🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.5

Radius: 13.4

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.43 AU - 0.63 AU

Year: 262 Days

Day: 5.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 43,234,039 km

• M1: 168,896 km (0.105 R)
• M2: 899,382 km (0.108 R)
• M3: 1,484,759 km (0.076 R)
• M4: 2,541,219 km (0.114 R)
• M5: 3,115,076 km (0.054 R)
• M6: 3,808,313 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.8

Radius: 10.4

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.48 AU - 0.6 AU

Year: 269 Days

Day: 7.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 43,234,039 km

• M1: 129,402 km (0.038 R)
• M2: 620,981 km (0.083 R)
• M3: 957,426 km (0.101 R)
• M4: 1,815,969 km (0.072 R)
• M5: 2,253,094 km (0.118 R)
• M6: 2,996,894 km (0.045 R)
• M7: 3,341,418 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.6

Radius: 9.3

Gravity: 7.72 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.52 AU - 0.62 AU

Year: 292 Days

Day: 11.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,234,039 km

• M1: 115,938 km (0.094 R)
• M2: 422,614 km (0.046 R)
• M3: 743,651 km (0.028 R)
• M4: 1,044,941 km (0.082 R)
• M5: 1,435,840 km (0.12 R)
• M6: 1,901,539 km (0.096 R)
• M7: 2,190,711 km (0.078 R)
• M8: 2,717,296 km (0.03 R)
• M9: 3,016,192 km (0.118 R)
• M10: 3,578,531 km (0.111 R)
• M11: 4,247,084 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.1

Radius: 10

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.39 AU - 1.45 AU

Year: 1148 Days

Day: 12.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,234,039 km

• M1: 124,765 km (0.114 R)
• M2: 607,966 km (0.098 R)
• M3: 1,013,974 km (0.099 R)
• M4: 1,634,207 km (0.072 R)
• M5: 2,080,906 km (0.1 R)
• M6: 2,584,303 km (0.085 R)
• M7: 3,390,037 km (0.098 R)
• M8: 4,041,386 km (0.115 R)
• M9: 5,049,676 km (0.109 R)
• M10: 5,693,845 km (0.117 R)
• M11: 9,533,573 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.9

Radius: 13.8

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.7 AU - 2.28 AU

Year: 1904 Days

Day: 5.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 43,234,039 km

• M1: 171,888 km (0.075 R)
• M2: 671,994 km (0.055 R)
• M3: 1,149,061 km (0.107 R)
• M4: 1,597,705 km (0.119 R)
• M5: 2,032,736 km (0.108 R)
• M6: 2,548,400 km (0.093 R)
• M7: 3,249,715 km (0.062 R)
• M8: 5,154,095 km (0.039 R)
• M9: 6,202,926 km (0.089 R)
• M10: 7,072,389 km (0.06 R)
• M11: 8,083,671 km (0.071 R)
• M12: 8,722,304 km (0.088 R)
• M13: 10,578,813 km (0.107 R)
• M14: 11,071,888 km (0.113 R)
• M15: 11,580,371 km (0.06 R)
• M16: 14,591,477 km (0.098 R)
• M17: 15,783,323 km (0.114 R)
• M18: 16,327,860 km (0.105 R)
• M19: 17,717,923 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50.1

Radius: 12.7

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 2.71 AU - 3.71 AU

Year: 3901 Days

Day: 7.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 43,234,039 km

• M1: 159,771 km (0.119 R)
• M2: 666,459 km (0.099 R)
• M3: 1,475,933 km (0.117 R)
• M4: 3,026,814 km (0.098 R)
• M5: 3,517,345 km (0.057 R)
• M6: 3,931,582 km (0.046 R)
• M7: 7,691,575 km (0.094 R)
• M8: 9,055,758 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.2

Radius: 8.1

Gravity: 12.1 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.6 AU - 4.2 AU

Year: 4252 Days

Day: 8.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 111.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 43,234,039 km

• M1: 100,829 km (0.036 R)
• M2: 371,152 km (0.12 R)
• M3: 703,708 km (0.101 R)
• M4: 970,741 km (0.118 R)
• M5: 1,265,897 km (0.061 R)
• M6: 1,621,043 km (0.06 R)
• M7: 2,325,349 km (0.042 R)
• M8: 3,103,258 km (0.101 R)
• M9: 4,113,343 km (0.114 R)
• M10: 4,719,065 km (0.085 R)
• M11: 5,164,118 km (0.12 R)
• M12: 6,446,471 km (0.094 R)
• M13: 7,469,122 km (0.114 R)
• M14: 8,074,096 km (0.111 R)
• M15: 8,520,347 km (0.097 R)
• M16: 13,054,209 km (0.113 R)
• M17: 14,143,132 km (0.099 R)
• M18: 15,404,093 km (0.067 R)
• M19: 17,219,912 km (0.107 R)
• M20: 18,978,734 km (0.064 R)
• M21: 19,502,476 km (0.11 R)
• M22: 21,271,471 km (0.045 R)
• M23: 21,979,518 km (0.095 R)
• M24: 22,267,045 km (0.089 R)
• M25: 22,923,181 km (0.065 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.2

Radius: 14.5

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.36 AU - 4.8 AU

Year: 6648 Days

Day: 8.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 43,234,039 km

• M1: 181,013 km (0.098 R)
• M2: 892,351 km (0.048 R)
• M3: 1,419,833 km (0.119 R)
• M4: 1,934,300 km (0.084 R)
• M5: 2,556,927 km (0.072 R)
• M6: 4,787,730 km (0.099 R)
• M7: 5,298,158 km (0.047 R)
• M8: 5,782,406 km (0.049 R)
• M9: 6,463,077 km (0.055 R)
• M10: 8,102,520 km (0.063 R)
• M11: 10,005,106 km (0.058 R)
• M12: 10,465,568 km (0.089 R)
• M13: 11,478,944 km (0.117 R)
• M14: 14,040,359 km (0.11 R)
• M15: 17,885,921 km (0.076 R)
• M16: 22,228,448 km (0.049 R)
• M17: 25,485,942 km (0.068 R)
• M18: 27,947,425 km (0.098 R)
• M19: 29,423,059 km (0.109 R)
• M20: 33,033,753 km (0.069 R)
• M21: 34,369,662 km (0.107 R)
• M22: 35,103,888 km (0.082 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.4

Radius: 13.5

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 4.03 AU - 6.09 AU

Year: 7720 Days

Day: 11.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 43,234,039 km

• M1: 173,534 km (0.1 R)
• M2: 726,746 km (0.076 R)
• M3: 1,845,739 km (0.071 R)
• M4: 2,296,627 km (0.119 R)
• M5: 2,722,532 km (0.106 R)
• M6: 3,223,834 km (0.064 R)
• M7: 3,688,336 km (0.072 R)
• M8: 5,050,723 km (0.086 R)
• M9: 6,258,277 km (0.095 R)
• M10: 6,986,969 km (0.093 R)
• M11: 8,185,547 km (0.095 R)
• M12: 8,614,145 km (0.065 R)
• M13: 9,470,144 km (0.084 R)
• M14: 11,777,990 km (0.074 R)
• M15: 13,354,004 km (0.118 R)
• M16: 15,066,600 km (0.075 R)
• M17: 15,581,665 km (0.067 R)
• M18: 17,059,393 km (0.03 R)
• M19: 18,047,338 km (0.09 R)
• M20: 19,372,924 km (0.09 R)
• M21: 23,826,453 km (0.115 R)
• M22: 24,526,571 km (0.062 R)
• M23: 25,876,093 km (0.099 R)
• M24: 34,363,379 km (0.115 R)
• M25: 35,596,514 km (0.064 R)
• M26: 40,207,121 km (0.052 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 390 - 13,676 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit