🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.95 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375

Radius: 9.6

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.43 AU - 2.38 AU

Year: 1691 Days

Day: 10.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,133,458 km

• M1: 119,529 km (0.037 R)
• M2: 436,676 km (0.116 R)
• M3: 818,151 km (0.093 R)
• M4: 1,343,987 km (0.076 R)
• M5: 2,226,615 km (0.052 R)
• M6: 2,774,442 km (0.111 R)
• M7: 3,130,335 km (0.076 R)
• M8: 3,563,421 km (0.053 R)
• M9: 4,605,969 km (0.097 R)
• M10: 5,147,663 km (0.106 R)
• M11: 5,861,993 km (0.118 R)
• M12: 6,522,168 km (0.088 R)
• M13: 8,126,904 km (0.069 R)
• M14: 8,601,578 km (0.063 R)
• M15: 8,977,069 km (0.073 R)
• M16: 11,258,437 km (0.097 R)
• M17: 11,707,978 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375

Radius: 11.7

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.59 AU - 2.57 AU

Year: 1937 Days

Day: 13.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,133,458 km

• M1: 145,559 km (0.08 R)
• M2: 543,489 km (0.049 R)
• M3: 933,491 km (0.114 R)
• M4: 1,400,834 km (0.091 R)
• M5: 2,045,452 km (0.098 R)
• M6: 3,776,598 km (0.092 R)
• M7: 4,209,235 km (0.101 R)
• M8: 4,694,082 km (0.115 R)
• M9: 6,377,058 km (0.062 R)
• M10: 7,044,265 km (0.076 R)
• M11: 7,461,194 km (0.099 R)
• M12: 7,977,755 km (0.077 R)
• M13: 11,240,036 km (0.071 R)
• M14: 11,702,293 km (0.118 R)
• M15: 13,126,615 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.7

Radius: 9.7

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 3.6 AU - 4.26 AU

Year: 5030 Days

Day: 7.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,133,458 km

• M1: 120,725 km (0.112 R)
• M2: 515,215 km (0.095 R)
• M3: 892,800 km (0.11 R)
• M4: 1,481,468 km (0.11 R)
• M5: 2,090,181 km (0.04 R)
• M6: 2,624,695 km (0.101 R)
• M7: 3,564,319 km (0.032 R)
• M8: 5,281,254 km (0.036 R)
• M9: 6,529,947 km (0.089 R)
• M10: 7,413,921 km (0.072 R)
• M11: 7,725,832 km (0.105 R)
• M12: 8,237,457 km (0.102 R)
• M13: 8,628,656 km (0.074 R)
• M14: 10,578,215 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.6

Radius: 10.1

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 4.4 AU - 5.94 AU

Year: 7590 Days

Day: 7.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,133,458 km

• M1: 129,552 km (0.072 R)
• M2: 939,624 km (0.088 R)
• M3: 1,367,474 km (0.081 R)
• M4: 2,010,595 km (0.077 R)
• M5: 4,229,880 km (0.084 R)
• M6: 5,071,218 km (0.083 R)
• M7: 5,772,683 km (0.077 R)
• M8: 6,115,112 km (0.113 R)
• M9: 8,464,248 km (0.07 R)
• M10: 11,407,286 km (0.113 R)
• M11: 15,030,397 km (0.046 R)
• M12: 16,043,624 km (0.116 R)
• M13: 25,596,794 km (0.073 R)
• M14: 28,626,001 km (0.102 R)
• M15: 33,158,069 km (0.086 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 193.6

Radius: 3.3

Gravity: 17.78 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 6.07 AU - 9.91 AU

Year: 14583 Days

Day: 22.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 44,133,458 km

• M1: 40,990 km (0.101 R)
• M2: 246,687 km (0.108 R)
• M3: 599,738 km (0.119 R)
• M4: 801,545 km (0.089 R)
• M5: 1,453,942 km (0.097 R)
• M6: 1,629,270 km (0.08 R)
• M7: 1,773,632 km (0.071 R)
• M8: 2,104,543 km (0.049 R)
• M9: 2,456,547 km (0.112 R)
• M10: 2,627,238 km (0.093 R)
• M11: 3,034,892 km (0.061 R)
• M12: 3,321,671 km (0.036 R)
• M13: 3,602,018 km (0.041 R)
• M14: 3,847,508 km (0.099 R)
• M15: 5,214,533 km (0.116 R)
• M16: 5,657,642 km (0.098 R)
• M17: 12,916,131 km (0.065 R)
• M18: 13,029,526 km (0.057 R)
• M19: 20,653,482 km (0.102 R)
• M20: 21,916,686 km (0.1 R)
• M21: 23,482,527 km (0.113 R)
• M22: 26,194,886 km (0.084 R)
• M23: 33,712,030 km (0.077 R)
• M24: 38,307,826 km (0.05 R)
• M25: 38,777,414 km (0.115 R)
• M26: 39,608,280 km (0.104 R)
• M27: 40,088,340 km (0.042 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 224.3

Radius: 5.8

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 8.1 AU - 8.5 AU

Year: 15439 Days

Day: 20 Hours

Environment

Temp: -229 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,133,458 km

• M1: 73,303 km (0.051 R)
• M2: 364,869 km (0.106 R)
• M3: 658,679 km (0.114 R)
• M4: 1,191,846 km (0.099 R)
• M5: 1,713,793 km (0.048 R)
• M6: 2,509,055 km (0.09 R)
• M7: 3,267,068 km (0.091 R)
• M8: 4,734,922 km (0.039 R)
• M9: 6,303,306 km (0.104 R)
• M10: 7,604,658 km (0.069 R)
• M11: 7,810,056 km (0.039 R)
• M12: 9,541,801 km (0.095 R)
• M13: 15,577,177 km (0.05 R)
• M14: 19,643,996 km (0.1 R)
• M15: 26,374,404 km (0.079 R)
• M16: 27,902,546 km (0.028 R)
• M17: 32,085,901 km (0.041 R)
• M18: 34,606,475 km (0.105 R)
• M19: 43,214,636 km (0.092 R)
• M20: 44,001,371 km (0.118 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 451 - 18,610 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit