🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.46 AU - 0.74 AU

Year: 305 Days

Day: 26.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 24.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 16,044,253 km

• M1: 260,300 km (0.043 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.65

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.55 AU - 0.69 AU

Year: 320 Days

Day: 33.6 Hours

Environment

Temp: -127 °C

Axial Tilt: 8.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.57 AU - 0.75 AU

Year: 352 Days

Day: 36.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 46.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.3

Radius: 10

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.76 AU - 0.84 AU

Year: 469 Days

Day: 10.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 16,044,253 km

• M1: 124,765 km (0.097 R)
• M2: 200,910 km (0.064 R)
• M3: 300,991 km (0.04 R)
• M4: 380,577 km (0.112 R)
• M5: 451,636 km (0.095 R)
• M6: 515,664 km (0.085 R)
• M7: 586,723 km (0.098 R)
• M8: 700,567 km (0.115 R)
• M9: 795,861 km (0.046 R)
• M10: 880,234 km (0.076 R)
• M11: 1,004,550 km (0.03 R)
• M12: 1,096,552 km (0.08 R)
• M13: 1,187,209 km (0.043 R)
• M14: 1,257,968 km (0.082 R)
• M15: 1,321,248 km (0.084 R)
• M16: 1,517,670 km (0.03 R)
• M17: 1,585,289 km (0.054 R)
• M18: 1,668,914 km (0.108 R)
• M19: 1,779,317 km (0.102 R)
• M20: 1,876,705 km (0.118 R)
• M21: 1,939,088 km (0.09 R)
• M22: 2,317,570 km (0.111 R)
• M23: 2,498,434 km (0.083 R)
• M24: 2,602,255 km (0.117 R)
• M25: 2,678,101 km (0.096 R)
• M26: 2,868,090 km (0.104 R)
• M27: 2,946,629 km (0.078 R)
• M28: 3,068,851 km (0.098 R)
• M29: 3,248,967 km (0.119 R)
• M30: 3,356,228 km (0.113 R)
• M31: 3,432,673 km (0.087 R)
• M32: 3,593,790 km (0.065 R)
• M33: 3,704,791 km (0.098 R)
• M34: 3,797,093 km (0.12 R)
• M35: 3,896,875 km (0.098 R)
• M36: 4,004,286 km (0.025 R)
• M37: 4,160,466 km (0.119 R)
• M38: 4,235,864 km (0.108 R)
• M39: 4,339,385 km (0.109 R)
• M40: 4,464,898 km (0.044 R)
• M41: 4,577,396 km (0.097 R)
• M42: 4,719,214 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.1

Radius: 9.9

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.79 AU - 0.81 AU

Year: 469 Days

Day: 8.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 16,044,253 km

• M1: 124,316 km (0.105 R)
• M2: 189,840 km (0.096 R)
• M3: 254,167 km (0.063 R)
• M4: 386,561 km (0.101 R)
• M5: 496,665 km (0.093 R)
• M6: 588,967 km (0.099 R)
• M7: 666,758 km (0.094 R)
• M8: 788,830 km (0.057 R)
• M9: 954,734 km (0.104 R)
• M10: 1,064,987 km (0.077 R)
• M11: 1,184,067 km (0.118 R)
• M12: 1,258,567 km (0.102 R)
• M13: 1,321,248 km (0.082 R)
• M14: 1,468,602 km (0.116 R)
• M15: 1,558,810 km (0.074 R)
• M16: 1,690,157 km (0.08 R)
• M17: 1,795,025 km (0.097 R)
• M18: 1,886,728 km (0.106 R)
• M19: 2,021,965 km (0.075 R)
• M20: 2,112,172 km (0.057 R)
• M21: 2,187,420 km (0.087 R)
• M22: 2,274,636 km (0.103 R)
• M23: 2,374,268 km (0.082 R)
• M24: 2,480,931 km (0.1 R)
• M25: 2,566,351 km (0.114 R)
• M26: 2,687,526 km (0.098 R)
• M27: 2,798,976 km (0.077 R)
• M28: 2,935,858 km (0.087 R)
• M29: 3,002,130 km (0.105 R)
• M30: 3,105,502 km (0.091 R)
• M31: 3,241,187 km (0.117 R)
• M32: 3,303,420 km (0.087 R)
• M33: 3,397,667 km (0.076 R)
• M34: 3,582,570 km (0.049 R)
• M35: 3,653,479 km (0.112 R)
• M36: 3,764,032 km (0.072 R)
• M37: 3,995,460 km (0.062 R)
• M38: 4,129,649 km (0.082 R)
• M39: 4,272,366 km (0.077 R)
• M40: 4,340,881 km (0.115 R)
• M41: 4,430,491 km (0.066 R)
• M42: 4,492,873 km (0.084 R)
• M43: 4,576,498 km (0.07 R)
• M44: 4,703,058 km (0.051 R)
• M45: 4,887,811 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.7

Radius: 9.5

Gravity: 6.53 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.8 AU - 1.08 AU

Year: 598 Days

Day: 6.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (50)

Outer Limit: 16,044,253 km

• M1: 120,576 km (0.091 R)
• M2: 181,462 km (0.098 R)
• M3: 256,112 km (0.06 R)
• M4: 354,697 km (0.087 R)
• M5: 454,329 km (0.054 R)
• M6: 565,031 km (0.103 R)
• M7: 740,360 km (0.118 R)
• M8: 806,183 km (0.112 R)
• M9: 874,100 km (0.073 R)
• M10: 959,521 km (0.082 R)
• M11: 1,026,840 km (0.116 R)
• M12: 1,139,038 km (0.086 R)
• M13: 1,266,944 km (0.102 R)
• M14: 1,335,610 km (0.072 R)
• M15: 1,543,401 km (0.113 R)
• M16: 2,104,842 km (0.115 R)
• M17: 2,340,608 km (0.115 R)
• M18: 2,433,060 km (0.025 R)
• M19: 2,497,836 km (0.082 R)
• M20: 2,643,843 km (0.04 R)
• M21: 2,815,133 km (0.083 R)
• M22: 2,898,459 km (0.093 R)
• M23: 3,021,129 km (0.046 R)
• M24: 3,145,594 km (0.112 R)
• M25: 3,216,205 km (0.094 R)
• M26: 3,399,462 km (0.089 R)
• M27: 3,635,527 km (0.094 R)
• M28: 3,767,922 km (0.075 R)
• M29: 3,851,696 km (0.05 R)
• M30: 4,029,269 km (0.095 R)
• M31: 4,114,839 km (0.034 R)
• M32: 4,201,157 km (0.101 R)
• M33: 4,296,600 km (0.1 R)
• M34: 4,384,115 km (0.052 R)
• M35: 4,498,707 km (0.097 R)
• M36: 4,623,322 km (0.062 R)
• M37: 4,903,220 km (0.109 R)
• M38: 5,003,899 km (0.059 R)
• M39: 5,207,352 km (0.058 R)
• M40: 5,441,772 km (0.104 R)
• M41: 5,603,338 km (0.09 R)
• M42: 5,853,316 km (0.113 R)
• M43: 5,970,002 km (0.116 R)
• M44: 6,146,378 km (0.117 R)
• M45: 6,205,619 km (0.088 R)
• M46: 6,274,883 km (0.073 R)
• M47: 6,514,538 km (0.073 R)
• M48: 6,574,826 km (0.09 R)
• M49: 6,767,209 km (0.054 R)
• M50: 6,859,062 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.2

Radius: 13.7

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.2 AU - 1.72 AU

Year: 1157 Days

Day: 14.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (55)

Outer Limit: 16,044,253 km

• M1: 170,691 km (0.102 R)
• M2: 260,450 km (0.109 R)
• M3: 369,656 km (0.035 R)
• M4: 524,191 km (0.095 R)
• M5: 722,707 km (0.091 R)
• M6: 823,387 km (0.087 R)
• M7: 1,040,752 km (0.105 R)
• M8: 1,220,419 km (0.053 R)
• M9: 1,314,516 km (0.043 R)
• M10: 1,494,932 km (0.064 R)
• M11: 1,740,721 km (0.101 R)
• M12: 1,914,853 km (0.081 R)
• M13: 2,138,950 km (0.102 R)
• M14: 2,272,242 km (0.057 R)
• M15: 2,408,376 km (0.117 R)
• M16: 2,509,953 km (0.032 R)
• M17: 2,814,086 km (0.081 R)
• M18: 2,960,841 km (0.108 R)
• M19: 3,406,344 km (0.051 R)
• M20: 3,690,430 km (0.104 R)
• M21: 3,786,771 km (0.115 R)
• M22: 4,026,127 km (0.119 R)
• M23: 4,114,540 km (0.114 R)
• M24: 4,236,911 km (0.114 R)
• M25: 4,428,695 km (0.1 R)
• M26: 4,542,839 km (0.107 R)
• M27: 4,634,991 km (0.066 R)
• M28: 4,762,598 km (0.045 R)
• M29: 4,856,096 km (0.083 R)
• M30: 5,021,402 km (0.083 R)
• M31: 5,152,450 km (0.098 R)
• M32: 5,260,609 km (0.111 R)
• M33: 5,552,923 km (0.092 R)
• M34: 5,663,925 km (0.109 R)
• M35: 6,115,262 km (0.104 R)
• M36: 6,255,585 km (0.114 R)
• M37: 6,448,566 km (0.078 R)
• M38: 6,539,372 km (0.116 R)
• M39: 6,656,656 km (0.096 R)
• M40: 7,106,348 km (0.064 R)
• M41: 7,213,609 km (0.108 R)
• M42: 7,321,320 km (0.048 R)
• M43: 7,456,855 km (0.111 R)
• M44: 8,007,376 km (0.028 R)
• M45: 8,119,125 km (0.101 R)
• M46: 8,301,635 km (0.108 R)
• M47: 8,585,272 km (0.057 R)
• M48: 8,685,353 km (0.103 R)
• M49: 8,785,733 km (0.068 R)
• M50: 9,133,100 km (0.116 R)
• M51: 9,529,235 km (0.105 R)
• M52: 9,707,107 km (0.112 R)
• M53: 9,901,135 km (0.088 R)
• M54: 9,991,043 km (0.094 R)
• M55: 10,081,251 km (0.06 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.9

Radius: 14.9

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.25 AU - 1.77 AU

Year: 1217 Days

Day: 10.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 16,044,253 km

• M1: 217,067 km (0.083 R)
• M2: 314,904 km (0.103 R)
• M3: 439,668 km (0.108 R)
• M4: 562,937 km (0.092 R)
• M5: 689,197 km (0.094 R)
• M6: 782,696 km (0.06 R)
• M7: 942,167 km (0.11 R)
• M8: 1,118,543 km (0.106 R)
• M9: 1,312,422 km (0.104 R)
• M10: 1,433,297 km (0.103 R)
• M11: 1,541,008 km (0.103 R)
• M12: 1,657,544 km (0.119 R)
• M13: 1,850,376 km (0.119 R)
• M14: 2,025,705 km (0.113 R)
• M15: 2,186,971 km (0.076 R)
• M16: 2,488,411 km (0.093 R)
• M17: 2,647,882 km (0.054 R)
• M18: 2,746,617 km (0.112 R)
• M19: 2,853,879 km (0.094 R)
• M20: 3,282,177 km (0.081 R)
• M21: 3,644,354 km (0.085 R)
• M22: 3,810,557 km (0.068 R)
• M23: 3,922,755 km (0.098 R)
• M24: 4,060,535 km (0.111 R)
• M25: 4,158,821 km (0.116 R)
• M26: 4,332,654 km (0.108 R)
• M27: 4,492,125 km (0.118 R)
• M28: 4,653,541 km (0.073 R)
• M29: 5,096,500 km (0.077 R)
• M30: 5,318,803 km (0.073 R)
• M31: 5,480,817 km (0.051 R)
• M32: 5,745,306 km (0.069 R)
• M33: 5,902,384 km (0.052 R)
• M34: 6,154,756 km (0.029 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.7

Radius: 9.6

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 5.15 AU - 5.23 AU

Year: 7756 Days

Day: 12.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 16,044,253 km

• M1: 157,826 km (0.091 R)
• M2: 276,457 km (0.061 R)
• M3: 420,669 km (0.08 R)
• M4: 514,018 km (0.073 R)
• M5: 865,872 km (0.098 R)
• M6: 1,129,015 km (0.12 R)
• M7: 1,376,300 km (0.025 R)
• M8: 2,341,207 km (0.117 R)
• M9: 2,567,847 km (0.086 R)
• M10: 2,854,776 km (0.086 R)
• M11: 3,304,467 km (0.116 R)
• M12: 3,445,089 km (0.057 R)
• M13: 3,998,003 km (0.05 R)
• M14: 4,178,418 km (0.117 R)
• M15: 4,269,523 km (0.074 R)
• M16: 4,392,193 km (0.111 R)
• M17: 4,453,977 km (0.111 R)
• M18: 4,798,950 km (0.117 R)
• M19: 5,103,980 km (0.077 R)
• M20: 5,299,804 km (0.048 R)
• M21: 5,817,412 km (0.082 R)
• M22: 6,703,780 km (0.071 R)
• M23: 7,008,660 km (0.116 R)
• M24: 7,483,633 km (0.115 R)
• M25: 7,669,135 km (0.102 R)
• M26: 7,799,883 km (0.051 R)
• M27: 8,330,357 km (0.095 R)
• M28: 8,483,994 km (0.093 R)
• M29: 9,266,691 km (0.079 R)
• M30: 9,767,544 km (0.091 R)
• M31: 10,628,779 km (0.119 R)
• M32: 10,858,412 km (0.104 R)
• M33: 11,068,597 km (0.109 R)
• M34: 12,009,268 km (0.115 R)
• M35: 13,198,422 km (0.065 R)
• M36: 13,422,669 km (0.117 R)
• M37: 13,761,658 km (0.086 R)
• M38: 14,771,892 km (0.067 R)
• M39: 14,841,605 km (0.112 R)
• M40: 15,074,977 km (0.092 R)
• M41: 15,948,779 km (0.081 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 272 - 10,852 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit