🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96

Radius: 8.2

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.88 AU - 1.3 AU

Year: 759 Days

Day: 13.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 55,693,145 km

• M1: 102,624 km (0.102 R)
• M2: 630,854 km (0.082 R)
• M3: 1,743,264 km (0.103 R)
• M4: 2,640,702 km (0.108 R)
• M5: 3,197,056 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.6

Radius: 8.6

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.14 AU - 1.56 AU

Year: 1046 Days

Day: 11.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,693,145 km

• M1: 106,962 km (0.103 R)
• M2: 394,938 km (0.091 R)
• M3: 755,768 km (0.07 R)
• M4: 1,109,119 km (0.084 R)
• M5: 1,440,328 km (0.08 R)
• M6: 1,853,218 km (0.098 R)
• M7: 2,315,476 km (0.096 R)
• M8: 3,204,087 km (0.098 R)
• M9: 3,925,897 km (0.115 R)
• M10: 4,275,058 km (0.075 R)
• M11: 4,814,209 km (0.111 R)
• M12: 5,132,853 km (0.116 R)
• M13: 5,482,612 km (0.099 R)
• M14: 6,137,552 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.4

Radius: 12.4

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.06 AU - 3.16 AU

Year: 2812 Days

Day: 12.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,693,145 km

• M1: 154,235 km (0.084 R)
• M2: 553,363 km (0.1 R)
• M3: 958,324 km (0.04 R)
• M4: 1,357,900 km (0.107 R)
• M5: 1,923,978 km (0.07 R)
• M6: 2,737,641 km (0.044 R)
• M7: 3,179,254 km (0.108 R)
• M8: 3,768,819 km (0.113 R)
• M9: 4,262,642 km (0.103 R)
• M10: 5,084,832 km (0.076 R)
• M11: 6,009,795 km (0.099 R)
• M12: 6,636,760 km (0.036 R)
• M13: 8,337,688 km (0.058 R)
• M14: 9,211,638 km (0.099 R)
• M15: 9,947,510 km (0.101 R)
• M16: 11,940,304 km (0.094 R)
• M17: 12,353,493 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.3

Radius: 13.7

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.99 AU - 4.43 AU

Year: 4765 Days

Day: 12.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,693,145 km

• M1: 184,604 km (0.039 R)
• M2: 1,197,980 km (0.1 R)
• M3: 1,892,114 km (0.094 R)
• M4: 2,792,992 km (0.068 R)
• M5: 4,412,090 km (0.117 R)
• M6: 8,141,116 km (0.068 R)
• M7: 9,643,677 km (0.112 R)
• M8: 12,851,654 km (0.115 R)
• M9: 13,639,885 km (0.106 R)
• M10: 14,564,998 km (0.116 R)
• M11: 16,828,264 km (0.106 R)
• M12: 19,765,170 km (0.074 R)
• M13: 21,151,793 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 992.4

Radius: 11.7

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 3.97 AU - 4.31 AU

Year: 5617 Days

Day: 5.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,693,145 km

• M1: 145,858 km (0.117 R)
• M2: 542,442 km (0.112 R)
• M3: 910,453 km (0.117 R)
• M4: 1,528,292 km (0.087 R)
• M5: 1,978,432 km (0.103 R)
• M6: 2,481,829 km (0.102 R)
• M7: 2,851,036 km (0.08 R)
• M8: 3,964,044 km (0.077 R)
• M9: 5,257,468 km (0.106 R)
• M10: 5,714,639 km (0.117 R)
• M11: 7,853,888 km (0.114 R)
• M12: 8,953,582 km (0.106 R)
• M13: 12,545,726 km (0.09 R)
• M14: 14,571,281 km (0.038 R)
• M15: 15,170,570 km (0.077 R)
• M16: 18,073,368 km (0.109 R)
• M17: 22,415,296 km (0.091 R)
• M18: 24,364,856 km (0.086 R)
• M19: 26,513,231 km (0.03 R)
• M20: 33,609,256 km (0.096 R)
• M21: 35,724,420 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 552.6

Radius: 7.6

Gravity: 9.57 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 5.87 AU - 9.31 AU

Year: 13944 Days

Day: 17.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,693,145 km

• M1: 94,845 km (0.04 R)
• M2: 719,416 km (0.113 R)
• M3: 3,652,881 km (0.075 R)
• M4: 6,166,723 km (0.057 R)
• M5: 8,093,993 km (0.071 R)
• M6: 8,465,893 km (0.091 R)
• M7: 12,590,606 km (0.112 R)
• M8: 13,217,421 km (0.099 R)
• M9: 13,930,703 km (0.076 R)
• M10: 14,196,389 km (0.099 R)
• M11: 14,465,366 km (0.113 R)
• M12: 15,013,642 km (0.048 R)
• M13: 16,444,995 km (0.09 R)
• M14: 25,083,673 km (0.084 R)
• M15: 25,874,747 km (0.073 R)
• M16: 29,861,381 km (0.09 R)
• M17: 34,239,063 km (0.079 R)
• M18: 38,372,303 km (0.102 R)
• M19: 46,717,470 km (0.093 R)
• M20: 55,028,679 km (0.095 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 209 - 13,683 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit