Meteor Shower Tracker
Compare major meteor showers, countdown to peaks, and estimate radiant visibility.
How to use this tracker
ZHR is an ideal dark-sky maximum. For real observing, find a dark place, allow your eyes to adapt, and look away from the Moon.
Meteor-shower calendars are only the starting point. The live tool adds your local radiant altitude, darkness and lunar conditions so an annual peak can be interpreted for the sky you will actually observe.
What ZHR means—and what it does not mean
The zenithal hourly rate is a way to compare meteor-shower activity under idealized conditions: a dark sky, a radiant at the zenith and good visibility. It should not be read as “the number of meteors I will see in one hour.” Real counts are normally lower when the radiant is low, the Moon is bright, the sky is light-polluted or part of the sky is blocked.
Why the radiant changes your local experience
Shower meteors travel on nearly parallel paths through space, but perspective makes their trails appear to diverge from a point called the radiant. As Earth rotates, the radiant rises and sets differently for observers at different latitudes.
You do not need to stare directly at the radiant. Meteors can appear across a broad area of sky, and longer trails may be seen some distance away from the radiant.
Peak time, local time and Moonlight
A shower peak is usually specified in a universal time reference, while your best viewing may occur in a different local-hour window. The tracker converts the relevant geometry for your location. It also shows lunar context because a high, bright Moon can substantially reduce the number of faint meteors visible to the eye.
Activity is not an on/off switch at the peak. Many showers remain active across a wider date range, with rates rising and falling around the maximum.
How to observe comfortably
Choose a safe dark location with a wide sky view, avoid direct lights and allow your eyes to adapt. A reclining chair can make longer sessions easier. Binoculars and telescopes are usually not helpful for general meteor watching because their field of view is too narrow.
Science source
NASA explains the origin and observing basics of annual showers in its Meteor Showers guide. The tracker combines a curated shower calendar with local astronomical calculations; it does not promise a specific personal meteor count.
Frequently asked questions
Will I see the listed ZHR from my backyard?
Usually not as an exact count. ZHR assumes ideal geometry and dark-sky conditions.
Should I look directly at the radiant?
No. Keep a broad view of the sky; meteors can appear far from the radiant.
Can I watch before or after the peak date?
Often yes. Many showers are active for days or weeks around their maximum.
Do I need a telescope?
No. Meteor observing is generally best with the unaided eye and a wide field of view.
Which meteor shower is active tonight?
Annual meteor showers occur when Earth moves through streams of dust and small particles left along the orbits of comets or, in some cases, asteroids. The tracker above compares the major recurring showers, their typical active periods and peak timing, then adds local sky geometry so you can judge whether the radiant is favorably placed from your location.
What ZHR really means
The zenithal hourly rate, or ZHR, is a standardized idealized rate used to compare meteor-shower activity. It assumes a dark sky, the radiant at the zenith and good observing conditions. It is not a promise that one observer will count that many meteors in an hour. Real rates are reduced by low radiant altitude, Moon brightness, cloud, haze, light pollution and limited sky visibility.
Why radiant height matters
A shower's radiant is the point from which its meteors appear to diverge because of perspective. When the radiant is very low, much of the debris geometry is unfavorable from your location. As the radiant climbs, the potential number of observable shower meteors generally improves. You do not need to stare directly at the radiant; meteors often look longer and more dramatic farther away from it.
Moonlight and darkness
Bright moonlight can hide faint meteors, especially during showers with many weak streaks. Use Sky Tonight to compare the local darkness window and lunar illumination near the expected peak. NASA's meteor shower guide provides additional background on why recurring showers occur.
How to watch a meteor shower
Choose the darkest open site you can safely access, avoid looking at bright phone screens, allow at least 20–30 minutes for your eyes to adapt and watch a broad area of sky. No telescope is required because a telescope shows only a tiny field of view. If auroral activity is also possible at your latitude, you can check Aurora Forecast Tonight before heading outside.
Frequently asked questions
Do meteors come from the radiant itself?
The radiant is a perspective effect. The particles enter the atmosphere along nearly parallel paths, but they appear to diverge from one point in the sky.
Can I see meteors before or after the exact peak?
Often yes. Many showers remain active for days or weeks, although the highest activity tends to cluster around the peak period.