Six Planets Align: Rare Celestial Parade Visible This Weekend
Six planets will be visible to the naked eye this weekend in a rare celestial alignment, offering stargazers a unique opportunity to observe a significant portion of our solar system. Jupiter, Saturn, Venus, Mercury, Neptune, and Uranus will appear in the night sky over the coming days, though spotting Uranus and Neptune will require binoculars or a telescope.
The event has prompted NASA to release new “sonifications” – translations of astronomical data from the Chandra X-ray Observatory into sound – for Jupiter, Saturn, and Uranus, allowing the public to experience these planets in a new way.
“We’re seeing this alignment now given that the planets’ orbits have brought them into roughly the same area of the sky from our perspective on Earth,” explained Dr. Megan Argo, reader in astrophysics at the University of Lancashire. “Since each planet circles the sun at a different speed, they constantly shift position against the backdrop of stars. Only occasionally do their paths line up in a way that places several of them together in our night sky.”
While spotting four or five planets simultaneously is relatively common, observing six is a rarer occurrence. A similar alignment of all seven planets occurred last year, but the next full lineup is not expected until 2040, according to Dr. Argo.
The planetary parade will be visible from February 28th, and for a few days on either side. Mercury will turn into more difficult to observe by midweek, but Jupiter and Venus will remain easily visible for months. Observers in the UK should look to the west around 5:45 pm, while those in the US should begin observing around 6:00 pm, seeking a clear view from a high vantage point.
The planets will form a curved line across the sky. In the Northern Hemisphere, Jupiter will be prominent in the south-east, with Mercury, Saturn, Neptune, and Venus clustered near the western horizon. Venus will be the brightest, followed by a fainter Mercury to its right, with Saturn and Neptune positioned slightly above. Uranus will be faint and located below the Pleiades star cluster, also known as the Seven Sisters. Stargazing apps can assist in locating Uranus.
Dr. Argo cautioned against looking at the sun through binoculars or a telescope, as it can cause permanent eye damage.
Dr. Ed Bloomer, an astronomer at the Royal Observatory, Greenwich, confirmed the event will also be visible in the Southern Hemisphere, with a similar pattern, though reversed. “In Australia, Jupiter will be seen in the north, and Uranus will be visible in the north-west just above the Seven Sisters,” Dr. Argo added. Sunset occurs later in Australia, making observations possible after 6:45 pm local time. However, Mercury’s proximity to the horizon may make it difficult to spot, and Venus will set by 7:15 pm, requiring quick observation.
The presence of the moon will further enhance the celestial display over the next few days, adding to the richness of the visible solar system.