What Is a Planetary Alignment?
A planetary alignment, popularly known as a planet parade, occurs when several planets in our solar system gather in a relatively small region of the sky as seen from Earth. This happens because the major planets all orbit the Sun in roughly the same plane (the ecliptic), so from Earth's perspective, they appear to follow a similar path across the sky. When multiple planets happen to cluster along this path at the same time, they create the visual effect of a line or cluster.
Planetary alignments are not physically significant — the planets are not actually lined up in space. They are simply in the same general direction from our viewpoint. But visually, they can be spectacular, especially when bright planets like Jupiter, Venus, and Saturn appear close together in the same patch of sky. The most dramatic alignments involve the five naked-eye planets — Mercury, Venus, Mars, Jupiter, and Saturn — all visible simultaneously.
Alignments are classified by how many planets are involved: a conjunction (two planets), a trio (three), and sometimes a quartet or quintet. The 2026 alignments range from conjunctions of Jupiter and Saturn to a potential four-planet lineup visible in the pre-dawn sky. All of these are visible without a telescope, though binoculars enhance the view.