Q. John Tebbutt first made his name when he discovered a comet in 1861. Could you give me the official name for this comet? I know Tebbutt’s name was in there, there were some numbers as well. Another comet discovered by him twenty years later, has I think the official name, Comet Tebbutt 1881 (III).
A. The two comets are listed by the International Astronomical Union Minor Planet Centre as 1861 II Great comet (Tebbutt) and 1881 III Great comet (Tebbutt).
For a picture see http://cometography.com/lcomets/1861j1.html