Mercury meek in the evening, Comet Leonard approaches the sun, and Star of Bethlehem
Mercury is an evening object, but you'll have trouble finding it.
\nComet Leonard enters Microscopium as its orbital position takes it closer to the sun.
\nA popular question this time of year is what was the Star of Bethlehem. Most of the possible answers don't actually involve stars. When they do, they involve planets too.