🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.45 AU - 0.57 AU

Year: 232 Days

Day: 17.5 Hours

Environment

Temp: -124 °C

Axial Tilt: 16 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.8

Radius: 11.5

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.92 AU - 1.04 AU

Year: 617 Days

Day: 14 Hours

Environment

Temp: -162 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,080,468 km

• M1: 143,614 km (0.087 R)
• M2: 591,211 km (0.103 R)
• M3: 1,026,541 km (0.058 R)
• M4: 1,500,167 km (0.061 R)
• M5: 2,155,556 km (0.114 R)
• M6: 2,743,775 km (0.061 R)
• M7: 3,594,089 km (0.075 R)
• M8: 3,980,201 km (0.082 R)
• M9: 4,440,214 km (0.046 R)
• M10: 5,239,965 km (0.092 R)
• M11: 6,075,768 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.7

Radius: 10.2

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.97 AU - 1.41 AU

Year: 825 Days

Day: 11.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,080,468 km

• M1: 127,457 km (0.089 R)
• M2: 451,935 km (0.112 R)
• M3: 804,837 km (0.111 R)
• M4: 1,227,301 km (0.116 R)
• M5: 1,629,270 km (0.107 R)
• M6: 2,004,013 km (0.062 R)
• M7: 2,361,851 km (0.081 R)
• M8: 2,750,955 km (0.107 R)
• M9: 3,234,904 km (0.066 R)
• M10: 3,983,043 km (0.06 R)
• M11: 4,504,541 km (0.081 R)
• M12: 4,894,543 km (0.115 R)
• M13: 5,215,580 km (0.09 R)
• M14: 6,019,669 km (0.117 R)
• M15: 6,904,241 km (0.071 R)
• M16: 7,493,956 km (0.102 R)
• M17: 8,240,599 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.9

Radius: 10.2

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.19 AU - 1.37 AU

Year: 921 Days

Day: 8.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,080,468 km

• M1: 129,253 km (0.056 R)
• M2: 478,863 km (0.116 R)
• M3: 826,379 km (0.103 R)
• M4: 1,195,586 km (0.095 R)
• M5: 1,717,533 km (0.076 R)
• M6: 2,201,781 km (0.104 R)
• M7: 2,931,071 km (0.113 R)
• M8: 3,339,024 km (0.077 R)
• M9: 3,712,421 km (0.119 R)
• M10: 4,052,606 km (0.103 R)
• M11: 4,951,540 km (0.093 R)
• M12: 5,476,479 km (0.108 R)
• M13: 6,038,069 km (0.088 R)
• M14: 6,384,987 km (0.098 R)
• M15: 6,853,527 km (0.08 R)
• M16: 7,931,978 km (0.076 R)
• M17: 8,298,792 km (0.046 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.3

Radius: 11.4

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.65 AU - 1.73 AU

Year: 1397 Days

Day: 9.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,080,468 km

• M1: 141,819 km (0.109 R)
• M2: 565,630 km (0.105 R)
• M3: 921,523 km (0.071 R)
• M4: 1,361,789 km (0.105 R)
• M5: 1,726,359 km (0.107 R)
• M6: 2,334,475 km (0.055 R)
• M7: 2,767,261 km (0.116 R)
• M8: 3,662,754 km (0.101 R)
• M9: 4,058,740 km (0.055 R)
• M10: 4,689,145 km (0.099 R)
• M11: 5,157,387 km (0.057 R)
• M12: 5,716,284 km (0.097 R)
• M13: 6,444,377 km (0.084 R)
• M14: 7,024,368 km (0.117 R)
• M15: 7,590,446 km (0.083 R)
• M16: 8,867,713 km (0.099 R)
• M17: 9,361,087 km (0.084 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 239.3

Radius: 7.9

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 9.55 AU - 12.05 AU

Year: 22567 Days

Day: 21.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 148.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 58,080,468 km

• M1: 98,286 km (0.108 R)
• M2: 459,415 km (0.117 R)
• M3: 889,808 km (0.095 R)
• M4: 1,426,416 km (0.082 R)
• M5: 1,792,332 km (0.098 R)
• M6: 2,520,874 km (0.084 R)
• M7: 3,229,818 km (0.098 R)
• M8: 3,809,061 km (0.053 R)
• M9: 7,259,386 km (0.047 R)
• M10: 7,789,711 km (0.078 R)
• M11: 9,027,035 km (0.088 R)
• M12: 9,536,116 km (0.076 R)
• M13: 11,469,818 km (0.117 R)
• M14: 11,946,138 km (0.078 R)
• M15: 12,311,905 km (0.045 R)
• M16: 13,454,234 km (0.109 R)
• M17: 16,317,388 km (0.071 R)
• M18: 18,249,444 km (0.12 R)
• M19: 22,011,681 km (0.113 R)
• M20: 24,364,257 km (0.11 R)
• M21: 25,551,017 km (0.058 R)
• M22: 26,775,775 km (0.101 R)
• M23: 29,896,536 km (0.119 R)
• M24: 35,455,743 km (0.12 R)
• M25: 36,211,661 km (0.085 R)
• M26: 36,593,584 km (0.114 R)
• M27: 47,340,994 km (0.11 R)
• M28: 55,173,340 km (0.109 R)
• M29: 55,679,131 km (0.086 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: 296 - 16,416 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit