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The asteroid known as 3200 Phaethon will zoom past Earth on December 17 which NASA has described as a “potentially hazardous asteroid”.
At five kilometres wide, the asteroid is one of the largest ever discovered in our solar system and is approximately half the size of the space rock which helped to wipe out the dinosaurs 66 million years ago.
Asteroid 3200 Phaethon will zoom past Earth at a distance of just 0.069 astronomical units (AU) – one AU is the distance between the Earth and the sun – or 6.4 million miles and in astronomical terms is practically a hair’s width.
The space rock has been named after the son of the Greek sun god Helios who pulled the Sun across the sky.
According to Greek legend, Phaethon attempted this but lost control of the Sun and almost destroyed Earth.
Astronomers say the asteroid used to be much bigger, but as it has passed near the Sun many times, pieces of it have crumbled away.
The asteroid will also bring with it the Germinid meteor shower.
The best time to see the Geminids will be between 1am and 2am on Wednesday and Thursday.
Robin Scagell, vice-president of the Society for Popular Astronomy, said: “They’ll be very good because there’s virtually no moonlight getting in the way at all.
“Weather permitting, it could be one of the best displays we’ve had for a long time.
“The last one like this was in 2014, when there was very little moon.
“On average, you should see one or two meteors a minute, maybe 90 per hour under really good conditions.”
The shooting stars will appear to emerge from a “radiant” point in the constellation of Gemini, the Twins, in the south-east.
However, looking towards the constellation of Orion and the nearby Pleiadies or “Seven Sisters” star cluster may provide the best view, says Mr Scagell.