🌌 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: 326.5

Radius: 13.9

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.57 AU - 0.63 AU

Year: 321 Days

Day: 13.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 66,841,543 km

• M1: 173,085 km (0.053 R)
• M2: 756,816 km (0.068 R)
• M3: 1,302,100 km (0.087 R)
• M4: 2,326,247 km (0.094 R)
• M5: 3,609,946 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.2

Radius: 9.2

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.03 AU - 1.35 AU

Year: 896 Days

Day: 8.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,841,543 km

• M1: 114,442 km (0.08 R)
• M2: 545,583 km (0.081 R)
• M3: 922,420 km (0.093 R)
• M4: 1,263,204 km (0.072 R)
• M5: 1,722,171 km (0.105 R)
• M6: 2,237,835 km (0.101 R)
• M7: 2,560,667 km (0.089 R)
• M8: 3,103,857 km (0.101 R)
• M9: 3,423,846 km (0.111 R)
• M10: 3,765,977 km (0.103 R)
• M11: 4,536,107 km (0.056 R)
• M12: 6,239,578 km (0.083 R)
• M13: 6,578,267 km (0.078 R)
• M14: 7,177,556 km (0.068 R)
• M15: 7,644,750 km (0.098 R)
• M16: 8,562,234 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.2

Radius: 14.5

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.08 AU - 1.58 AU

Year: 1059 Days

Day: 9.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,841,543 km

• M1: 180,265 km (0.071 R)
• M2: 1,896,003 km (0.049 R)
• M3: 2,518,929 km (0.049 R)
• M4: 3,248,069 km (0.094 R)
• M5: 4,218,062 km (0.105 R)
• M6: 4,743,300 km (0.117 R)
• M7: 5,817,412 km (0.063 R)
• M8: 6,285,654 km (0.09 R)
• M9: 6,949,419 km (0.077 R)
• M10: 7,581,171 km (0.119 R)
• M11: 8,389,897 km (0.098 R)
• M12: 9,107,070 km (0.082 R)
• M13: 9,989,996 km (0.074 R)
• M14: 10,599,009 km (0.032 R)
• M15: 11,750,614 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.3

Radius: 14

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.23 AU - 1.61 AU

Year: 1168 Days

Day: 8.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,841,543 km

• M1: 174,132 km (0.088 R)
• M2: 616,493 km (0.116 R)
• M3: 1,102,387 km (0.116 R)
• M4: 1,954,496 km (0.109 R)
• M5: 2,811,243 km (0.105 R)
• M6: 3,415,619 km (0.102 R)
• M7: 3,966,887 km (0.059 R)
• M8: 4,443,805 km (0.068 R)
• M9: 4,994,923 km (0.111 R)
• M10: 5,552,774 km (0.109 R)
• M11: 6,298,070 km (0.089 R)
• M12: 7,599,871 km (0.1 R)
• M13: 8,754,617 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.7

Radius: 11.6

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 3.81 AU - 3.89 AU

Year: 5214 Days

Day: 6.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 66,841,543 km

• M1: 144,212 km (0.082 R)
• M2: 600,187 km (0.089 R)
• M3: 1,193,641 km (0.073 R)
• M4: 1,581,249 km (0.079 R)
• M5: 2,360,505 km (0.057 R)
• M6: 2,838,171 km (0.065 R)
• M7: 3,563,122 km (0.108 R)
• M8: 4,091,651 km (0.06 R)
• M9: 4,947,351 km (0.119 R)
• M10: 5,839,702 km (0.117 R)
• M11: 6,983,079 km (0.068 R)
• M12: 8,572,706 km (0.104 R)
• M13: 13,168,801 km (0.097 R)
• M14: 14,004,904 km (0.099 R)
• M15: 15,527,361 km (0.118 R)
• M16: 18,154,599 km (0.116 R)
• M17: 19,543,765 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.9

Radius: 9.6

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 4.08 AU - 6.52 AU

Year: 8422 Days

Day: 5.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,841,543 km

• M1: 119,379 km (0.051 R)
• M2: 433,983 km (0.099 R)
• M3: 916,437 km (0.095 R)
• M4: 2,245,165 km (0.078 R)
• M5: 4,250,674 km (0.09 R)
• M6: 7,716,707 km (0.105 R)
• M7: 8,846,620 km (0.108 R)
• M8: 9,293,169 km (0.077 R)
• M9: 10,231,447 km (0.057 R)
• M10: 11,755,700 km (0.09 R)
• M11: 15,741,436 km (0.116 R)
• M12: 16,967,390 km (0.101 R)
• M13: 18,091,469 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.8

Radius: 13.8

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 4.91 AU - 5.85 AU

Year: 8614 Days

Day: 11.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,841,543 km

• M1: 174,581 km (0.083 R)
• M2: 1,187,358 km (0.064 R)
• M3: 1,715,289 km (0.091 R)
• M4: 2,985,674 km (0.063 R)
• M5: 4,055,449 km (0.067 R)
• M6: 5,028,882 km (0.071 R)
• M7: 6,409,371 km (0.117 R)
• M8: 8,298,044 km (0.11 R)
• M9: 11,668,634 km (0.077 R)
• M10: 31,337,612 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 64.2

Radius: 5.6

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 6.55 AU - 7.07 AU

Year: 12267 Days

Day: 17.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 66,841,543 km

• M1: 69,713 km (0.102 R)
• M2: 1,073,664 km (0.09 R)
• M3: 1,489,546 km (0.1 R)
• M4: 2,444,280 km (0.104 R)
• M5: 2,873,177 km (0.088 R)
• M6: 5,942,177 km (0.11 R)
• M7: 6,231,798 km (0.117 R)
• M8: 6,591,881 km (0.118 R)
• M9: 7,962,047 km (0.113 R)
• M10: 9,708,752 km (0.029 R)
• M11: 12,013,457 km (0.063 R)
• M12: 13,048,674 km (0.039 R)
• M13: 13,938,931 km (0.086 R)
• M14: 15,403,195 km (0.047 R)
• M15: 18,146,970 km (0.064 R)
• M16: 19,192,060 km (0.05 R)
• M17: 20,668,891 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 775.9

Radius: 5.1

Gravity: 29.83 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 7.31 AU - 8.59 AU

Year: 15473 Days

Day: 23.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 66,841,543 km

• M1: 63,429 km (0.118 R)
• M2: 528,679 km (0.103 R)
• M3: 1,348,774 km (0.052 R)
• M4: 2,419,895 km (0.117 R)
• M5: 3,670,085 km (0.108 R)
• M6: 5,153,647 km (0.049 R)
• M7: 5,948,011 km (0.119 R)
• M8: 11,541,177 km (0.114 R)
• M9: 12,891,447 km (0.076 R)
• M10: 13,160,125 km (0.113 R)
• M11: 13,778,263 km (0.107 R)
• M12: 14,415,550 km (0.102 R)
• M13: 15,072,135 km (0.117 R)
• M14: 26,904,728 km (0.067 R)
• M15: 27,453,902 km (0.099 R)
• M16: 30,668,760 km (0.044 R)
• M17: 31,147,623 km (0.111 R)
• M18: 33,364,215 km (0.111 R)
• M19: 40,068,593 km (0.067 R)
• M20: 40,497,340 km (0.114 R)
• M21: 43,734,489 km (0.097 R)
• M22: 50,385,460 km (0.093 R)
• M23: 50,551,514 km (0.041 R)
• M24: 56,417,995 km (0.113 R)
• M25: 56,597,213 km (0.109 R)
• M26: 58,408,993 km (0.064 R)
• M27: 58,592,250 km (0.091 R)
• M28: 61,577,176 km (0.04 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 322 - 16,633 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit