🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.19

Radius: 0.51

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.61 AU - 0.67 AU

Year: 336 Days

Day: 46.1 Hours

Environment

Temp: -139 °C

Axial Tilt: 39.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.8

Radius: 12.8

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.73 AU - 0.75 AU

Year: 418 Days

Day: 13.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,105,793 km

• M1: 159,172 km (0.081 R)
• M2: 587,620 km (0.076 R)
• M3: 1,413,101 km (0.051 R)
• M4: 1,863,391 km (0.095 R)
• M5: 2,448,468 km (0.076 R)
• M6: 3,282,476 km (0.115 R)
• M7: 3,714,515 km (0.045 R)
• M8: 4,198,763 km (0.056 R)
• M9: 5,148,411 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260

Radius: 10.4

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.03 AU - 1.43 AU

Year: 895 Days

Day: 10.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,105,793 km

• M1: 129,402 km (0.093 R)
• M2: 562,189 km (0.108 R)
• M3: 1,006,943 km (0.102 R)
• M4: 1,345,334 km (0.114 R)
• M5: 1,729,800 km (0.091 R)
• M6: 2,142,242 km (0.073 R)
• M7: 2,486,616 km (0.107 R)
• M8: 3,203,938 km (0.1 R)
• M9: 3,955,517 km (0.103 R)
• M10: 4,373,344 km (0.063 R)
• M11: 5,400,782 km (0.067 R)
• M12: 6,176,896 km (0.09 R)
• M13: 6,741,030 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676

Radius: 14.2

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.72 AU - 1.76 AU

Year: 1506 Days

Day: 8.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,105,793 km

• M1: 176,675 km (0.078 R)
• M2: 896,540 km (0.083 R)
• M3: 1,375,104 km (0.094 R)
• M4: 2,406,431 km (0.112 R)
• M5: 3,055,836 km (0.119 R)
• M6: 4,203,700 km (0.114 R)
• M7: 6,674,159 km (0.047 R)
• M8: 7,499,341 km (0.076 R)
• M9: 9,045,435 km (0.117 R)
• M10: 11,107,343 km (0.106 R)
• M11: 12,192,526 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.1

Radius: 8

Gravity: 8.55 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.99 AU - 2.55 AU

Year: 2244 Days

Day: 6.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,105,793 km

• M1: 99,931 km (0.106 R)
• M2: 571,763 km (0.114 R)
• M3: 860,936 km (0.088 R)
• M4: 1,291,478 km (0.065 R)
• M5: 1,596,658 km (0.086 R)
• M6: 1,904,530 km (0.026 R)
• M7: 2,612,727 km (0.08 R)
• M8: 3,283,972 km (0.091 R)
• M9: 3,554,894 km (0.097 R)
• M10: 4,122,469 km (0.118 R)
• M11: 4,602,378 km (0.08 R)
• M12: 4,856,096 km (0.118 R)
• M13: 5,163,819 km (0.06 R)
• M14: 6,448,715 km (0.107 R)
• M15: 6,713,204 km (0.065 R)
• M16: 8,146,502 km (0.045 R)
• M17: 9,567,233 km (0.066 R)
• M18: 11,566,608 km (0.111 R)
• M19: 13,655,593 km (0.082 R)
• M20: 13,960,772 km (0.101 R)
• M21: 14,675,252 km (0.063 R)
• M22: 15,935,913 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.8

Radius: 8.5

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.61 AU - 2.83 AU

Year: 2943 Days

Day: 10.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,105,793 km

• M1: 105,766 km (0.077 R)
• M2: 470,186 km (0.115 R)
• M3: 789,428 km (0.074 R)
• M4: 1,299,706 km (0.113 R)
• M5: 1,715,439 km (0.119 R)
• M6: 2,153,461 km (0.109 R)
• M7: 3,288,311 km (0.111 R)
• M8: 3,644,204 km (0.092 R)
• M9: 3,947,289 km (0.081 R)
• M10: 4,267,279 km (0.082 R)
• M11: 5,876,504 km (0.09 R)
• M12: 6,456,794 km (0.099 R)
• M13: 6,732,802 km (0.079 R)
• M14: 7,548,260 km (0.082 R)
• M15: 7,886,052 km (0.091 R)
• M16: 8,169,839 km (0.041 R)
• M17: 17,057,149 km (0.088 R)
• M18: 17,479,614 km (0.065 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.4

Radius: 8.5

Gravity: 7.47 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.9 AU - 3.34 AU

Year: 3615 Days

Day: 7 Hours

Environment

Temp: -200 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 47,105,793 km

• M1: 106,514 km (0.107 R)
• M2: 656,585 km (0.1 R)
• M3: 976,724 km (0.113 R)
• M4: 1,680,732 km (0.051 R)
• M5: 2,382,795 km (0.106 R)
• M6: 4,181,111 km (0.099 R)
• M7: 4,558,696 km (0.113 R)
• M8: 5,007,639 km (0.071 R)
• M9: 5,357,100 km (0.115 R)
• M10: 8,838,841 km (0.085 R)
• M11: 12,208,682 km (0.112 R)
• M12: 12,523,287 km (0.115 R)
• M13: 12,981,954 km (0.085 R)
• M14: 14,827,991 km (0.058 R)
• M15: 15,655,417 km (0.094 R)
• M16: 16,187,836 km (0.098 R)
• M17: 16,513,062 km (0.053 R)
• M18: 17,973,137 km (0.031 R)
• M19: 22,395,998 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 967

Radius: 8.6

Gravity: 13.07 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 4.77 AU - 5.65 AU

Year: 7801 Days

Day: 14.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 47,105,793 km

• M1: 106,962 km (0.09 R)
• M2: 498,610 km (0.078 R)
• M3: 1,227,151 km (0.096 R)
• M4: 1,610,571 km (0.068 R)
• M5: 1,973,794 km (0.108 R)
• M6: 2,391,023 km (0.119 R)
• M7: 2,701,289 km (0.116 R)
• M8: 3,746,679 km (0.107 R)
• M9: 4,979,066 km (0.076 R)
• M10: 5,755,479 km (0.092 R)
• M11: 6,951,963 km (0.115 R)
• M12: 7,836,684 km (0.115 R)
• M13: 8,794,560 km (0.114 R)
• M14: 10,174,002 km (0.109 R)
• M15: 11,968,428 km (0.119 R)
• M16: 12,765,186 km (0.026 R)
• M17: 13,117,340 km (0.099 R)
• M18: 15,968,825 km (0.096 R)
• M19: 22,013,925 km (0.119 R)
• M20: 22,863,043 km (0.077 R)
• M21: 26,194,886 km (0.117 R)
• M22: 28,620,915 km (0.107 R)
• M23: 28,921,756 km (0.093 R)
• M24: 31,618,108 km (0.103 R)
• M25: 34,364,725 km (0.101 R)
• M26: 35,046,892 km (0.083 R)
• M27: 35,506,606 km (0.081 R)
• M28: 38,715,630 km (0.092 R)
• M29: 40,453,508 km (0.065 R)
• M30: 41,597,633 km (0.046 R)
• M31: 42,112,997 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 174

Radius: 8

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 9.02 AU - 10.06 AU

Year: 19330 Days

Day: 17.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 47,105,793 km

• M1: 99,632 km (0.115 R)
• M2: 411,843 km (0.11 R)
• M3: 1,087,726 km (0.114 R)
• M4: 2,097,661 km (0.114 R)
• M5: 2,480,482 km (0.041 R)
• M6: 4,297,797 km (0.103 R)
• M7: 5,731,992 km (0.077 R)
• M8: 13,369,412 km (0.114 R)
• M9: 15,274,541 km (0.117 R)
• M10: 20,089,348 km (0.046 R)
• M11: 21,392,645 km (0.119 R)
• M12: 27,367,584 km (0.111 R)
• M13: 30,522,603 km (0.073 R)
• M14: 39,517,175 km (0.12 R)
• M15: 40,274,440 km (0.12 R)
• M16: 40,912,774 km (0.099 R)
• M17: 44,071,084 km (0.057 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 541 - 17,277 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit