🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.47 AU - 0.63 AU

Year: 263 Days

Day: 18.7 Hours

Environment

Temp: -113 °C

Axial Tilt: 18.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.3

Radius: 12.5

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.63 AU - 0.89 AU

Year: 428 Days

Day: 10.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,768,943 km

• M1: 155,432 km (0.095 R)
• M2: 550,819 km (0.112 R)
• M3: 1,583,045 km (0.097 R)
• M4: 2,387,133 km (0.078 R)
• M5: 2,846,548 km (0.101 R)
• M6: 4,038,395 km (0.059 R)
• M7: 4,725,348 km (0.092 R)
• M8: 5,489,045 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.4

Radius: 8.8

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.73 AU - 1.11 AU

Year: 570 Days

Day: 14.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,768,943 km

• M1: 109,506 km (0.095 R)
• M2: 383,419 km (0.091 R)
• M3: 969,095 km (0.045 R)
• M4: 1,279,361 km (0.106 R)
• M5: 1,722,470 km (0.088 R)
• M6: 2,961,739 km (0.117 R)
• M7: 4,044,378 km (0.106 R)
• M8: 4,521,147 km (0.092 R)
• M9: 5,620,841 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.5

Radius: 9.1

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.17 AU - 1.33 AU

Year: 902 Days

Day: 8.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,768,943 km

• M1: 113,246 km (0.117 R)
• M2: 469,139 km (0.087 R)
• M3: 918,681 km (0.06 R)
• M4: 1,314,516 km (0.088 R)
• M5: 1,874,013 km (0.065 R)
• M6: 2,639,654 km (0.08 R)
• M7: 3,020,830 km (0.065 R)
• M8: 3,532,155 km (0.041 R)
• M9: 4,251,272 km (0.118 R)
• M10: 4,629,605 km (0.12 R)
• M11: 5,527,043 km (0.05 R)
• M12: 6,173,904 km (0.042 R)
• M13: 6,515,735 km (0.075 R)
• M14: 7,755,303 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.5

Radius: 10.7

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.85 AU - 2.01 AU

Year: 1731 Days

Day: 13.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,768,943 km

• M1: 133,142 km (0.08 R)
• M2: 734,226 km (0.109 R)
• M3: 1,086,529 km (0.108 R)
• M4: 1,555,070 km (0.084 R)
• M5: 2,166,925 km (0.109 R)
• M6: 2,541,219 km (0.075 R)
• M7: 3,225,629 km (0.041 R)
• M8: 3,855,137 km (0.081 R)
• M9: 4,224,345 km (0.046 R)
• M10: 4,795,659 km (0.092 R)
• M11: 5,616,802 km (0.119 R)
• M12: 7,245,773 km (0.082 R)
• M13: 7,963,244 km (0.092 R)
• M14: 8,836,447 km (0.094 R)
• M15: 10,188,662 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 593.3

Radius: 13.3

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.91 AU - 2.09 AU

Year: 1826 Days

Day: 5 Hours

Environment

Temp: -179 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,768,943 km

• M1: 165,455 km (0.091 R)
• M2: 673,938 km (0.094 R)
• M3: 1,117,197 km (0.113 R)
• M4: 1,714,092 km (0.092 R)
• M5: 2,678,400 km (0.052 R)
• M6: 3,337,977 km (0.117 R)
• M7: 3,906,449 km (0.067 R)
• M8: 4,480,606 km (0.113 R)
• M9: 5,260,908 km (0.045 R)
• M10: 5,869,024 km (0.08 R)
• M11: 7,582,966 km (0.119 R)
• M12: 9,974,288 km (0.066 R)
• M13: 11,015,789 km (0.098 R)
• M14: 11,563,018 km (0.054 R)
• M15: 13,437,479 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.9

Radius: 11

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 4.18 AU - 6.06 AU

Year: 7480 Days

Day: 7.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 37,768,943 km

• M1: 136,882 km (0.065 R)
• M2: 576,999 km (0.062 R)
• M3: 1,054,665 km (0.09 R)
• M4: 1,615,956 km (0.038 R)
• M5: 2,218,088 km (0.116 R)
• M6: 2,581,610 km (0.103 R)
• M7: 3,543,226 km (0.114 R)
• M8: 4,068,912 km (0.072 R)
• M9: 4,591,308 km (0.036 R)
• M10: 5,187,755 km (0.104 R)
• M11: 8,184,350 km (0.065 R)
• M12: 8,678,621 km (0.083 R)
• M13: 10,281,862 km (0.096 R)
• M14: 10,711,806 km (0.106 R)
• M15: 11,153,868 km (0.113 R)
• M16: 11,917,415 km (0.107 R)
• M17: 13,211,287 km (0.108 R)
• M18: 15,262,872 km (0.047 R)
• M19: 17,183,559 km (0.066 R)
• M20: 17,995,277 km (0.081 R)
• M21: 19,768,012 km (0.116 R)
• M22: 23,166,128 km (0.077 R)
• M23: 26,133,402 km (0.058 R)
• M24: 29,920,921 km (0.108 R)
• M25: 31,393,412 km (0.114 R)
• M26: 32,503,728 km (0.061 R)
• M27: 34,695,486 km (0.114 R)
• M28: 35,447,515 km (0.068 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 474 - 11,469 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit