🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.7

Radius: 9.5

Gravity: 11.03 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.5 AU - 0.7 AU

Year: 310 Days

Day: 7.8 Hours

Environment

Temp: -144 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,150,460 km

• M1: 118,182 km (0.061 R)
• M2: 463,604 km (0.064 R)
• M3: 920,476 km (0.099 R)
• M4: 1,658,891 km (0.117 R)
• M5: 2,372,921 km (0.114 R)
• M6: 2,701,289 km (0.037 R)
• M7: 3,580,027 km (0.11 R)
• M8: 3,924,850 km (0.113 R)
• M9: 4,428,247 km (0.112 R)
• M10: 4,724,600 km (0.057 R)
• M11: 5,140,332 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.1

Radius: 8.3

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.93 AU - 1.47 AU

Year: 877 Days

Day: 10.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 78,150,460 km

• M1: 103,372 km (0.094 R)
• M2: 374,294 km (0.041 R)
• M3: 661,671 km (0.103 R)
• M4: 1,168,060 km (0.069 R)
• M5: 1,515,277 km (0.047 R)
• M6: 2,291,241 km (0.07 R)
• M7: 2,773,545 km (0.11 R)
• M8: 3,983,642 km (0.099 R)
• M9: 4,338,488 km (0.105 R)
• M10: 4,698,271 km (0.087 R)
• M11: 5,301,300 km (0.071 R)
• M12: 5,567,285 km (0.082 R)
• M13: 5,935,894 km (0.094 R)
• M14: 6,887,636 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 243.9

Radius: 11

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.12 AU - 1.36 AU

Year: 921 Days

Day: 6.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,150,460 km

• M1: 136,882 km (0.069 R)
• M2: 558,449 km (0.083 R)
• M3: 940,671 km (0.075 R)
• M4: 1,387,819 km (0.108 R)
• M5: 1,802,654 km (0.113 R)
• M6: 2,206,718 km (0.057 R)
• M7: 2,692,612 km (0.116 R)
• M8: 3,510,464 km (0.113 R)
• M9: 4,176,174 km (0.092 R)
• M10: 4,764,543 km (0.085 R)
• M11: 5,304,890 km (0.089 R)
• M12: 5,813,224 km (0.1 R)
• M13: 6,765,863 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.5

Radius: 11.1

Gravity: 5.95 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.23 AU - 1.25 AU

Year: 921 Days

Day: 14.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 78,150,460 km

• M1: 138,079 km (0.085 R)
• M2: 518,656 km (0.051 R)
• M3: 873,502 km (0.027 R)
• M4: 1,311,973 km (0.043 R)
• M5: 1,814,024 km (0.118 R)
• M6: 2,487,214 km (0.081 R)
• M7: 3,115,974 km (0.073 R)
• M8: 3,710,775 km (0.109 R)
• M9: 4,263,240 km (0.08 R)
• M10: 4,869,859 km (0.119 R)
• M11: 6,561,961 km (0.086 R)
• M12: 7,110,237 km (0.115 R)
• M13: 7,516,994 km (0.108 R)
• M14: 8,169,241 km (0.089 R)
• M15: 8,696,274 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717.2

Radius: 9.3

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.7 AU - 1.86 AU

Year: 1584 Days

Day: 13.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 78,150,460 km

• M1: 115,639 km (0.111 R)
• M2: 432,637 km (0.09 R)
• M3: 726,746 km (0.077 R)
• M4: 1,429,258 km (0.101 R)
• M5: 1,882,091 km (0.095 R)
• M6: 2,243,370 km (0.073 R)
• M7: 2,597,318 km (0.101 R)
• M8: 3,323,167 km (0.087 R)
• M9: 3,785,425 km (0.059 R)
• M10: 6,077,264 km (0.101 R)
• M11: 7,378,017 km (0.078 R)
• M12: 10,044,300 km (0.063 R)
• M13: 10,694,602 km (0.089 R)
• M14: 11,592,638 km (0.061 R)
• M15: 12,231,571 km (0.087 R)
• M16: 12,696,521 km (0.115 R)
• M17: 13,744,304 km (0.114 R)
• M18: 14,036,020 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.8

Radius: 9.6

Gravity: 6.9 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.64 AU - 2.74 AU

Year: 2161 Days

Day: 14.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 78,150,460 km

• M1: 119,379 km (0.036 R)
• M2: 622,327 km (0.099 R)
• M3: 1,288,636 km (0.047 R)
• M4: 1,866,383 km (0.077 R)
• M5: 2,456,696 km (0.114 R)
• M6: 3,314,490 km (0.12 R)
• M7: 3,895,678 km (0.096 R)
• M8: 4,947,950 km (0.093 R)
• M9: 5,446,410 km (0.085 R)
• M10: 5,829,530 km (0.096 R)
• M11: 6,333,824 km (0.097 R)
• M12: 7,516,844 km (0.117 R)
• M13: 8,362,671 km (0.089 R)
• M14: 8,679,668 km (0.113 R)
• M15: 10,064,346 km (0.116 R)
• M16: 10,940,391 km (0.082 R)
• M17: 12,307,716 km (0.06 R)
• M18: 15,807,259 km (0.03 R)
• M19: 16,293,003 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.7

Radius: 10.7

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 5.33 AU - 6.09 AU

Year: 9099 Days

Day: 11.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 176.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,150,460 km

• M1: 262,095 km (0.11 R)
• M2: 1,213,688 km (0.087 R)
• M3: 2,046,200 km (0.056 R)
• M4: 2,397,306 km (0.066 R)
• M5: 4,087,762 km (0.117 R)
• M6: 6,589,637 km (0.11 R)
• M7: 7,470,469 km (0.116 R)
• M8: 10,275,878 km (0.032 R)
• M9: 12,730,928 km (0.067 R)
• M10: 13,932,498 km (0.103 R)
• M11: 15,495,347 km (0.078 R)
• M12: 15,962,691 km (0.088 R)
• M13: 27,486,514 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 235.9

Radius: 7.9

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 6.05 AU - 7.03 AU

Year: 11153 Days

Day: 18.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 78,150,460 km

• M1: 102,175 km (0.045 R)
• M2: 413,189 km (0.063 R)
• M3: 681,867 km (0.094 R)
• M4: 1,358,199 km (0.111 R)
• M5: 1,751,641 km (0.099 R)
• M6: 1,998,478 km (0.072 R)
• M7: 2,692,462 km (0.041 R)
• M8: 4,286,129 km (0.099 R)
• M9: 6,291,937 km (0.077 R)
• M10: 6,563,158 km (0.104 R)
• M11: 7,999,148 km (0.089 R)
• M12: 9,151,799 km (0.105 R)
• M13: 10,178,190 km (0.115 R)
• M14: 12,195,368 km (0.115 R)
• M15: 14,759,924 km (0.054 R)
• M16: 15,179,397 km (0.118 R)
• M17: 17,596,450 km (0.082 R)
• M18: 18,966,616 km (0.109 R)
• M19: 22,072,567 km (0.111 R)
• M20: 24,823,074 km (0.11 R)
• M21: 25,076,193 km (0.036 R)
• M22: 26,896,800 km (0.026 R)
• M23: 27,613,074 km (0.045 R)
• M24: 28,618,521 km (0.098 R)
• M25: 28,990,123 km (0.119 R)
• M26: 29,364,865 km (0.109 R)
• M27: 30,605,331 km (0.073 R)
• M28: 31,880,353 km (0.085 R)
• M29: 33,395,181 km (0.097 R)
• M30: 33,910,696 km (0.059 R)
• M31: 34,431,296 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 175.7

Radius: 5.8

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 6.48 AU - 8.2 AU

Year: 13261 Days

Day: 23.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 78,150,460 km

• M1: 76,445 km (0.073 R)
• M2: 397,482 km (0.114 R)
• M3: 592,108 km (0.061 R)
• M4: 1,072,617 km (0.12 R)
• M5: 1,885,681 km (0.117 R)
• M6: 2,385,039 km (0.087 R)
• M7: 2,637,859 km (0.098 R)
• M8: 2,829,345 km (0.105 R)
• M9: 3,550,855 km (0.109 R)
• M10: 4,576,049 km (0.042 R)
• M11: 5,350,667 km (0.113 R)
• M12: 6,549,694 km (0.09 R)
• M13: 7,645,498 km (0.05 R)
• M14: 8,236,859 km (0.111 R)
• M15: 8,815,952 km (0.113 R)
• M16: 11,255,445 km (0.109 R)
• M17: 14,053,074 km (0.067 R)
• M18: 17,083,778 km (0.081 R)
• M19: 18,367,627 km (0.1 R)
• M20: 23,899,606 km (0.057 R)
• M21: 26,374,404 km (0.084 R)
• M22: 26,906,823 km (0.057 R)
• M23: 31,527,452 km (0.116 R)
• M24: 32,429,976 km (0.106 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 865.8

Radius: 7

Gravity: 17.67 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 8.73 AU - 9.61 AU

Year: 18518 Days

Day: 24.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 78,150,460 km

• M1: 87,365 km (0.064 R)
• M2: 749,785 km (0.112 R)
• M3: 2,550,344 km (0.077 R)
• M4: 3,851,996 km (0.105 R)
• M5: 4,105,714 km (0.035 R)
• M6: 4,576,648 km (0.108 R)
• M7: 5,008,537 km (0.075 R)
• M8: 8,828,668 km (0.106 R)
• M9: 13,649,908 km (0.117 R)
• M10: 19,792,995 km (0.107 R)
• M11: 24,524,626 km (0.109 R)
• M12: 29,589,860 km (0.114 R)
• M13: 33,816,748 km (0.072 R)
• M14: 35,035,821 km (0.042 R)
• M15: 35,586,940 km (0.049 R)
• M16: 40,658,008 km (0.103 R)
• M17: 41,419,611 km (0.074 R)
• M18: 45,371,089 km (0.115 R)
• M19: 61,072,583 km (0.111 R)
• M20: 62,473,716 km (0.05 R)
• M21: 63,896,093 km (0.092 R)
• M22: 69,585,150 km (0.084 R)
• M23: 73,784,811 km (0.089 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 170 - 13,347 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit