🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.46 AU - 0.68 AU

Year: 282 Days

Day: 33.7 Hours

Environment

Temp: -116 °C

Axial Tilt: 39.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.5

Radius: 9.8

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.53 AU - 0.87 AU

Year: 384 Days

Day: 8.9 Hours

Environment

Temp: -137 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 69,995,441 km

• M1: 121,922 km (0.065 R)
• M2: 863,479 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 460.6

Radius: 11.3

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.71 AU - 1.13 AU

Year: 579 Days

Day: 8.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,995,441 km

• M1: 140,622 km (0.104 R)
• M2: 536,608 km (0.117 R)
• M3: 1,060,350 km (0.113 R)
• M4: 1,441,226 km (0.089 R)
• M5: 1,866,981 km (0.12 R)
• M6: 2,302,461 km (0.082 R)
• M7: 2,670,621 km (0.095 R)
• M8: 3,089,645 km (0.073 R)
• M9: 3,540,234 km (0.097 R)
• M10: 3,940,109 km (0.11 R)
• M11: 5,391,208 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711

Radius: 8.2

Gravity: 10.57 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.47 AU - 1.83 AU

Year: 1390 Days

Day: 6.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 69,995,441 km

• M1: 102,026 km (0.083 R)
• M2: 410,646 km (0.111 R)
• M3: 715,078 km (0.114 R)
• M4: 1,018,911 km (0.087 R)
• M5: 1,359,845 km (0.083 R)
• M6: 1,887,776 km (0.092 R)
• M7: 2,571,587 km (0.091 R)
• M8: 3,364,307 km (0.088 R)
• M9: 3,971,375 km (0.089 R)
• M10: 4,440,364 km (0.059 R)
• M11: 4,805,981 km (0.079 R)
• M12: 5,424,120 km (0.066 R)
• M13: 6,497,784 km (0.038 R)
• M14: 8,264,684 km (0.089 R)
• M15: 8,818,944 km (0.106 R)
• M16: 9,617,498 km (0.074 R)
• M17: 11,112,130 km (0.109 R)
• M18: 12,006,426 km (0.028 R)
• M19: 12,870,653 km (0.061 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.9

Radius: 14

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.8 AU - 3.38 AU

Year: 3563 Days

Day: 9.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 69,995,441 km

• M1: 174,132 km (0.119 R)
• M2: 612,304 km (0.095 R)
• M3: 1,107,623 km (0.052 R)
• M4: 1,719,029 km (0.054 R)
• M5: 2,420,344 km (0.114 R)
• M6: 3,079,323 km (0.053 R)
• M7: 4,080,432 km (0.075 R)
• M8: 4,668,650 km (0.069 R)
• M9: 5,438,930 km (0.104 R)
• M10: 6,236,735 km (0.095 R)
• M11: 6,960,041 km (0.099 R)
• M12: 7,515,049 km (0.055 R)
• M13: 8,540,243 km (0.081 R)
• M14: 9,141,028 km (0.089 R)
• M15: 12,267,325 km (0.106 R)
• M16: 14,413,306 km (0.058 R)
• M17: 15,731,562 km (0.087 R)
• M18: 16,420,161 km (0.11 R)
• M19: 17,574,907 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.9

Radius: 12.7

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 4 AU - 6.14 AU

Year: 7489 Days

Day: 12.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,995,441 km

• M1: 157,975 km (0.118 R)
• M2: 704,157 km (0.104 R)
• M3: 2,186,522 km (0.109 R)
• M4: 3,149,035 km (0.08 R)
• M5: 4,975,326 km (0.068 R)
• M6: 7,569,503 km (0.098 R)
• M7: 7,975,661 km (0.107 R)
• M8: 10,454,647 km (0.119 R)
• M9: 14,847,289 km (0.075 R)
• M10: 15,901,655 km (0.11 R)
• M11: 20,766,728 km (0.117 R)
• M12: 21,272,817 km (0.103 R)
• M13: 26,797,467 km (0.119 R)
• M14: 29,162,160 km (0.076 R)
• M15: 30,256,469 km (0.049 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.4

Radius: 13

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 4.59 AU - 5.61 AU

Year: 7556 Days

Day: 11.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,995,441 km

• M1: 161,865 km (0.105 R)
• M2: 1,881,044 km (0.099 R)
• M3: 2,514,291 km (0.113 R)
• M4: 3,909,740 km (0.086 R)
• M5: 5,611,566 km (0.08 R)
• M6: 6,332,927 km (0.068 R)
• M7: 9,807,188 km (0.075 R)
• M8: 12,839,088 km (0.09 R)
• M9: 14,151,510 km (0.051 R)
• M10: 14,568,289 km (0.115 R)
• M11: 14,993,147 km (0.046 R)
• M12: 16,252,911 km (0.114 R)
• M13: 17,582,088 km (0.079 R)
• M14: 25,421,465 km (0.116 R)
• M15: 26,127,268 km (0.078 R)
• M16: 32,974,811 km (0.066 R)
• M17: 34,667,960 km (0.102 R)
• M18: 35,755,387 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 641.7

Radius: 6.2

Gravity: 16.69 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 7.14 AU - 10.4 AU

Year: 17038 Days

Day: 17.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 69,995,441 km

• M1: 77,791 km (0.091 R)
• M2: 316,399 km (0.067 R)
• M3: 550,071 km (0.113 R)
• M4: 890,257 km (0.111 R)
• M5: 1,121,236 km (0.089 R)
• M6: 1,363,435 km (0.061 R)
• M7: 1,575,714 km (0.11 R)
• M8: 1,845,589 km (0.096 R)
• M9: 2,266,857 km (0.064 R)
• M10: 3,066,906 km (0.041 R)
• M11: 6,330,533 km (0.109 R)
• M12: 6,839,615 km (0.095 R)
• M13: 7,843,416 km (0.081 R)
• M14: 10,310,285 km (0.043 R)
• M15: 15,171,169 km (0.103 R)
• M16: 15,545,912 km (0.078 R)
• M17: 21,275,660 km (0.094 R)
• M18: 22,511,039 km (0.036 R)
• M19: 22,802,904 km (0.075 R)
• M20: 26,180,974 km (0.089 R)
• M21: 26,829,032 km (0.069 R)
• M22: 27,266,905 km (0.111 R)
• M23: 28,157,162 km (0.118 R)
• M24: 31,546,750 km (0.115 R)
• M25: 32,034,589 km (0.03 R)
• M26: 32,403,796 km (0.077 R)
• M27: 37,058,385 km (0.074 R)
• M28: 43,178,733 km (0.025 R)
• M29: 44,692,663 km (0.059 R)
• M30: 48,147,327 km (0.075 R)
• M31: 56,831,932 km (0.075 R)
• M32: 57,554,041 km (0.117 R)
• M33: 58,099,774 km (0.099 R)
• M34: 62,781,888 km (0.099 R)
• M35: 63,747,542 km (0.107 R)
• M36: 65,708,471 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 675.4

Radius: 6.1

Gravity: 18.15 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 6.77 AU - 11.27 AU

Year: 17771 Days

Day: 23.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 69,995,441 km

• M1: 76,145 km (0.094 R)
• M2: 271,819 km (0.063 R)
• M3: 705,055 km (0.084 R)
• M4: 948,899 km (0.091 R)
• M5: 1,660,536 km (0.097 R)
• M6: 2,020,918 km (0.049 R)
• M7: 2,345,545 km (0.099 R)
• M8: 2,611,530 km (0.106 R)
• M9: 3,447,932 km (0.118 R)
• M10: 4,223,447 km (0.095 R)
• M11: 4,824,681 km (0.069 R)
• M12: 5,109,515 km (0.059 R)
• M13: 6,575,574 km (0.094 R)
• M14: 9,681,974 km (0.117 R)
• M15: 10,782,715 km (0.12 R)
• M16: 14,656,103 km (0.108 R)
• M17: 14,953,055 km (0.06 R)
• M18: 21,867,469 km (0.093 R)
• M19: 31,011,788 km (0.116 R)
• M20: 31,378,602 km (0.077 R)
• M21: 32,875,030 km (0.075 R)
• M22: 34,943,220 km (0.103 R)
• M23: 37,509,871 km (0.104 R)
• M24: 51,047,281 km (0.073 R)
• M25: 52,591,730 km (0.069 R)
• M26: 53,814,393 km (0.112 R)
• M27: 57,044,959 km (0.092 R)
• M28: 57,411,773 km (0.115 R)
• M29: 59,081,585 km (0.111 R)
• M30: 63,495,619 km (0.092 R)
• M31: 67,713,382 km (0.12 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 249 - 19,013 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit