🌌 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: 492

Radius: 8.7

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.46 AU - 0.64 AU

Year: 287 Days

Day: 14.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,736,044 km

• M1: 108,159 km (0.101 R)
• M2: 383,868 km (0.08 R)
• M3: 738,116 km (0.104 R)
• M4: 1,376,899 km (0.081 R)
• M5: 1,745,807 km (0.117 R)
• M6: 2,353,773 km (0.071 R)
• M7: 2,649,528 km (0.074 R)
• M8: 2,941,842 km (0.099 R)
• M9: 3,463,191 km (0.081 R)
• M10: 3,893,584 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.7

Radius: 9.7

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.7 AU - 0.92 AU

Year: 512 Days

Day: 5.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 64,736,044 km

• M1: 120,576 km (0.093 R)
• M2: 449,841 km (0.071 R)
• M3: 1,291,030 km (0.101 R)
• M4: 1,932,057 km (0.1 R)
• M5: 2,284,060 km (0.033 R)
• M6: 2,697,549 km (0.057 R)
• M7: 3,017,239 km (0.112 R)
• M8: 3,699,107 km (0.089 R)
• M9: 4,170,489 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.9

Radius: 8.2

Gravity: 9.47 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.36 AU - 2 AU

Year: 1531 Days

Day: 8.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,736,044 km

• M1: 102,026 km (0.115 R)
• M2: 449,990 km (0.12 R)
• M3: 780,302 km (0.084 R)
• M4: 1,172,997 km (0.114 R)
• M5: 1,792,631 km (0.1 R)
• M6: 2,057,420 km (0.096 R)
• M7: 2,336,420 km (0.038 R)
• M8: 2,985,824 km (0.106 R)
• M9: 3,376,574 km (0.075 R)
• M10: 4,390,698 km (0.031 R)
• M11: 4,836,649 km (0.076 R)
• M12: 5,248,791 km (0.076 R)
• M13: 5,573,119 km (0.092 R)
• M14: 5,933,650 km (0.041 R)
• M15: 8,610,853 km (0.07 R)
• M16: 9,498,866 km (0.101 R)
• M17: 10,179,088 km (0.056 R)
• M18: 10,891,473 km (0.109 R)
• M19: 12,836,544 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.9

Radius: 9.8

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.16 AU - 2.34 AU

Year: 2372 Days

Day: 7.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 64,736,044 km

• M1: 126,560 km (0.114 R)
• M2: 816,356 km (0.101 R)
• M3: 1,380,040 km (0.095 R)
• M4: 3,435,665 km (0.095 R)
• M5: 4,017,750 km (0.109 R)
• M6: 4,634,841 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.8

Radius: 12.1

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.46 AU - 2.78 AU

Year: 2981 Days

Day: 12 Hours

Environment

Temp: -207 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 64,736,044 km

• M1: 154,385 km (0.096 R)
• M2: 571,763 km (0.11 R)
• M3: 1,108,371 km (0.068 R)
• M4: 1,662,481 km (0.088 R)
• M5: 2,152,564 km (0.079 R)
• M6: 2,571,288 km (0.104 R)
• M7: 3,501,937 km (0.108 R)
• M8: 4,189,937 km (0.118 R)
• M9: 5,401,680 km (0.097 R)
• M10: 5,995,135 km (0.098 R)
• M11: 7,160,801 km (0.095 R)
• M12: 7,560,527 km (0.064 R)
• M13: 7,975,062 km (0.12 R)
• M14: 8,472,176 km (0.073 R)
• M15: 10,435,798 km (0.059 R)
• M16: 10,910,472 km (0.099 R)
• M17: 11,733,559 km (0.11 R)
• M18: 14,355,711 km (0.077 R)
• M19: 14,745,862 km (0.084 R)
• M20: 18,239,571 km (0.113 R)
• M21: 18,697,490 km (0.099 R)
• M22: 19,636,516 km (0.094 R)
• M23: 20,361,018 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.7

Radius: 12.5

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.04 AU - 3.48 AU

Year: 4137 Days

Day: 14 Hours

Environment

Temp: -214 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 64,736,044 km

• M1: 156,031 km (0.094 R)
• M2: 596,447 km (0.107 R)
• M3: 1,022,950 km (0.099 R)
• M4: 1,823,897 km (0.102 R)
• M5: 2,490,505 km (0.027 R)
• M6: 4,218,361 km (0.101 R)
• M7: 4,753,921 km (0.069 R)
• M8: 6,233,145 km (0.09 R)
• M9: 6,767,359 km (0.068 R)
• M10: 7,162,596 km (0.1 R)
• M11: 9,176,633 km (0.069 R)
• M12: 11,176,307 km (0.11 R)
• M13: 16,311,553 km (0.12 R)
• M14: 16,785,031 km (0.101 R)
• M15: 18,008,741 km (0.07 R)
• M16: 20,702,251 km (0.079 R)
• M17: 22,181,026 km (0.12 R)
• M18: 24,337,479 km (0.032 R)
• M19: 26,386,671 km (0.101 R)
• M20: 28,463,239 km (0.037 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 226.4

Radius: 3.7

Gravity: 16.54 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 4.77 AU - 6.99 AU

Year: 10022 Days

Day: 24.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 68.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 64,736,044 km

• M1: 46,076 km (0.069 R)
• M2: 269,725 km (0.091 R)
• M3: 444,006 km (0.079 R)
• M4: 582,833 km (0.073 R)
• M5: 789,278 km (0.064 R)
• M6: 977,173 km (0.102 R)
• M7: 1,173,296 km (0.088 R)
• M8: 1,406,968 km (0.051 R)
• M9: 1,592,469 km (0.079 R)
• M10: 1,952,252 km (0.1 R)
• M11: 2,167,224 km (0.113 R)
• M12: 2,662,842 km (0.103 R)
• M13: 4,289,270 km (0.102 R)
• M14: 4,520,698 km (0.083 R)
• M15: 5,064,636 km (0.07 R)
• M16: 6,512,893 km (0.112 R)
• M17: 7,793,301 km (0.079 R)
• M18: 7,983,590 km (0.038 R)
• M19: 9,749,144 km (0.065 R)
• M20: 10,375,959 km (0.104 R)
• M21: 10,934,258 km (0.099 R)
• M22: 11,414,467 km (0.099 R)
• M23: 11,858,623 km (0.105 R)
• M24: 12,834,001 km (0.064 R)
• M25: 13,806,238 km (0.094 R)
• M26: 16,449,632 km (0.1 R)
• M27: 18,253,932 km (0.107 R)
• M28: 18,792,784 km (0.068 R)
• M29: 20,043,721 km (0.097 R)
• M30: 23,098,061 km (0.091 R)
• M31: 30,766,148 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 999.2

Radius: 4.1

Gravity: 59.44 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 4.82 AU - 7.16 AU

Year: 10305 Days

Day: 23.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 64,736,044 km

• M1: 51,611 km (0.119 R)
• M2: 203,004 km (0.058 R)
• M3: 578,944 km (0.106 R)
• M4: 1,701,676 km (0.065 R)
• M5: 1,953,150 km (0.09 R)
• M6: 2,572,036 km (0.115 R)
• M7: 6,026,999 km (0.061 R)
• M8: 7,708,030 km (0.109 R)
• M9: 10,918,101 km (0.058 R)
• M10: 12,321,180 km (0.072 R)
• M11: 12,566,221 km (0.079 R)
• M12: 13,002,748 km (0.064 R)
• M13: 15,197,797 km (0.11 R)
• M14: 17,473,630 km (0.105 R)
• M15: 17,938,879 km (0.074 R)
• M16: 19,715,653 km (0.079 R)
• M17: 27,163,233 km (0.069 R)
• M18: 28,527,416 km (0.11 R)
• M19: 29,064,024 km (0.058 R)
• M20: 30,046,732 km (0.085 R)
• M21: 31,848,339 km (0.099 R)
• M22: 33,839,936 km (0.111 R)
• M23: 39,509,546 km (0.111 R)
• M24: 42,359,235 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 381.4

Radius: 8

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 7.29 AU - 8.97 AU

Year: 16295 Days

Day: 19.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,736,044 km

• M1: 99,483 km (0.097 R)
• M2: 815,907 km (0.065 R)
• M3: 1,270,535 km (0.087 R)
• M4: 2,815,731 km (0.027 R)
• M5: 4,313,206 km (0.057 R)
• M6: 6,871,778 km (0.092 R)
• M7: 9,518,314 km (0.101 R)
• M8: 10,246,557 km (0.041 R)
• M9: 13,278,905 km (0.113 R)
• M10: 15,276,037 km (0.097 R)
• M11: 17,086,770 km (0.114 R)
• M12: 20,106,103 km (0.084 R)
• M13: 22,365,630 km (0.101 R)
• M14: 25,766,438 km (0.119 R)
• M15: 31,152,111 km (0.051 R)
• M16: 31,717,292 km (0.085 R)
• M17: 41,444,145 km (0.086 R)
• M18: 50,152,836 km (0.093 R)
• M19: 54,604,270 km (0.12 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 533.2

Radius: 3.2

Gravity: 52.07 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 6.96 AU - 10.28 AU

Year: 17790 Days

Day: 16.8 Hours

Environment

Temp: -241 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,736,044 km

• M1: 54,454 km (0.115 R)
• M2: 363,224 km (0.105 R)
• M3: 483,500 km (0.103 R)
• M4: 2,407,329 km (0.12 R)
• M5: 3,290,405 km (0.053 R)
• M6: 6,502,720 km (0.106 R)
• M7: 11,462,488 km (0.077 R)
• M8: 13,259,607 km (0.116 R)
• M9: 13,874,903 km (0.032 R)
• M10: 16,840,980 km (0.09 R)
• M11: 20,472,319 km (0.116 R)
• M12: 26,576,361 km (0.077 R)
• M13: 29,117,879 km (0.102 R)
• M14: 35,972,902 km (0.102 R)
• M15: 41,046,813 km (0.056 R)
• M16: 43,232,737 km (0.119 R)
• M17: 47,046,286 km (0.073 R)
• M18: 54,291,610 km (0.098 R)
• M19: 55,159,128 km (0.068 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 390 - 13,280 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit