🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.47 AU - 0.77 AU

Year: 320 Days

Day: 13.8 Hours

Environment

Temp: -133 °C

Axial Tilt: 47.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.2

Radius: 12.5

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.59 AU - 0.93 AU

Year: 435 Days

Day: 10.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 74,143,739 km

• M1: 155,432 km (0.098 R)
• M2: 735,124 km (0.115 R)
• M3: 1,770,640 km (0.099 R)
• M4: 2,845,352 km (0.109 R)
• M5: 3,284,870 km (0.045 R)
• M6: 3,682,202 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 850.8

Radius: 11

Gravity: 7.03 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.86 AU - 0.98 AU

Year: 579 Days

Day: 14.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,143,739 km

• M1: 138,228 km (0.032 R)
• M2: 526,734 km (0.061 R)
• M3: 1,033,272 km (0.075 R)
• M4: 1,452,595 km (0.063 R)
• M5: 1,959,283 km (0.11 R)
• M6: 2,404,487 km (0.045 R)
• M7: 2,779,379 km (0.04 R)
• M8: 3,143,949 km (0.065 R)
• M9: 4,146,853 km (0.111 R)
• M10: 4,514,415 km (0.055 R)
• M11: 5,141,230 km (0.072 R)
• M12: 5,676,342 km (0.077 R)
• M13: 6,111,522 km (0.107 R)
• M14: 6,630,178 km (0.082 R)
• M15: 7,006,267 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541

Radius: 8.6

Gravity: 7.31 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.41 AU - 1.71 AU

Year: 1278 Days

Day: 12.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,143,739 km

• M1: 106,962 km (0.068 R)
• M2: 401,670 km (0.09 R)
• M3: 767,437 km (0.054 R)
• M4: 1,055,563 km (0.117 R)
• M5: 1,338,452 km (0.12 R)
• M6: 2,031,240 km (0.118 R)
• M7: 2,382,346 km (0.104 R)
• M8: 3,293,846 km (0.112 R)
• M9: 3,639,267 km (0.069 R)
• M10: 4,263,240 km (0.095 R)
• M11: 5,350,817 km (0.113 R)
• M12: 5,915,997 km (0.072 R)
• M13: 6,428,221 km (0.056 R)
• M14: 6,994,000 km (0.118 R)
• M15: 7,314,139 km (0.056 R)
• M16: 7,773,405 km (0.106 R)
• M17: 8,665,606 km (0.118 R)
• M18: 9,006,390 km (0.097 R)
• M19: 9,775,473 km (0.115 R)
• M20: 10,491,747 km (0.04 R)
• M21: 10,879,206 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.3

Radius: 12.8

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.76 AU - 2.64 AU

Year: 2141 Days

Day: 7.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,143,739 km

• M1: 159,771 km (0.075 R)
• M2: 650,302 km (0.031 R)
• M3: 1,485,656 km (0.056 R)
• M4: 2,037,373 km (0.076 R)
• M5: 2,479,136 km (0.095 R)
• M6: 3,524,376 km (0.114 R)
• M7: 4,434,380 km (0.106 R)
• M8: 5,543,648 km (0.117 R)
• M9: 6,150,716 km (0.097 R)
• M10: 7,000,283 km (0.059 R)
• M11: 7,468,524 km (0.091 R)
• M12: 8,242,244 km (0.089 R)
• M13: 9,000,556 km (0.086 R)
• M14: 9,877,050 km (0.119 R)
• M15: 10,580,758 km (0.096 R)
• M16: 11,081,163 km (0.104 R)
• M17: 12,088,106 km (0.079 R)
• M18: 13,199,020 km (0.102 R)
• M19: 16,324,269 km (0.107 R)
• M20: 16,837,390 km (0.079 R)
• M21: 17,788,234 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.7

Radius: 14.5

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.74 AU - 3.24 AU

Year: 3392 Days

Day: 6.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,143,739 km

• M1: 180,565 km (0.063 R)
• M2: 704,606 km (0.039 R)
• M3: 1,361,041 km (0.106 R)
• M4: 1,988,156 km (0.071 R)
• M5: 2,708,021 km (0.065 R)
• M6: 3,461,994 km (0.081 R)
• M7: 4,511,423 km (0.089 R)
• M8: 5,469,747 km (0.038 R)
• M9: 6,068,138 km (0.111 R)
• M10: 6,800,869 km (0.109 R)
• M11: 7,428,881 km (0.072 R)
• M12: 7,959,056 km (0.112 R)
• M13: 11,515,595 km (0.109 R)
• M14: 12,921,516 km (0.114 R)
• M15: 13,887,619 km (0.107 R)
• M16: 15,373,276 km (0.076 R)
• M17: 16,793,408 km (0.102 R)
• M18: 17,477,519 km (0.081 R)
• M19: 17,943,965 km (0.081 R)
• M20: 19,579,968 km (0.086 R)
• M21: 22,868,877 km (0.04 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.6

Radius: 10.4

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 3.5 AU - 5.76 AU

Year: 6536 Days

Day: 7.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 74,143,739 km

• M1: 129,402 km (0.111 R)
• M2: 503,846 km (0.104 R)
• M3: 1,089,222 km (0.049 R)
• M4: 1,975,440 km (0.089 R)
• M5: 2,385,188 km (0.05 R)
• M6: 3,304,617 km (0.119 R)
• M7: 3,645,850 km (0.1 R)
• M8: 4,116,485 km (0.085 R)
• M9: 4,467,441 km (0.117 R)
• M10: 5,056,109 km (0.082 R)
• M11: 6,621,651 km (0.113 R)
• M12: 7,645,050 km (0.085 R)
• M13: 9,206,253 km (0.083 R)
• M14: 9,732,688 km (0.113 R)
• M15: 10,479,181 km (0.046 R)
• M16: 17,428,750 km (0.073 R)
• M17: 18,826,144 km (0.059 R)
• M18: 20,046,414 km (0.072 R)
• M19: 20,422,653 km (0.106 R)
• M20: 20,803,529 km (0.061 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 578.8

Radius: 7.5

Gravity: 10.29 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 5.11 AU - 8.37 AU

Year: 11479 Days

Day: 22 Hours

Environment

Temp: -230 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,143,739 km

• M1: 98,136 km (0.081 R)
• M2: 354,547 km (0.045 R)
• M3: 593,006 km (0.09 R)
• M4: 1,124,527 km (0.045 R)
• M5: 1,924,277 km (0.062 R)
• M6: 2,465,074 km (0.08 R)
• M7: 3,561,028 km (0.086 R)
• M8: 7,988,377 km (0.119 R)
• M9: 8,388,252 km (0.09 R)
• M10: 9,422,123 km (0.115 R)
• M11: 11,459,496 km (0.11 R)
• M12: 18,524,256 km (0.106 R)
• M13: 19,067,894 km (0.05 R)
• M14: 20,679,662 km (0.087 R)
• M15: 21,774,718 km (0.075 R)
• M16: 31,413,458 km (0.101 R)
• M17: 37,460,204 km (0.077 R)
• M18: 44,101,452 km (0.069 R)
• M19: 48,645,637 km (0.054 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 304.8

Radius: 6

Gravity: 8.47 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 6.95 AU - 10.27 AU

Year: 16573 Days

Day: 24.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 74,143,739 km

• M1: 76,145 km (0.114 R)
• M2: 465,848 km (0.083 R)
• M3: 764,445 km (0.098 R)
• M4: 1,234,482 km (0.081 R)
• M5: 1,555,369 km (0.089 R)
• M6: 1,880,445 km (0.088 R)
• M7: 2,139,698 km (0.105 R)
• M8: 2,949,621 km (0.074 R)
• M9: 3,627,449 km (0.084 R)
• M10: 3,893,135 km (0.091 R)
• M11: 4,737,914 km (0.106 R)
• M12: 5,055,660 km (0.112 R)
• M13: 6,743,872 km (0.078 R)
• M14: 7,522,080 km (0.108 R)
• M15: 8,635,238 km (0.1 R)
• M16: 9,905,174 km (0.109 R)
• M17: 10,425,176 km (0.077 R)
• M18: 10,799,919 km (0.071 R)
• M19: 11,576,332 km (0.115 R)
• M20: 12,448,787 km (0.107 R)
• M21: 13,552,669 km (0.107 R)
• M22: 13,742,808 km (0.116 R)
• M23: 14,587,288 km (0.104 R)
• M24: 15,813,093 km (0.088 R)
• M25: 20,811,607 km (0.113 R)
• M26: 22,186,112 km (0.058 R)
• M27: 23,346,393 km (0.091 R)
• M28: 27,371,623 km (0.098 R)
• M29: 29,229,778 km (0.075 R)
• M30: 30,514,226 km (0.101 R)
• M31: 30,950,603 km (0.09 R)
• M32: 34,005,990 km (0.11 R)
• M33: 35,666,676 km (0.057 R)
• M34: 39,405,874 km (0.084 R)
• M35: 43,261,011 km (0.06 R)
• M36: 47,945,070 km (0.108 R)
• M37: 48,534,935 km (0.076 R)
• M38: 49,278,885 km (0.085 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 553.5

Radius: 5

Gravity: 22.14 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 7.96 AU - 12.46 AU

Year: 21402 Days

Day: 24 Hours

Environment

Temp: -229 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 74,143,739 km

• M1: 62,382 km (0.082 R)
• M2: 297,550 km (0.088 R)
• M3: 459,265 km (0.079 R)
• M4: 798,404 km (0.044 R)
• M5: 1,887,776 km (0.084 R)
• M6: 2,724,476 km (0.094 R)
• M7: 3,461,246 km (0.119 R)
• M8: 3,754,159 km (0.045 R)
• M9: 4,095,242 km (0.095 R)
• M10: 6,244,514 km (0.114 R)
• M11: 7,753,508 km (0.104 R)
• M12: 8,203,947 km (0.099 R)
• M13: 9,047,380 km (0.106 R)
• M14: 10,538,871 km (0.05 R)
• M15: 11,792,351 km (0.116 R)
• M16: 12,522,389 km (0.077 R)
• M17: 13,002,449 km (0.083 R)
• M18: 13,282,346 km (0.05 R)
• M19: 15,199,742 km (0.097 R)
• M20: 19,664,790 km (0.039 R)
• M21: 20,406,795 km (0.083 R)
• M22: 20,879,973 km (0.082 R)
• M23: 28,645,000 km (0.119 R)
• M24: 29,237,857 km (0.049 R)
• M25: 29,597,640 km (0.117 R)
• M26: 30,571,222 km (0.115 R)
• M27: 32,582,267 km (0.038 R)
• M28: 34,412,746 km (0.063 R)
• M29: 45,879,423 km (0.077 R)
• M30: 47,182,271 km (0.083 R)
• M31: 53,887,846 km (0.049 R)
• M32: 56,441,781 km (0.099 R)
• M33: 68,936,793 km (0.054 R)
• M34: 69,573,931 km (0.092 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 519 - 19,864 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit