🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.6

Radius: 8.8

Gravity: 11.36 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.52 AU - 0.86 AU

Year: 396 Days

Day: 12.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (48)

Outer Limit: 69,623,420 km

• M1: 118,182 km (0.108 R)
• M2: 175,777 km (0.08 R)
• M3: 251,474 km (0.099 R)
• M4: 311,463 km (0.08 R)
• M5: 410,646 km (0.056 R)
• M6: 486,043 km (0.089 R)
• M7: 570,566 km (0.088 R)
• M8: 632,799 km (0.071 R)
• M9: 689,197 km (0.101 R)
• M10: 820,993 km (0.049 R)
• M11: 1,008,439 km (0.111 R)
• M12: 1,139,637 km (0.082 R)
• M13: 1,235,379 km (0.109 R)
• M14: 1,318,256 km (0.044 R)
• M15: 1,397,693 km (0.069 R)
• M16: 1,589,627 km (0.059 R)
• M17: 1,819,409 km (0.091 R)
• M18: 1,902,436 km (0.035 R)
• M19: 2,041,562 km (0.027 R)
• M20: 2,097,063 km (0.065 R)
• M21: 2,234,693 km (0.099 R)
• M22: 2,317,421 km (0.082 R)
• M23: 2,381,748 km (0.063 R)
• M24: 2,518,929 km (0.032 R)
• M25: 2,578,618 km (0.045 R)
• M26: 2,712,658 km (0.058 R)
• M27: 2,849,241 km (0.091 R)
• M28: 2,904,443 km (0.106 R)
• M29: 3,164,743 km (0.107 R)
• M30: 3,243,581 km (0.07 R)
• M31: 3,323,167 km (0.103 R)
• M32: 3,418,012 km (0.079 R)
• M33: 3,662,904 km (0.119 R)
• M34: 3,768,520 km (0.091 R)
• M35: 3,829,257 km (0.099 R)
• M36: 4,060,236 km (0.099 R)
• M37: 4,169,741 km (0.094 R)
• M38: 4,471,480 km (0.115 R)
• M39: 4,552,114 km (0.113 R)
• M40: 4,641,424 km (0.076 R)
• M41: 4,805,233 km (0.116 R)
• M42: 5,046,086 km (0.117 R)
• M43: 5,393,602 km (0.06 R)
• M44: 5,453,590 km (0.076 R)
• M45: 5,678,885 km (0.069 R)
• M46: 5,748,747 km (0.098 R)
• M47: 5,933,650 km (0.09 R)
• M48: 5,995,733 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.4

Radius: 9

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.74 AU - 0.84 AU

Year: 485 Days

Day: 14.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 69,623,420 km

• M1: 119,828 km (0.073 R)
• M2: 192,532 km (0.085 R)
• M3: 263,741 km (0.092 R)
• M4: 348,563 km (0.05 R)
• M5: 432,338 km (0.07 R)
• M6: 503,846 km (0.091 R)
• M7: 562,338 km (0.103 R)
• M8: 649,404 km (0.108 R)
• M9: 789,278 km (0.112 R)
• M10: 858,841 km (0.119 R)
• M11: 943,813 km (0.116 R)
• M12: 1,067,530 km (0.102 R)
• M13: 1,192,145 km (0.11 R)
• M14: 1,311,973 km (0.036 R)
• M15: 1,405,921 km (0.113 R)
• M16: 1,491,940 km (0.117 R)
• M17: 1,553,723 km (0.077 R)
• M18: 1,632,113 km (0.06 R)
• M19: 1,701,227 km (0.078 R)
• M20: 1,897,948 km (0.091 R)
• M21: 1,959,583 km (0.106 R)
• M22: 2,033,334 km (0.118 R)
• M23: 2,096,465 km (0.112 R)
• M24: 2,160,193 km (0.109 R)
• M25: 2,242,472 km (0.115 R)
• M26: 2,307,697 km (0.084 R)
• M27: 2,409,872 km (0.116 R)
• M28: 2,476,892 km (0.073 R)
• M29: 2,563,060 km (0.087 R)
• M30: 2,744,672 km (0.095 R)
• M31: 2,801,968 km (0.115 R)
• M32: 2,878,861 km (0.088 R)
• M33: 3,015,444 km (0.072 R)
• M34: 3,214,110 km (0.097 R)
• M35: 3,288,012 km (0.11 R)
• M36: 3,423,846 km (0.108 R)
• M37: 3,589,451 km (0.114 R)
• M38: 3,871,294 km (0.103 R)
• M39: 4,233,919 km (0.099 R)
• M40: 4,352,251 km (0.113 R)
• M41: 4,554,358 km (0.107 R)
• M42: 4,637,684 km (0.039 R)
• M43: 4,867,316 km (0.11 R)
• M44: 5,022,599 km (0.09 R)
• M45: 5,147,962 km (0.029 R)
• M46: 5,433,843 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228

Radius: 11.3

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.82 AU - 1.02 AU

Year: 609 Days

Day: 13.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 69,623,420 km

• M1: 140,921 km (0.106 R)
• M2: 225,294 km (0.094 R)
• M3: 296,353 km (0.091 R)
• M4: 396,883 km (0.109 R)
• M5: 472,729 km (0.113 R)
• M6: 577,897 km (0.096 R)
• M7: 660,175 km (0.108 R)
• M8: 769,531 km (0.036 R)
• M9: 854,054 km (0.119 R)
• M10: 1,080,097 km (0.109 R)
• M11: 1,194,090 km (0.101 R)
• M12: 1,307,635 km (0.084 R)
• M13: 1,415,495 km (0.086 R)
• M14: 1,492,388 km (0.109 R)
• M15: 1,570,628 km (0.102 R)
• M16: 1,767,648 km (0.074 R)
• M17: 1,856,210 km (0.109 R)
• M18: 1,930,261 km (0.074 R)
• M19: 2,065,049 km (0.101 R)
• M20: 2,147,477 km (0.112 R)
• M21: 2,219,883 km (0.086 R)
• M22: 2,293,036 km (0.054 R)
• M23: 2,413,163 km (0.092 R)
• M24: 2,529,401 km (0.084 R)
• M25: 2,653,717 km (0.094 R)
• M26: 2,737,641 km (0.112 R)
• M27: 2,865,248 km (0.113 R)
• M28: 2,951,566 km (0.076 R)
• M29: 3,051,198 km (0.12 R)
• M30: 3,215,606 km (0.065 R)
• M31: 3,487,426 km (0.046 R)
• M32: 3,592,892 km (0.12 R)
• M33: 3,699,555 km (0.072 R)
• M34: 3,786,920 km (0.044 R)
• M35: 3,868,302 km (0.096 R)
• M36: 4,088,061 km (0.103 R)
• M37: 4,220,605 km (0.093 R)
• M38: 4,361,526 km (0.086 R)
• M39: 4,525,635 km (0.051 R)
• M40: 4,874,796 km (0.037 R)
• M41: 5,000,608 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.7

Radius: 12.4

Gravity: 6.01 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.07 AU - 1.31 AU

Year: 896 Days

Day: 11.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (52)

Outer Limit: 69,623,420 km

• M1: 159,023 km (0.11 R)
• M2: 257,308 km (0.105 R)
• M3: 360,381 km (0.116 R)
• M4: 460,313 km (0.101 R)
• M5: 666,907 km (0.036 R)
• M6: 767,587 km (0.057 R)
• M7: 926,011 km (0.087 R)
• M8: 1,040,603 km (0.057 R)
• M9: 1,218,175 km (0.041 R)
• M10: 1,314,816 km (0.092 R)
• M11: 1,406,370 km (0.09 R)
• M12: 1,548,039 km (0.084 R)
• M13: 1,854,714 km (0.06 R)
• M14: 1,976,038 km (0.066 R)
• M15: 2,135,958 km (0.086 R)
• M16: 2,235,740 km (0.102 R)
• M17: 2,337,317 km (0.052 R)
• M18: 2,468,814 km (0.03 R)
• M19: 2,593,279 km (0.057 R)
• M20: 2,808,700 km (0.055 R)
• M21: 3,009,760 km (0.092 R)
• M22: 3,278,288 km (0.057 R)
• M23: 3,468,875 km (0.049 R)
• M24: 3,554,745 km (0.052 R)
• M25: 3,783,779 km (0.106 R)
• M26: 4,267,878 km (0.097 R)
• M27: 4,441,411 km (0.09 R)
• M28: 4,534,910 km (0.116 R)
• M29: 4,819,595 km (0.12 R)
• M30: 4,976,224 km (0.109 R)
• M31: 5,670,358 km (0.099 R)
• M32: 6,028,944 km (0.056 R)
• M33: 6,145,780 km (0.107 R)
• M34: 6,263,364 km (0.083 R)
• M35: 6,394,860 km (0.118 R)
• M36: 6,727,865 km (0.105 R)
• M37: 6,835,725 km (0.113 R)
• M38: 7,011,951 km (0.082 R)
• M39: 7,189,973 km (0.119 R)
• M40: 7,272,551 km (0.098 R)
• M41: 7,438,754 km (0.085 R)
• M42: 7,690,378 km (0.108 R)
• M43: 8,030,264 km (0.06 R)
• M44: 8,202,152 km (0.102 R)
• M45: 8,651,694 km (0.1 R)
• M46: 8,901,672 km (0.096 R)
• M47: 9,318,751 km (0.082 R)
• M48: 9,635,599 km (0.11 R)
• M49: 9,803,148 km (0.056 R)
• M50: 10,079,157 km (0.036 R)
• M51: 10,218,283 km (0.115 R)
• M52: 10,311,332 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.1

Radius: 9.7

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.2 AU - 1.38 AU

Year: 1011 Days

Day: 11.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (51)

Outer Limit: 69,623,420 km

• M1: 122,221 km (0.11 R)
• M2: 217,515 km (0.107 R)
• M3: 281,693 km (0.091 R)
• M4: 368,609 km (0.085 R)
• M5: 435,330 km (0.088 R)
• M6: 584,030 km (0.101 R)
• M7: 781,499 km (0.093 R)
• M8: 909,705 km (0.081 R)
• M9: 986,299 km (0.063 R)
• M10: 1,095,505 km (0.119 R)
• M11: 1,167,312 km (0.106 R)
• M12: 1,272,629 km (0.084 R)
• M13: 1,359,246 km (0.057 R)
• M14: 1,442,273 km (0.078 R)
• M15: 1,643,033 km (0.085 R)
• M16: 2,116,810 km (0.06 R)
• M17: 2,194,451 km (0.08 R)
• M18: 2,299,469 km (0.111 R)
• M19: 2,392,668 km (0.087 R)
• M20: 2,466,869 km (0.071 R)
• M21: 2,576,225 km (0.084 R)
• M22: 2,729,264 km (0.096 R)
• M23: 2,828,148 km (0.113 R)
• M24: 2,892,475 km (0.073 R)
• M25: 2,957,251 km (0.099 R)
• M26: 3,058,977 km (0.118 R)
• M27: 3,132,280 km (0.052 R)
• M28: 3,221,141 km (0.06 R)
• M29: 3,356,079 km (0.108 R)
• M30: 3,592,892 km (0.097 R)
• M31: 3,678,163 km (0.091 R)
• M32: 3,764,331 km (0.077 R)
• M33: 3,827,312 km (0.061 R)
• M34: 3,922,456 km (0.065 R)
• M35: 4,002,341 km (0.112 R)
• M36: 4,115,138 km (0.094 R)
• M37: 4,311,111 km (0.083 R)
• M38: 4,435,128 km (0.086 R)
• M39: 4,526,832 km (0.083 R)
• M40: 4,686,752 km (0.119 R)
• M41: 4,754,669 km (0.119 R)
• M42: 4,822,886 km (0.03 R)
• M43: 5,064,187 km (0.047 R)
• M44: 5,204,061 km (0.115 R)
• M45: 5,265,546 km (0.099 R)
• M46: 5,362,784 km (0.116 R)
• M47: 5,433,843 km (0.119 R)
• M48: 6,004,559 km (0.075 R)
• M49: 6,097,011 km (0.102 R)
• M50: 6,208,461 km (0.082 R)
• M51: 6,301,810 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 895.8

Radius: 3.7

Gravity: 65.43 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 5.05 AU - 8.03 AU

Year: 11545 Days

Day: 23.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (98)

Outer Limit: 69,623,420 km

• M1: 439,668 km (0.115 R)
• M2: 489,933 km (0.101 R)
• M3: 652,097 km (0.112 R)
• M4: 1,159,533 km (0.083 R)
• M5: 1,424,321 km (0.045 R)
• M6: 1,628,223 km (0.045 R)
• M7: 1,707,211 km (0.117 R)
• M8: 1,787,246 km (0.097 R)
• M9: 1,814,323 km (0.11 R)
• M10: 1,868,627 km (0.067 R)
• M11: 2,148,824 km (0.079 R)
• M12: 2,352,726 km (0.085 R)
• M13: 3,000,784 km (0.054 R)
• M14: 3,909,142 km (0.061 R)
• M15: 5,240,114 km (0.075 R)
• M16: 5,632,509 km (0.096 R)
• M17: 5,752,038 km (0.057 R)
• M18: 5,993,639 km (0.099 R)
• M19: 6,320,959 km (0.081 R)
• M20: 6,362,397 km (0.114 R)
• M21: 7,078,672 km (0.099 R)
• M22: 7,864,360 km (0.119 R)
• M23: 8,358,183 km (0.118 R)
• M24: 8,631,648 km (0.092 R)
• M25: 9,047,380 km (0.107 R)
• M26: 9,281,201 km (0.085 R)
• M27: 9,328,175 km (0.1 R)
• M28: 10,090,825 km (0.083 R)
• M29: 10,479,630 km (0.088 R)
• M30: 11,422,545 km (0.103 R)
• M31: 11,573,938 km (0.071 R)
• M32: 11,878,669 km (0.078 R)
• M33: 12,340,628 km (0.049 R)
• M34: 12,756,210 km (0.098 R)
• M35: 13,441,219 km (0.037 R)
• M36: 13,976,331 km (0.059 R)
• M37: 14,030,186 km (0.116 R)
• M38: 14,463,721 km (0.073 R)
• M39: 15,011,997 km (0.093 R)
• M40: 15,790,803 km (0.078 R)
• M41: 18,855,615 km (0.102 R)
• M42: 18,915,155 km (0.047 R)
• M43: 19,695,158 km (0.115 R)
• M44: 20,363,113 km (0.08 R)
• M45: 20,485,484 km (0.06 R)
• M46: 20,669,339 km (0.112 R)
• M47: 21,348,215 km (0.079 R)
• M48: 22,034,270 km (0.092 R)
• M49: 22,222,614 km (0.104 R)
• M50: 22,474,687 km (0.085 R)
• M51: 22,664,227 km (0.11 R)
• M52: 22,727,657 km (0.105 R)
• M53: 23,045,103 km (0.11 R)
• M54: 23,236,289 km (0.086 R)
• M55: 24,006,419 km (0.119 R)
• M56: 24,200,298 km (0.075 R)
• M57: 24,784,926 km (0.074 R)
• M58: 25,769,580 km (0.079 R)
• M59: 26,034,368 km (0.118 R)
• M60: 26,100,640 km (0.111 R)
• M61: 26,566,487 km (0.058 R)
• M62: 26,766,949 km (0.102 R)
• M63: 26,968,008 km (0.095 R)
• M64: 27,035,178 km (0.065 R)
• M65: 27,641,647 km (0.098 R)
• M66: 28,457,255 km (0.107 R)
• M67: 30,880,740 km (0.117 R)
• M68: 35,627,182 km (0.112 R)
• M69: 35,848,138 km (0.108 R)
• M70: 36,069,692 km (0.055 R)
• M71: 39,599,155 km (0.08 R)
• M72: 39,904,634 km (0.042 R)
• M73: 40,287,604 km (0.085 R)
• M74: 41,676,022 km (0.044 R)
• M75: 41,986,587 km (0.077 R)
• M76: 42,220,109 km (0.109 R)
• M77: 42,532,171 km (0.086 R)
• M78: 43,237,076 km (0.1 R)
• M79: 45,055,737 km (0.03 R)
• M80: 45,294,794 km (0.099 R)
• M81: 45,694,071 km (0.059 R)
• M82: 45,774,106 km (0.108 R)
• M83: 46,415,881 km (0.116 R)
• M84: 46,818,598 km (0.116 R)
• M85: 47,465,160 km (0.094 R)
• M86: 47,952,101 km (0.064 R)
• M87: 48,359,157 km (0.112 R)
• M88: 48,440,688 km (0.078 R)
• M89: 49,012,750 km (0.071 R)
• M90: 49,504,778 km (0.113 R)
• M91: 50,659,524 km (0.072 R)
• M92: 51,739,620 km (0.088 R)
• M93: 52,827,346 km (0.092 R)
• M94: 53,416,014 km (0.108 R)
• M95: 54,176,270 km (0.105 R)
• M96: 55,451,293 km (0.064 R)
• M97: 56,220,974 km (0.096 R)
• M98: 56,564,152 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 420.1

Radius: 4.2

Gravity: 23.82 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 7.92 AU - 12.4 AU

Year: 22354 Days

Day: 18.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 69,623,420 km

• M1: 132,544 km (0.104 R)
• M2: 206,445 km (0.094 R)
• M3: 488,437 km (0.105 R)
• M4: 527,482 km (0.091 R)
• M5: 716,424 km (0.093 R)
• M6: 1,481,169 km (0.12 R)
• M7: 1,837,511 km (0.096 R)
• M8: 2,057,270 km (0.06 R)
• M9: 2,590,437 km (0.062 R)
• M10: 2,660,000 km (0.037 R)
• M11: 2,944,236 km (0.071 R)
• M12: 3,618,772 km (0.049 R)
• M13: 3,973,319 km (0.072 R)
• M14: 4,715,175 km (0.119 R)
• M15: 5,678,137 km (0.118 R)
• M16: 6,181,833 km (0.114 R)
• M17: 6,843,205 km (0.037 R)
• M18: 6,891,376 km (0.103 R)
• M19: 6,939,546 km (0.066 R)
• M20: 7,726,281 km (0.102 R)
• M21: 7,826,512 km (0.079 R)
• M22: 7,876,926 km (0.106 R)
• M23: 8,181,059 km (0.101 R)
• M24: 8,232,072 km (0.082 R)
• M25: 8,283,234 km (0.099 R)
• M26: 9,169,452 km (0.108 R)
• M27: 9,275,666 km (0.11 R)
• M28: 9,650,559 km (0.032 R)
• M29: 10,693,106 km (0.094 R)
• M30: 10,805,005 km (0.091 R)
• M31: 11,944,193 km (0.07 R)
• M32: 14,027,792 km (0.074 R)
• M33: 14,334,468 km (0.04 R)
• M34: 14,643,388 km (0.118 R)
• M35: 16,220,598 km (0.032 R)
• M36: 16,284,775 km (0.082 R)
• M37: 16,542,533 km (0.106 R)
• M38: 16,866,412 km (0.07 R)
• M39: 17,061,787 km (0.112 R)
• M40: 17,718,521 km (0.081 R)
• M41: 18,988,907 km (0.109 R)
• M42: 19,124,293 km (0.109 R)
• M43: 19,943,640 km (0.097 R)
• M44: 21,545,534 km (0.116 R)
• M45: 22,540,809 km (0.112 R)
• M46: 23,260,674 km (0.102 R)
• M47: 26,215,082 km (0.082 R)
• M48: 27,124,188 km (0.107 R)
• M49: 28,120,660 km (0.087 R)
• M50: 28,197,852 km (0.093 R)
• M51: 29,441,759 km (0.103 R)
• M52: 30,228,195 km (0.096 R)
• M53: 31,021,662 km (0.091 R)
• M54: 32,143,795 km (0.053 R)
• M55: 33,933,883 km (0.103 R)
• M56: 37,185,992 km (0.058 R)
• M57: 37,440,158 km (0.104 R)
• M58: 37,524,980 km (0.112 R)
• M59: 38,035,707 km (0.111 R)
• M60: 39,149,763 km (0.094 R)
• M61: 39,840,755 km (0.094 R)
• M62: 41,585,814 km (0.113 R)
• M63: 41,849,705 km (0.049 R)
• M64: 42,290,720 km (0.076 R)
• M65: 42,467,544 km (0.106 R)
• M66: 43,355,557 km (0.101 R)
• M67: 45,420,906 km (0.045 R)
• M68: 47,059,601 km (0.074 R)
• M69: 47,426,265 km (0.038 R)
• M70: 47,886,129 km (0.088 R)
• M71: 48,162,735 km (0.101 R)
• M72: 50,207,140 km (0.084 R)
• M73: 50,300,788 km (0.085 R)
• M74: 52,564,503 km (0.042 R)
• M75: 52,849,786 km (0.092 R)
• M76: 53,135,668 km (0.036 R)
• M77: 53,421,998 km (0.096 R)
• M78: 53,517,591 km (0.113 R)
• M79: 54,092,196 km (0.111 R)
• M80: 54,668,747 km (0.107 R)
• M81: 55,731,041 km (0.084 R)
• M82: 56,897,755 km (0.067 R)
• M83: 57,484,179 km (0.096 R)
• M84: 58,564,425 km (0.072 R)
• M85: 58,860,180 km (0.036 R)
• M86: 59,354,152 km (0.09 R)
• M87: 60,147,469 km (0.053 R)
• M88: 66,105,653 km (0.088 R)
• M89: 67,753,474 km (0.109 R)
• M90: 68,374,904 km (0.112 R)
• M91: 68,478,725 km (0.104 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 454 - 20,405 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit