🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

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: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.44 AU - 0.66 AU

Year: 259 Days

Day: 31.9 Hours

Environment

Temp: -118 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 63,369,844 km

• M1: 181,761 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.2

Radius: 8.7

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.98 AU - 1.1 AU

Year: 674 Days

Day: 9.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,369,844 km

• M1: 108,159 km (0.097 R)
• M2: 385,963 km (0.099 R)
• M3: 666,459 km (0.079 R)
• M4: 973,433 km (0.111 R)
• M5: 1,253,032 km (0.034 R)
• M6: 1,655,450 km (0.11 R)
• M7: 1,926,073 km (0.109 R)
• M8: 2,209,710 km (0.09 R)
• M9: 2,781,772 km (0.105 R)
• M10: 3,437,609 km (0.098 R)
• M11: 4,817,799 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.7

Radius: 12.6

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.82 AU - 1.32 AU

Year: 704 Days

Day: 14.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,369,844 km

• M1: 156,928 km (0.113 R)
• M2: 568,023 km (0.059 R)
• M3: 1,043,296 km (0.044 R)
• M4: 1,447,958 km (0.036 R)
• M5: 1,933,702 km (0.099 R)
• M6: 2,434,705 km (0.09 R)
• M7: 3,421,303 km (0.105 R)
• M8: 4,206,243 km (0.1 R)
• M9: 4,722,954 km (0.105 R)
• M10: 5,334,810 km (0.097 R)
• M11: 6,037,471 km (0.115 R)
• M12: 6,697,048 km (0.045 R)
• M13: 7,381,907 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905.8

Radius: 9.7

Gravity: 9.63 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.21 AU - 1.33 AU

Year: 910 Days

Day: 6.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 63,369,844 km

• M1: 122,521 km (0.097 R)
• M2: 640,877 km (0.117 R)
• M3: 963,111 km (0.068 R)
• M4: 1,313,769 km (0.031 R)
• M5: 1,833,472 km (0.075 R)
• M6: 2,677,503 km (0.116 R)
• M7: 3,919,015 km (0.084 R)
• M8: 4,776,660 km (0.12 R)
• M9: 5,671,854 km (0.107 R)
• M10: 6,051,234 km (0.065 R)
• M11: 6,469,958 km (0.1 R)
• M12: 6,978,890 km (0.05 R)
• M13: 7,439,801 km (0.115 R)
• M14: 9,257,565 km (0.109 R)
• M15: 10,331,528 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 192

Radius: 12.7

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.7 AU - 1.78 AU

Year: 1459 Days

Day: 6.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,369,844 km

• M1: 157,975 km (0.113 R)
• M2: 566,228 km (0.109 R)
• M3: 1,055,712 km (0.116 R)
• M4: 1,586,037 km (0.101 R)
• M5: 3,617,426 km (0.092 R)
• M6: 4,496,314 km (0.095 R)
• M7: 5,740,968 km (0.055 R)
• M8: 6,237,483 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.5

Radius: 12.4

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.75 AU - 2.05 AU

Year: 1665 Days

Day: 11.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 63,369,844 km

• M1: 154,235 km (0.026 R)
• M2: 655,987 km (0.083 R)
• M3: 1,071,869 km (0.054 R)
• M4: 1,553,873 km (0.084 R)
• M5: 2,202,829 km (0.035 R)
• M6: 3,184,939 km (0.115 R)
• M7: 3,629,693 km (0.084 R)
• M8: 4,384,414 km (0.054 R)
• M9: 5,158,733 km (0.065 R)
• M10: 6,090,877 km (0.111 R)
• M11: 6,513,042 km (0.034 R)
• M12: 7,628,444 km (0.064 R)
• M13: 8,064,223 km (0.115 R)
• M14: 8,632,396 km (0.115 R)
• M15: 9,534,770 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.2

Radius: 14.8

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 2.08 AU - 2.8 AU

Year: 2423 Days

Day: 13.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,369,844 km

• M1: 184,454 km (0.109 R)
• M2: 939,774 km (0.058 R)
• M3: 1,804,300 km (0.11 R)
• M4: 2,545,557 km (0.067 R)
• M5: 3,225,480 km (0.069 R)
• M6: 4,264,736 km (0.109 R)
• M7: 5,021,253 km (0.064 R)
• M8: 5,790,036 km (0.114 R)
• M9: 6,444,227 km (0.103 R)
• M10: 9,427,807 km (0.098 R)
• M11: 9,892,907 km (0.07 R)
• M12: 11,222,084 km (0.111 R)
• M13: 13,773,326 km (0.115 R)
• M14: 14,420,337 km (0.096 R)
• M15: 15,428,926 km (0.104 R)
• M16: 17,160,821 km (0.101 R)
• M17: 18,850,080 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.3

Radius: 10

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 4.58 AU - 6.54 AU

Year: 8336 Days

Day: 7.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 63,369,844 km

• M1: 124,765 km (0.06 R)
• M2: 441,314 km (0.062 R)
• M3: 921,822 km (0.093 R)
• M4: 1,852,620 km (0.105 R)
• M5: 2,679,597 km (0.059 R)
• M6: 3,231,314 km (0.038 R)
• M7: 3,956,415 km (0.054 R)
• M8: 5,412,002 km (0.069 R)
• M9: 5,825,790 km (0.081 R)
• M10: 6,295,228 km (0.104 R)
• M11: 7,347,799 km (0.068 R)
• M12: 8,346,065 km (0.08 R)
• M13: 11,620,912 km (0.049 R)
• M14: 12,311,606 km (0.112 R)
• M15: 12,639,524 km (0.115 R)
• M16: 14,487,955 km (0.104 R)
• M17: 17,111,154 km (0.086 R)
• M18: 17,519,855 km (0.115 R)
• M19: 18,145,175 km (0.118 R)
• M20: 20,796,348 km (0.092 R)
• M21: 22,133,903 km (0.112 R)
• M22: 23,029,395 km (0.055 R)
• M23: 23,444,380 km (0.092 R)
• M24: 25,329,612 km (0.034 R)
• M25: 28,154,768 km (0.106 R)
• M26: 29,109,202 km (0.03 R)
• M27: 31,589,386 km (0.113 R)
• M28: 34,639,237 km (0.076 R)
• M29: 35,734,743 km (0.118 R)
• M30: 37,535,602 km (0.056 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 416

Radius: 6.3

Gravity: 10.48 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 9.16 AU - 10.44 AU

Year: 19506 Days

Day: 17.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 63,369,844 km

• M1: 78,389 km (0.11 R)
• M2: 337,642 km (0.08 R)
• M3: 1,079,199 km (0.045 R)
• M4: 1,467,705 km (0.1 R)
• M5: 1,736,532 km (0.063 R)
• M6: 2,075,521 km (0.076 R)
• M7: 3,415,918 km (0.073 R)
• M8: 6,990,708 km (0.03 R)
• M9: 7,210,019 km (0.071 R)
• M10: 7,616,028 km (0.116 R)
• M11: 8,773,915 km (0.117 R)
• M12: 9,879,294 km (0.102 R)
• M13: 13,410,402 km (0.099 R)
• M14: 19,891,580 km (0.064 R)
• M15: 20,243,733 km (0.078 R)
• M16: 23,019,372 km (0.045 R)
• M17: 28,413,722 km (0.074 R)
• M18: 28,860,571 km (0.117 R)
• M19: 30,345,030 km (0.119 R)
• M20: 34,089,166 km (0.101 R)
• M21: 37,058,085 km (0.109 R)
• M22: 40,055,129 km (0.085 R)
• M23: 42,478,764 km (0.082 R)
• M24: 44,098,012 km (0.119 R)
• M25: 45,910,988 km (0.096 R)
• M26: 53,830,400 km (0.084 R)
• M27: 58,380,419 km (0.049 R)
• M28: 58,740,651 km (0.061 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 17,732 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit