🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 53.8

Radius: 9.8

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.46 AU - 0.62 AU

Year: 269 Days

Day: 11.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 80,042,649 km

• M1: 121,922 km (0.096 R)
• M2: 479,012 km (0.089 R)
• M3: 839,543 km (0.082 R)
• M4: 1,186,610 km (0.111 R)
• M5: 1,635,554 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 542.6

Radius: 14

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.54 AU - 0.76 AU

Year: 355 Days

Day: 8.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,042,649 km

• M1: 181,761 km (0.05 R)
• M2: 620,831 km (0.027 R)
• M3: 1,099,096 km (0.094 R)
• M4: 1,745,358 km (0.066 R)
• M5: 2,218,387 km (0.092 R)
• M6: 2,768,458 km (0.1 R)
• M7: 3,508,818 km (0.074 R)
• M8: 4,073,251 km (0.107 R)
• M9: 4,725,498 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.1

Radius: 9

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.71 AU - 0.71 AU

Year: 406 Days

Day: 6.3 Hours

Environment

Temp: -169 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 80,042,649 km

• M1: 112,498 km (0.106 R)
• M2: 597,344 km (0.074 R)
• M3: 988,992 km (0.045 R)
• M4: 1,290,730 km (0.065 R)
• M5: 1,711,998 km (0.038 R)
• M6: 2,046,798 km (0.101 R)
• M7: 2,403,140 km (0.066 R)
• M8: 2,817,078 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.1

Radius: 13.4

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.57 AU - 0.89 AU

Year: 423 Days

Day: 12.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 80,042,649 km

• M1: 166,652 km (0.052 R)
• M2: 591,660 km (0.113 R)
• M3: 1,219,522 km (0.103 R)
• M4: 1,781,561 km (0.072 R)
• M5: 2,379,953 km (0.041 R)
• M6: 2,930,921 km (0.119 R)
• M7: 3,516,448 km (0.12 R)
• M8: 4,151,341 km (0.099 R)
• M9: 4,830,515 km (0.072 R)
• M10: 5,531,381 km (0.107 R)
• M11: 6,132,914 km (0.057 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.1

Radius: 11.5

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.87 AU - 0.95 AU

Year: 589 Days

Day: 8.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 80,042,649 km

• M1: 143,913 km (0.074 R)
• M2: 708,346 km (0.082 R)
• M3: 1,223,711 km (0.034 R)
• M4: 1,674,000 km (0.111 R)
• M5: 2,779,379 km (0.104 R)
• M6: 3,450,924 km (0.07 R)
• M7: 3,875,333 km (0.097 R)
• M8: 4,258,154 km (0.112 R)
• M9: 4,830,066 km (0.113 R)
• M10: 5,274,671 km (0.069 R)
• M11: 6,837,670 km (0.089 R)
• M12: 7,783,278 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.5

Radius: 11.2

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.11 AU - 1.19 AU

Year: 836 Days

Day: 10 Hours

Environment

Temp: -179 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 80,042,649 km

• M1: 139,276 km (0.069 R)
• M2: 716,125 km (0.097 R)
• M3: 1,211,743 km (0.116 R)
• M4: 2,545,408 km (0.116 R)
• M5: 3,509,416 km (0.085 R)
• M6: 4,083,423 km (0.086 R)
• M7: 4,528,627 km (0.072 R)
• M8: 5,005,994 km (0.093 R)
• M9: 5,497,423 km (0.086 R)
• M10: 5,876,653 km (0.074 R)
• M11: 6,230,901 km (0.104 R)
• M12: 6,890,777 km (0.094 R)
• M13: 7,743,635 km (0.067 R)
• M14: 8,093,843 km (0.099 R)
• M15: 9,460,121 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.6

Radius: 10.7

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.18 AU - 1.94 AU

Year: 1322 Days

Day: 14 Hours

Environment

Temp: -187 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 80,042,649 km

• M1: 133,142 km (0.119 R)
• M2: 637,586 km (0.079 R)
• M3: 1,012,179 km (0.079 R)
• M4: 1,578,856 km (0.115 R)
• M5: 1,990,100 km (0.119 R)
• M6: 2,347,939 km (0.086 R)
• M7: 2,786,560 km (0.051 R)
• M8: 3,195,859 km (0.076 R)
• M9: 3,690,879 km (0.107 R)
• M10: 5,693,097 km (0.039 R)
• M11: 6,422,985 km (0.043 R)
• M12: 6,975,001 km (0.109 R)
• M13: 7,311,446 km (0.116 R)
• M14: 8,121,369 km (0.078 R)
• M15: 9,681,525 km (0.07 R)
• M16: 10,161,884 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 296.3

Radius: 5.3

Gravity: 10.55 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 6.2 AU - 7.42 AU

Year: 12053 Days

Day: 20 Hours

Environment

Temp: -219 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 80,042,649 km

• M1: 67,169 km (0.119 R)
• M2: 233,821 km (0.118 R)
• M3: 479,012 km (0.1 R)
• M4: 786,436 km (0.072 R)
• M5: 1,107,623 km (0.099 R)
• M6: 1,868,926 km (0.099 R)
• M7: 2,176,051 km (0.103 R)
• M8: 3,257,194 km (0.09 R)
• M9: 3,557,737 km (0.074 R)
• M10: 3,776,449 km (0.114 R)
• M11: 4,627,661 km (0.069 R)
• M12: 7,498,444 km (0.085 R)
• M13: 8,657,079 km (0.096 R)
• M14: 11,116,618 km (0.097 R)
• M15: 11,532,201 km (0.069 R)
• M16: 13,886,273 km (0.062 R)
• M17: 16,209,528 km (0.083 R)
• M18: 19,593,282 km (0.09 R)
• M19: 20,974,818 km (0.077 R)
• M20: 22,419,934 km (0.106 R)
• M21: 29,551,863 km (0.059 R)
• M22: 30,449,300 km (0.07 R)
• M23: 31,364,839 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 774

Radius: 3.7

Gravity: 56.54 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 7.55 AU - 11.73 AU

Year: 20301 Days

Day: 18.2 Hours

Environment

Temp: -240 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 80,042,649 km

• M1: 46,375 km (0.119 R)
• M2: 180,864 km (0.109 R)
• M3: 569,070 km (0.077 R)
• M4: 715,227 km (0.106 R)
• M5: 994,227 km (0.119 R)
• M6: 1,165,816 km (0.063 R)
• M7: 1,878,500 km (0.083 R)
• M8: 2,338,065 km (0.097 R)
• M9: 2,716,847 km (0.114 R)
• M10: 4,032,710 km (0.09 R)
• M11: 4,230,927 km (0.108 R)
• M12: 4,470,284 km (0.091 R)
• M13: 7,190,870 km (0.065 R)
• M14: 9,926,118 km (0.078 R)
• M15: 10,409,917 km (0.104 R)
• M16: 11,164,938 km (0.083 R)
• M17: 12,503,091 km (0.113 R)
• M18: 16,982,051 km (0.051 R)
• M19: 20,918,569 km (0.06 R)
• M20: 22,015,122 km (0.101 R)
• M21: 23,149,373 km (0.114 R)
• M22: 23,465,473 km (0.086 R)
• M23: 24,539,586 km (0.085 R)
• M24: 24,978,207 km (0.047 R)
• M25: 25,199,462 km (0.106 R)
• M26: 27,250,299 km (0.097 R)
• M27: 37,862,772 km (0.102 R)
• M28: 39,938,443 km (0.098 R)
• M29: 51,106,073 km (0.109 R)
• M30: 55,120,981 km (0.067 R)
• M31: 58,753,217 km (0.116 R)
• M32: 69,284,907 km (0.098 R)
• M33: 75,338,236 km (0.099 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: 540 - 16,056 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit