A cation is a positively charged ion with fewer electrons than protons while an anion is a negatively charged ion with more electrons than protons.
Mirzam (stars.astro.illinois.edu) MIRZAM (Beta Canis Majoris). Commonly also seen spelled “Murzim,” Mirzam is the Beta star of Canis Major, the Larger Dog, the greater of Orion’s canine companions.