Try to get out and see an asteroid tonight. You will need to use binoculars or a telescope as the asteroid will not be visible to the naked eye at magnitude 7. You should see the asteroid moving against the background stars because it is so close to us - closest approach is just 27,700km away at 19.26. Use the Plough as your guide. Look at the stars in the Plough to judge the position of the asteroid at any given time from 21.00 onwards.
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