Observing

See fragments of Comet Halley light up the night sky this weekend

21 October 2017 Ade Ashford

If skies are clear between midnight and the first glimmer of dawn this weekend, you may get to see up to 20 celestial fireworks per hour from the Orionid meteor shower. While far from the richest of the annual shooting star displays, the Orionids are particularly swift and have their genesis in particles strewn along the orbit of Comet Halley.

News

First evidence of comets orbiting a Sun-like star

19 May 2016 Astronomy Now

An international team of astronomers led by the University of Cambridge have used data from the Atacama Large Millimetre/submillimetre Array (ALMA) to find evidence of ice and comets orbiting nearby Sun-like star HD 181327, which could give a glimpse into how our own solar system developed.

Observing

See the Orionid meteor shower peak 21-23 October

20 October 2015 Astronomy Now

The highlight of October for meteor observers is the Orionid meteor shower, which occurs when the Earth encounters the debris stream of Halley’s Comet. With a broad maximum 21-23 October, peak rates are typically about a quarter of those seen for the Perseids of August. A good percentage of Orionids are bright and leave persistent trains.