🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.1

Radius: 14.9

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.66 AU - 0.7 AU

Year: 362 Days

Day: 12 Hours

Environment

Temp: -127 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,122,033 km

• M1: 185,501 km (0.108 R)
• M2: 692,189 km (0.12 R)
• M3: 1,448,257 km (0.046 R)
• M4: 1,959,732 km (0.114 R)
• M5: 2,883,948 km (0.086 R)
• M6: 3,710,775 km (0.091 R)
• M7: 4,747,937 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 760.9

Radius: 8.9

Gravity: 9.61 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.67 AU - 0.89 AU

Year: 445 Days

Day: 7.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,122,033 km

• M1: 110,702 km (0.105 R)
• M2: 389,254 km (0.11 R)
• M3: 779,255 km (0.113 R)
• M4: 1,220,569 km (0.081 R)
• M5: 1,534,575 km (0.054 R)
• M6: 2,001,620 km (0.072 R)
• M7: 2,531,346 km (0.055 R)
• M8: 2,982,084 km (0.058 R)
• M9: 3,351,740 km (0.093 R)
• M10: 3,977,059 km (0.098 R)
• M11: 4,617,787 km (0.107 R)
• M12: 5,342,290 km (0.098 R)
• M13: 5,854,213 km (0.093 R)
• M14: 6,176,896 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.1

Radius: 12.5

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.68 AU - 1.84 AU

Year: 1508 Days

Day: 11.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,122,033 km

• M1: 156,928 km (0.062 R)
• M2: 589,864 km (0.114 R)
• M3: 1,187,657 km (0.088 R)
• M4: 1,579,454 km (0.077 R)
• M5: 2,162,587 km (0.091 R)
• M6: 2,915,214 km (0.055 R)
• M7: 3,369,243 km (0.045 R)
• M8: 3,923,354 km (0.089 R)
• M9: 5,590,622 km (0.044 R)
• M10: 6,519,774 km (0.085 R)
• M11: 7,717,006 km (0.087 R)
• M12: 8,532,763 km (0.073 R)
• M13: 9,213,284 km (0.055 R)
• M14: 10,788,699 km (0.107 R)
• M15: 13,092,506 km (0.053 R)
• M16: 13,581,691 km (0.108 R)
• M17: 14,167,666 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.3

Radius: 14.8

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.94 AU - 2.06 AU

Year: 1826 Days

Day: 5.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,122,033 km

• M1: 184,005 km (0.105 R)
• M2: 648,806 km (0.107 R)
• M3: 1,270,086 km (0.11 R)
• M4: 1,976,786 km (0.047 R)
• M5: 3,085,456 km (0.111 R)
• M6: 3,745,183 km (0.092 R)
• M7: 4,286,727 km (0.073 R)
• M8: 5,284,545 km (0.062 R)
• M9: 6,583,802 km (0.116 R)
• M10: 7,684,095 km (0.102 R)
• M11: 8,145,454 km (0.102 R)
• M12: 8,656,032 km (0.104 R)
• M13: 9,543,746 km (0.119 R)
• M14: 10,043,851 km (0.119 R)
• M15: 10,526,454 km (0.087 R)
• M16: 11,877,024 km (0.102 R)
• M17: 14,700,384 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.1

Radius: 12.6

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 3.38 AU - 5.38 AU

Year: 5919 Days

Day: 8.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 44,122,033 km

• M1: 156,779 km (0.086 R)
• M2: 557,252 km (0.103 R)
• M3: 1,134,999 km (0.11 R)
• M4: 1,568,833 km (0.11 R)
• M5: 2,007,005 km (0.05 R)
• M6: 2,854,776 km (0.083 R)
• M7: 3,537,092 km (0.042 R)
• M8: 5,683,821 km (0.117 R)
• M9: 6,194,549 km (0.119 R)
• M10: 6,766,760 km (0.096 R)
• M11: 7,275,842 km (0.055 R)
• M12: 8,407,101 km (0.082 R)
• M13: 8,809,220 km (0.109 R)
• M14: 9,378,291 km (0.068 R)
• M15: 9,891,112 km (0.086 R)
• M16: 10,548,146 km (0.078 R)
• M17: 14,852,974 km (0.075 R)
• M18: 15,715,107 km (0.103 R)
• M19: 19,122,198 km (0.078 R)
• M20: 19,691,867 km (0.06 R)
• M21: 21,064,876 km (0.055 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 53.6

Radius: 4.3

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 4.67 AU - 7.55 AU

Year: 9752 Days

Day: 18.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,122,033 km

• M1: 53,556 km (0.042 R)
• M2: 345,571 km (0.055 R)
• M3: 618,438 km (0.114 R)
• M4: 1,122,283 km (0.11 R)
• M5: 1,340,397 km (0.11 R)
• M6: 2,736,444 km (0.063 R)
• M7: 5,860,646 km (0.096 R)
• M8: 10,581,805 km (0.083 R)
• M9: 12,056,541 km (0.034 R)
• M10: 12,798,397 km (0.104 R)
• M11: 13,662,923 km (0.093 R)
• M12: 13,802,947 km (0.089 R)
• M13: 17,732,284 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 934.9

Radius: 6.5

Gravity: 22.13 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 5.33 AU - 8.35 AU

Year: 11550 Days

Day: 16.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 44,122,033 km

• M1: 80,783 km (0.086 R)
• M2: 1,108,221 km (0.057 R)
• M3: 1,477,129 km (0.067 R)
• M4: 5,336,455 km (0.111 R)
• M5: 5,919,887 km (0.117 R)
• M6: 6,464,573 km (0.09 R)
• M7: 7,170,226 km (0.067 R)
• M8: 7,563,968 km (0.085 R)
• M9: 8,158,021 km (0.033 R)
• M10: 8,684,755 km (0.102 R)
• M11: 10,456,143 km (0.079 R)
• M12: 11,903,203 km (0.038 R)
• M13: 14,835,920 km (0.027 R)
• M14: 15,331,687 km (0.089 R)
• M15: 17,582,088 km (0.063 R)
• M16: 18,217,430 km (0.094 R)
• M17: 18,622,242 km (0.05 R)
• M18: 25,436,724 km (0.071 R)
• M19: 28,899,466 km (0.103 R)
• M20: 31,144,033 km (0.097 R)
• M21: 32,308,802 km (0.085 R)
• M22: 34,477,971 km (0.05 R)
• M23: 40,322,311 km (0.111 R)
• M24: 45,004,724 km (0.047 R)
• M25: 48,012,090 km (0.115 R)
• M26: 51,794,373 km (0.062 R)
• M27: 53,923,899 km (0.101 R)
• M28: 55,601,041 km (0.081 R)
• M29: 58,356,484 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 313.7

Radius: 3

Gravity: 34.86 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 5.74 AU - 9.1 AU

Year: 13050 Days

Day: 18.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 44,122,033 km

• M1: 265,536 km (0.085 R)
• M2: 364,121 km (0.056 R)
• M3: 1,325,437 km (0.032 R)
• M4: 1,428,360 km (0.113 R)
• M5: 2,652,370 km (0.116 R)
• M6: 4,973,980 km (0.089 R)
• M7: 5,351,864 km (0.072 R)
• M8: 5,614,258 km (0.109 R)
• M9: 8,550,117 km (0.109 R)
• M10: 11,165,835 km (0.076 R)
• M11: 12,827,120 km (0.062 R)
• M12: 13,177,927 km (0.071 R)
• M13: 13,296,408 km (0.115 R)
• M14: 20,797,246 km (0.11 R)
• M15: 28,273,698 km (0.062 R)
• M16: 34,030,823 km (0.088 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 180 - 15,090 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit