[skysurfer]

I know constellations like Air Pump(Antlia), Printing Machine, Cat (Felis), Argo Navis, Quadrans Muralis (part of Bootes and Hercules), Fornax (part of Eridanus) used to be constellations, but are deprecated. E.g. Argo Navis is Carina, Vela and Puppis now.

But sometimes I still see names like "Mensa" (Table Mountain), "Leo Minor" or "Sextans". But these are also deprecated now, the latter two being part of Leo ?

And another strange thing: Canopus lies in the part of former "Argo Navis" which is actually Vela, so why is it called alpha Carinae and not alpha Velorum ?