Perseid meteor shower

2018 Aug 12

Dominic Ford – originally published on

The Perseid meteor shower will reach its maximum rate of activity on 13 August 2018. Some shooting stars associated with the shower are expected to be visible each night from 23 Jul to 20 Aug.

The maximum rate of meteors expected to be visible from a dark location is around 80 per hour (ZHR). The Moon will be 2 days old at the time of peak activity, and so will present minimal interference.

The radiant of the Perseid meteor shower is at around right ascension 02h20m, declination +58°, as shown by the green cross on the planetarium above. At midnight, it appears 41° above your north-eastern horizon from London (click to change). All of the meteors will appear to be travelling directly outward from this point, as indicated by the white lines drawn above.

To see the most meteors, the best place to look is not directly at the radiant itself, but at any dark patch of sky which is around 30–40° away from it. It is at a distance of around this distance from the radiant that meteors will show reasonably long trails without being too spread out.

The details of this observing event were provided courtesy of