🌌 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: 101.2

Radius: 11.8

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.45 AU - 0.61 AU

Year: 257 Days

Day: 6.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 77,405,682 km

• M1: 147,354 km (0.05 R)
• M2: 528,529 km (0.112 R)
• M3: 897,138 km (0.112 R)
• M4: 1,462,768 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.7

Radius: 9.9

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.73 AU - 0.79 AU

Year: 442 Days

Day: 12.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 77,405,682 km

• M1: 123,119 km (0.1 R)
• M2: 518,357 km (0.079 R)
• M3: 853,755 km (0.112 R)
• M4: 1,430,604 km (0.118 R)
• M5: 1,931,009 km (0.119 R)
• M6: 2,536,432 km (0.116 R)
• M7: 3,242,983 km (0.118 R)
• M8: 3,779,590 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.4

Radius: 13.3

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.83 AU - 1.21 AU

Year: 687 Days

Day: 6.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 77,405,682 km

• M1: 165,455 km (0.071 R)
• M2: 628,909 km (0.113 R)
• M3: 1,233,883 km (0.098 R)
• M4: 2,090,481 km (0.093 R)
• M5: 2,673,314 km (0.085 R)
• M6: 3,738,002 km (0.098 R)
• M7: 4,405,358 km (0.069 R)
• M8: 5,117,743 km (0.078 R)
• M9: 5,979,576 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 617.5

Radius: 13.8

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.26 AU - 2.86 AU

Year: 2731 Days

Day: 6.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 77,405,682 km

• M1: 171,589 km (0.073 R)
• M2: 604,974 km (0.111 R)
• M3: 1,190,500 km (0.078 R)
• M4: 1,740,122 km (0.116 R)
• M5: 2,255,487 km (0.096 R)
• M6: 3,031,900 km (0.062 R)
• M7: 3,637,921 km (0.096 R)
• M8: 4,578,742 km (0.119 R)
• M9: 6,409,072 km (0.092 R)
• M10: 6,970,662 km (0.108 R)
• M11: 9,411,202 km (0.035 R)
• M12: 11,139,506 km (0.112 R)
• M13: 11,787,714 km (0.074 R)
• M14: 13,473,682 km (0.11 R)
• M15: 14,209,853 km (0.118 R)
• M16: 15,463,483 km (0.096 R)
• M17: 18,919,044 km (0.083 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 69.6

Radius: 5.9

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 5.65 AU - 8.35 AU

Year: 12350 Days

Day: 22 Hours

Environment

Temp: -240 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,405,682 km

• M1: 73,453 km (0.075 R)
• M2: 324,927 km (0.114 R)
• M3: 529,876 km (0.088 R)
• M4: 987,645 km (0.059 R)
• M5: 1,527,095 km (0.117 R)
• M6: 2,859,713 km (0.075 R)
• M7: 4,183,804 km (0.094 R)
• M8: 6,740,581 km (0.042 R)
• M9: 7,354,231 km (0.088 R)
• M10: 7,864,360 km (0.08 R)
• M11: 8,181,657 km (0.114 R)
• M12: 8,617,885 km (0.059 R)
• M13: 9,184,711 km (0.119 R)
• M14: 11,522,327 km (0.088 R)
• M15: 13,022,046 km (0.1 R)
• M16: 13,666,813 km (0.109 R)
• M17: 14,384,882 km (0.092 R)
• M18: 25,440,015 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 723.4

Radius: 5.4

Gravity: 24.81 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 6.34 AU - 9.86 AU

Year: 15373 Days

Day: 19.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 77,405,682 km

• M1: 117,734 km (0.097 R)
• M2: 353,649 km (0.12 R)
• M3: 1,477,728 km (0.081 R)
• M4: 2,255,936 km (0.059 R)
• M5: 3,251,510 km (0.113 R)
• M6: 4,100,478 km (0.088 R)
• M7: 7,028,108 km (0.094 R)
• M8: 7,385,796 km (0.051 R)
• M9: 8,040,736 km (0.042 R)
• M10: 9,094,803 km (0.113 R)
• M11: 9,846,681 km (0.05 R)
• M12: 12,674,380 km (0.117 R)
• M13: 13,817,907 km (0.036 R)
• M14: 18,069,478 km (0.111 R)
• M15: 18,740,275 km (0.063 R)
• M16: 27,578,068 km (0.062 R)
• M17: 28,918,016 km (0.119 R)
• M18: 33,823,331 km (0.026 R)
• M19: 38,839,497 km (0.114 R)
• M20: 43,133,255 km (0.071 R)
• M21: 43,430,207 km (0.113 R)
• M22: 51,306,235 km (0.094 R)
• M23: 54,705,997 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 574.4

Radius: 7.3

Gravity: 10.78 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 6.77 AU - 10.35 AU

Year: 16701 Days

Day: 17.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 77,405,682 km

• M1: 92,451 km (0.083 R)
• M2: 654,341 km (0.061 R)
• M3: 936,632 km (0.098 R)
• M4: 1,341,295 km (0.098 R)
• M5: 2,133,864 km (0.037 R)
• M6: 3,257,194 km (0.105 R)
• M7: 3,976,760 km (0.115 R)
• M8: 8,568,517 km (0.07 R)
• M9: 12,876,038 km (0.106 R)
• M10: 13,272,772 km (0.097 R)
• M11: 16,746,135 km (0.116 R)
• M12: 17,219,014 km (0.113 R)
• M13: 18,273,978 km (0.085 R)
• M14: 22,830,729 km (0.081 R)
• M15: 23,805,210 km (0.113 R)
• M16: 34,739,019 km (0.085 R)
• M17: 36,026,907 km (0.114 R)
• M18: 42,363,275 km (0.097 R)
• M19: 44,579,866 km (0.068 R)
• M20: 44,881,156 km (0.082 R)
• M21: 45,335,635 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 706.4

Radius: 3

Gravity: 78.49 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 8.61 AU - 10.83 AU

Year: 20208 Days

Day: 19 Hours

Environment

Temp: -239 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 77,405,682 km

• M1: 37,399 km (0.083 R)
• M2: 167,699 km (0.111 R)
• M3: 309,069 km (0.08 R)
• M4: 451,935 km (0.118 R)
• M5: 1,175,091 km (0.026 R)
• M6: 1,350,570 km (0.114 R)
• M7: 2,548,849 km (0.059 R)
• M8: 2,843,108 km (0.113 R)
• M9: 3,469,474 km (0.071 R)
• M10: 3,647,046 km (0.044 R)
• M11: 4,350,007 km (0.113 R)
• M12: 6,274,883 km (0.108 R)
• M13: 7,229,467 km (0.109 R)
• M14: 7,519,088 km (0.045 R)
• M15: 9,139,682 km (0.11 R)
• M16: 10,300,262 km (0.054 R)
• M17: 11,041,968 km (0.113 R)
• M18: 11,361,210 km (0.096 R)
• M19: 11,490,612 km (0.043 R)
• M20: 11,884,803 km (0.077 R)
• M21: 12,424,253 km (0.086 R)
• M22: 13,770,484 km (0.074 R)
• M23: 16,416,870 km (0.115 R)
• M24: 17,426,357 km (0.05 R)
• M25: 18,121,837 km (0.101 R)
• M26: 19,475,249 km (0.116 R)
• M27: 21,186,649 km (0.053 R)
• M28: 21,978,470 km (0.073 R)
• M29: 22,995,736 km (0.12 R)
• M30: 28,436,311 km (0.119 R)
• M31: 32,286,960 km (0.111 R)
• M32: 39,058,658 km (0.088 R)
• M33: 39,501,617 km (0.045 R)
• M34: 41,612,593 km (0.114 R)
• M35: 48,394,612 km (0.101 R)
• M36: 62,068,605 km (0.088 R)
• M37: 62,671,485 km (0.114 R)
• M38: 63,888,912 km (0.095 R)
• M39: 70,649,390 km (0.077 R)
• M40: 71,086,963 km (0.067 R)
• M41: 76,942,374 km (0.118 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 288 - 15,310 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit