🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.73 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984

Radius: 13.3

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.39 AU - 1.51 AU

Year: 1205 Days

Day: 12.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (56)

Outer Limit: 50,265,275 km

• M1: 171,439 km (0.087 R)
• M2: 333,454 km (0.107 R)
• M3: 449,242 km (0.108 R)
• M4: 583,731 km (0.078 R)
• M5: 680,222 km (0.036 R)
• M6: 862,731 km (0.091 R)
• M7: 960,568 km (0.039 R)
• M8: 1,086,829 km (0.073 R)
• M9: 1,304,793 km (0.043 R)
• M10: 1,794,277 km (0.089 R)
• M11: 2,003,714 km (0.086 R)
• M12: 2,096,016 km (0.076 R)
• M13: 2,242,622 km (0.116 R)
• M14: 2,491,104 km (0.073 R)
• M15: 2,737,342 km (0.099 R)
• M16: 2,863,602 km (0.084 R)
• M17: 3,015,295 km (0.073 R)
• M18: 3,133,776 km (0.034 R)
• M19: 3,326,907 km (0.066 R)
• M20: 3,486,678 km (0.086 R)
• M21: 3,762,985 km (0.116 R)
• M22: 3,865,310 km (0.077 R)
• M23: 4,059,637 km (0.117 R)
• M24: 4,800,147 km (0.11 R)
• M25: 4,981,310 km (0.102 R)
• M26: 5,108,019 km (0.097 R)
• M27: 5,336,156 km (0.049 R)
• M28: 5,509,540 km (0.053 R)
• M29: 5,728,850 km (0.084 R)
• M30: 5,861,843 km (0.112 R)
• M31: 5,980,923 km (0.062 R)
• M32: 6,206,367 km (0.057 R)
• M33: 6,465,321 km (0.072 R)
• M34: 6,588,440 km (0.107 R)
• M35: 7,057,130 km (0.095 R)
• M36: 7,279,732 km (0.114 R)
• M37: 7,423,944 km (0.105 R)
• M38: 7,780,585 km (0.094 R)
• M39: 7,961,000 km (0.103 R)
• M40: 8,060,034 km (0.1 R)
• M41: 8,443,603 km (0.094 R)
• M42: 8,527,677 km (0.09 R)
• M43: 8,730,831 km (0.103 R)
• M44: 8,918,427 km (0.09 R)
• M45: 9,141,926 km (0.095 R)
• M46: 9,245,747 km (0.083 R)
• M47: 9,929,858 km (0.042 R)
• M48: 10,090,077 km (0.075 R)
• M49: 10,340,953 km (0.11 R)
• M50: 10,575,821 km (0.099 R)
• M51: 11,365,399 km (0.094 R)
• M52: 11,551,798 km (0.066 R)
• M53: 11,757,944 km (0.101 R)
• M54: 11,852,041 km (0.111 R)
• M55: 12,211,973 km (0.066 R)
• M56: 12,422,009 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.5

Radius: 9.9

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.66 AU - 1.78 AU

Year: 1557 Days

Day: 13.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (62)

Outer Limit: 50,265,275 km

• M1: 175,628 km (0.084 R)
• M2: 256,560 km (0.064 R)
• M3: 337,194 km (0.08 R)
• M4: 464,501 km (0.081 R)
• M5: 593,156 km (0.119 R)
• M6: 728,691 km (0.076 R)
• M7: 868,565 km (0.049 R)
• M8: 1,153,998 km (0.03 R)
• M9: 1,288,636 km (0.116 R)
• M10: 1,420,731 km (0.115 R)
• M11: 1,516,922 km (0.081 R)
• M12: 1,631,814 km (0.065 R)
• M13: 1,698,983 km (0.076 R)
• M14: 1,888,224 km (0.11 R)
• M15: 2,039,318 km (0.1 R)
• M16: 2,111,873 km (0.109 R)
• M17: 2,203,876 km (0.113 R)
• M18: 2,363,198 km (0.12 R)
• M19: 2,555,730 km (0.109 R)
• M20: 2,624,395 km (0.032 R)
• M21: 2,813,786 km (0.061 R)
• M22: 2,884,696 km (0.109 R)
• M23: 3,017,987 km (0.085 R)
• M24: 3,132,579 km (0.108 R)
• M25: 3,206,182 km (0.062 R)
• M26: 3,291,004 km (0.097 R)
• M27: 3,408,887 km (0.048 R)
• M28: 3,561,028 km (0.067 R)
• M29: 3,715,413 km (0.1 R)
• M30: 3,928,590 km (0.087 R)
• M31: 4,180,512 km (0.118 R)
• M32: 4,627,960 km (0.052 R)
• M33: 4,857,592 km (0.114 R)
• M34: 5,202,715 km (0.08 R)
• M35: 5,302,796 km (0.056 R)
• M36: 5,466,755 km (0.082 R)
• M37: 5,645,375 km (0.064 R)
• M38: 6,060,659 km (0.102 R)
• M39: 6,405,482 km (0.085 R)
• M40: 6,607,289 km (0.078 R)
• M41: 6,715,897 km (0.104 R)
• M42: 7,337,327 km (0.114 R)
• M43: 7,463,887 km (0.101 R)
• M44: 7,662,104 km (0.104 R)
• M45: 7,876,477 km (0.045 R)
• M46: 8,282,037 km (0.04 R)
• M47: 8,369,702 km (0.114 R)
• M48: 8,649,749 km (0.105 R)
• M49: 8,888,058 km (0.103 R)
• M50: 8,992,926 km (0.113 R)
• M51: 9,113,353 km (0.038 R)
• M52: 9,188,900 km (0.106 R)
• M53: 9,370,960 km (0.108 R)
• M54: 9,493,032 km (0.106 R)
• M55: 9,600,294 km (0.106 R)
• M56: 9,924,472 km (0.079 R)
• M57: 9,986,705 km (0.118 R)
• M58: 10,158,294 km (0.102 R)
• M59: 10,220,975 km (0.109 R)
• M60: 10,472,898 km (0.09 R)
• M61: 10,647,329 km (0.102 R)
• M62: 10,742,773 km (0.05 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.8

Radius: 12.1

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.53 AU - 2.17 AU

Year: 1737 Days

Day: 12.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 50,265,275 km

• M1: 185,202 km (0.112 R)
• M2: 261,198 km (0.1 R)
• M3: 346,020 km (0.103 R)
• M4: 481,855 km (0.069 R)
• M5: 598,242 km (0.1 R)
• M6: 808,726 km (0.108 R)
• M7: 887,415 km (0.096 R)
• M8: 1,175,839 km (0.052 R)
• M9: 1,257,370 km (0.079 R)
• M10: 1,359,845 km (0.055 R)
• M11: 1,523,954 km (0.115 R)
• M12: 1,746,406 km (0.116 R)
• M13: 1,840,503 km (0.12 R)
• M14: 1,925,773 km (0.054 R)
• M15: 2,045,152 km (0.07 R)
• M16: 2,212,104 km (0.06 R)
• M17: 2,291,690 km (0.097 R)
• M18: 2,372,173 km (0.06 R)
• M19: 2,655,512 km (0.113 R)
• M20: 2,764,718 km (0.116 R)
• M21: 2,887,837 km (0.045 R)
• M22: 3,216,653 km (0.077 R)
• M23: 3,320,175 km (0.086 R)
• M24: 3,411,879 km (0.055 R)
• M25: 3,611,143 km (0.102 R)
• M26: 3,855,287 km (0.107 R)
• M27: 4,049,016 km (0.117 R)
• M28: 4,533,115 km (0.092 R)
• M29: 4,649,651 km (0.085 R)
• M30: 4,930,746 km (0.067 R)
• M31: 5,126,270 km (0.11 R)
• M32: 5,355,005 km (0.089 R)
• M33: 5,493,982 km (0.03 R)
• M34: 5,696,687 km (0.12 R)
• M35: 6,303,755 km (0.057 R)
• M36: 6,466,966 km (0.075 R)
• M37: 6,549,096 km (0.086 R)
• M38: 6,697,945 km (0.118 R)
• M39: 6,814,333 km (0.08 R)
• M40: 7,218,845 km (0.099 R)
• M41: 7,321,170 km (0.103 R)
• M42: 7,406,890 km (0.085 R)
• M43: 7,527,316 km (0.091 R)
• M44: 7,683,347 km (0.081 R)
• M45: 8,104,315 km (0.102 R)
• M46: 8,228,481 km (0.081 R)
• M47: 8,460,956 km (0.117 R)
• M48: 8,641,222 km (0.106 R)
• M49: 8,914,088 km (0.07 R)
• M50: 9,079,095 km (0.065 R)
• M51: 9,730,593 km (0.049 R)
• M52: 9,976,532 km (0.075 R)
• M53: 10,109,824 km (0.069 R)
• M54: 10,186,119 km (0.092 R)
• M55: 10,397,351 km (0.026 R)
• M56: 10,843,452 km (0.077 R)
• M57: 11,177,355 km (0.07 R)
• M58: 11,355,526 km (0.092 R)
• M59: 11,674,468 km (0.104 R)
• M60: 11,814,941 km (0.082 R)
• M61: 12,219,453 km (0.058 R)
• M62: 12,546,325 km (0.056 R)
• M63: 12,649,098 km (0.102 R)
• M64: 12,772,816 km (0.105 R)
• M65: 13,146,362 km (0.082 R)
• M66: 13,989,046 km (0.097 R)
• M67: 14,074,317 km (0.099 R)
• M68: 14,202,523 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990.4

Radius: 14

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2.98 AU - 3.16 AU

Year: 3713 Days

Day: 11.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (75)

Outer Limit: 50,265,275 km

• M1: 176,525 km (0.101 R)
• M2: 372,200 km (0.086 R)
• M3: 988,842 km (0.114 R)
• M4: 1,330,823 km (0.06 R)
• M5: 1,569,730 km (0.111 R)
• M6: 1,806,843 km (0.12 R)
• M7: 1,954,945 km (0.037 R)
• M8: 2,316,822 km (0.05 R)
• M9: 2,644,292 km (0.086 R)
• M10: 2,909,529 km (0.118 R)
• M11: 3,084,708 km (0.114 R)
• M12: 3,303,570 km (0.088 R)
• M13: 3,404,848 km (0.057 R)
• M14: 3,548,461 km (0.113 R)
• M15: 4,542,091 km (0.093 R)
• M16: 4,792,069 km (0.1 R)
• M17: 4,907,259 km (0.117 R)
• M18: 5,401,082 km (0.115 R)
• M19: 6,666,530 km (0.093 R)
• M20: 6,769,453 km (0.098 R)
• M21: 7,319,375 km (0.072 R)
• M22: 7,613,185 km (0.09 R)
• M23: 7,775,050 km (0.048 R)
• M24: 8,020,091 km (0.095 R)
• M25: 8,212,474 km (0.074 R)
• M26: 8,911,994 km (0.104 R)
• M27: 9,139,981 km (0.109 R)
• M28: 9,254,573 km (0.107 R)
• M29: 9,572,618 km (0.036 R)
• M30: 9,689,005 km (0.043 R)
• M31: 9,952,896 km (0.104 R)
• M32: 10,219,180 km (0.107 R)
• M33: 10,487,858 km (0.041 R)
• M34: 10,728,710 km (0.06 R)
• M35: 11,246,469 km (0.089 R)
• M36: 11,493,006 km (0.084 R)
• M37: 11,866,103 km (0.081 R)
• M38: 12,433,229 km (0.062 R)
• M39: 13,235,821 km (0.046 R)
• M40: 13,430,897 km (0.12 R)
• M41: 13,692,544 km (0.111 R)
• M42: 14,021,958 km (0.111 R)
• M43: 14,924,632 km (0.072 R)
• M44: 15,263,620 km (0.066 R)
• M45: 15,571,044 km (0.1 R)
• M46: 15,846,005 km (0.113 R)
• M47: 16,191,875 km (0.06 R)
• M48: 16,296,145 km (0.094 R)
• M49: 16,435,570 km (0.083 R)
• M50: 16,961,855 km (0.104 R)
• M51: 17,386,863 km (0.114 R)
• M52: 17,564,884 km (0.026 R)
• M53: 17,923,022 km (0.087 R)
• M54: 18,428,363 km (0.09 R)
• M55: 19,232,003 km (0.099 R)
• M56: 19,342,556 km (0.063 R)
• M57: 20,121,811 km (0.117 R)
• M58: 20,271,409 km (0.06 R)
• M59: 21,214,773 km (0.073 R)
• M60: 22,365,779 km (0.036 R)
• M61: 22,520,912 km (0.071 R)
• M62: 22,948,912 km (0.07 R)
• M63: 23,262,020 km (0.074 R)
• M64: 23,419,098 km (0.114 R)
• M65: 24,011,206 km (0.06 R)
• M66: 24,448,630 km (0.107 R)
• M67: 25,371,649 km (0.038 R)
• M68: 25,492,824 km (0.049 R)
• M69: 25,695,379 km (0.078 R)
• M70: 25,979,765 km (0.063 R)
• M71: 26,224,357 km (0.093 R)
• M72: 26,469,698 km (0.057 R)
• M73: 26,962,772 km (0.119 R)
• M74: 27,541,866 km (0.099 R)
• M75: 27,666,481 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.6

Radius: 13

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 4.5 AU - 5.6 AU

Year: 7833 Days

Day: 8.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 50,265,275 km

• M1: 243,097 km (0.102 R)
• M2: 380,727 km (0.112 R)
• M3: 490,232 km (0.088 R)
• M4: 896,839 km (0.077 R)
• M5: 1,072,766 km (0.1 R)
• M6: 1,399,488 km (0.12 R)
• M7: 1,671,008 km (0.082 R)
• M8: 2,098,709 km (0.063 R)
• M9: 2,265,061 km (0.098 R)
• M10: 2,411,069 km (0.055 R)
• M11: 2,535,385 km (0.099 R)
• M12: 3,662,904 km (0.098 R)
• M13: 4,040,489 km (0.031 R)
• M14: 4,218,959 km (0.089 R)
• M15: 4,309,316 km (0.043 R)
• M16: 4,583,978 km (0.103 R)
• M17: 4,676,878 km (0.118 R)
• M18: 5,118,790 km (0.029 R)
• M19: 5,279,907 km (0.092 R)
• M20: 5,410,057 km (0.04 R)
• M21: 5,607,227 km (0.07 R)
• M22: 6,110,774 km (0.073 R)
• M23: 6,769,453 km (0.065 R)
• M24: 8,267,227 km (0.032 R)
• M25: 9,190,096 km (0.103 R)
• M26: 9,703,666 km (0.1 R)
• M27: 10,430,263 km (0.068 R)
• M28: 10,594,072 km (0.097 R)
• M29: 10,717,640 km (0.109 R)
• M30: 11,007,561 km (0.115 R)
• M31: 11,426,285 km (0.104 R)
• M32: 11,680,003 km (0.052 R)
• M33: 12,021,236 km (0.042 R)
• M34: 13,731,738 km (0.12 R)
• M35: 14,638,301 km (0.06 R)
• M36: 14,821,858 km (0.099 R)
• M37: 15,191,514 km (0.101 R)
• M38: 16,843,972 km (0.11 R)
• M39: 17,084,675 km (0.061 R)
• M40: 17,472,134 km (0.119 R)
• M41: 17,764,747 km (0.092 R)
• M42: 17,911,652 km (0.034 R)
• M43: 19,251,900 km (0.08 R)
• M44: 20,112,237 km (0.088 R)
• M45: 22,133,155 km (0.096 R)
• M46: 22,344,088 km (0.069 R)
• M47: 23,247,958 km (0.102 R)
• M48: 23,623,748 km (0.105 R)
• M49: 24,598,976 km (0.031 R)
• M50: 25,864,125 km (0.04 R)
• M51: 26,030,777 km (0.102 R)
• M52: 26,925,373 km (0.108 R)
• M53: 27,150,518 km (0.106 R)
• M54: 28,802,078 km (0.09 R)
• M55: 31,369,477 km (0.057 R)
• M56: 32,261,379 km (0.055 R)
• M57: 32,380,908 km (0.109 R)
• M58: 32,860,668 km (0.101 R)
• M59: 33,645,160 km (0.115 R)
• M60: 33,887,807 km (0.099 R)
• M61: 34,680,377 km (0.119 R)
• M62: 35,294,177 km (0.068 R)
• M63: 36,221,684 km (0.078 R)
• M64: 36,408,083 km (0.109 R)
• M65: 36,719,695 km (0.111 R)
• M66: 37,032,055 km (0.11 R)
• M67: 37,345,313 km (0.096 R)
• M68: 37,470,826 km (0.037 R)
• M69: 37,911,392 km (0.1 R)
• M70: 40,525,914 km (0.038 R)
• M71: 40,848,746 km (0.118 R)
• M72: 41,042,924 km (0.041 R)
• M73: 41,887,553 km (0.113 R)
• M74: 42,018,003 km (0.1 R)
• M75: 42,213,976 km (0.047 R)
• M76: 42,541,146 km (0.066 R)
• M77: 43,395,949 km (0.054 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 779.2

Radius: 3.1

Gravity: 81.08 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 4.87 AU - 7.07 AU

Year: 10069 Days

Day: 15.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 50,265,275 km

• M1: 88,712 km (0.067 R)
• M2: 170,093 km (0.108 R)
• M3: 1,008,888 km (0.079 R)
• M4: 1,049,579 km (0.12 R)
• M5: 1,394,701 km (0.091 R)
• M6: 1,417,290 km (0.106 R)
• M7: 1,626,877 km (0.03 R)
• M8: 1,821,204 km (0.079 R)
• M9: 2,231,701 km (0.11 R)
• M10: 2,284,958 km (0.08 R)
• M11: 2,869,437 km (0.089 R)
• M12: 3,014,995 km (0.11 R)
• M13: 3,683,997 km (0.045 R)
• M14: 3,778,693 km (0.119 R)
• M15: 4,035,103 km (0.117 R)
• M16: 4,231,226 km (0.09 R)
• M17: 4,666,406 km (0.093 R)
• M18: 5,186,109 km (0.118 R)
• M19: 5,434,891 km (0.027 R)
• M20: 6,166,873 km (0.107 R)
• M21: 6,506,161 km (0.117 R)
• M22: 7,046,060 km (0.117 R)
• M23: 8,004,533 km (0.09 R)
• M24: 8,250,472 km (0.108 R)
• M25: 8,582,131 km (0.083 R)
• M26: 8,791,717 km (0.119 R)
• M27: 9,045,435 km (0.117 R)
• M28: 9,215,977 km (0.109 R)
• M29: 9,952,148 km (0.054 R)
• M30: 10,084,093 km (0.073 R)
• M31: 10,617,410 km (0.06 R)
• M32: 10,978,090 km (0.111 R)
• M33: 11,068,896 km (0.117 R)
• M34: 11,388,587 km (0.113 R)
• M35: 11,757,645 km (0.107 R)
• M36: 11,943,595 km (0.077 R)
• M37: 12,460,156 km (0.107 R)
• M38: 13,224,452 km (0.067 R)
• M39: 14,102,292 km (0.079 R)
• M40: 14,448,761 km (0.096 R)
• M41: 14,548,243 km (0.058 R)
• M42: 14,697,841 km (0.116 R)
• M43: 15,049,097 km (0.104 R)
• M44: 15,200,490 km (0.109 R)
• M45: 17,055,803 km (0.109 R)
• M46: 17,583,734 km (0.117 R)
• M47: 17,636,841 km (0.102 R)
• M48: 17,796,312 km (0.078 R)
• M49: 18,439,434 km (0.111 R)
• M50: 18,655,602 km (0.095 R)
• M51: 19,418,252 km (0.097 R)
• M52: 19,748,415 km (0.103 R)
• M53: 19,803,467 km (0.089 R)
• M54: 20,246,875 km (0.12 R)
• M55: 23,557,177 km (0.032 R)
• M56: 23,674,162 km (0.071 R)
• M57: 24,558,734 km (0.029 R)
• M58: 24,975,065 km (0.054 R)
• M59: 25,154,284 km (0.07 R)
• M60: 25,214,123 km (0.031 R)
• M61: 26,117,095 km (0.114 R)
• M62: 26,299,006 km (0.077 R)
• M63: 26,908,319 km (0.051 R)
• M64: 27,769,105 km (0.1 R)
• M65: 28,202,789 km (0.086 R)
• M66: 28,576,335 km (0.057 R)
• M67: 31,817,223 km (0.119 R)
• M68: 33,909,200 km (0.088 R)
• M69: 34,041,444 km (0.058 R)
• M70: 34,306,382 km (0.037 R)
• M71: 35,708,713 km (0.113 R)
• M72: 36,925,392 km (0.112 R)
• M73: 36,993,459 km (0.098 R)
• M74: 38,018,354 km (0.096 R)
• M75: 38,087,019 km (0.12 R)
• M76: 38,293,165 km (0.1 R)
• M77: 38,499,760 km (0.1 R)
• M78: 38,568,725 km (0.041 R)
• M79: 39,538,268 km (0.047 R)
• M80: 40,445,729 km (0.119 R)
• M81: 40,866,997 km (0.093 R)
• M82: 41,078,079 km (0.105 R)
• M83: 41,430,681 km (0.072 R)
• M84: 41,572,051 km (0.084 R)
• M85: 43,567,687 km (0.049 R)
• M86: 43,855,364 km (0.071 R)
• M87: 43,927,470 km (0.062 R)
• M88: 44,071,533 km (0.086 R)
• M89: 44,577,174 km (0.055 R)
• M90: 44,867,094 km (0.067 R)
• M91: 45,157,613 km (0.09 R)
• M92: 45,303,022 km (0.112 R)
• M93: 48,022,113 km (0.087 R)
• M94: 48,244,865 km (0.119 R)
• M95: 48,393,565 km (0.1 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: 339 - 15,347 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit