🌌 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: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.93

Radius: 0.97

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.54 AU - 0.54 AU

Year: 260 Days

Day: 26.6 Hours

Environment

Temp: -123 °C

Axial Tilt: 5.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.8

Radius: 13.8

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.78 AU - 1.28 AU

Year: 686 Days

Day: 12.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 87,230,101 km

• M1: 172,337 km (0.047 R)
• M2: 756,816 km (0.097 R)
• M3: 1,774,380 km (0.082 R)
• M4: 2,270,297 km (0.115 R)
• M5: 2,708,021 km (0.089 R)
• M6: 3,665,447 km (0.104 R)
• M7: 4,696,176 km (0.115 R)
• M8: 5,589,874 km (0.105 R)
• M9: 6,752,698 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609

Radius: 11

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 2.8 AU - 4 AU

Year: 4113 Days

Day: 13.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 87,230,101 km

• M1: 137,780 km (0.101 R)
• M2: 505,042 km (0.107 R)
• M3: 863,180 km (0.044 R)
• M4: 1,233,135 km (0.058 R)
• M5: 1,699,282 km (0.111 R)
• M6: 2,110,676 km (0.031 R)
• M7: 2,735,547 km (0.116 R)
• M8: 3,119,564 km (0.106 R)
• M9: 3,847,508 km (0.114 R)
• M10: 4,424,207 km (0.087 R)
• M11: 5,396,893 km (0.061 R)
• M12: 6,446,023 km (0.085 R)
• M13: 8,647,804 km (0.045 R)
• M14: 9,096,299 km (0.114 R)
• M15: 9,442,767 km (0.095 R)
• M16: 9,798,212 km (0.052 R)
• M17: 10,493,842 km (0.067 R)
• M18: 11,487,172 km (0.118 R)
• M19: 12,307,267 km (0.088 R)
• M20: 13,313,014 km (0.119 R)
• M21: 18,557,317 km (0.054 R)
• M22: 20,267,370 km (0.079 R)
• M23: 20,860,077 km (0.058 R)
• M24: 21,668,204 km (0.07 R)
• M25: 23,562,861 km (0.043 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.2

Radius: 9.5

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 5.45 AU - 6.27 AU

Year: 9306 Days

Day: 5.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 87,230,101 km

• M1: 118,930 km (0.094 R)
• M2: 414,386 km (0.084 R)
• M3: 717,920 km (0.12 R)
• M4: 1,059,602 km (0.074 R)
• M5: 2,369,181 km (0.113 R)
• M6: 3,522,282 km (0.116 R)
• M7: 4,355,991 km (0.092 R)
• M8: 6,266,056 km (0.111 R)
• M9: 6,796,979 km (0.038 R)
• M10: 10,882,796 km (0.095 R)
• M11: 20,387,198 km (0.072 R)
• M12: 22,218,725 km (0.098 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 461.5

Radius: 7.9

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 5.47 AU - 7.75 AU

Year: 11148 Days

Day: 19.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 87,230,101 km

• M1: 99,034 km (0.06 R)
• M2: 412,292 km (0.106 R)
• M3: 845,677 km (0.116 R)
• M4: 1,141,881 km (0.026 R)
• M5: 2,961,888 km (0.09 R)
• M6: 3,707,484 km (0.091 R)
• M7: 4,070,857 km (0.091 R)
• M8: 5,938,587 km (0.093 R)
• M9: 6,733,999 km (0.107 R)
• M10: 7,476,453 km (0.081 R)
• M11: 8,985,297 km (0.089 R)
• M12: 10,431,609 km (0.05 R)
• M13: 11,370,485 km (0.104 R)
• M14: 11,860,568 km (0.037 R)
• M15: 13,295,810 km (0.106 R)
• M16: 13,901,083 km (0.089 R)
• M17: 14,588,036 km (0.115 R)
• M18: 14,843,400 km (0.108 R)
• M19: 18,144,726 km (0.11 R)
• M20: 19,731,660 km (0.088 R)
• M21: 21,082,529 km (0.114 R)
• M22: 21,739,114 km (0.041 R)
• M23: 22,072,418 km (0.071 R)
• M24: 22,493,985 km (0.118 R)
• M25: 24,144,797 km (0.083 R)
• M26: 25,228,035 km (0.113 R)
• M27: 26,155,243 km (0.027 R)
• M28: 27,783,317 km (0.066 R)
• M29: 31,985,970 km (0.076 R)
• M30: 37,302,977 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 402.6

Radius: 5.9

Gravity: 11.57 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 7.93 AU - 8.01 AU

Year: 14760 Days

Day: 20 Hours

Environment

Temp: -220 °C

Axial Tilt: 142.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 87,230,101 km

• M1: 86,318 km (0.054 R)
• M2: 311,164 km (0.071 R)
• M3: 501,751 km (0.088 R)
• M4: 722,408 km (0.091 R)
• M5: 1,178,083 km (0.026 R)
• M6: 1,421,329 km (0.086 R)
• M7: 1,941,332 km (0.081 R)
• M8: 3,399,911 km (0.104 R)
• M9: 3,629,544 km (0.073 R)
• M10: 4,148,499 km (0.103 R)
• M11: 4,684,657 km (0.108 R)
• M12: 5,001,805 km (0.093 R)
• M13: 5,539,011 km (0.095 R)
• M14: 6,688,222 km (0.11 R)
• M15: 7,381,757 km (0.047 R)
• M16: 10,640,149 km (0.061 R)
• M17: 11,356,722 km (0.069 R)
• M18: 11,871,189 km (0.089 R)
• M19: 14,881,248 km (0.068 R)
• M20: 16,344,615 km (0.085 R)
• M21: 17,901,629 km (0.075 R)
• M22: 20,376,576 km (0.116 R)
• M23: 25,797,554 km (0.111 R)
• M24: 28,004,273 km (0.062 R)
• M25: 31,322,653 km (0.106 R)
• M26: 32,560,575 km (0.117 R)
• M27: 35,013,531 km (0.079 R)
• M28: 51,120,584 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 799.2

Radius: 3.2

Gravity: 78.05 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 7.75 AU - 10.23 AU

Year: 17683 Days

Day: 16.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 87,230,101 km

• M1: 50,714 km (0.089 R)
• M2: 205,547 km (0.114 R)
• M3: 359,184 km (0.038 R)
• M4: 703,409 km (0.053 R)
• M5: 868,715 km (0.091 R)
• M6: 1,178,382 km (0.081 R)
• M7: 1,381,387 km (0.096 R)
• M8: 1,607,280 km (0.097 R)
• M9: 1,747,004 km (0.117 R)
• M10: 1,933,104 km (0.036 R)
• M11: 2,236,787 km (0.111 R)
• M12: 2,738,539 km (0.112 R)
• M13: 3,094,582 km (0.078 R)
• M14: 3,596,632 km (0.112 R)
• M15: 4,118,579 km (0.058 R)
• M16: 4,248,430 km (0.083 R)
• M17: 4,448,293 km (0.099 R)
• M18: 4,550,468 km (0.119 R)
• M19: 7,599,273 km (0.06 R)
• M20: 8,453,327 km (0.107 R)
• M21: 8,984,549 km (0.096 R)
• M22: 10,589,884 km (0.062 R)
• M23: 11,019,230 km (0.078 R)
• M24: 12,647,453 km (0.092 R)
• M25: 16,209,677 km (0.109 R)
• M26: 19,737,345 km (0.081 R)
• M27: 20,386,599 km (0.068 R)
• M28: 25,011,717 km (0.085 R)
• M29: 26,212,838 km (0.068 R)
• M30: 40,257,685 km (0.116 R)
• M31: 45,973,071 km (0.089 R)
• M32: 49,276,342 km (0.099 R)
• M33: 50,468,936 km (0.106 R)
• M34: 51,855,110 km (0.116 R)
• M35: 63,070,462 km (0.046 R)
• M36: 63,469,889 km (0.111 R)
• M37: 64,475,635 km (0.084 R)
• M38: 66,725,587 km (0.075 R)
• M39: 72,906,821 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 597.7

Radius: 5.7

Gravity: 18.4 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 8 AU - 11.62 AU

Year: 20156 Days

Day: 22.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 87,230,101 km

• M1: 70,909 km (0.07 R)
• M2: 322,234 km (0.099 R)
• M3: 690,693 km (0.092 R)
• M4: 1,414,298 km (0.046 R)
• M5: 1,815,071 km (0.06 R)
• M6: 2,288,548 km (0.088 R)
• M7: 2,940,645 km (0.107 R)
• M8: 4,077,440 km (0.114 R)
• M9: 4,743,898 km (0.085 R)
• M10: 5,251,932 km (0.107 R)
• M11: 7,797,789 km (0.113 R)
• M12: 7,995,408 km (0.111 R)
• M13: 8,713,777 km (0.077 R)
• M14: 9,363,181 km (0.089 R)
• M15: 10,337,512 km (0.064 R)
• M16: 11,440,946 km (0.106 R)
• M17: 11,825,712 km (0.118 R)
• M18: 12,021,236 km (0.095 R)
• M19: 14,990,754 km (0.114 R)
• M20: 16,320,230 km (0.103 R)
• M21: 16,562,728 km (0.089 R)
• M22: 17,726,450 km (0.107 R)
• M23: 21,737,767 km (0.11 R)
• M24: 28,011,005 km (0.092 R)
• M25: 28,475,356 km (0.045 R)
• M26: 29,300,389 km (0.03 R)
• M27: 30,506,297 km (0.067 R)
• M28: 30,874,457 km (0.077 R)
• M29: 38,302,590 km (0.07 R)
• M30: 40,773,049 km (0.052 R)
• M31: 42,579,593 km (0.1 R)
• M32: 43,039,457 km (0.069 R)
• M33: 51,198,674 km (0.113 R)
• M34: 53,122,353 km (0.118 R)
• M35: 58,991,527 km (0.112 R)
• M36: 65,075,373 km (0.097 R)
• M37: 71,564,330 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 734.7

Radius: 6.5

Gravity: 17.39 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 10.44 AU - 11.42 AU

Year: 23705 Days

Day: 16 Hours

Environment

Temp: -223 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 87,230,101 km

• M1: 80,783 km (0.09 R)
• M2: 330,312 km (0.097 R)
• M3: 539,899 km (0.087 R)
• M4: 831,615 km (0.106 R)
• M5: 1,113,756 km (0.109 R)
• M6: 3,659,463 km (0.054 R)
• M7: 4,639,928 km (0.108 R)
• M8: 5,913,155 km (0.073 R)
• M9: 6,220,130 km (0.102 R)
• M10: 7,812,450 km (0.11 R)
• M11: 8,289,966 km (0.096 R)
• M12: 8,956,724 km (0.069 R)
• M13: 9,186,805 km (0.106 R)
• M14: 9,539,258 km (0.112 R)
• M15: 10,844,350 km (0.111 R)
• M16: 12,691,584 km (0.107 R)
• M17: 20,550,858 km (0.118 R)
• M18: 21,459,815 km (0.119 R)
• M19: 23,466,072 km (0.078 R)
• M20: 28,092,236 km (0.118 R)
• M21: 28,338,325 km (0.096 R)
• M22: 31,936,153 km (0.092 R)
• M23: 34,968,053 km (0.109 R)
• M24: 37,438,363 km (0.041 R)
• M25: 38,337,297 km (0.114 R)
• M26: 47,781,410 km (0.09 R)
• M27: 49,911,684 km (0.108 R)
• M28: 53,036,634 km (0.058 R)
• M29: 53,601,366 km (0.06 R)
• M30: 55,512,628 km (0.066 R)
• M31: 61,725,727 km (0.059 R)
• M32: 65,106,639 km (0.052 R)
• M33: 70,860,472 km (0.087 R)
• M34: 73,393,613 km (0.044 R)
• M35: 75,510,572 km (0.109 R)
• M36: 80,607,671 km (0.082 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: 308 - 17,467 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit