20D/Westphal, komet Halleyeve vrste, objekt blizu Zemlji.
1P/Halley • 2P/Encke • 3D/Biela • 4P/Faye • 5D/Brorsen • 6P/d'Arrest • 7P/Pons-Winnecke • 8P/Tuttle • 9P/Tempel • 10P/Tempel • 11P/Tempel-Swift-LINEAR • 12P/Pons-Brooks • 13P/Olbers • 14P/Wolf • 15P/Finlay • 16P/Brooks • 17P/Holmes • 18D/Perrine-Mrkos • 19P/Borrelly • 20D/Westphal • 21P/Giacobini-Zinner • 22P/Kopff • 23P/Brorsen-Metcalf • 24P/Schaumasse • 25D/Neujmin • 26P/Grigg-Skjellerup • 27P/Crommelin • 28P/Neujmin • 29P/Schwassmann-Wachmann • 30P/Reinmuth • 31P/Schwassmann-Wachmann • 32P/Comas Solà • 33P/Daniel • 34D/Gale • 35P/Herschel-Rigollet • 36P/Whipple • 37P/Forbes • 38P/Stephan-Oterma • 39P/Oterma • 40P/Väisälä • 41P/Tuttle-Giacobini-Kresák • 42P/Neujmin • 43P/Wolf-Harrington • 44P/Reinmuth • 45P/Honda-Mrkos-Pajdušáková • 46P/Wirtanen • 47P/Ashbrook-Jackson • 48P/Johnson • 49P/Arend-Rigaux • 50P/Arend • 51P/Harrington • 51P/Harrington-A • 51P/Harrington-D • 52P/Harrington-Abell • 53P/Van Biesbroeck • 54P/de Vico-Swift-NEAT • 55P/Tempel-Tuttle • 56P/Slaughter-Burnham • 57P/du Toit-Neujmin-Delporte • 57P/du Toit-Neujmin-Delporte-A • 58P/Jackson-Neujmin • 59P/Kearns-Kwee • 60P/Tsuchinshan • 61P/Šajn-Schaldach • 62P/Tsuchinshan • 63P/Wild • 64P/Swift-Gehrels • 65P/Gunn • 66P/du Toit • 67P/Čurjumov-Gerasimenko • 68P/Klemola • 69P/Taylor • 70P/Kojima • 71P/Clark • 72P/Denning-Fujikawa • 73P/Schwassmann-Wachmann • 74P/Smirnova-Černyh • 75D/Kohoutek • 76P/West-Kohoutek-Ikemura • 77P/Longmore • 78P/Gehrels • 79P/du Toit-Hartley • 80P/Peters-Hartley • 81P/Wild • 82P/Gehrels • 83D/Russell • 84P/Giclas • 85D/Boethin • 86P/Wild • 87P/Bus • 88P/Howell • 89P/Russell • 90P/Gehrels • 91P/Russell • 92P/Sanguin • 93P/Lovas • 94P/Russell • 95P/Hiron • 96P/Machholz • 97P/Metcalf-Brewington • 98P/Takamizawa • 99P/Kowal • 100P/Hartley • >>>