🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275.3

Radius: 12.4

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.61 AU - 0.87 AU

Year: 424 Days

Day: 13.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,176,131 km

• M1: 155,133 km (0.095 R)
• M2: 822,339 km (0.049 R)
• M3: 1,221,915 km (0.111 R)
• M4: 1,696,889 km (0.081 R)
• M5: 2,108,582 km (0.074 R)
• M6: 2,849,690 km (0.091 R)
• M7: 3,250,911 km (0.109 R)
• M8: 3,701,351 km (0.057 R)
• M9: 4,292,113 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.3

Radius: 9.2

Gravity: 11.26 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.72 AU - 0.84 AU

Year: 459 Days

Day: 12.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,176,131 km

• M1: 114,442 km (0.103 R)
• M2: 406,308 km (0.052 R)
• M3: 1,113,607 km (0.077 R)
• M4: 1,458,878 km (0.042 R)
• M5: 2,072,678 km (0.108 R)
• M6: 2,499,780 km (0.108 R)
• M7: 2,849,690 km (0.064 R)
• M8: 3,454,963 km (0.063 R)
• M9: 4,288,971 km (0.056 R)
• M10: 5,422,025 km (0.064 R)
• M11: 6,048,990 km (0.11 R)
• M12: 6,584,700 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.1

Radius: 13.6

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.61 AU - 0.97 AU

Year: 468 Days

Day: 8.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,176,131 km

• M1: 169,345 km (0.081 R)
• M2: 610,958 km (0.038 R)
• M3: 1,320,949 km (0.088 R)
• M4: 1,877,004 km (0.108 R)
• M5: 2,507,410 km (0.1 R)
• M6: 3,076,181 km (0.11 R)
• M7: 3,613,237 km (0.056 R)
• M8: 4,491,377 km (0.115 R)
• M9: 5,087,076 km (0.039 R)
• M10: 5,646,871 km (0.111 R)
• M11: 6,632,272 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.1

Radius: 14.9

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.83 AU - 2.27 AU

Year: 1957 Days

Day: 6.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,176,131 km

• M1: 185,352 km (0.079 R)
• M2: 664,663 km (0.028 R)
• M3: 1,318,855 km (0.111 R)
• M4: 2,213,899 km (0.073 R)
• M5: 2,806,606 km (0.107 R)
• M6: 3,719,751 km (0.081 R)
• M7: 4,607,914 km (0.116 R)
• M8: 5,585,087 km (0.089 R)
• M9: 6,398,899 km (0.098 R)
• M10: 7,466,729 km (0.044 R)
• M11: 8,487,734 km (0.111 R)
• M12: 9,741,365 km (0.102 R)
• M13: 10,431,460 km (0.078 R)
• M14: 10,999,183 km (0.069 R)
• M15: 11,991,317 km (0.077 R)
• M16: 17,027,379 km (0.074 R)
• M17: 17,603,331 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.5

Radius: 11.2

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.79 AU - 3.49 AU

Year: 3710 Days

Day: 8 Hours

Environment

Temp: -207 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 55,176,131 km

• M1: 140,772 km (0.079 R)
• M2: 1,180,926 km (0.083 R)
• M3: 1,565,841 km (0.111 R)
• M4: 2,087,339 km (0.114 R)
• M5: 2,659,850 km (0.069 R)
• M6: 3,209,024 km (0.084 R)
• M7: 3,913,480 km (0.12 R)
• M8: 5,222,013 km (0.092 R)
• M9: 5,656,146 km (0.067 R)
• M10: 6,892,423 km (0.117 R)
• M11: 7,290,203 km (0.06 R)
• M12: 7,703,243 km (0.116 R)
• M13: 9,218,819 km (0.05 R)
• M14: 11,466,378 km (0.112 R)
• M15: 12,335,242 km (0.031 R)
• M16: 12,694,726 km (0.063 R)
• M17: 14,301,706 km (0.076 R)
• M18: 15,987,375 km (0.061 R)
• M19: 19,025,259 km (0.09 R)
• M20: 19,933,168 km (0.072 R)
• M21: 20,366,553 km (0.076 R)
• M22: 20,996,660 km (0.118 R)
• M23: 21,769,781 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.3

Radius: 11.5

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 3.19 AU - 3.95 AU

Year: 4498 Days

Day: 8.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,176,131 km

• M1: 157,975 km (0.065 R)
• M2: 726,447 km (0.089 R)
• M3: 2,348,687 km (0.12 R)
• M4: 2,844,005 km (0.107 R)
• M5: 3,408,587 km (0.039 R)
• M6: 3,811,903 km (0.091 R)
• M7: 4,607,016 km (0.09 R)
• M8: 6,409,222 km (0.058 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 525.1

Radius: 5.4

Gravity: 18.01 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 4.61 AU - 7.59 AU

Year: 10047 Days

Day: 21.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 55,176,131 km

• M1: 67,618 km (0.076 R)
• M2: 240,404 km (0.113 R)
• M3: 434,731 km (0.117 R)
• M4: 689,796 km (0.094 R)
• M5: 1,414,448 km (0.053 R)
• M6: 1,719,029 km (0.116 R)
• M7: 2,100,055 km (0.109 R)
• M8: 2,673,464 km (0.079 R)
• M9: 3,536,194 km (0.067 R)
• M10: 4,926,258 km (0.11 R)
• M11: 5,725,709 km (0.029 R)
• M12: 7,578,479 km (0.118 R)
• M13: 8,247,031 km (0.098 R)
• M14: 9,557,658 km (0.115 R)
• M15: 12,414,080 km (0.044 R)
• M16: 15,397,660 km (0.072 R)
• M17: 16,127,548 km (0.119 R)
• M18: 17,229,935 km (0.067 R)
• M19: 19,127,285 km (0.093 R)
• M20: 20,917,821 km (0.087 R)
• M21: 22,563,248 km (0.101 R)
• M22: 24,028,111 km (0.102 R)
• M23: 28,013,996 km (0.11 R)
• M24: 41,547,667 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 685

Radius: 5.2

Gravity: 25.33 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 6.65 AU - 7.35 AU

Year: 12350 Days

Day: 18.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 55,176,131 km

• M1: 64,776 km (0.119 R)
• M2: 239,805 km (0.093 R)
• M3: 413,638 km (0.097 R)
• M4: 700,866 km (0.11 R)
• M5: 1,261,559 km (0.115 R)
• M6: 1,523,056 km (0.111 R)
• M7: 1,690,606 km (0.056 R)
• M8: 1,853,667 km (0.115 R)
• M9: 2,192,806 km (0.12 R)
• M10: 2,387,283 km (0.111 R)
• M11: 2,551,242 km (0.093 R)
• M12: 2,947,676 km (0.11 R)
• M13: 3,835,241 km (0.082 R)
• M14: 5,534,672 km (0.077 R)
• M15: 8,085,167 km (0.102 R)
• M16: 10,270,941 km (0.078 R)
• M17: 12,028,417 km (0.082 R)
• M18: 13,519,608 km (0.043 R)
• M19: 14,376,804 km (0.117 R)
• M20: 15,837,029 km (0.106 R)
• M21: 16,714,420 km (0.071 R)
• M22: 17,778,510 km (0.113 R)
• M23: 20,040,729 km (0.113 R)
• M24: 20,378,820 km (0.095 R)
• M25: 24,352,888 km (0.027 R)
• M26: 26,419,582 km (0.12 R)
• M27: 26,928,365 km (0.066 R)
• M28: 28,921,457 km (0.074 R)
• M29: 29,898,930 km (0.08 R)
• M30: 30,674,295 km (0.098 R)
• M31: 33,198,311 km (0.12 R)
• M32: 37,366,107 km (0.081 R)
• M33: 38,395,042 km (0.086 R)
• M34: 43,682,877 km (0.08 R)
• M35: 46,573,707 km (0.064 R)
• M36: 47,465,160 km (0.096 R)
• M37: 49,129,138 km (0.057 R)
• M38: 52,253,339 km (0.119 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 507 - 12,975 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit