cometologyn.

1640 E. Chilmead tr. J. Ferrand Ερωτομανια xxi. 156 Iohn Taxil, a French writer, being very much offended with a certaine scrupulous Bigot, that had taxed him of errour and impiety in his Cometology [Fr. Cometologie].

1734 J. Kirkby tr. I. Barrow Usefulness Math. Learning ii. 23 Also hither are referred Cometology [L. Cometologia], and the Doctrine which treats of new Stars, sometimes appearing out of the common Course.

1834 Mechanics' Mag. 20 Sept. 428/2 He concluded by giving a scientific analysis of the interesting subject of cometology.

1963 Brit. Jrnl. Hist. Sci. 1 296 More general works by Tycho's contemporaries..indicate whom they cited as authorities for the new cometology or astronomy.

1986 New Scientist 30 Jan. 64/1 Comets are at the very focus of researches into the origin of the Solar System and Sir Fred [Hoyle] is now a leading disciple of cometology.

2008 Proc. Amer. Philos. Soc. 152 257 Pingree..was known as ‘Abu Kayd’ (the father of the comet), since his name resembled that of the pioneer in research on cometology, Alexandre Guy Pingré (1711–1796).