🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.8

Radius: 10.8

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.78 AU - 0.82 AU

Year: 494 Days

Day: 14.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,941,047 km

• M1: 134,488 km (0.076 R)
• M2: 604,675 km (0.089 R)
• M3: 963,709 km (0.089 R)
• M4: 1,364,033 km (0.109 R)
• M5: 1,869,076 km (0.078 R)
• M6: 2,297,674 km (0.106 R)
• M7: 2,869,287 km (0.109 R)
• M8: 3,556,390 km (0.054 R)
• M9: 4,481,803 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.3

Radius: 10.4

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.71 AU - 1.01 AU

Year: 551 Days

Day: 12.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,941,047 km

• M1: 129,402 km (0.117 R)
• M2: 561,291 km (0.094 R)
• M3: 1,042,847 km (0.059 R)
• M4: 1,616,405 km (0.08 R)
• M5: 2,192,506 km (0.07 R)
• M6: 2,529,401 km (0.118 R)
• M7: 2,867,791 km (0.077 R)
• M8: 3,521,085 km (0.1 R)
• M9: 4,155,530 km (0.07 R)
• M10: 4,944,509 km (0.11 R)
• M11: 5,409,010 km (0.104 R)
• M12: 5,866,331 km (0.042 R)
• M13: 6,216,839 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.5

Radius: 12

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.75 AU - 1.19 AU

Year: 659 Days

Day: 14 Hours

Environment

Temp: -168 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,941,047 km

• M1: 149,299 km (0.111 R)
• M2: 627,862 km (0.083 R)
• M3: 1,311,824 km (0.078 R)
• M4: 2,463,428 km (0.056 R)
• M5: 2,877,964 km (0.086 R)
• M6: 3,263,178 km (0.094 R)
• M7: 3,642,259 km (0.1 R)
• M8: 4,050,811 km (0.076 R)
• M9: 4,927,604 km (0.105 R)
• M10: 5,340,494 km (0.101 R)
• M11: 5,776,423 km (0.066 R)
• M12: 6,929,074 km (0.069 R)
• M13: 7,493,208 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.2

Radius: 12.5

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.42 AU - 1.48 AU

Year: 1205 Days

Day: 13.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 48,941,047 km

• M1: 155,432 km (0.071 R)
• M2: 702,362 km (0.106 R)
• M3: 3,392,132 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.8

Radius: 11.9

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2 AU - 2.42 AU

Year: 2268 Days

Day: 5.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 48,941,047 km

• M1: 148,102 km (0.115 R)
• M2: 649,404 km (0.112 R)
• M3: 1,043,296 km (0.105 R)
• M4: 1,555,668 km (0.115 R)
• M5: 2,137,454 km (0.113 R)
• M6: 3,209,024 km (0.118 R)
• M7: 3,602,915 km (0.072 R)
• M8: 4,178,568 km (0.089 R)
• M9: 4,732,080 km (0.102 R)
• M10: 5,747,401 km (0.088 R)
• M11: 8,357,584 km (0.086 R)
• M12: 9,141,477 km (0.095 R)
• M13: 10,042,505 km (0.081 R)
• M14: 11,334,582 km (0.091 R)
• M15: 11,789,060 km (0.094 R)
• M16: 12,255,656 km (0.114 R)
• M17: 13,019,802 km (0.088 R)
• M18: 14,866,288 km (0.058 R)

Asteroid Belt

Center: 2.71 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 633.7

Radius: 10.7

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 3.08 AU - 3.32 AU

Year: 3951 Days

Day: 6.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 48,941,047 km

• M1: 133,740 km (0.084 R)
• M2: 509,979 km (0.088 R)
• M3: 952,789 km (0.106 R)
• M4: 1,339,499 km (0.097 R)
• M5: 1,908,121 km (0.102 R)
• M6: 2,730,311 km (0.088 R)
• M7: 3,278,886 km (0.106 R)
• M8: 4,765,889 km (0.066 R)
• M9: 6,660,097 km (0.103 R)
• M10: 8,033,705 km (0.058 R)
• M11: 8,567,320 km (0.083 R)
• M12: 9,011,177 km (0.075 R)
• M13: 10,065,992 km (0.044 R)
• M14: 11,687,782 km (0.104 R)
• M15: 12,050,108 km (0.072 R)
• M16: 12,607,959 km (0.064 R)
• M17: 14,854,470 km (0.083 R)
• M18: 17,355,747 km (0.106 R)
• M19: 20,712,723 km (0.074 R)
• M20: 22,196,584 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.5

Radius: 9.9

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 4.55 AU - 5.63 AU

Year: 7927 Days

Day: 12.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 48,941,047 km

• M1: 129,552 km (0.112 R)
• M2: 467,344 km (0.06 R)
• M3: 923,318 km (0.077 R)
• M4: 1,245,402 km (0.105 R)
• M5: 1,644,081 km (0.09 R)
• M6: 4,054,551 km (0.114 R)
• M7: 5,203,014 km (0.12 R)
• M8: 6,493,894 km (0.076 R)
• M9: 8,420,715 km (0.093 R)
• M10: 8,832,408 km (0.105 R)
• M11: 11,319,472 km (0.111 R)
• M12: 13,266,040 km (0.112 R)
• M13: 14,187,563 km (0.109 R)
• M14: 17,689,200 km (0.106 R)
• M15: 19,186,974 km (0.079 R)
• M16: 23,665,486 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 888.5

Radius: 7.7

Gravity: 14.99 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 5.84 AU - 5.92 AU

Year: 9842 Days

Day: 21.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 132.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 48,941,047 km

• M1: 99,333 km (0.113 R)
• M2: 449,841 km (0.071 R)
• M3: 699,669 km (0.054 R)
• M4: 1,111,961 km (0.115 R)
• M5: 1,546,094 km (0.076 R)
• M6: 2,884,097 km (0.096 R)
• M7: 4,345,220 km (0.082 R)
• M8: 4,926,707 km (0.107 R)
• M9: 5,805,145 km (0.096 R)
• M10: 6,395,309 km (0.1 R)
• M11: 7,024,966 km (0.106 R)
• M12: 10,013,184 km (0.118 R)
• M13: 11,415,066 km (0.097 R)
• M14: 13,692,693 km (0.108 R)
• M15: 14,470,752 km (0.117 R)
• M16: 15,277,982 km (0.044 R)
• M17: 15,762,380 km (0.045 R)
• M18: 17,727,647 km (0.079 R)
• M19: 19,284,961 km (0.119 R)
• M20: 20,846,762 km (0.03 R)
• M21: 22,402,431 km (0.116 R)
• M22: 27,633,719 km (0.073 R)
• M23: 28,146,241 km (0.112 R)
• M24: 32,025,015 km (0.06 R)
• M25: 33,741,201 km (0.095 R)
• M26: 35,397,549 km (0.064 R)
• M27: 38,235,271 km (0.096 R)
• M28: 40,690,920 km (0.097 R)
• M29: 42,838,846 km (0.116 R)
• M30: 43,112,610 km (0.049 R)
• M31: 44,638,808 km (0.094 R)
• M32: 50,645,312 km (0.067 R)
• M33: 51,567,134 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 815.9

Radius: 6.7

Gravity: 18.18 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 5.34 AU - 7.32 AU

Year: 10993 Days

Day: 20.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 48,941,047 km

• M1: 83,326 km (0.12 R)
• M2: 483,949 km (0.12 R)
• M3: 968,796 km (0.108 R)
• M4: 1,788,443 km (0.051 R)
• M5: 2,096,764 km (0.035 R)
• M6: 2,798,378 km (0.119 R)
• M7: 3,095,479 km (0.09 R)
• M8: 3,945,494 km (0.108 R)
• M9: 4,439,915 km (0.092 R)
• M10: 5,308,780 km (0.072 R)
• M11: 6,096,861 km (0.082 R)
• M12: 6,324,699 km (0.041 R)
• M13: 6,677,151 km (0.083 R)
• M14: 7,251,308 km (0.11 R)
• M15: 8,037,445 km (0.067 R)
• M16: 8,976,022 km (0.069 R)
• M17: 10,090,526 km (0.112 R)
• M18: 12,530,617 km (0.092 R)
• M19: 13,984,858 km (0.092 R)
• M20: 14,583,399 km (0.045 R)
• M21: 16,335,639 km (0.117 R)
• M22: 16,702,153 km (0.03 R)
• M23: 19,018,078 km (0.037 R)
• M24: 19,423,788 km (0.11 R)
• M25: 24,086,304 km (0.109 R)
• M26: 26,322,942 km (0.094 R)
• M27: 27,646,584 km (0.106 R)
• M28: 28,694,517 km (0.079 R)
• M29: 29,877,537 km (0.11 R)
• M30: 32,802,475 km (0.09 R)
• M31: 35,789,645 km (0.107 R)
• M32: 38,049,470 km (0.113 R)
• M33: 39,083,641 km (0.12 R)
• M34: 48,191,159 km (0.077 R)
• M35: 49,248,965 km (0.069 R)
• M36: 52,515,285 km (0.119 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 205.1

Radius: 8

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 6.83 AU - 11.31 AU

Year: 18855 Days

Day: 24.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 48,941,047 km

• M1: 99,483 km (0.066 R)
• M2: 384,317 km (0.109 R)
• M3: 693,685 km (0.11 R)
• M4: 1,854,714 km (0.112 R)
• M5: 2,553,486 km (0.081 R)
• M6: 3,109,541 km (0.106 R)
• M7: 4,119,776 km (0.093 R)
• M8: 4,432,585 km (0.045 R)
• M9: 5,501,013 km (0.067 R)
• M10: 6,168,070 km (0.109 R)
• M11: 7,207,476 km (0.08 R)
• M12: 8,137,227 km (0.082 R)
• M13: 10,130,469 km (0.05 R)
• M14: 12,254,160 km (0.102 R)
• M15: 15,798,134 km (0.107 R)
• M16: 18,405,624 km (0.114 R)
• M17: 23,997,892 km (0.109 R)
• M18: 38,255,915 km (0.11 R)
• M19: 39,512,388 km (0.063 R)
• M20: 48,502,771 km (0.076 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 540 - 15,321 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit