: 2,330,436 km (0.094 R)
• M6: 2,761,876 km (0.115 R)
• M7: 3,414,571 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.2

Radius: 12.8

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.55 AU - 0.61 AU

Year: 295 Days

Day: 11.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,213,800 km

• M1: 159,172 km (0.09 R)
• M2: 564,283 km (0.08 R)
• M3: 964,158 km (0.057 R)
• M4: 1,373,458 km (0.076 R)
• M5: 1,825,543 km (0.097 R)
• M6: 2,224,072 km (0.114 R)
• M7: 2,904,592 km (0.086 R)
• M8: 4,048,567 km (0.028 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.8

Radius: 11.3

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.58 AU - 0.88 AU

Year: 416 Days

Day: 13.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 82,213,800 km

• M1: 140,472 km (0.082 R)
• M2: 995,275 km (0.052 R)
• M3: 1,575,266 km (0.096 R)
• M4: 2,093,772 km (0.058 R)
• M5: 2,463,578 km (0.102 R)
• M6: 2,918,954 km (0.118 R)
• M7: 3,489,520 km (0.118 R)
• M8: 4,200,559 km (0.112 R)
• M9: 5,113,106 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 776.6

Radius: 13.6

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.71 AU - 1.13 AU

Year: 588 Days

Day: 11.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 82,213,800 km

• M1: 169,345 km (0.101 R)
• M2: 674,836 km (0.087 R)
• M3: 1,109,867 km (0.12 R)
• M4: 1,718,431 km (0.107 R)
• M5: 2,362,749 km (0.112 R)
• M6: 3,056,733 km (0.058 R)
• M7: 3,813,848 km (0.112 R)
• M8: 4,304,978 km (0.106 R)
• M9: 6,250,498 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.3

Radius: 9.9

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.53 AU - 1.65 AU

Year: 1337 Days

Day: 13.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 82,213,800 km

• M1: 123,119 km (0.054 R)
• M2: 445,203 km (0.055 R)
• M3: 946,655 km (0.06 R)
• M4: 1,265,000 km (0.096 R)
• M5: 1,979,928 km (0.07 R)
• M6: 2,438,894 km (0.069 R)
• M7: 2,944,086 km (0.064 R)
• M8: 3,370,889 km (0.11 R)
• M9: 3,911,236 km (0.08 R)
• M10: 4,703,806 km (0.119 R)
• M11: 6,098,806 km (0.116 R)
• M12: 6,988,614 km (0.105 R)
• M13: 7,363,357 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.6

Radius: 10.7

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.35 AU - 2.83 AU

Year: 2780 Days

Day: 8.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 82,213,800 km

• M1: 133,142 km (0.04 R)
• M2: 476,020 km (0.103 R)
• M3: 932,444 km (0.108 R)
• M4: 1,499,120 km (0.114 R)
• M5: 1,976,786 km (0.086 R)
• M6: 2,390,275 km (0.113 R)
• M7: 2,937,953 km (0.107 R)
• M8: 3,550,107 km (0.056 R)
• M9: 4,851,758 km (0.075 R)
• M10: 5,326,432 km (0.072 R)
• M11: 5,733,039 km (0.03 R)
• M12: 6,448,267 km (0.108 R)
• M13: 7,483,185 km (0.108 R)
• M14: 8,305,973 km (0.08 R)
• M15: 9,916,095 km (0.097 R)
• M16: 12,791,964 km (0.106 R)
• M17: 16,380,967 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 219.4

Radius: 6.8

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 6.91 AU - 8.89 AU

Year: 14807 Days

Day: 15.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 65.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 82,213,800 km

• M1: 84,523 km (0.063 R)
• M2: 312,510 km (0.072 R)
• M3: 549,772 km (0.112 R)
• M4: 797,955 km (0.12 R)
• M5: 1,267,393 km (0.065 R)
• M6: 1,612,665 km (0.076 R)
• M7: 2,101,700 km (0.114 R)
• M8: 2,454,751 km (0.038 R)
• M9: 2,826,353 km (0.108 R)
• M10: 3,371,786 km (0.108 R)
• M11: 3,682,052 km (0.111 R)
• M12: 4,786,982 km (0.081 R)
• M13: 5,179,527 km (0.117 R)
• M14: 7,314,438 km (0.095 R)
• M15: 8,084,119 km (0.083 R)
• M16: 9,407,462 km (0.111 R)
• M17: 9,927,016 km (0.083 R)
• M18: 10,169,514 km (0.111 R)
• M19: 10,869,332 km (0.045 R)
• M20: 11,335,928 km (0.091 R)
• M21: 12,253,562 km (0.12 R)
• M22: 14,731,800 km (0.112 R)
• M23: 16,355,386 km (0.1 R)
• M24: 18,603,094 km (0.114 R)
• M25: 22,514,779 km (0.109 R)
• M26: 28,472,514 km (0.065 R)
• M27: 41,467,483 km (0.088 R)
• M28: 42,350,559 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 578.1

Radius: 5.1

Gravity: 22.23 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 6.77 AU - 9.29 AU

Year: 15174 Days

Day: 18.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 82,213,800 km

• M1: 63,729 km (0.078 R)
• M2: 241,900 km (0.11 R)
• M3: 548,575 km (0.079 R)
• M4: 1,065,885 km (0.072 R)
• M5: 1,520,662 km (0.053 R)
• M6: 2,736,594 km (0.044 R)
• M7: 3,041,175 km (0.054 R)
• M8: 4,880,631 km (0.089 R)
• M9: 5,879,346 km (0.105 R)
• M10: 9,576,956 km (0.066 R)
• M11: 10,113,414 km (0.09 R)
• M12: 12,905,210 km (0.113 R)
• M13: 13,229,538 km (0.111 R)
• M14: 13,894,351 km (0.111 R)
• M15: 14,098,103 km (0.078 R)
• M16: 15,874,129 km (0.101 R)
• M17: 16,472,521 km (0.074 R)
• M18: 17,163,663 km (0.027 R)
• M19: 18,276,821 km (0.055 R)
• M20: 18,603,542 km (0.088 R)
• M21: 20,558,039 km (0.082 R)
• M22: 20,911,389 km (0.075 R)
• M23: 24,275,994 km (0.08 R)
• M24: 26,396,395 km (0.042 R)
• M25: 28,856,831 km (0.091 R)
• M26: 29,299,790 km (0.104 R)
• M27: 29,522,990 km (0.041 R)
• M28: 34,600,043 km (0.041 R)
• M29: 35,604,742 km (0.079 R)
• M30: 38,467,596 km (0.112 R)
• M31: 39,545,449 km (0.088 R)
• M32: 43,332,220 km (0.12 R)
• M33: 47,969,754 km (0.06 R)
• M34: 50,009,072 km (0.088 R)
• M35: 50,969,640 km (0.101 R)
• M36: 51,942,325 km (0.112 R)
• M37: 54,428,044 km (0.075 R)
• M38: 59,278,306 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 386.3

Radius: 3.3

Gravity: 35.47 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 7.13 AU - 9.07 AU

Year: 15373 Days

Day: 18.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 82,213,800 km

• M1: 43,084 km (0.097 R)
• M2: 159,471 km (0.11 R)
• M3: 290,968 km (0.115 R)
• M4: 649,404 km (0.081 R)
• M5: 1,010,833 km (0.117 R)
• M6: 1,507,348 km (0.096 R)
• M7: 1,688,511 km (0.094 R)
• M8: 1,952,551 km (0.119 R)
• M9: 2,979,092 km (0.081 R)
• M10: 4,290,467 km (0.098 R)
• M11: 4,561,688 km (0.12 R)
• M12: 5,138,088 km (0.091 R)
• M13: 5,548,435 km (0.091 R)
• M14: 7,115,473 km (0.088 R)
• M15: 9,149,406 km (0.099 R)
• M16: 9,853,713 km (0.098 R)
• M17: 9,957,234 km (0.11 R)
• M18: 10,378,352 km (0.034 R)
• M19: 11,256,043 km (0.087 R)
• M20: 12,301,433 km (0.046 R)
• M21: 13,157,881 km (0.118 R)
• M22: 13,409,804 km (0.055 R)
• M23: 14,582,950 km (0.083 R)
• M24: 15,194,506 km (0.105 R)
• M25: 17,056,700 km (0.082 R)
• M26: 24,010,458 km (0.076 R)
• M27: 28,052,294 km (0.112 R)
• M28: 31,842,655 km (0.091 R)
• M29: 32,754,454 km (0.092 R)
• M30: 34,154,540 km (0.059 R)
• M31: 34,749,491 km (0.092 R)
• M32: 40,154,612 km (0.037 R)
• M33: 40,817,181 km (0.063 R)
• M34: 41,352,591 km (0.095 R)
• M35: 41,622,017 km (0.05 R)
• M36: 42,028,325 km (0.031 R)
• M37: 43,959,484 km (0.066 R)
• M38: 44,521,972 km (0.074 R)
• M39: 47,259,164 km (0.109 R)
• M40: 48,146,429 km (0.042 R)
• M41: 49,801,580 km (0.105 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 823.3

Radius: 3.7

Gravity: 60.14 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 9.15 AU - 10.47 AU

Year: 20490 Days

Day: 16 Hours

Environment

Temp: -239 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 82,213,800 km

• M1: 46,076 km (0.076 R)
• M2: 346,169 km (0.108 R)
• M3: 517,309 km (0.055 R)
• M4: 2,049,940 km (0.088 R)
• M5: 2,354,521 km (0.078 R)
• M6: 3,784,527 km (0.116 R)
• M7: 4,140,869 km (0.107 R)
• M8: 4,310,064 km (0.108 R)
• M9: 5,226,202 km (0.072 R)
• M10: 7,434,117 km (0.081 R)
• M11: 8,468,436 km (0.077 R)
• M12: 10,881,600 km (0.113 R)
• M13: 11,139,207 km (0.026 R)
• M14: 11,935,965 km (0.115 R)
• M15: 12,417,970 km (0.065 R)
• M16: 16,665,502 km (0.116 R)
• M17: 18,880,598 km (0.044 R)
• M18: 25,996,370 km (0.082 R)
• M19: 26,688,260 km (0.1 R)
• M20: 27,038,918 km (0.111 R)
• M21: 28,593,539 km (0.106 R)
• M22: 30,333,212 km (0.069 R)
• M23: 32,939,058 km (0.048 R)
• M24: 43,875,260 km (0.066 R)
• M25: 47,368,969 km (0.107 R)
• M26: 57,387,987 km (0.118 R)
• M27: 70,050,549 km (0.112 R)
• M28: 73,884,593 km (0.111 R)
• M29: 77,145,228 km (0.114 R)
• M30: 78,332,587 km (0.094 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: 494 - 13,301 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit