Procyon, in Canis Minor and Regulus in Leo.
"Three Expeditions into the Interior of Eastern Australia, Vol 2 (of 2)" by Thomas Mitchell
The constellation Leo Minor, now due east and about midway between the horizon and the zenith, is well worth sweeping over.
"Half-hours with the Telescope" by Richard A. Proctor
Hence, the Leo-Itype groups make a contribution of minor importance to the mean density of matter.
The Local Group and other neighboring galaxy groups