Skygazers across the United States are set to witness a rare astronomical event tonight as seven planets—Mars, Jupiter, Uranus, Venus, Neptune, Mercury, and Saturn—align in what is known as a planetary parade. This celestial phenomenon, which last occurred in January, will be visible briefly just after sunset.
According to NASA, “planet parade” isn’t a technical term in astronomy, but planetary alignments, especially those involving four or more planets, are noteworthy and infrequent. The event occurs when multiple planets appear in close proximity in the sky along the ecliptic plane, creating the illusion of a cosmic lineup.
Best time and how to watch
The planetary parade is expected to be visible just after dusk on February 28, according to Sky at Night Magazine. The best viewing conditions require a dark location with minimal light pollution and an unobstructed view of the western horizon.
NASA states that while all seven planets will technically align, not all of them will be visible to the naked eye. Mercury and Saturn, which will be positioned close to the Sun and low in the horizon, might be harder to spot. However, Venus—being the brightest—will be near the Pisces constellation, while Mars will appear reddish and high in the sky, close to Gemini.
For those hoping to catch Uranus and Neptune, a telescope will be necessary. Uranus will be located in the Aries constellation, and Neptune will be near Pisces, according to Star Walk, a skywatching app.
How long will the planetary parade be visible?
The alignment will last only a few minutes after sunset, as the planets near the horizon—Saturn and Mercury—will quickly set. Once they dip below the horizon, they will no longer be visible, but the other planets will linger in the night sky for a longer duration.
When is the next planetary parade?
Planetary alignments featuring multiple bright planets are rare. According to NASA, a similar seven-planet alignment is not expected to occur again until 2040.
Tonight’s event presents a rare opportunity for astronomy enthusiasts and casual observers alike. To maximize your chances of witnessing this celestial spectacle, head to an area with clear skies, minimal light pollution, and a broad view of the western horizon.
