🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.62

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.48 AU - 0.58 AU

Year: 249 Days

Day: 16.7 Hours

Environment

Temp: -116 °C

Axial Tilt: 34.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.6

Radius: 13.5

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.66 AU - 0.88 AU

Year: 436 Days

Day: 14.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,709,152 km

• M1: 167,849 km (0.098 R)
• M2: 587,770 km (0.057 R)
• M3: 1,192,445 km (0.097 R)
• M4: 1,674,150 km (0.115 R)
• M5: 2,106,787 km (0.106 R)
• M6: 2,532,542 km (0.106 R)
• M7: 3,006,020 km (0.104 R)
• M8: 4,033,009 km (0.073 R)
• M9: 4,559,444 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.4

Radius: 14.4

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.28 AU - 1.56 AU

Year: 1093 Days

Day: 11.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,709,152 km

• M1: 179,667 km (0.106 R)
• M2: 655,687 km (0.082 R)
• M3: 1,103,883 km (0.068 R)
• M4: 1,717,384 km (0.078 R)
• M5: 2,172,460 km (0.117 R)
• M6: 3,076,480 km (0.107 R)
• M7: 3,653,479 km (0.106 R)
• M8: 4,252,319 km (0.107 R)
• M9: 4,788,927 km (0.09 R)
• M10: 5,508,642 km (0.09 R)
• M11: 6,041,959 km (0.088 R)
• M12: 6,883,596 km (0.053 R)
• M13: 7,454,611 km (0.09 R)
• M14: 8,005,580 km (0.068 R)
• M15: 8,828,369 km (0.085 R)
• M16: 9,503,504 km (0.111 R)
• M17: 10,062,252 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 617.6

Radius: 8.5

Gravity: 8.55 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.24 AU - 2.02 AU

Year: 1344 Days

Day: 9.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,709,152 km

• M1: 105,766 km (0.094 R)
• M2: 447,447 km (0.059 R)
• M3: 771,775 km (0.09 R)
• M4: 1,097,001 km (0.1 R)
• M5: 1,470,996 km (0.102 R)
• M6: 1,798,914 km (0.083 R)
• M7: 2,164,382 km (0.111 R)
• M8: 4,600,434 km (0.088 R)
• M9: 4,906,810 km (0.107 R)
• M10: 5,646,272 km (0.065 R)
• M11: 5,953,247 km (0.102 R)
• M12: 6,434,653 km (0.108 R)
• M13: 7,632,483 km (0.076 R)
• M14: 8,035,500 km (0.078 R)
• M15: 8,396,330 km (0.114 R)
• M16: 10,430,412 km (0.094 R)
• M17: 10,927,227 km (0.115 R)
• M18: 11,544,168 km (0.066 R)
• M19: 11,968,278 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.1

Radius: 11.2

Gravity: 6.08 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 2.49 AU - 3.33 AU

Year: 3205 Days

Day: 12 Hours

Environment

Temp: -208 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,709,152 km

• M1: 141,071 km (0.086 R)
• M2: 604,525 km (0.087 R)
• M3: 1,147,715 km (0.093 R)
• M4: 1,510,938 km (0.049 R)
• M5: 1,914,254 km (0.094 R)
• M6: 2,728,516 km (0.1 R)
• M7: 4,512,171 km (0.084 R)
• M8: 4,985,349 km (0.117 R)
• M9: 7,506,372 km (0.089 R)
• M10: 11,324,559 km (0.105 R)
• M11: 12,564,576 km (0.12 R)
• M12: 13,170,148 km (0.094 R)
• M13: 13,942,222 km (0.077 R)
• M14: 14,339,405 km (0.084 R)
• M15: 15,418,155 km (0.091 R)
• M16: 16,660,715 km (0.1 R)
• M17: 18,144,576 km (0.049 R)
• M18: 22,371,763 km (0.063 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 294.7

Radius: 3.3

Gravity: 27.06 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 6.93 AU - 9.57 AU

Year: 15300 Days

Day: 22.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 54,709,152 km

• M1: 41,139 km (0.109 R)
• M2: 169,943 km (0.04 R)
• M3: 330,462 km (0.029 R)
• M4: 492,027 km (0.112 R)
• M5: 602,580 km (0.07 R)
• M6: 1,175,839 km (0.045 R)
• M7: 1,403,078 km (0.07 R)
• M8: 1,541,456 km (0.086 R)
• M9: 1,673,851 km (0.074 R)
• M10: 1,845,888 km (0.077 R)
• M11: 2,134,762 km (0.119 R)
• M12: 2,433,509 km (0.071 R)
• M13: 2,654,465 km (0.115 R)
• M14: 2,759,183 km (0.071 R)
• M15: 2,910,576 km (0.072 R)
• M16: 3,044,765 km (0.117 R)
• M17: 4,158,222 km (0.111 R)
• M18: 4,867,765 km (0.073 R)
• M19: 6,114,065 km (0.089 R)
• M20: 6,371,673 km (0.084 R)
• M21: 8,607,712 km (0.114 R)
• M22: 8,838,093 km (0.113 R)
• M23: 13,717,227 km (0.082 R)
• M24: 15,269,006 km (0.043 R)
• M25: 15,403,345 km (0.045 R)
• M26: 15,742,782 km (0.083 R)
• M27: 17,735,875 km (0.073 R)
• M28: 20,865,612 km (0.062 R)
• M29: 21,114,243 km (0.101 R)
• M30: 22,560,256 km (0.096 R)
• M31: 23,619,709 km (0.062 R)
• M32: 25,270,671 km (0.108 R)
• M33: 37,911,990 km (0.092 R)
• M34: 41,199,553 km (0.08 R)
• M35: 41,329,703 km (0.116 R)
• M36: 41,721,649 km (0.12 R)
• M37: 46,338,838 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 331.8

Radius: 4.4

Gravity: 17.14 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 8.73 AU - 9.33 AU

Year: 17521 Days

Day: 22.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 54,709,152 km

• M1: 54,902 km (0.091 R)
• M2: 211,232 km (0.065 R)
• M3: 532,568 km (0.087 R)
• M4: 1,026,391 km (0.092 R)
• M5: 1,575,116 km (0.117 R)
• M6: 2,299,020 km (0.047 R)
• M7: 5,479,321 km (0.05 R)
• M8: 5,729,150 km (0.042 R)
• M9: 6,367,334 km (0.094 R)
• M10: 6,927,578 km (0.101 R)
• M11: 7,304,714 km (0.045 R)
• M12: 8,330,507 km (0.103 R)
• M13: 10,337,063 km (0.048 R)
• M14: 10,663,336 km (0.095 R)
• M15: 11,860,119 km (0.064 R)
• M16: 12,097,830 km (0.045 R)
• M17: 12,521,342 km (0.087 R)
• M18: 18,244,358 km (0.097 R)
• M19: 20,624,909 km (0.079 R)
• M20: 21,403,715 km (0.119 R)
• M21: 21,579,493 km (0.088 R)
• M22: 28,142,800 km (0.107 R)
• M23: 29,100,376 km (0.105 R)
• M24: 29,750,529 km (0.091 R)
• M25: 30,967,806 km (0.08 R)
• M26: 37,046,865 km (0.064 R)
• M27: 47,657,842 km (0.101 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 320 - 11,919 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit