🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.9

Radius: 10.1

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.59 AU - 0.73 AU

Year: 364 Days

Day: 12.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 107.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 90,802,048 km

• M1: 125,662 km (0.036 R)
• M2: 443,857 km (0.086 R)
• M3: 825,331 km (0.082 R)
• M4: 1,237,324 km (0.05 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47.5

Radius: 8

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.6 AU - 0.9 AU

Year: 441 Days

Day: 7.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 90,802,048 km

• M1: 99,483 km (0.103 R)
• M2: 385,364 km (0.103 R)
• M3: 637,137 km (0.045 R)
• M4: 953,836 km (0.079 R)
• M5: 1,442,273 km (0.114 R)
• M6: 2,032,137 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.7

Radius: 10.4

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.89 AU - 1.27 AU

Year: 761 Days

Day: 10.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 90,802,048 km

• M1: 129,402 km (0.057 R)
• M2: 628,760 km (0.117 R)
• M3: 984,952 km (0.093 R)
• M4: 1,452,296 km (0.091 R)
• M5: 2,163,784 km (0.111 R)
• M6: 2,852,682 km (0.117 R)
• M7: 3,322,569 km (0.105 R)
• M8: 4,010,420 km (0.086 R)
• M9: 5,722,567 km (0.097 R)
• M10: 6,974,851 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.5

Radius: 14.2

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.26 AU - 1.3 AU

Year: 982 Days

Day: 5.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 90,802,048 km

• M1: 176,675 km (0.059 R)
• M2: 646,263 km (0.036 R)
• M3: 1,144,873 km (0.058 R)
• M4: 1,690,755 km (0.1 R)
• M5: 2,170,964 km (0.053 R)
• M6: 2,657,157 km (0.077 R)
• M7: 3,386,597 km (0.052 R)
• M8: 3,918,118 km (0.115 R)
• M9: 4,540,445 km (0.112 R)
• M10: 5,035,764 km (0.09 R)
• M11: 5,628,620 km (0.093 R)
• M12: 6,114,364 km (0.073 R)
• M13: 8,535,157 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.3

Radius: 13.9

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.07 AU - 1.75 AU

Year: 1136 Days

Day: 6.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 90,802,048 km

• M1: 175,478 km (0.059 R)
• M2: 807,529 km (0.096 R)
• M3: 1,485,208 km (0.077 R)
• M4: 2,453,255 km (0.067 R)
• M5: 3,967,635 km (0.116 R)
• M6: 5,467,353 km (0.101 R)
• M7: 5,900,589 km (0.113 R)
• M8: 6,520,822 km (0.065 R)
• M9: 7,118,315 km (0.075 R)
• M10: 8,155,029 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.5

Radius: 10.9

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.6 AU - 1.62 AU

Year: 1386 Days

Day: 12.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 90,802,048 km

• M1: 135,536 km (0.098 R)
• M2: 618,438 km (0.102 R)
• M3: 1,135,448 km (0.048 R)
• M4: 1,541,008 km (0.1 R)
• M5: 2,469,562 km (0.109 R)
• M6: 2,873,925 km (0.092 R)
• M7: 3,548,611 km (0.047 R)
• M8: 4,361,376 km (0.094 R)
• M9: 5,583,441 km (0.102 R)
• M10: 6,015,480 km (0.115 R)
• M11: 6,658,152 km (0.109 R)
• M12: 7,194,610 km (0.099 R)
• M13: 9,513,078 km (0.064 R)
• M14: 10,417,846 km (0.118 R)
• M15: 10,808,745 km (0.065 R)
• M16: 11,277,136 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 764.6

Radius: 5.9

Gravity: 21.96 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 5.73 AU - 5.77 AU

Year: 9352 Days

Day: 20.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 90,802,048 km

• M1: 74,201 km (0.108 R)
• M2: 323,431 km (0.069 R)
• M3: 592,856 km (0.038 R)
• M4: 851,361 km (0.095 R)
• M5: 1,433,746 km (0.117 R)
• M6: 1,955,843 km (0.101 R)
• M7: 2,977,147 km (0.091 R)
• M8: 3,981,248 km (0.067 R)
• M9: 4,785,486 km (0.103 R)
• M10: 5,456,134 km (0.112 R)
• M11: 6,224,019 km (0.053 R)
• M12: 7,141,503 km (0.092 R)
• M13: 7,343,311 km (0.033 R)
• M14: 7,674,371 km (0.101 R)
• M15: 9,626,922 km (0.099 R)
• M16: 10,379,549 km (0.039 R)
• M17: 10,902,543 km (0.115 R)
• M18: 13,171,644 km (0.109 R)
• M19: 14,480,625 km (0.12 R)
• M20: 15,873,980 km (0.07 R)
• M21: 16,357,630 km (0.063 R)
• M22: 18,090,571 km (0.073 R)
• M23: 19,704,284 km (0.079 R)
• M24: 20,262,882 km (0.098 R)
• M25: 21,495,269 km (0.056 R)
• M26: 23,569,743 km (0.068 R)
• M27: 25,304,031 km (0.111 R)
• M28: 26,154,345 km (0.12 R)
• M29: 28,212,513 km (0.079 R)
• M30: 29,747,088 km (0.11 R)
• M31: 37,042,228 km (0.094 R)
• M32: 37,892,542 km (0.085 R)
• M33: 38,260,852 km (0.118 R)
• M34: 39,884,737 km (0.117 R)
• M35: 40,393,519 km (0.076 R)
• M36: 43,537,468 km (0.08 R)
• M37: 46,840,589 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 833.3

Radius: 7.5

Gravity: 14.81 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 9.51 AU - 11.83 AU

Year: 23639 Days

Day: 21.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 90,802,048 km

• M1: 93,349 km (0.089 R)
• M2: 353,051 km (0.11 R)
• M3: 596,297 km (0.08 R)
• M4: 829,819 km (0.114 R)
• M5: 1,285,644 km (0.095 R)
• M6: 2,305,602 km (0.117 R)
• M7: 3,121,659 km (0.038 R)
• M8: 3,473,064 km (0.1 R)
• M9: 4,650,848 km (0.119 R)
• M10: 5,515,524 km (0.101 R)
• M11: 5,986,159 km (0.107 R)
• M12: 7,611,390 km (0.094 R)
• M13: 8,359,080 km (0.094 R)
• M14: 9,038,105 km (0.105 R)
• M15: 10,314,175 km (0.101 R)
• M16: 10,830,587 km (0.103 R)
• M17: 12,483,194 km (0.062 R)
• M18: 13,144,267 km (0.098 R)
• M19: 20,480,547 km (0.09 R)
• M20: 22,666,920 km (0.079 R)
• M21: 25,234,767 km (0.099 R)
• M22: 27,375,064 km (0.081 R)
• M23: 28,114,676 km (0.113 R)
• M24: 31,608,085 km (0.094 R)
• M25: 34,517,614 km (0.107 R)
• M26: 37,752,070 km (0.03 R)
• M27: 40,703,337 km (0.081 R)
• M28: 46,015,707 km (0.109 R)
• M29: 49,560,279 km (0.046 R)
• M30: 57,187,376 km (0.118 R)
• M31: 57,588,149 km (0.06 R)
• M32: 61,278,729 km (0.109 R)
• M33: 66,883,413 km (0.094 R)
• M34: 74,476,851 km (0.084 R)
• M35: 74,954,667 km (0.107 R)
• M36: 76,158,182 km (0.096 R)
• M37: 76,886,424 km (0.116 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 339 - 15,644 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit