🌌 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: 1.3

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.38 AU - 0.64 AU

Year: 239 Days

Day: 47.6 Hours

Environment

Temp: -120 °C

Axial Tilt: 38.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.4

Radius: 9.8

Gravity: 6.55 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.73 AU - 0.73 AU

Year: 409 Days

Day: 5.3 Hours

Environment

Temp: -131 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 22,604,522 km

• M1: 121,922 km (0.098 R)
• M2: 455,376 km (0.068 R)
• M3: 822,938 km (0.095 R)
• M4: 1,430,305 km (0.07 R)
• M5: 1,907,223 km (0.073 R)
• M6: 2,450,712 km (0.095 R)
• M7: 2,882,153 km (0.076 R)
• M8: 3,352,189 km (0.11 R)
• M9: 3,962,399 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.4

Radius: 14.7

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.64 AU - 0.94 AU

Year: 461 Days

Day: 5.5 Hours

Environment

Temp: -137 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 22,604,522 km

• M1: 208,839 km (0.03 R)
• M2: 681,867 km (0.048 R)
• M3: 1,276,219 km (0.109 R)
• M4: 1,965,566 km (0.111 R)
• M5: 2,614,522 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.6

Radius: 11.5

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.71 AU - 2.07 AU

Year: 1705 Days

Day: 7 Hours

Environment

Temp: -191 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 22,604,522 km

• M1: 143,016 km (0.095 R)
• M2: 514,916 km (0.047 R)
• M3: 1,158,935 km (0.055 R)
• M4: 1,972,448 km (0.044 R)
• M5: 2,978,942 km (0.06 R)
• M6: 3,410,083 km (0.105 R)
• M7: 4,125,760 km (0.109 R)
• M8: 5,047,881 km (0.118 R)
• M9: 5,953,846 km (0.114 R)
• M10: 6,910,524 km (0.095 R)
• M11: 7,383,104 km (0.111 R)
• M12: 8,026,674 km (0.112 R)
• M13: 8,486,837 km (0.119 R)
• M14: 8,867,414 km (0.036 R)
• M15: 9,595,058 km (0.092 R)
• M16: 10,255,084 km (0.114 R)
• M17: 11,094,178 km (0.104 R)
• M18: 11,550,003 km (0.083 R)
• M19: 13,118,088 km (0.113 R)
• M20: 15,753,404 km (0.044 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.8

Radius: 10.4

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.85 AU - 2.33 AU

Year: 1982 Days

Day: 8.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 22,604,522 km

• M1: 129,552 km (0.059 R)
• M2: 456,722 km (0.076 R)
• M3: 785,688 km (0.083 R)
• M4: 1,258,716 km (0.058 R)
• M5: 1,764,806 km (0.052 R)
• M6: 2,211,805 km (0.082 R)
• M7: 2,733,602 km (0.111 R)
• M8: 3,555,792 km (0.1 R)
• M9: 4,314,103 km (0.083 R)
• M10: 5,951,302 km (0.038 R)
• M11: 6,641,098 km (0.119 R)
• M12: 7,997,951 km (0.046 R)
• M13: 8,870,406 km (0.113 R)
• M14: 9,565,437 km (0.104 R)
• M15: 10,048,639 km (0.078 R)
• M16: 10,439,687 km (0.114 R)
• M17: 10,914,960 km (0.078 R)
• M18: 13,003,496 km (0.09 R)
• M19: 13,468,296 km (0.091 R)
• M20: 14,208,357 km (0.103 R)
• M21: 14,838,014 km (0.073 R)
• M22: 16,056,639 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.6

Radius: 10.6

Gravity: 8.58 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 2.61 AU - 4.21 AU

Year: 4131 Days

Day: 6.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 22,604,522 km

• M1: 131,945 km (0.104 R)
• M2: 465,249 km (0.086 R)
• M3: 949,049 km (0.114 R)
• M4: 1,459,178 km (0.061 R)
• M5: 2,573,831 km (0.107 R)
• M6: 3,134,075 km (0.119 R)
• M7: 3,796,046 km (0.066 R)
• M8: 4,855,498 km (0.113 R)
• M9: 5,231,138 km (0.101 R)
• M10: 7,409,732 km (0.101 R)
• M11: 9,094,803 km (0.068 R)
• M12: 10,616,213 km (0.109 R)
• M13: 11,021,773 km (0.048 R)
• M14: 12,202,848 km (0.102 R)
• M15: 14,483,318 km (0.119 R)
• M16: 19,002,370 km (0.105 R)
• M17: 20,418,763 km (0.062 R)
• M18: 21,401,322 km (0.114 R)
• M19: 22,049,380 km (0.032 R)
• M20: 23,765,267 km (0.074 R)
• M21: 24,149,734 km (0.102 R)
• M22: 24,852,245 km (0.076 R)
• M23: 25,648,854 km (0.113 R)
• M24: 27,125,236 km (0.111 R)
• M25: 29,356,937 km (0.068 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.8

Radius: 8

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.09 AU - 4.67 AU

Year: 5014 Days

Day: 10.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 22,604,522 km

• M1: 100,380 km (0.097 R)
• M2: 391,498 km (0.11 R)
• M3: 1,373,757 km (0.091 R)
• M4: 1,650,513 km (0.098 R)
• M5: 2,233,347 km (0.108 R)
• M6: 2,997,792 km (0.048 R)
• M7: 3,603,962 km (0.11 R)
• M8: 3,926,047 km (0.061 R)
• M9: 4,558,995 km (0.108 R)
• M10: 4,936,281 km (0.104 R)
• M11: 5,359,942 km (0.1 R)
• M12: 6,166,574 km (0.044 R)
• M13: 6,717,692 km (0.108 R)
• M14: 7,364,703 km (0.068 R)
• M15: 7,687,087 km (0.114 R)
• M16: 7,985,385 km (0.074 R)
• M17: 9,862,090 km (0.09 R)
• M18: 10,575,223 km (0.092 R)
• M19: 13,060,792 km (0.112 R)
• M20: 14,116,504 km (0.101 R)
• M21: 14,413,904 km (0.088 R)
• M22: 15,021,571 km (0.111 R)
• M23: 17,681,122 km (0.05 R)
• M24: 19,394,766 km (0.098 R)
• M25: 20,072,743 km (0.094 R)
• M26: 21,281,045 km (0.075 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 543 - 14,023 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit