🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177

Radius: 10.2

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.73 AU - 0.83 AU

Year: 476 Days

Day: 9.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 41,569,915 km

• M1: 127,009 km (0.116 R)
• M2: 219,610 km (0.112 R)
• M3: 288,125 km (0.094 R)
• M4: 352,303 km (0.095 R)
• M5: 423,212 km (0.118 R)
• M6: 543,788 km (0.118 R)
• M7: 629,508 km (0.086 R)
• M8: 799,900 km (0.118 R)
• M9: 899,532 km (0.045 R)
• M10: 982,559 km (0.116 R)
• M11: 1,075,609 km (0.11 R)
• M12: 1,309,879 km (0.11 R)
• M13: 1,405,173 km (0.077 R)
• M14: 1,515,277 km (0.047 R)
• M15: 1,590,225 km (0.104 R)
• M16: 1,670,859 km (0.114 R)
• M17: 1,739,823 km (0.049 R)
• M18: 1,818,661 km (0.105 R)
• M19: 1,889,870 km (0.041 R)
• M20: 1,989,203 km (0.108 R)
• M21: 2,169,618 km (0.025 R)
• M22: 2,264,313 km (0.095 R)
• M23: 2,331,483 km (0.073 R)
• M24: 2,414,061 km (0.025 R)
• M25: 2,492,450 km (0.054 R)
• M26: 2,611,979 km (0.109 R)
• M27: 2,810,196 km (0.053 R)
• M28: 2,945,133 km (0.065 R)
• M29: 3,029,207 km (0.071 R)
• M30: 3,103,557 km (0.078 R)
• M31: 3,189,127 km (0.083 R)
• M32: 3,319,128 km (0.056 R)
• M33: 3,434,318 km (0.104 R)
• M34: 3,595,734 km (0.053 R)
• M35: 3,714,066 km (0.09 R)
• M36: 3,902,859 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.5

Radius: 13.4

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.1 AU - 1.28 AU

Year: 896 Days

Day: 12.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 78.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (49)

Outer Limit: 41,569,915 km

• M1: 167,550 km (0.113 R)
• M2: 278,551 km (0.044 R)
• M3: 361,877 km (0.082 R)
• M4: 584,928 km (0.068 R)
• M5: 909,256 km (0.105 R)
• M6: 1,110,615 km (0.089 R)
• M7: 1,472,193 km (0.07 R)
• M8: 1,622,688 km (0.09 R)
• M9: 1,736,831 km (0.073 R)
• M10: 2,123,093 km (0.096 R)
• M11: 2,221,678 km (0.09 R)
• M12: 2,377,260 km (0.104 R)
• M13: 2,470,609 km (0.06 R)
• M14: 2,593,728 km (0.115 R)
• M15: 3,107,148 km (0.103 R)
• M16: 3,250,911 km (0.101 R)
• M17: 3,449,727 km (0.115 R)
• M18: 3,566,563 km (0.109 R)
• M19: 3,804,573 km (0.053 R)
• M20: 3,936,518 km (0.064 R)
• M21: 4,047,819 km (0.053 R)
• M22: 4,319,040 km (0.079 R)
• M23: 4,468,488 km (0.058 R)
• M24: 4,643,069 km (0.068 R)
• M25: 4,939,273 km (0.096 R)
• M26: 5,059,400 km (0.073 R)
• M27: 5,217,226 km (0.072 R)
• M28: 5,675,145 km (0.08 R)
• M29: 5,902,833 km (0.081 R)
• M30: 6,069,036 km (0.09 R)
• M31: 6,236,885 km (0.093 R)
• M32: 6,354,020 km (0.047 R)
• M33: 6,643,342 km (0.113 R)
• M34: 6,749,706 km (0.094 R)
• M35: 6,856,519 km (0.101 R)
• M36: 7,194,311 km (0.12 R)
• M37: 7,399,559 km (0.097 R)
• M38: 7,732,116 km (0.036 R)
• M39: 7,900,264 km (0.064 R)
• M40: 8,154,730 km (0.063 R)
• M41: 8,340,231 km (0.073 R)
• M42: 8,715,422 km (0.114 R)
• M43: 8,963,755 km (0.063 R)
• M44: 9,140,430 km (0.079 R)
• M45: 9,392,802 km (0.085 R)
• M46: 9,632,457 km (0.047 R)
• M47: 9,722,814 km (0.089 R)
• M48: 9,980,422 km (0.094 R)
• M49: 10,133,161 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.1

Radius: 9.2

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.1 AU - 1.46 AU

Year: 1000 Days

Day: 13.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 41,569,915 km

• M1: 145,110 km (0.072 R)
• M2: 209,736 km (0.118 R)
• M3: 274,213 km (0.083 R)
• M4: 383,868 km (0.069 R)
• M5: 594,951 km (0.074 R)
• M6: 720,015 km (0.098 R)
• M7: 882,179 km (0.056 R)
• M8: 962,064 km (0.115 R)
• M9: 1,020,856 km (0.083 R)
• M10: 1,080,845 km (0.112 R)
• M11: 1,204,712 km (0.104 R)
• M12: 1,359,695 km (0.075 R)
• M13: 1,576,762 km (0.085 R)
• M14: 1,725,462 km (0.115 R)
• M15: 1,805,198 km (0.03 R)
• M16: 1,976,038 km (0.109 R)
• M17: 2,349,734 km (0.07 R)
• M18: 2,438,595 km (0.074 R)
• M19: 2,553,336 km (0.051 R)
• M20: 2,822,313 km (0.061 R)
• M21: 2,890,979 km (0.049 R)
• M22: 3,100,416 km (0.096 R)
• M23: 3,360,267 km (0.037 R)
• M24: 3,562,075 km (0.117 R)
• M25: 3,683,399 km (0.105 R)
• M26: 3,862,916 km (0.066 R)
• M27: 4,094,045 km (0.113 R)
• M28: 4,162,262 km (0.071 R)
• M29: 4,329,512 km (0.094 R)
• M30: 4,630,353 km (0.078 R)
• M31: 4,927,604 km (0.115 R)
• M32: 5,062,841 km (0.111 R)
• M33: 5,157,237 km (0.108 R)
• M34: 5,337,203 km (0.052 R)
• M35: 5,401,231 km (0.104 R)
• M36: 5,812,476 km (0.09 R)
• M37: 5,955,491 km (0.037 R)
• M38: 6,133,214 km (0.062 R)
• M39: 6,289,992 km (0.104 R)
• M40: 6,391,569 km (0.082 R)
• M41: 6,653,664 km (0.117 R)
• M42: 6,722,629 km (0.108 R)
• M43: 7,461,044 km (0.091 R)
• M44: 7,664,797 km (0.116 R)
• M45: 7,797,490 km (0.116 R)
• M46: 8,089,954 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547

Radius: 8.1

Gravity: 8.34 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.5 AU - 3.14 AU

Year: 3269 Days

Day: 7.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 41,569,915 km

• M1: 139,276 km (0.118 R)
• M2: 287,976 km (0.082 R)
• M3: 523,443 km (0.081 R)
• M4: 735,124 km (0.116 R)
• M5: 846,126 km (0.107 R)
• M6: 1,017,714 km (0.069 R)
• M7: 1,177,335 km (0.087 R)
• M8: 1,236,426 km (0.072 R)
• M9: 1,333,067 km (0.111 R)
• M10: 1,521,111 km (0.112 R)
• M11: 1,625,082 km (0.048 R)
• M12: 1,704,518 km (0.099 R)
• M13: 1,785,451 km (0.059 R)
• M14: 1,909,168 km (0.113 R)
• M15: 2,121,747 km (0.075 R)
• M16: 2,554,533 km (0.066 R)
• M17: 2,804,960 km (0.114 R)
• M18: 2,901,002 km (0.095 R)
• M19: 3,162,499 km (0.039 R)
• M20: 3,414,422 km (0.102 R)
• M21: 3,465,734 km (0.117 R)
• M22: 3,551,603 km (0.119 R)
• M23: 3,620,867 km (0.113 R)
• M24: 3,673,077 km (0.064 R)
• M25: 3,813,549 km (0.086 R)
• M26: 3,973,918 km (0.08 R)
• M27: 4,319,489 km (0.094 R)
• M28: 4,542,839 km (0.088 R)
• M29: 4,962,012 km (0.116 R)
• M30: 5,137,191 km (0.052 R)
• M31: 5,715,237 km (0.1 R)
• M32: 6,419,245 km (0.074 R)
• M33: 6,610,132 km (0.12 R)
• M34: 7,106,647 km (0.118 R)
• M35: 7,238,143 km (0.077 R)
• M36: 7,304,116 km (0.055 R)
• M37: 7,503,530 km (0.087 R)
• M38: 7,615,130 km (0.092 R)
• M39: 7,794,647 km (0.081 R)
• M40: 8,158,170 km (0.036 R)
• M41: 8,434,328 km (0.091 R)
• M42: 8,596,941 km (0.106 R)
• M43: 8,854,548 km (0.114 R)
• M44: 9,690,950 km (0.1 R)
• M45: 9,763,804 km (0.085 R)
• M46: 9,861,192 km (0.119 R)
• M47: 10,007,948 km (0.059 R)
• M48: 10,303,703 km (0.104 R)
• M49: 10,602,300 km (0.093 R)
• M50: 11,030,300 km (0.099 R)
• M51: 11,310,197 km (0.044 R)
• M52: 11,592,339 km (0.106 R)
• M53: 11,773,203 km (0.119 R)
• M54: 12,190,132 km (0.065 R)
• M55: 12,268,821 km (0.089 R)
• M56: 12,824,427 km (0.108 R)
• M57: 12,958,018 km (0.109 R)
• M58: 13,523,797 km (0.089 R)
• M59: 13,714,086 km (0.071 R)
• M60: 13,878,045 km (0.025 R)
• M61: 13,987,700 km (0.08 R)
• M62: 14,125,181 km (0.111 R)
• M63: 14,235,434 km (0.055 R)
• M64: 14,401,338 km (0.085 R)
• M65: 14,847,140 km (0.112 R)
• M66: 15,353,977 km (0.109 R)
• M67: 15,637,914 km (0.096 R)
• M68: 15,866,500 km (0.108 R)
• M69: 18,002,009 km (0.119 R)
• M70: 18,875,063 km (0.087 R)
• M71: 19,118,458 km (0.059 R)
• M72: 19,638,909 km (0.116 R)
• M73: 20,133,031 km (0.115 R)
• M74: 20,226,081 km (0.051 R)
• M75: 20,506,278 km (0.056 R)
• M76: 21,070,411 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 946

Radius: 8.1

Gravity: 14.42 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.87 AU - 2.99 AU

Year: 3462 Days

Day: 13.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (83)

Outer Limit: 41,569,915 km

• M1: 153,787 km (0.119 R)
• M2: 204,351 km (0.097 R)
• M3: 650,003 km (0.114 R)
• M4: 929,751 km (0.073 R)
• M5: 1,136,495 km (0.111 R)
• M6: 1,190,500 km (0.07 R)
• M7: 1,401,134 km (0.037 R)
• M8: 1,608,626 km (0.074 R)
• M9: 1,669,662 km (0.06 R)
• M10: 1,922,183 km (0.045 R)
• M11: 2,020,020 km (0.078 R)
• M12: 2,153,162 km (0.032 R)
• M13: 2,237,835 km (0.03 R)
• M14: 2,534,038 km (0.088 R)
• M15: 2,750,806 km (0.097 R)
• M16: 2,973,706 km (0.079 R)
• M17: 3,758,347 km (0.076 R)
• M18: 3,860,822 km (0.042 R)
• M19: 4,301,388 km (0.112 R)
• M20: 4,473,276 km (0.081 R)
• M21: 4,560,192 km (0.062 R)
• M22: 5,003,002 km (0.093 R)
• M23: 5,252,381 km (0.099 R)
• M24: 5,482,762 km (0.047 R)
• M25: 5,575,812 km (0.073 R)
• M26: 5,692,947 km (0.074 R)
• M27: 6,559,717 km (0.107 R)
• M28: 6,983,378 km (0.072 R)
• M29: 7,262,229 km (0.08 R)
• M30: 7,467,327 km (0.041 R)
• M31: 7,596,430 km (0.109 R)
• M32: 7,700,251 km (0.058 R)
• M33: 7,752,461 km (0.036 R)
• M34: 7,962,047 km (0.086 R)
• M35: 8,014,706 km (0.086 R)
• M36: 8,386,905 km (0.094 R)
• M37: 8,656,182 km (0.11 R)
• M38: 8,764,790 km (0.071 R)
• M39: 9,481,214 km (0.054 R)
• M40: 9,705,311 km (0.047 R)
• M41: 9,846,382 km (0.079 R)
• M42: 10,073,472 km (0.089 R)
• M43: 10,244,911 km (0.107 R)
• M44: 10,359,802 km (0.095 R)
• M45: 10,474,993 km (0.088 R)
• M46: 10,532,887 km (0.078 R)
• M47: 10,881,899 km (0.102 R)
• M48: 11,116,618 km (0.077 R)
• M49: 12,714,024 km (0.072 R)
• M50: 12,775,658 km (0.107 R)
• M51: 12,961,309 km (0.076 R)
• M52: 13,871,163 km (0.089 R)
• M53: 14,062,050 km (0.081 R)
• M54: 14,317,713 km (0.079 R)
• M55: 14,575,021 km (0.096 R)
• M56: 14,704,274 km (0.114 R)
• M57: 15,094,276 km (0.092 R)
• M58: 15,487,718 km (0.056 R)
• M59: 15,619,663 km (0.11 R)
• M60: 15,818,180 km (0.077 R)
• M61: 16,084,165 km (0.065 R)
• M62: 16,452,325 km (0.083 R)
• M63: 17,333,606 km (0.109 R)
• M64: 17,642,376 km (0.108 R)
• M65: 18,022,055 km (0.057 R)
• M66: 18,614,164 km (0.108 R)
• M67: 19,532,096 km (0.094 R)
• M68: 19,996,598 km (0.073 R)
• M69: 20,068,255 km (0.116 R)
• M70: 20,392,434 km (0.034 R)
• M71: 20,863,667 km (0.06 R)
• M72: 21,338,341 km (0.078 R)
• M73: 21,853,706 km (0.043 R)
• M74: 23,046,749 km (0.105 R)
• M75: 23,235,092 km (0.099 R)
• M76: 23,537,579 km (0.033 R)
• M77: 23,841,263 km (0.099 R)
• M78: 24,031,701 km (0.109 R)
• M79: 24,108,146 km (0.088 R)
• M80: 24,606,157 km (0.112 R)
• M81: 24,721,647 km (0.096 R)
• M82: 25,223,996 km (0.113 R)
• M83: 26,120,985 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.7

Radius: 10

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.96 AU - 3 AU

Year: 3551 Days

Day: 12.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (49)

Outer Limit: 41,569,915 km

• M1: 133,441 km (0.055 R)
• M2: 246,687 km (0.1 R)
• M3: 508,633 km (0.084 R)
• M4: 593,904 km (0.057 R)
• M5: 674,686 km (0.117 R)
• M6: 790,924 km (0.101 R)
• M7: 881,281 km (0.116 R)
• M8: 1,032,674 km (0.104 R)
• M9: 1,096,852 km (0.079 R)
• M10: 1,186,760 km (0.051 R)
• M11: 1,336,059 km (0.118 R)
• M12: 1,406,669 km (0.072 R)
• M13: 1,485,058 km (0.072 R)
• M14: 1,585,438 km (0.077 R)
• M15: 1,715,738 km (0.053 R)
• M16: 1,821,354 km (0.046 R)
• M17: 1,885,681 km (0.088 R)
• M18: 1,972,747 km (0.074 R)
• M19: 2,068,639 km (0.116 R)
• M20: 2,242,322 km (0.1 R)
• M21: 2,311,586 km (0.119 R)
• M22: 2,412,864 km (0.076 R)
• M23: 2,483,923 km (0.104 R)
• M24: 2,693,360 km (0.095 R)
• M25: 2,775,340 km (0.056 R)
• M26: 3,035,191 km (0.098 R)
• M27: 3,137,965 km (0.037 R)
• M28: 3,382,258 km (0.12 R)
• M29: 3,824,619 km (0.085 R)
• M30: 3,935,770 km (0.083 R)
• M31: 4,199,511 km (0.107 R)
• M32: 4,304,679 km (0.078 R)
• M33: 4,655,037 km (0.068 R)
• M34: 4,793,864 km (0.06 R)
• M35: 5,208,250 km (0.053 R)
• M36: 5,414,695 km (0.081 R)
• M37: 5,550,231 km (0.075 R)
• M38: 5,686,963 km (0.041 R)
• M39: 5,856,906 km (0.103 R)
• M40: 5,996,032 km (0.116 R)
• M41: 6,277,875 km (0.094 R)
• M42: 6,365,539 km (0.118 R)
• M43: 6,552,985 km (0.032 R)
• M44: 6,686,426 km (0.113 R)
• M45: 6,764,666 km (0.104 R)
• M46: 7,046,808 km (0.027 R)
• M47: 7,195,059 km (0.102 R)
• M48: 7,471,366 km (0.031 R)
• M49: 7,692,622 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.3

Radius: 14.1

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 4.13 AU - 5.91 AU

Year: 7764 Days

Day: 5.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (84)

Outer Limit: 41,569,915 km

• M1: 229,782 km (0.092 R)
• M2: 338,989 km (0.085 R)
• M3: 434,881 km (0.115 R)
• M4: 942,018 km (0.106 R)
• M5: 1,129,614 km (0.08 R)
• M6: 1,237,623 km (0.098 R)
• M7: 1,665,024 km (0.088 R)
• M8: 1,896,153 km (0.119 R)
• M9: 2,071,033 km (0.081 R)
• M10: 2,508,307 km (0.103 R)
• M11: 3,231,763 km (0.086 R)
• M12: 3,362,960 km (0.092 R)
• M13: 3,603,663 km (0.075 R)
• M14: 3,905,552 km (0.074 R)
• M15: 4,215,967 km (0.103 R)
• M16: 4,446,797 km (0.098 R)
• M17: 4,652,344 km (0.1 R)
• M18: 5,256,869 km (0.054 R)
• M19: 5,443,119 km (0.061 R)
• M20: 5,568,482 km (0.104 R)
• M21: 5,694,892 km (0.073 R)
• M22: 5,918,391 km (0.078 R)
• M23: 6,112,419 km (0.057 R)
• M24: 6,473,399 km (0.12 R)
• M25: 6,909,327 km (0.085 R)
• M26: 7,389,387 km (0.119 R)
• M27: 7,528,513 km (0.051 R)
• M28: 7,844,912 km (0.04 R)
• M29: 8,636,584 km (0.112 R)
• M30: 8,746,688 km (0.086 R)
• M31: 8,930,993 km (0.115 R)
• M32: 9,079,394 km (0.092 R)
• M33: 9,191,144 km (0.048 R)
• M34: 9,795,519 km (0.12 R)
• M35: 9,910,261 km (0.072 R)
• M36: 10,063,898 km (0.08 R)
• M37: 10,296,073 km (0.105 R)
• M38: 10,726,018 km (0.094 R)
• M39: 11,725,481 km (0.096 R)
• M40: 12,215,713 km (0.06 R)
• M41: 12,921,815 km (0.078 R)
• M42: 13,984,259 km (0.041 R)
• M43: 14,113,662 km (0.079 R)
• M44: 14,330,279 km (0.116 R)
• M45: 15,118,959 km (0.102 R)
• M46: 15,474,105 km (0.043 R)
• M47: 16,147,295 km (0.116 R)
• M48: 16,419,264 km (0.103 R)
• M49: 17,059,842 km (0.071 R)
• M50: 17,661,973 km (0.036 R)
• M51: 18,365,383 km (0.103 R)
• M52: 20,042,375 km (0.089 R)
• M53: 21,419,124 km (0.083 R)
• M54: 22,420,981 km (0.089 R)
• M55: 23,029,545 km (0.08 R)
• M56: 23,952,564 km (0.101 R)
• M57: 24,522,532 km (0.051 R)
• M58: 24,835,341 km (0.094 R)
• M59: 25,412,340 km (0.086 R)
• M60: 25,728,889 km (0.11 R)
• M61: 25,834,655 km (0.065 R)
• M62: 25,940,570 km (0.093 R)
• M63: 26,419,283 km (0.06 R)
• M64: 26,525,946 km (0.026 R)
• M65: 26,739,871 km (0.112 R)
• M66: 27,981,235 km (0.116 R)
• M67: 28,362,709 km (0.043 R)
• M68: 28,800,881 km (0.119 R)
• M69: 28,910,836 km (0.109 R)
• M70: 29,186,096 km (0.088 R)
• M71: 30,744,008 km (0.096 R)
• M72: 31,250,546 km (0.119 R)
• M73: 31,987,017 km (0.09 R)
• M74: 32,901,359 km (0.118 R)
• M75: 33,188,736 km (0.117 R)
• M76: 33,650,545 km (0.082 R)
• M77: 34,755,625 km (0.091 R)
• M78: 34,931,252 km (0.119 R)
• M79: 36,168,576 km (0.045 R)
• M80: 37,540,239 km (0.09 R)
• M81: 37,840,632 km (0.117 R)
• M82: 39,050,430 km (0.11 R)
• M83: 39,172,053 km (0.039 R)
• M84: 40,580,367 km (0.099 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 273 - 19,744 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit