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The zenithal hourly rate could be close to 120 meteors per hour, though this peak lasts only a couple of hours.

The group predicts a zenithal hourly rate of about 90 shooting stars around the peak.

When drawing up a map, a cartographer must choose between zenithal, gnomonic, stereographic, orthographic, globular, conical, cylindrical or sinusoidal modes of projection — each of which brings with it as many disadvantages as benefits.

At peak, the zenithal hourly rate is expected to be about 120 shooting stars an hour, according to the International Meteor Organization.

A thick fog came down on us, with zenithal aurora borealis, the electric action of which threw out every compass, standard and otherwise, on board.