The Venus-Jupiter conjuction for 2017 - when two of the brighest planets in the night's sky come together -is taking place on Monday morning.
It is, however, not the first time this celestial event has occurred.
The two planets are actually over 400 million miles apart but will rise within 0.3 degrees of each other at their closest.
In the pre-dawn hours, the two brightest planets in our solar system, Venus and Jupiter, will appear to move past each other forming what looks like a bright double star.
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Coming about 40 minutes before sunrise in the United Kingdom, the two planets will appear very close in the sky, seperated roughly by half the width of the full Moon.
Weather permitting, for those observers who don't have any tall obstructions such as trees or buildings toward the east-northeast, this "double planet" should make for a very striking visual spectacle, no doubt attracting the attention of even those who don't give more than a casual glance at the sky, Space added. For those watching from the UK, Venus will rise at 5:56 am and Jupiter can be seen at 5:58 am. The sun rises at 6:19am, so you'll want to be out by 5am. The planet will be visible for about an hour before the rising sunlight becomes too bright to see the planet.
According to space.com, Jupiter was largely invisible in September as it was too close to the sun's glare.
For context, this is approximately half the diameter of the moon.