🌌 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: 554.7

Radius: 14.1

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.45 AU - 0.75 AU

Year: 321 Days

Day: 12.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,051,910 km

• M1: 175,329 km (0.099 R)
• M2: 625,469 km (0.111 R)
• M3: 1,496,876 km (0.103 R)
• M4: 1,967,960 km (0.083 R)
• M5: 2,445,327 km (0.077 R)
• M6: 2,971,612 km (0.114 R)
• M7: 3,420,855 km (0.043 R)
• M8: 4,119,925 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128.1

Radius: 10.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.52 AU - 0.76 AU

Year: 353 Days

Day: 12.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,051,910 km

• M1: 129,552 km (0.075 R)
• M2: 505,940 km (0.039 R)
• M3: 970,741 km (0.095 R)
• M4: 1,428,061 km (0.106 R)
• M5: 1,893,610 km (0.108 R)
• M6: 2,242,322 km (0.093 R)
• M7: 2,810,346 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.1

Radius: 13.8

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.83 AU - 1.29 AU

Year: 753 Days

Day: 11.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 33,051,910 km

• M1: 171,589 km (0.063 R)
• M2: 859,440 km (0.105 R)
• M3: 1,374,655 km (0.1 R)
• M4: 2,017,776 km (0.101 R)
• M5: 2,456,846 km (0.056 R)
• M6: 2,925,686 km (0.042 R)
• M7: 3,805,022 km (0.075 R)
• M8: 4,626,913 km (0.093 R)
• M9: 5,123,278 km (0.107 R)
• M10: 5,600,495 km (0.068 R)
• M11: 6,107,333 km (0.049 R)
• M12: 6,893,769 km (0.119 R)
• M13: 7,588,651 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621

Radius: 10.3

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.91 AU - 2.07 AU

Year: 1938 Days

Day: 8.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 33,051,910 km

• M1: 131,197 km (0.051 R)
• M2: 755,320 km (0.083 R)
• M3: 1,370,167 km (0.112 R)
• M4: 2,567,548 km (0.079 R)
• M5: 4,320,087 km (0.097 R)
• M6: 5,036,661 km (0.118 R)
• M7: 5,435,190 km (0.105 R)
• M8: 5,830,727 km (0.064 R)
• M9: 7,189,075 km (0.112 R)
• M10: 7,695,165 km (0.119 R)
• M11: 9,589,523 km (0.076 R)
• M12: 14,276,125 km (0.113 R)
• M13: 15,258,684 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.4

Radius: 13.4

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 2.29 AU - 3.17 AU

Year: 3114 Days

Day: 7.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,051,910 km

• M1: 222,153 km (0.108 R)
• M2: 660,026 km (0.118 R)
• M3: 1,087,128 km (0.06 R)
• M4: 2,022,414 km (0.078 R)
• M5: 2,460,287 km (0.074 R)
• M6: 5,011,229 km (0.076 R)
• M7: 5,747,849 km (0.052 R)
• M8: 8,003,935 km (0.068 R)
• M9: 8,838,242 km (0.094 R)
• M10: 12,156,622 km (0.094 R)
• M11: 12,766,233 km (0.087 R)
• M12: 13,533,820 km (0.11 R)
• M13: 14,093,915 km (0.104 R)
• M14: 14,963,078 km (0.113 R)
• M15: 17,786,140 km (0.087 R)
• M16: 18,515,579 km (0.097 R)
• M17: 20,034,147 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 512.9

Radius: 5.6

Gravity: 16.36 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 5.44 AU - 7.8 AU

Year: 11757 Days

Day: 16.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 33,051,910 km

• M1: 69,713 km (0.114 R)
• M2: 295,157 km (0.115 R)
• M3: 930,499 km (0.056 R)
• M4: 1,443,320 km (0.051 R)
• M5: 1,671,008 km (0.119 R)
• M6: 2,622,899 km (0.053 R)
• M7: 2,963,833 km (0.103 R)
• M8: 3,734,112 km (0.113 R)
• M9: 4,875,095 km (0.105 R)
• M10: 5,128,514 km (0.047 R)
• M11: 6,721,432 km (0.063 R)
• M12: 7,115,623 km (0.053 R)
• M13: 11,331,590 km (0.104 R)
• M14: 18,443,622 km (0.119 R)
• M15: 22,087,078 km (0.09 R)
• M16: 22,781,512 km (0.108 R)
• M17: 25,232,374 km (0.112 R)
• M18: 31,623,045 km (0.036 R)
• M19: 31,841,907 km (0.063 R)
• M20: 35,482,670 km (0.104 R)
• M21: 39,644,932 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 316.6

Radius: 3.2

Gravity: 30.92 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 9.21 AU - 10.07 AU

Year: 20660 Days

Day: 22.2 Hours

Environment

Temp: -240 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 33,051,910 km

• M1: 39,793 km (0.027 R)
• M2: 184,305 km (0.076 R)
• M3: 290,519 km (0.108 R)
• M4: 395,986 km (0.099 R)
• M5: 499,058 km (0.071 R)
• M6: 715,078 km (0.069 R)
• M7: 1,289,234 km (0.049 R)
• M8: 1,504,955 km (0.106 R)
• M9: 2,218,387 km (0.091 R)
• M10: 2,442,933 km (0.091 R)
• M11: 2,913,419 km (0.073 R)
• M12: 3,521,833 km (0.103 R)
• M13: 4,396,083 km (0.065 R)
• M14: 4,950,792 km (0.091 R)
• M15: 5,122,530 km (0.098 R)
• M16: 7,282,275 km (0.037 R)
• M17: 8,683,408 km (0.065 R)
• M18: 11,342,062 km (0.113 R)
• M19: 14,082,396 km (0.076 R)
• M20: 17,947,257 km (0.051 R)
• M21: 19,434,259 km (0.109 R)
• M22: 21,270,424 km (0.076 R)
• M23: 22,556,816 km (0.084 R)
• M24: 23,796,832 km (0.073 R)
• M25: 25,689,844 km (0.119 R)
• M26: 30,111,957 km (0.1 R)
• M27: 31,262,664 km (0.106 R)
• M28: 36,158,404 km (0.073 R)
• M29: 38,922,075 km (0.106 R)
• M30: 39,192,398 km (0.102 R)
• M31: 46,820,543 km (0.084 R)
• M32: 47,279,659 km (0.094 R)
• M33: 49,620,417 km (0.036 R)
• M34: 50,257,405 km (0.098 R)
• M35: 55,039,600 km (0.092 R)
• M36: 56,930,068 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 50.7

Radius: 6.5

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 8 AU - 11.52 AU

Year: 21047 Days

Day: 22.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 33,051,910 km

• M1: 81,381 km (0.101 R)
• M2: 293,062 km (0.093 R)
• M3: 548,127 km (0.115 R)
• M4: 789,278 km (0.071 R)
• M5: 997,967 km (0.089 R)
• M6: 2,159,445 km (0.093 R)
• M7: 3,248,368 km (0.103 R)
• M8: 5,330,471 km (0.034 R)
• M9: 5,596,307 km (0.063 R)
• M10: 6,647,980 km (0.07 R)
• M11: 8,130,345 km (0.117 R)
• M12: 9,303,641 km (0.111 R)
• M13: 10,175,946 km (0.082 R)
• M14: 10,724,821 km (0.032 R)
• M15: 13,387,364 km (0.055 R)
• M16: 16,772,764 km (0.071 R)
• M17: 21,125,463 km (0.12 R)
• M18: 24,763,384 km (0.11 R)
• M19: 28,260,235 km (0.116 R)
• M20: 28,707,981 km (0.051 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: 392 - 12,547 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit