"C/2008 G6" . . . . . . "X/1954 V1" . "C/1889 G1" . "C/2006 P1" . . . . . . . . . "C/1999" . . . "C/1889 G1" . . "P/2010 WK" . . "C/2012 Y1" . "D/1895 Q1" . . . "C/2008 C3" . . . . . . . . "Comet C/1999 F1" . . "C/2007" . . . . "P/2021 U3" . . "C/2021 C1" . . . . "P/2021 C2" . . "C/2008 J12" . . . "C/2008 J9" . "Comet P/2005 JQ5" .