🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.52 AU - 0.58 AU

Year: 268 Days

Day: 36.6 Hours

Environment

Temp: -112 °C

Axial Tilt: 14.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,029,665 km

• M1: 132,095 km (0.118 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.55 AU - 0.77 AU

Year: 352 Days

Day: 44.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 10.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.8

Radius: 9.9

Gravity: 8.21 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.34 AU - 1.52 AU

Year: 1122 Days

Day: 11.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (61)

Outer Limit: 67,029,665 km

• M1: 148,850 km (0.067 R)
• M2: 223,350 km (0.101 R)
• M3: 289,921 km (0.083 R)
• M4: 416,780 km (0.057 R)
• M5: 565,330 km (0.103 R)
• M6: 759,209 km (0.1 R)
• M7: 833,559 km (0.075 R)
• M8: 917,633 km (0.113 R)
• M9: 1,064,538 km (0.109 R)
• M10: 1,398,890 km (0.116 R)
• M11: 1,483,263 km (0.106 R)
• M12: 1,711,250 km (0.069 R)
• M13: 1,811,181 km (0.085 R)
• M14: 2,016,878 km (0.108 R)
• M15: 2,220,631 km (0.08 R)
• M16: 2,340,010 km (0.091 R)
• M17: 2,420,942 km (0.072 R)
• M18: 2,606,294 km (0.071 R)
• M19: 2,669,125 km (0.101 R)
• M20: 2,817,825 km (0.051 R)
• M21: 3,024,121 km (0.051 R)
• M22: 3,101,313 km (0.053 R)
• M23: 3,280,532 km (0.064 R)
• M24: 3,348,599 km (0.071 R)
• M25: 3,440,003 km (0.089 R)
• M26: 3,695,965 km (0.098 R)
• M27: 3,958,210 km (0.031 R)
• M28: 4,067,267 km (0.077 R)
• M29: 4,239,005 km (0.08 R)
• M30: 4,400,571 km (0.088 R)
• M31: 4,551,515 km (0.095 R)
• M32: 4,691,389 km (0.037 R)
• M33: 4,936,431 km (0.077 R)
• M34: 5,172,496 km (0.105 R)
• M35: 5,820,105 km (0.098 R)
• M36: 5,986,009 km (0.035 R)
• M37: 6,251,994 km (0.114 R)
• M38: 6,607,738 km (0.089 R)
• M39: 6,737,589 km (0.07 R)
• M40: 6,882,699 km (0.094 R)
• M41: 6,984,874 km (0.09 R)
• M42: 7,264,921 km (0.104 R)
• M43: 7,384,001 km (0.057 R)
• M44: 7,973,567 km (0.076 R)
• M45: 8,065,569 km (0.12 R)
• M46: 8,359,529 km (0.108 R)
• M47: 8,562,683 km (0.113 R)
• M48: 8,751,475 km (0.068 R)
• M49: 8,941,914 km (0.105 R)
• M50: 9,117,541 km (0.116 R)
• M51: 9,342,836 km (0.1 R)
• M52: 9,439,925 km (0.073 R)
• M53: 9,537,313 km (0.077 R)
• M54: 9,930,456 km (0.109 R)
• M55: 10,079,306 km (0.106 R)
• M56: 10,162,333 km (0.092 R)
• M57: 10,429,365 km (0.105 R)
• M58: 10,563,854 km (0.088 R)
• M59: 11,141,601 km (0.095 R)
• M60: 11,573,041 km (0.119 R)
• M61: 11,677,311 km (0.031 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 376.2

Radius: 13.9

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.74 AU - 2.8 AU

Year: 2244 Days

Day: 7.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (63)

Outer Limit: 67,029,665 km

• M1: 216,468 km (0.094 R)
• M2: 333,005 km (0.105 R)
• M3: 432,487 km (0.041 R)
• M4: 612,154 km (0.094 R)
• M5: 867,518 km (0.061 R)
• M6: 1,098,048 km (0.041 R)
• M7: 1,239,269 km (0.119 R)
• M8: 1,415,495 km (0.085 R)
• M9: 1,541,157 km (0.029 R)
• M10: 1,691,054 km (0.116 R)
• M11: 1,835,566 km (0.098 R)
• M12: 1,930,860 km (0.105 R)
• M13: 2,038,720 km (0.095 R)
• M14: 2,271,943 km (0.057 R)
• M15: 2,432,461 km (0.111 R)
• M16: 2,585,051 km (0.066 R)
• M17: 2,680,644 km (0.096 R)
• M18: 2,887,688 km (0.073 R)
• M19: 3,253,305 km (0.116 R)
• M20: 3,369,842 km (0.117 R)
• M21: 3,474,560 km (0.105 R)
• M22: 3,620,568 km (0.108 R)
• M23: 3,714,515 km (0.11 R)
• M24: 4,126,657 km (0.093 R)
• M25: 4,409,696 km (0.076 R)
• M26: 5,114,901 km (0.077 R)
• M27: 5,205,707 km (0.113 R)
• M28: 5,496,375 km (0.066 R)
• M29: 5,589,276 km (0.089 R)
• M30: 5,823,995 km (0.062 R)
• M31: 6,206,367 km (0.098 R)
• M32: 6,303,157 km (0.119 R)
• M33: 6,662,790 km (0.051 R)
• M34: 7,231,860 km (0.081 R)
• M35: 7,591,194 km (0.093 R)
• M36: 8,096,985 km (0.09 R)
• M37: 8,274,109 km (0.101 R)
• M38: 8,524,087 km (0.109 R)
• M39: 8,649,898 km (0.072 R)
• M40: 8,794,709 km (0.082 R)
• M41: 8,940,118 km (0.075 R)
• M42: 9,104,826 km (0.055 R)
• M43: 9,196,828 km (0.085 R)
• M44: 9,344,481 km (0.048 R)
• M45: 9,437,232 km (0.096 R)
• M46: 9,567,532 km (0.115 R)
• M47: 9,905,623 km (0.067 R)
• M48: 10,095,014 km (0.056 R)
• M49: 10,209,307 km (0.061 R)
• M50: 10,516,132 km (0.077 R)
• M51: 10,631,921 km (0.032 R)
• M52: 10,728,860 km (0.06 R)
• M53: 10,982,129 km (0.1 R)
• M54: 11,138,908 km (0.11 R)
• M55: 11,316,331 km (0.047 R)
• M56: 11,994,757 km (0.115 R)
• M57: 12,115,932 km (0.074 R)
• M58: 12,502,193 km (0.094 R)
• M59: 12,645,508 km (0.111 R)
• M60: 12,748,132 km (0.098 R)
• M61: 12,954,428 km (0.097 R)
• M62: 13,474,879 km (0.089 R)
• M63: 13,579,896 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569

Radius: 13.8

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 2.85 AU - 3.61 AU

Year: 3808 Days

Day: 5.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 67,029,665 km

• M1: 345,721 km (0.091 R)
• M2: 543,190 km (0.112 R)
• M3: 673,789 km (0.103 R)
• M4: 982,708 km (0.025 R)
• M5: 1,148,612 km (0.106 R)
• M6: 1,311,525 km (0.116 R)
• M7: 1,564,345 km (0.097 R)
• M8: 1,906,924 km (0.112 R)
• M9: 2,011,343 km (0.117 R)
• M10: 2,226,465 km (0.052 R)
• M11: 2,337,018 km (0.038 R)
• M12: 2,547,203 km (0.06 R)
• M13: 2,646,386 km (0.051 R)
• M14: 2,747,066 km (0.094 R)
• M15: 2,883,200 km (0.083 R)
• M16: 3,341,418 km (0.062 R)
• M17: 3,505,377 km (0.065 R)
• M18: 3,597,829 km (0.037 R)
• M19: 3,766,126 km (0.117 R)
• M20: 3,917,968 km (0.114 R)
• M21: 4,091,352 km (0.089 R)
• M22: 4,287,026 km (0.113 R)
• M23: 4,385,910 km (0.055 R)
• M24: 4,830,814 km (0.096 R)
• M25: 5,079,596 km (0.072 R)
• M26: 5,226,800 km (0.107 R)
• M27: 5,396,594 km (0.104 R)
• M28: 5,720,174 km (0.104 R)
• M29: 6,005,906 km (0.117 R)
• M30: 6,318,715 km (0.081 R)
• M31: 6,409,222 km (0.071 R)
• M32: 6,937,452 km (0.057 R)
• M33: 7,054,138 km (0.087 R)
• M34: 7,195,059 km (0.069 R)
• M35: 7,313,242 km (0.062 R)
• M36: 7,623,507 km (0.086 R)
• M37: 8,035,949 km (0.094 R)
• M38: 8,430,738 km (0.086 R)
• M39: 8,806,677 km (0.054 R)
• M40: 9,213,733 km (0.119 R)
• M41: 9,368,118 km (0.088 R)
• M42: 9,993,736 km (0.102 R)
• M43: 10,099,352 km (0.07 R)
• M44: 10,579,262 km (0.115 R)
• M45: 10,876,214 km (0.111 R)
• M46: 11,094,028 km (0.076 R)
• M47: 11,340,715 km (0.053 R)
• M48: 11,561,522 km (0.103 R)
• M49: 11,839,475 km (0.103 R)
• M50: 12,035,448 km (0.102 R)
• M51: 12,176,070 km (0.026 R)
• M52: 13,466,202 km (0.092 R)
• M53: 13,817,607 km (0.109 R)
• M54: 14,053,523 km (0.051 R)
• M55: 14,380,095 km (0.12 R)
• M56: 15,192,561 km (0.105 R)
• M57: 15,680,998 km (0.033 R)
• M58: 16,267,721 km (0.116 R)
• M59: 16,423,303 km (0.117 R)
• M60: 16,579,483 km (0.067 R)
• M61: 16,893,190 km (0.06 R)
• M62: 17,050,717 km (0.077 R)
• M63: 17,177,276 km (0.104 R)
• M64: 18,103,287 km (0.103 R)
• M65: 18,232,240 km (0.052 R)
• M66: 18,621,045 km (0.117 R)
• M67: 18,816,570 km (0.094 R)
• M68: 19,308,148 km (0.094 R)
• M69: 19,572,189 km (0.105 R)
• M70: 19,837,276 km (0.119 R)
• M71: 20,808,465 km (0.113 R)
• M72: 21,795,063 km (0.075 R)
• M73: 22,001,209 km (0.073 R)
• M74: 22,242,361 km (0.062 R)
• M75: 22,831,777 km (0.119 R)
• M76: 23,286,105 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.2

Radius: 10.8

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 3.47 AU - 4.79 AU

Year: 5506 Days

Day: 6.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 67,029,665 km

• M1: 536,308 km (0.098 R)
• M2: 623,823 km (0.109 R)
• M3: 828,473 km (0.067 R)
• M4: 982,409 km (0.084 R)
• M5: 1,476,381 km (0.112 R)
• M6: 1,578,706 km (0.105 R)
• M7: 1,763,759 km (0.092 R)
• M8: 2,002,966 km (0.103 R)
• M9: 2,311,885 km (0.057 R)
• M10: 2,512,795 km (0.046 R)
• M11: 2,656,858 km (0.092 R)
• M12: 2,751,105 km (0.092 R)
• M13: 3,161,003 km (0.096 R)
• M14: 3,544,123 km (0.069 R)
• M15: 3,978,107 km (0.119 R)
• M16: 4,074,298 km (0.106 R)
• M17: 4,591,458 km (0.038 R)
• M18: 4,679,721 km (0.105 R)
• M19: 4,870,907 km (0.118 R)
• M20: 5,155,741 km (0.118 R)
• M21: 5,905,526 km (0.098 R)
• M22: 6,098,357 km (0.082 R)
• M23: 6,789,649 km (0.109 R)
• M24: 6,876,117 km (0.112 R)
• M25: 7,195,957 km (0.1 R)
• M26: 7,595,084 km (0.112 R)
• M27: 7,684,843 km (0.08 R)
• M28: 7,925,845 km (0.088 R)
• M29: 8,016,800 km (0.066 R)
• M30: 8,138,723 km (0.058 R)
• M31: 8,523,638 km (0.106 R)
• M32: 9,009,233 km (0.068 R)
• M33: 9,343,285 km (0.086 R)
• M34: 9,471,640 km (0.104 R)
• M35: 10,056,567 km (0.089 R)
• M36: 10,469,607 km (0.033 R)
• M37: 10,703,279 km (0.116 R)
• M38: 10,888,182 km (0.034 R)
• M39: 11,108,091 km (0.032 R)
• M40: 11,295,238 km (0.064 R)
• M41: 11,380,658 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.3

Radius: 9.4

Gravity: 10.22 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 4.47 AU - 5.53 AU

Year: 7334 Days

Day: 9.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (83)

Outer Limit: 67,029,665 km

• M1: 172,935 km (0.081 R)
• M2: 275,410 km (0.106 R)
• M3: 457,919 km (0.057 R)
• M4: 523,892 km (0.109 R)
• M5: 637,137 km (0.086 R)
• M6: 697,126 km (0.044 R)
• M7: 1,136,345 km (0.12 R)
• M8: 1,844,991 km (0.043 R)
• M9: 2,138,202 km (0.048 R)
• M10: 2,398,054 km (0.027 R)
• M11: 2,668,228 km (0.115 R)
• M12: 2,743,625 km (0.066 R)
• M13: 2,819,770 km (0.054 R)
• M14: 3,291,602 km (0.109 R)
• M15: 3,454,364 km (0.068 R)
• M16: 3,844,516 km (0.079 R)
• M17: 3,958,659 km (0.108 R)
• M18: 4,248,879 km (0.064 R)
• M19: 4,486,141 km (0.112 R)
• M20: 5,066,880 km (0.117 R)
• M21: 5,286,789 km (0.09 R)
• M22: 5,834,167 km (0.059 R)
• M23: 6,264,860 km (0.06 R)
• M24: 6,878,360 km (0.035 R)
• M25: 7,157,061 km (0.059 R)
• M26: 7,510,860 km (0.107 R)
• M27: 7,653,876 km (0.106 R)
• M28: 7,725,832 km (0.071 R)
• M29: 8,125,259 km (0.11 R)
• M30: 8,309,115 km (0.056 R)
• M31: 8,383,016 km (0.098 R)
• M32: 8,643,466 km (0.107 R)
• M33: 8,793,512 km (0.114 R)
• M34: 9,287,036 km (0.103 R)
• M35: 9,402,226 km (0.099 R)
• M36: 9,517,865 km (0.119 R)
• M37: 9,634,103 km (0.115 R)
• M38: 9,946,014 km (0.092 R)
• M39: 11,227,171 km (0.105 R)
• M40: 11,431,970 km (0.119 R)
• M41: 12,095,885 km (0.082 R)
• M42: 12,221,697 km (0.092 R)
• M43: 14,694,849 km (0.071 R)
• M44: 15,189,569 km (0.106 R)
• M45: 15,918,709 km (0.076 R)
• M46: 16,333,993 km (0.111 R)
• M47: 17,222,305 km (0.099 R)
• M48: 17,553,515 km (0.117 R)
• M49: 18,078,304 km (0.103 R)
• M50: 18,802,059 km (0.092 R)
• M51: 18,996,686 km (0.063 R)
• M52: 19,192,060 km (0.071 R)
• M53: 19,486,319 km (0.093 R)
• M54: 19,831,442 km (0.107 R)
• M55: 20,427,739 km (0.082 R)
• M56: 21,638,135 km (0.113 R)
• M57: 22,200,773 km (0.11 R)
• M58: 23,706,625 km (0.057 R)
• M59: 24,339,424 km (0.119 R)
• M60: 24,551,703 km (0.107 R)
• M61: 24,871,095 km (0.093 R)
• M62: 24,977,908 km (0.08 R)
• M63: 26,434,243 km (0.109 R)
• M64: 27,090,230 km (0.104 R)
• M65: 28,418,509 km (0.09 R)
• M66: 29,315,797 km (0.093 R)
• M67: 29,428,594 km (0.07 R)
• M68: 30,051,669 km (0.109 R)
• M69: 30,736,229 km (0.069 R)
• M70: 31,426,025 km (0.066 R)
• M71: 31,599,259 km (0.086 R)
• M72: 32,179,100 km (0.111 R)
• M73: 33,055,295 km (0.116 R)
• M74: 36,516,691 km (0.115 R)
• M75: 37,736,661 km (0.116 R)
• M76: 37,920,816 km (0.114 R)
• M77: 38,536,860 km (0.107 R)
• M78: 38,722,362 km (0.099 R)
• M79: 39,094,112 km (0.113 R)
• M80: 39,156,195 km (0.099 R)
• M81: 40,656,064 km (0.11 R)
• M82: 41,412,879 km (0.094 R)
• M83: 41,983,745 km (0.067 R)

Asteroid Belt

Center: 7.59 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 10.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 412.6

Radius: 3.1

Gravity: 42.93 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 9.66 AU - 10.7 AU

Year: 21307 Days

Day: 19.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 67,029,665 km

• M1: 174,132 km (0.064 R)
• M2: 214,075 km (0.101 R)
• M3: 242,349 km (0.112 R)
• M4: 832,961 km (0.104 R)
• M5: 1,148,762 km (0.104 R)
• M6: 1,200,373 km (0.11 R)
• M7: 1,332,767 km (0.103 R)
• M8: 1,907,971 km (0.108 R)
• M9: 1,969,157 km (0.119 R)
• M10: 2,416,155 km (0.083 R)
• M11: 3,142,453 km (0.092 R)
• M12: 3,398,415 km (0.106 R)
• M13: 3,510,164 km (0.089 R)
• M14: 3,547,714 km (0.105 R)
• M15: 4,205,944 km (0.098 R)
• M16: 4,651,596 km (0.12 R)
• M17: 5,027,087 km (0.119 R)
• M18: 5,325,983 km (0.072 R)
• M19: 5,412,451 km (0.067 R)
• M20: 5,718,678 km (0.104 R)
• M21: 5,762,809 km (0.116 R)
• M22: 5,807,090 km (0.104 R)
• M23: 6,347,737 km (0.079 R)
• M24: 7,045,761 km (0.073 R)
• M25: 8,614,145 km (0.118 R)
• M26: 9,964,116 km (0.113 R)
• M27: 10,717,790 km (0.095 R)
• M28: 10,991,255 km (0.056 R)
• M29: 11,211,912 km (0.083 R)
• M30: 11,322,614 km (0.088 R)
• M31: 11,713,364 km (0.064 R)
• M32: 12,738,109 km (0.036 R)
• M33: 12,795,854 km (0.079 R)
• M34: 13,969,449 km (0.093 R)
• M35: 14,448,312 km (0.064 R)
• M36: 15,360,859 km (0.109 R)
• M37: 15,422,344 km (0.091 R)
• M38: 15,483,978 km (0.097 R)
• M39: 16,229,275 km (0.068 R)
• M40: 17,177,127 km (0.113 R)
• M41: 17,754,425 km (0.083 R)
• M42: 18,272,931 km (0.101 R)
• M43: 18,665,027 km (0.085 R)
• M44: 19,258,482 km (0.102 R)
• M45: 19,391,175 km (0.085 R)
• M46: 22,316,711 km (0.069 R)
• M47: 26,033,171 km (0.061 R)
• M48: 27,961,936 km (0.104 R)
• M49: 28,037,035 km (0.071 R)
• M50: 29,095,439 km (0.045 R)
• M51: 30,012,923 km (0.111 R)
• M52: 31,563,206 km (0.12 R)
• M53: 32,505,822 km (0.1 R)
• M54: 32,742,785 km (0.066 R)
• M55: 34,498,915 km (0.12 R)
• M56: 36,531,202 km (0.104 R)
• M57: 36,777,739 km (0.115 R)
• M58: 36,860,018 km (0.097 R)
• M59: 37,686,247 km (0.052 R)
• M60: 39,104,734 km (0.029 R)
• M61: 40,455,603 km (0.032 R)
• M62: 41,307,712 km (0.105 R)
• M63: 41,993,618 km (0.109 R)
• M64: 43,637,549 km (0.118 R)
• M65: 44,774,493 km (0.066 R)
• M66: 45,126,347 km (0.106 R)
• M67: 46,542,590 km (0.104 R)
• M68: 47,077,552 km (0.118 R)
• M69: 47,614,459 km (0.106 R)
• M70: 48,513,841 km (0.088 R)
• M71: 48,784,614 km (0.115 R)
• M72: 48,965,477 km (0.078 R)
• M73: 49,146,640 km (0.113 R)
• M74: 50,237,957 km (0.034 R)
• M75: 51,521,058 km (0.113 R)
• M76: 51,889,667 km (0.066 R)
• M77: 53,000,730 km (0.07 R)
• M78: 53,745,877 km (0.107 R)
• M79: 54,869,956 km (0.08 R)
• M80: 59,153,691 km (0.059 R)
• M81: 61,286,807 km (0.119 R)
• M82: 61,579,570 km (0.072 R)
• M83: 63,642,375 km (0.066 R)
• M84: 64,533,230 km (0.095 R)
• M85: 67,029,720 km (0.092 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 425 - 18,091 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit