SkyRef / Meteor showers

The Quadrantids meteor shower

Peaks 01/03 at up to 110 per hour under ideal conditions. Not currently active.

The essentials

Peak01/03
Active12/28–01/12
Peak rate (ZHR)110/hr
Speed41 km/s
Radiant RA15.3h
Radiant Dec+49.5°

Status right now: Not currently active.

What to expect

A sharp peak only a few hours wide, so timing matters more than for any other shower.

The Quadrantids come from asteroid 2003 EH1, and enter the atmosphere at about 41 kilometres per second. That is a middling speed, producing the classic quick streak most people picture.

About that ZHR number

The quoted rate of 110 per hour is the zenithal hourly rate — the count you would get with the radiant directly overhead, under a perfectly dark sky, with no moon. Nobody's actual conditions match that. Real counts are typically a third to a half of the headline figure, and considerably less with a bright moon or from a town.

SkyRef scales the estimate by the real altitude of the radiant from your location and tells you when the moon is going to ruin it, rather than repeating a number you will never see.

How to watch

Do not use a telescope or binoculars — meteors appear all over the sky and you want the widest possible view. Lie back, look roughly halfway up, and give your eyes twenty minutes to adapt. Face away from the moon if it is up. Patience matters more than equipment.

Check tonight's conditions

Open the live sky map →

QuadrantidsLyridsEta AquariidsAlpha CapricornidsSouthern Delta AquariidsPerseidsDraconidsOrionidsSouthern TauridsNorthern TauridsLeonidsGeminidsUrsids