Mercury. But not all of them will be visible to the naked eye. You'll need high-powered binoculars or a telescope to see Neptune and Uranus. Saturn may be difficult to see since it will be ...
A spectacular line-up of seven planets will be visible under UK skies during peak conditions, experts say - and the rare 'planetary parade' won't be seen again until 2040 ...
Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.