🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.8

Radius: 12.8

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.48 AU - 0.64 AU

Year: 279 Days

Day: 9.3 Hours

Environment

Temp: -141 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 85,795,545 km

• M1: 159,172 km (0.116 R)
• M2: 564,134 km (0.119 R)
• M3: 1,032,225 km (0.075 R)
• M4: 1,961,078 km (0.103 R)
• M5: 2,425,729 km (0.111 R)
• M6: 2,859,563 km (0.109 R)
• M7: 3,419,359 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.8

Radius: 12.1

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.61 AU - 0.93 AU

Year: 451 Days

Day: 11.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 85,795,545 km

• M1: 150,495 km (0.115 R)
• M2: 581,487 km (0.08 R)
• M3: 1,044,792 km (0.088 R)
• M4: 1,618,649 km (0.079 R)
• M5: 1,999,974 km (0.107 R)
• M6: 2,610,184 km (0.078 R)
• M7: 3,087,401 km (0.111 R)
• M8: 3,894,033 km (0.053 R)
• M9: 4,806,879 km (0.098 R)
• M10: 5,197,628 km (0.033 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301.2

Radius: 11.7

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.35 AU - 1.85 AU

Year: 1350 Days

Day: 11.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 85,795,545 km

• M1: 145,559 km (0.06 R)
• M2: 697,126 km (0.115 R)
• M3: 1,089,072 km (0.089 R)
• M4: 1,674,449 km (0.088 R)
• M5: 2,289,296 km (0.078 R)
• M6: 2,727,319 km (0.047 R)
• M7: 3,194,513 km (0.069 R)
• M8: 4,324,276 km (0.098 R)
• M9: 5,202,116 km (0.091 R)
• M10: 5,844,041 km (0.114 R)
• M11: 6,407,875 km (0.114 R)
• M12: 7,030,651 km (0.097 R)
• M13: 7,596,281 km (0.081 R)
• M14: 8,845,722 km (0.107 R)
• M15: 9,309,625 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.2

Radius: 12.3

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.57 AU - 2.25 AU

Year: 1760 Days

Day: 10.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 85,795,545 km

• M1: 153,039 km (0.1 R)
• M2: 636,988 km (0.077 R)
• M3: 1,121,685 km (0.111 R)
• M4: 1,533,977 km (0.041 R)
• M5: 2,077,316 km (0.105 R)
• M6: 3,265,871 km (0.059 R)
• M7: 4,313,355 km (0.084 R)
• M8: 5,554,419 km (0.051 R)
• M9: 6,348,784 km (0.097 R)
• M10: 6,933,861 km (0.103 R)
• M11: 8,044,326 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.9

Radius: 11.7

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.98 AU - 3.3 AU

Year: 2860 Days

Day: 9.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 85,795,545 km

• M1: 145,858 km (0.077 R)
• M2: 560,693 km (0.108 R)
• M3: 951,143 km (0.087 R)
• M4: 1,336,059 km (0.084 R)
• M5: 1,874,761 km (0.104 R)
• M6: 2,243,220 km (0.084 R)
• M7: 2,706,824 km (0.1 R)
• M8: 3,888,497 km (0.033 R)
• M9: 4,674,634 km (0.064 R)
• M10: 5,263,601 km (0.112 R)
• M11: 5,822,349 km (0.043 R)
• M12: 6,364,342 km (0.081 R)
• M13: 7,965,189 km (0.081 R)
• M14: 9,376,495 km (0.113 R)
• M15: 9,744,805 km (0.096 R)
• M16: 10,199,433 km (0.05 R)
• M17: 11,069,644 km (0.095 R)
• M18: 11,606,850 km (0.116 R)
• M19: 12,074,942 km (0.05 R)
• M20: 12,733,472 km (0.079 R)
• M21: 14,266,551 km (0.116 R)
• M22: 15,153,068 km (0.056 R)
• M23: 16,444,546 km (0.106 R)
• M24: 18,089,823 km (0.088 R)
• M25: 18,952,405 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.2

Radius: 10.8

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 2.85 AU - 2.91 AU

Year: 3259 Days

Day: 7.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 85,795,545 km

• M1: 134,339 km (0.119 R)
• M2: 587,620 km (0.039 R)
• M3: 945,010 km (0.097 R)
• M4: 1,403,677 km (0.098 R)
• M5: 1,813,126 km (0.1 R)
• M6: 2,274,636 km (0.082 R)
• M7: 3,362,960 km (0.104 R)
• M8: 3,721,995 km (0.092 R)
• M9: 4,518,304 km (0.047 R)
• M10: 5,150,355 km (0.092 R)
• M11: 6,362,098 km (0.117 R)
• M12: 7,035,139 km (0.033 R)
• M13: 7,755,004 km (0.055 R)
• M14: 8,696,723 km (0.071 R)
• M15: 9,159,130 km (0.059 R)
• M16: 12,331,203 km (0.077 R)
• M17: 13,471,139 km (0.06 R)
• M18: 13,946,261 km (0.101 R)
• M19: 14,580,706 km (0.083 R)
• M20: 15,542,321 km (0.075 R)
• M21: 16,065,166 km (0.114 R)
• M22: 16,762,441 km (0.096 R)
• M23: 21,633,946 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.4

Radius: 10.3

Gravity: 7.52 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 3.32 AU - 5.32 AU

Year: 5988 Days

Day: 6.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 85,795,545 km

• M1: 129,851 km (0.099 R)
• M2: 487,839 km (0.099 R)
• M3: 1,025,942 km (0.116 R)
• M4: 2,086,591 km (0.088 R)
• M5: 2,810,495 km (0.106 R)
• M6: 3,210,221 km (0.115 R)
• M7: 5,234,130 km (0.117 R)
• M8: 7,458,501 km (0.074 R)
• M9: 9,310,373 km (0.046 R)
• M10: 10,624,441 km (0.115 R)
• M11: 12,581,630 km (0.102 R)
• M12: 13,229,388 km (0.116 R)
• M13: 16,296,294 km (0.118 R)
• M14: 17,065,975 km (0.058 R)
• M15: 20,389,442 km (0.084 R)
• M16: 20,832,999 km (0.103 R)
• M17: 21,970,392 km (0.105 R)
• M18: 26,671,804 km (0.107 R)
• M19: 27,024,855 km (0.058 R)
• M20: 27,921,395 km (0.057 R)
• M21: 29,303,081 km (0.116 R)
• M22: 30,729,946 km (0.083 R)
• M23: 33,824,527 km (0.062 R)
• M24: 35,181,978 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 155.9

Radius: 7.9

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 5.67 AU - 7.09 AU

Year: 10746 Days

Day: 24.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 85,795,545 km

• M1: 98,735 km (0.082 R)
• M2: 470,635 km (0.111 R)
• M3: 762,949 km (0.082 R)
• M4: 1,699,282 km (0.067 R)
• M5: 1,970,204 km (0.103 R)
• M6: 3,440,901 km (0.114 R)
• M7: 3,743,238 km (0.111 R)
• M8: 4,134,287 km (0.025 R)
• M9: 5,916,596 km (0.093 R)
• M10: 6,383,940 km (0.055 R)
• M11: 6,643,193 km (0.096 R)
• M12: 7,971,771 km (0.092 R)
• M13: 10,868,285 km (0.116 R)
• M14: 11,906,794 km (0.095 R)
• M15: 13,639,735 km (0.116 R)
• M16: 16,243,187 km (0.085 R)
• M17: 19,294,685 km (0.115 R)
• M18: 20,113,434 km (0.074 R)
• M19: 21,674,188 km (0.038 R)
• M20: 23,467,119 km (0.08 R)
• M21: 24,399,712 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 982.6

Radius: 4.1

Gravity: 58.45 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 8.08 AU - 10.42 AU

Year: 18760 Days

Day: 22 Hours

Environment

Temp: -239 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 85,795,545 km

• M1: 51,013 km (0.1 R)
• M2: 182,659 km (0.11 R)
• M3: 406,906 km (0.079 R)
• M4: 688,898 km (0.082 R)
• M5: 1,077,105 km (0.069 R)
• M6: 1,668,465 km (0.067 R)
• M7: 1,816,567 km (0.032 R)
• M8: 2,405,534 km (0.083 R)
• M9: 3,196,159 km (0.062 R)
• M10: 3,544,273 km (0.094 R)
• M11: 4,454,277 km (0.098 R)
• M12: 6,095,964 km (0.114 R)
• M13: 6,584,700 km (0.081 R)
• M14: 7,945,891 km (0.062 R)
• M15: 9,897,844 km (0.119 R)
• M16: 12,705,646 km (0.095 R)
• M17: 19,731,211 km (0.058 R)
• M18: 21,291,816 km (0.025 R)
• M19: 22,619,048 km (0.093 R)
• M20: 26,233,782 km (0.092 R)
• M21: 26,464,462 km (0.086 R)
• M22: 33,894,390 km (0.087 R)
• M23: 35,417,745 km (0.11 R)
• M24: 39,803,356 km (0.106 R)
• M25: 47,039,106 km (0.055 R)
• M26: 48,411,068 km (0.041 R)
• M27: 49,985,885 km (0.108 R)
• M28: 50,163,008 km (0.087 R)
• M29: 58,179,210 km (0.068 R)
• M30: 65,302,014 km (0.087 R)
• M31: 74,128,438 km (0.178 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 918.7

Radius: 6

Gravity: 25.52 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 8.35 AU - 11.39 AU

Year: 20678 Days

Day: 16.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 85,795,545 km

• M1: 78,240 km (0.092 R)
• M2: 271,819 km (0.066 R)
• M3: 459,714 km (0.116 R)
• M4: 813,064 km (0.107 R)
• M5: 1,215,782 km (0.077 R)
• M6: 2,412,266 km (0.103 R)
• M7: 3,099,518 km (0.091 R)
• M8: 3,942,203 km (0.067 R)
• M9: 4,487,487 km (0.108 R)
• M10: 6,201,430 km (0.05 R)
• M11: 8,472,924 km (0.116 R)
• M12: 11,783,375 km (0.029 R)
• M13: 13,127,662 km (0.119 R)
• M14: 16,973,374 km (0.095 R)
• M15: 17,590,466 km (0.092 R)
• M16: 22,863,342 km (0.112 R)
• M17: 26,909,216 km (0.061 R)
• M18: 29,729,585 km (0.04 R)
• M19: 33,012,061 km (0.041 R)
• M20: 33,421,511 km (0.107 R)
• M21: 35,093,267 km (0.082 R)
• M22: 41,224,835 km (0.117 R)
• M23: 44,459,290 km (0.118 R)
• M24: 45,968,583 km (0.06 R)
• M25: 71,500,452 km (0.111 R)
• M26: 71,728,439 km (0.095 R)
• M27: 84,770,980 km (0.101 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 541 - 12,517 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit