Long-period comet C/1963 A1 (Ikeya), the probable parent body of π-Hydrids, δ-Corvids, November α-Sextantids, and ϑ-Leonids
and
A&A, 631 (2019) A112
Published online: 01 November 2019
DOI: 10.1051/0004-6361/201936407