Mercury, Jupiter, Venus, Uranus, Mars, and the Moon aligned in an arc across the evening sky on Monday, with some visible to the naked eye, APA reports citing BBC.
This is often called "a planetary parade" and was visible after sunset in the west.
A good view of the horizon and clear skies offered the best chance of spotting the alignment.
Last summer Mercury, Venus, Mars, Jupiter, and Saturn came together in a rare planetary conjunction.
The best shot at spotting the planets on Monday was away from any bright city lights, somewhere with a clear, unobstructed view.
You needed to be observing early in the evening because Mercury and Jupiter quickly disappeared over the horizon.
Some of the best views were from northern parts of Scotland and its islands because of clear skies.
Prof Catherine Heymans, the Astronomer Royal for Scotland, watched the spectacle from Edinburgh's Portobello beach.
"Planet spotting on a crystal clear night along with so many other planetary parade enthusiasts was an absolute delight!" she told the BBC.