http://www.telegraph.co.uk/science/space/10462290/Comet-Ison-daylight-sighting-of-once-in-a-lifetime-event-possible.html
Comet Ison: daylight sighting of 'once in a lifetime' event possible
Astronomers who miss 'comet of the century' on its way to the sun could see it in daylight in early December – something that hasn't happened since 1680
Comet Ison: daylight sighting of 'once in a lifetime' event possible
Astronomers who miss 'comet of the century' on its way to the sun could see it in daylight in early December – something that hasn't happened since 1680