The four-planet lineup that began in January concludes by mid- to late February, as Saturn sinks increasingly lower in the sky each night after sunset, according to NASA. While Mercury will briefly join Saturn later in February in the post-sunset glow, both planets will be too low and faint for most observers to spot.

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in February.

Known as the "Parade of Planets," the celestial event will feature appearances from Mars, Jupiter, Uranus, Venus, Neptune and Saturn through the end of January, according to Farmer's Almanac. Mercury will emerge in the night sky at the end of February, replacing Saturn.

Mars, Jupiter, Uranus, Venus, Neptune, Mercury and Saturn will appear in a row on the evening of 28 February, marking the last time for 15 years that all of the planets will be visible at the same time. Planetary parades of four or five planets happen relatively regularly, though alignments of six or seven are remarkably rare.