🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.53

Radius: 1.19

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.44 AU - 0.72 AU

Year: 285 Days

Day: 12.8 Hours

Environment

Temp: -128 °C

Axial Tilt: 7.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 1.03 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.5

Radius: 13.4

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.3 AU - 1.66 AU

Year: 1163 Days

Day: 10.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,224,659 km

• M1: 167,250 km (0.09 R)
• M2: 595,699 km (0.054 R)
• M3: 1,032,375 km (0.08 R)
• M4: 1,597,256 km (0.109 R)
• M5: 2,099,307 km (0.107 R)
• M6: 3,385,250 km (0.1 R)
• M7: 3,822,226 km (0.072 R)
• M8: 4,678,823 km (0.056 R)
• M9: 5,511,784 km (0.026 R)
• M10: 5,964,168 km (0.032 R)
• M11: 7,370,089 km (0.116 R)
• M12: 9,372,905 km (0.034 R)
• M13: 10,274,232 km (0.072 R)
• M14: 10,762,669 km (0.079 R)
• M15: 11,472,661 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.5

Radius: 12.7

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1.32 AU - 1.96 AU

Year: 1356 Days

Day: 10.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,224,659 km

• M1: 158,275 km (0.091 R)
• M2: 641,176 km (0.072 R)
• M3: 1,342,342 km (0.098 R)
• M4: 2,128,030 km (0.106 R)
• M5: 2,619,608 km (0.05 R)
• M6: 3,157,263 km (0.052 R)
• M7: 3,784,527 km (0.118 R)
• M8: 4,182,008 km (0.084 R)
• M9: 5,568,332 km (0.106 R)
• M10: 6,201,580 km (0.111 R)
• M11: 7,721,045 km (0.078 R)
• M12: 8,136,927 km (0.109 R)
• M13: 8,714,974 km (0.115 R)
• M14: 9,258,463 km (0.117 R)
• M15: 11,095,375 km (0.111 R)
• M16: 12,062,974 km (0.112 R)
• M17: 12,662,562 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.1

Radius: 12.9

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.48 AU - 2.46 AU

Year: 1785 Days

Day: 12.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,224,659 km

• M1: 160,369 km (0.035 R)
• M2: 578,794 km (0.093 R)
• M3: 1,165,966 km (0.042 R)
• M4: 1,726,509 km (0.102 R)
• M5: 3,066,308 km (0.074 R)
• M6: 3,614,584 km (0.063 R)
• M7: 5,130,010 km (0.075 R)
• M8: 6,293,882 km (0.076 R)
• M9: 7,141,354 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.2

Radius: 8.4

Gravity: 8.99 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.32 AU - 2.34 AU

Year: 2296 Days

Day: 13 Hours

Environment

Temp: -188 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 56,224,659 km

• M1: 104,569 km (0.11 R)
• M2: 556,055 km (0.098 R)
• M3: 844,779 km (0.107 R)
• M4: 1,145,471 km (0.116 R)
• M5: 1,547,889 km (0.087 R)
• M6: 2,511,000 km (0.104 R)
• M7: 2,831,439 km (0.03 R)
• M8: 3,537,541 km (0.081 R)
• M9: 3,980,051 km (0.085 R)
• M10: 4,669,548 km (0.078 R)
• M11: 5,133,900 km (0.049 R)
• M12: 6,077,713 km (0.049 R)
• M13: 6,604,447 km (0.059 R)
• M14: 8,179,413 km (0.082 R)
• M15: 8,887,609 km (0.115 R)
• M16: 9,325,034 km (0.083 R)
• M17: 9,601,341 km (0.03 R)
• M18: 9,954,392 km (0.102 R)
• M19: 10,500,125 km (0.096 R)
• M20: 10,989,011 km (0.116 R)
• M21: 11,810,901 km (0.041 R)
• M22: 14,248,000 km (0.089 R)
• M23: 17,053,110 km (0.054 R)
• M24: 17,519,107 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.3

Radius: 14.9

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 2.61 AU - 2.91 AU

Year: 2961 Days

Day: 7.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 56,224,659 km

• M1: 185,801 km (0.075 R)
• M2: 721,062 km (0.096 R)
• M3: 1,490,892 km (0.118 R)
• M4: 1,957,488 km (0.097 R)
• M5: 2,424,383 km (0.095 R)
• M6: 3,199,599 km (0.073 R)
• M7: 3,954,620 km (0.036 R)
• M8: 4,515,013 km (0.107 R)
• M9: 5,953,397 km (0.07 R)
• M10: 7,462,540 km (0.03 R)
• M11: 8,423,108 km (0.067 R)
• M12: 8,898,829 km (0.082 R)
• M13: 10,016,924 km (0.069 R)
• M14: 10,629,527 km (0.116 R)
• M15: 12,357,831 km (0.079 R)
• M16: 12,929,146 km (0.116 R)
• M17: 14,458,634 km (0.098 R)
• M18: 14,994,494 km (0.074 R)
• M19: 15,594,082 km (0.114 R)
• M20: 19,830,694 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.8

Radius: 11.9

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 4.75 AU - 7.11 AU

Year: 9324 Days

Day: 13.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,224,659 km

• M1: 147,952 km (0.119 R)
• M2: 883,076 km (0.11 R)
• M3: 1,270,086 km (0.106 R)
• M4: 1,959,134 km (0.069 R)
• M5: 5,353,958 km (0.12 R)
• M6: 6,722,629 km (0.071 R)
• M7: 7,509,215 km (0.077 R)
• M8: 10,494,141 km (0.044 R)
• M9: 12,797,799 km (0.056 R)
• M10: 13,881,486 km (0.085 R)
• M11: 14,509,497 km (0.093 R)
• M12: 16,928,345 km (0.106 R)
• M13: 19,526,561 km (0.09 R)
• M14: 24,129,837 km (0.11 R)
• M15: 32,811,750 km (0.075 R)
• M16: 35,529,195 km (0.092 R)
• M17: 38,393,396 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 14.3

Radius: 6

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 5.67 AU - 6.55 AU

Year: 9752 Days

Day: 15.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,224,659 km

• M1: 75,248 km (0.07 R)
• M2: 828,323 km (0.11 R)
• M3: 1,114,953 km (0.11 R)
• M4: 1,306,289 km (0.11 R)
• M5: 1,492,837 km (0.096 R)
• M6: 1,726,659 km (0.115 R)
• M7: 2,806,606 km (0.072 R)
• M8: 6,831,387 km (0.065 R)
• M9: 8,168,343 km (0.12 R)
• M10: 10,758,480 km (0.051 R)
• M11: 12,747,833 km (0.092 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 343.9

Radius: 3

Gravity: 38.21 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 8.19 AU - 10.15 AU

Year: 17930 Days

Day: 24.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 56,224,659 km

• M1: 38,147 km (0.085 R)
• M2: 139,276 km (0.104 R)
• M3: 267,481 km (0.108 R)
• M4: 473,477 km (0.084 R)
• M5: 660,475 km (0.06 R)
• M6: 1,071,121 km (0.089 R)
• M7: 1,509,293 km (0.046 R)
• M8: 2,976,698 km (0.081 R)
• M9: 3,396,021 km (0.072 R)
• M10: 4,411,791 km (0.12 R)
• M11: 8,449,737 km (0.12 R)
• M12: 10,388,076 km (0.092 R)
• M13: 11,694,814 km (0.029 R)
• M14: 12,541,537 km (0.106 R)
• M15: 14,491,995 km (0.113 R)
• M16: 15,754,451 km (0.114 R)
• M17: 18,097,004 km (0.114 R)
• M18: 34,787,489 km (0.083 R)
• M19: 40,589,642 km (0.1 R)
• M20: 47,454,240 km (0.097 R)
• M21: 47,605,034 km (0.092 R)
• M22: 49,438,207 km (0.075 R)
• M23: 49,593,041 km (0.058 R)
• M24: 51,476,777 km (0.036 R)
• M25: 52,920,396 km (0.089 R)
• M26: 55,888,269 km (0.048 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 442 - 10,808 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit