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Staffordshire schoolboy discovers new planet | Staffordshire schoolboy discovers new planet |
(about 3 hours later) | |
A planet 1,000 light-years away has been found by a schoolboy from Staffordshire. | A planet 1,000 light-years away has been found by a schoolboy from Staffordshire. |
Tom Wagg, 17, a student at Newcastle-under-Lyme School, said he was "hugely excited" by his discovery. | Tom Wagg, 17, a student at Newcastle-under-Lyme School, said he was "hugely excited" by his discovery. |
He was 15 years old when he spotted the planet while doing work experience at Keele University and it took two years to prove its existence. | |
The planet does not have a name yet and a competition has been launched to find one. | The planet does not have a name yet and a competition has been launched to find one. |
Keele University's Professor Coel Hellier said Tom looked through an archive of data for "good planet candidates". | Keele University's Professor Coel Hellier said Tom looked through an archive of data for "good planet candidates". |
He searched through images of the night sky looking for tiny dips in light caused by a planet passing in front of its star. | He searched through images of the night sky looking for tiny dips in light caused by a planet passing in front of its star. |
Planet hunting | |
"It was just my third day when I spotted what looked a good candidate, but I had already gone through more than 1,000 sets of data by then," Tom said. | |
"It looks boring, but when you think about what you're actually doing it's amazing really." | |
While Tom hunted for planets, he said many of his friends had been completing very different work experience placements. | |
"They've all been really excited for me," he said. | |
Prof Hellier said follow-up observations had to be carried out by telescopes in Chile to confirm Tom's results. | |
It was then studied by astronomers at the University of Geneva and the University of Liege, to prove that it had the right size and mass to be a planet. | |
Keele University is part of a nationwide collaboration of observatories called the Wide Angle Search for Planets (WASP) and the planet has been given the designation WASP-142b, being the 142nd planet discovered by the group. | |
A competition is now on to name it and Tom said he planned to come up with a suggestion. | |
Analysis | |
Dr David Gregory-Kumar, BBC Midlands Today | |
Tom hasn't seen his planet directly through a telescope. Instead he combed through the data generated by WASP. | |
WASP is a swarm of telescopes that scan the sky several times a night. They build up a picture of how bright each star usually is. But sometimes that brightness dips slightly when a planet passes in between us and the star it is orbiting. | |
What astronomers using WASP then do is comb through the huge amounts of data the telescopes create looking for this tiny change in the brightness of a star. | |
This planet is relatively big, about the size of Jupiter, but astronomers are working hard to find much smaller, more earth-sized planets. | |
One day it may even be possible to find planets and then analyse the composition of their atmosphere. | |
Evidence of water or methane could suggest signs of life, while hydrocarbons might be a sign of pollution and even indicate advanced, industrial, alien life. |