Venus, Mars, Jupiter and Saturn will line up in the sky this week and could stay visible to the naked eye for a number of weeks.
Skygazers will be treated to the sight from Wednesday all the way through to early May, and the four planets will be visible early in the mornings before sunrise.
Experts say the best viewing window is between around 5am and 6am (BST) over the coming days, just after the planets rise above the horizon, but just before the Sun follows after them.
The Moon will also join the line-up on April 23, with a fifth planet – Mercury – becoming visible from June 24.
Despite appearing from Earth to be lined up, the planets will not actually be lined up in space.
Jake Foster, an astronomy education officer at Royal Museums Greenwich, said: “To view this event, all you require is a clear eastern horizon. No specialist viewing equipment is necessary.
“These types of alignments in our skies, sometimes known as planet parades, only occur from our perspective here on the Earth.
“The planets themselves are not physically aligned in space during these events, meaning that the perceived alignment is unique to our perspective as observers on the Earth.
“These events tend to happen once every few years, the last one taking place in 2020.
“This year, we are particularly lucky as we will witness an alignment of five planets visible to the unaided eye on June 24, with Mercury joining the other four visible planets as an added bonus.”
However, Dr Robert Massey, deputy executive director of the Royal Astronomical Society, said spotting Mars and Saturn in this line-up may be particularly difficult.
He told the PA news agency: “This is a nice conjunction, as the brightest naked eye planets are visible together in a line, with Jupiter, Venus, Mars and Saturn from east to west.
“The event is best viewed at dawn, but not too late as the brightening sky will wash out Mars and Saturn in particular.
“From the UK and similar latitudes, and further north, this will be hard to see as the planets are very low down at sunrise and the sky will be very bright by then.
“I’m not confident that Mars and Saturn will be visible at all from here, at least to the naked eye.”
He added: “You can try to spot the planets with binoculars (use an online star chart to work out where to look) but you must only do that before sunrise as looking at the Sun with binoculars or a telescope can cause serious damage to your eyes – as can looking at the Sun with your eyes alone.”
Get more Salisbury news.
You can also like our Facebook page and follow us on Twitter and Instagram to stay up to date, as well as signing up for one of our newsletters.
If you want online news with fewer ads, unlimited access and reader rewards - plus a chance to support our local journalism - find out more about registering or a digital subscription.
Email newsdesk@salisburyjournal.co.uk with your comments, pictures, letters and news stories.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here