🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.7

Radius: 9.6

Gravity: 10.53 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.5 AU - 0.84 AU

Year: 379 Days

Day: 9.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,541,177 km

• M1: 119,379 km (0.088 R)
• M2: 622,776 km (0.112 R)
• M3: 936,931 km (0.095 R)
• M4: 1,329,177 km (0.063 R)
• M5: 1,628,672 km (0.12 R)
• M6: 2,091,229 km (0.12 R)
• M7: 2,579,815 km (0.092 R)
• M8: 3,376,424 km (0.05 R)
• M9: 4,230,029 km (0.113 R)
• M10: 4,529,973 km (0.101 R)
• M11: 5,046,086 km (0.089 R)
• M12: 5,533,476 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.3

Radius: 13.4

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.9 AU - 1.32 AU

Year: 807 Days

Day: 12.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,541,177 km

• M1: 167,400 km (0.119 R)
• M2: 589,266 km (0.11 R)
• M3: 1,111,662 km (0.093 R)
• M4: 1,596,957 km (0.08 R)
• M5: 2,473,302 km (0.063 R)
• M6: 3,461,545 km (0.078 R)
• M7: 4,372,596 km (0.113 R)
• M8: 4,804,336 km (0.063 R)
• M9: 5,496,076 km (0.082 R)
• M10: 5,979,726 km (0.105 R)
• M11: 6,491,650 km (0.098 R)
• M12: 7,506,821 km (0.106 R)
• M13: 7,926,443 km (0.052 R)
• M14: 9,280,454 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934

Radius: 9.4

Gravity: 10.57 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.9 AU - 1.46 AU

Year: 885 Days

Day: 13.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,541,177 km

• M1: 116,836 km (0.069 R)
• M2: 436,975 km (0.049 R)
• M3: 862,881 km (0.074 R)
• M4: 1,186,760 km (0.031 R)
• M5: 1,525,898 km (0.115 R)
• M6: 1,834,519 km (0.099 R)
• M7: 2,217,190 km (0.051 R)
• M8: 2,544,660 km (0.084 R)
• M9: 3,117,470 km (0.111 R)
• M10: 4,077,739 km (0.119 R)
• M11: 4,608,662 km (0.099 R)
• M12: 4,993,876 km (0.083 R)
• M13: 6,458,888 km (0.101 R)
• M14: 7,132,826 km (0.092 R)
• M15: 8,511,820 km (0.112 R)
• M16: 9,121,880 km (0.117 R)
• M17: 10,000,318 km (0.107 R)
• M18: 10,491,299 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.7

Radius: 10.3

Gravity: 7.88 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.25 AU - 1.81 AU

Year: 1306 Days

Day: 7.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,541,177 km

• M1: 128,505 km (0.098 R)
• M2: 655,089 km (0.115 R)
• M3: 1,255,725 km (0.053 R)
• M4: 1,673,851 km (0.101 R)
• M5: 2,150,170 km (0.049 R)
• M6: 2,823,660 km (0.109 R)
• M7: 3,487,426 km (0.106 R)
• M8: 4,073,101 km (0.051 R)
• M9: 4,530,721 km (0.036 R)
• M10: 5,207,951 km (0.102 R)
• M11: 5,747,849 km (0.115 R)
• M12: 6,864,149 km (0.075 R)
• M13: 7,648,640 km (0.096 R)
• M14: 7,978,802 km (0.072 R)
• M15: 8,520,945 km (0.105 R)
• M16: 9,552,572 km (0.111 R)
• M17: 10,733,498 km (0.07 R)
• M18: 11,430,175 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.2

Radius: 8.9

Gravity: 8.52 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.52 AU - 1.76 AU

Year: 1450 Days

Day: 12.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,541,177 km

• M1: 110,702 km (0.066 R)
• M2: 388,057 km (0.06 R)
• M3: 971,489 km (0.095 R)
• M4: 1,572,423 km (0.11 R)
• M5: 1,956,740 km (0.067 R)
• M6: 2,318,169 km (0.104 R)
• M7: 2,631,277 km (0.085 R)
• M8: 3,374,778 km (0.069 R)
• M9: 3,829,556 km (0.091 R)
• M10: 4,723,702 km (0.072 R)
• M11: 5,293,820 km (0.051 R)
• M12: 5,617,699 km (0.114 R)
• M13: 5,909,116 km (0.105 R)
• M14: 6,186,919 km (0.072 R)
• M15: 6,473,549 km (0.11 R)
• M16: 6,794,137 km (0.098 R)
• M17: 7,413,921 km (0.092 R)
• M18: 8,014,556 km (0.091 R)
• M19: 8,384,661 km (0.079 R)
• M20: 10,408,571 km (0.089 R)
• M21: 12,246,830 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.1

Radius: 9

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 3.21 AU - 3.33 AU

Year: 4082 Days

Day: 12.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,541,177 km

• M1: 113,994 km (0.118 R)
• M2: 427,252 km (0.045 R)
• M3: 925,412 km (0.037 R)
• M4: 2,092,425 km (0.108 R)
• M5: 3,699,555 km (0.05 R)
• M6: 4,814,209 km (0.106 R)
• M7: 5,974,640 km (0.117 R)
• M8: 6,562,260 km (0.108 R)
• M9: 6,915,162 km (0.09 R)
• M10: 7,690,976 km (0.059 R)
• M11: 8,420,864 km (0.077 R)
• M12: 8,908,703 km (0.115 R)
• M13: 10,095,014 km (0.085 R)
• M14: 11,509,611 km (0.055 R)
• M15: 11,893,779 km (0.057 R)
• M16: 13,563,740 km (0.119 R)
• M17: 19,990,015 km (0.051 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.8

Radius: 11.6

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 3.12 AU - 4.84 AU

Year: 5481 Days

Day: 5.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 60,541,177 km

• M1: 144,362 km (0.08 R)
• M2: 522,994 km (0.081 R)
• M3: 1,123,031 km (0.084 R)
• M4: 1,621,342 km (0.111 R)
• M5: 2,108,732 km (0.085 R)
• M6: 3,993,216 km (0.077 R)
• M7: 7,195,358 km (0.104 R)
• M8: 7,671,080 km (0.079 R)
• M9: 9,920,134 km (0.031 R)
• M10: 13,542,048 km (0.084 R)
• M11: 19,817,080 km (0.063 R)
• M12: 22,252,085 km (0.12 R)
• M13: 25,547,128 km (0.065 R)
• M14: 32,392,427 km (0.035 R)
• M15: 33,792,813 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 55.2

Radius: 5.6

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 4.36 AU - 7.02 AU

Year: 9369 Days

Day: 20.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 60,541,177 km

• M1: 69,862 km (0.102 R)
• M2: 335,997 km (0.099 R)
• M3: 541,544 km (0.1 R)
• M4: 1,967,362 km (0.105 R)
• M5: 2,309,342 km (0.103 R)
• M6: 2,553,636 km (0.107 R)
• M7: 3,785,873 km (0.111 R)
• M8: 6,502,571 km (0.062 R)
• M9: 7,199,547 km (0.067 R)
• M10: 9,407,612 km (0.08 R)
• M11: 11,201,889 km (0.053 R)
• M12: 12,459,408 km (0.091 R)
• M13: 13,715,432 km (0.094 R)
• M14: 16,634,086 km (0.084 R)
• M15: 16,898,875 km (0.082 R)
• M16: 18,718,284 km (0.049 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 561.5

Radius: 8

Gravity: 8.77 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 7.02 AU - 7.24 AU

Year: 13142 Days

Day: 24.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 60,541,177 km

• M1: 99,483 km (0.11 R)
• M2: 372,798 km (0.035 R)
• M3: 633,397 km (0.104 R)
• M4: 938,876 km (0.087 R)
• M5: 1,684,472 km (0.054 R)
• M6: 3,117,620 km (0.081 R)
• M7: 3,435,515 km (0.083 R)
• M8: 3,774,953 km (0.112 R)
• M9: 4,491,078 km (0.113 R)
• M10: 4,833,507 km (0.051 R)
• M11: 5,466,157 km (0.118 R)
• M12: 5,820,554 km (0.089 R)
• M13: 10,909,874 km (0.11 R)
• M14: 12,114,136 km (0.118 R)
• M15: 17,901,330 km (0.088 R)
• M16: 18,684,325 km (0.066 R)
• M17: 20,486,980 km (0.092 R)
• M18: 21,343,427 km (0.057 R)
• M19: 22,492,339 km (0.03 R)
• M20: 28,967,533 km (0.114 R)
• M21: 32,858,724 km (0.057 R)
• M22: 34,868,720 km (0.101 R)
• M23: 40,316,028 km (0.088 R)
• M24: 42,479,662 km (0.078 R)
• M25: 42,755,371 km (0.103 R)
• M26: 43,450,103 km (0.11 R)
• M27: 46,743,051 km (0.089 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 326.4

Radius: 5.5

Gravity: 10.79 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 9.33 AU - 9.89 AU

Year: 20563 Days

Day: 23.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 60,541,177 km

• M1: 68,815 km (0.077 R)
• M2: 252,820 km (0.046 R)
• M3: 581,786 km (0.039 R)
• M4: 904,319 km (0.118 R)
• M5: 1,232,387 km (0.079 R)
• M6: 1,453,643 km (0.045 R)
• M7: 2,068,639 km (0.083 R)
• M8: 2,530,149 km (0.107 R)
• M9: 3,057,631 km (0.103 R)
• M10: 3,823,722 km (0.054 R)
• M11: 5,505,800 km (0.102 R)
• M12: 6,756,139 km (0.067 R)
• M13: 8,969,888 km (0.117 R)
• M14: 10,575,073 km (0.108 R)
• M15: 13,000,354 km (0.115 R)
• M16: 15,117,613 km (0.056 R)
• M17: 18,749,400 km (0.11 R)
• M18: 19,251,301 km (0.058 R)
• M19: 19,590,739 km (0.111 R)
• M20: 26,719,376 km (0.098 R)
• M21: 27,141,841 km (0.091 R)
• M22: 28,987,131 km (0.109 R)
• M23: 31,146,725 km (0.12 R)
• M24: 34,645,969 km (0.111 R)
• M25: 36,814,390 km (0.032 R)
• M26: 40,580,367 km (0.084 R)
• M27: 42,699,870 km (0.061 R)
• M28: 47,619,994 km (0.076 R)
• M29: 54,242,393 km (0.076 R)
• M30: 55,773,976 km (0.114 R)
• M31: 56,290,836 km (0.114 R)
• M32: 57,684,640 km (0.076 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 186 - 16,558 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit