Question 1

What is a meteor shower?

Accepted Answer

A meteor shower occurs when Earth passes through a trail of debris left by a comet (or, in a few cases, an asteroid). As the particles enter the atmosphere at high speed, they burn up and create streaks of light. They appear to radiate from a single point in the sky called the radiant — which is how showers get their names (Perseids radiate from Perseus, Geminids from Gemini, etc.).

Question 2

What's the best time to watch meteor showers?

Accepted Answer

After midnight local time, when your location rotates into the direction Earth is traveling. This puts more debris in front of you rather than behind. Peak rates typically occur in the pre-dawn hours (2–5am). Find a dark spot away from city lights, lie flat on your back, and let your eyes adjust for 20–30 minutes. No telescope needed.

Question 3

Do I need a telescope to watch meteor showers?

Accepted Answer

No — binoculars and telescopes actually make it harder to watch because they narrow your field of view. Meteors can appear anywhere in the sky. Your best tool is your naked eye, plenty of dark sky, and patience.

Question 4

What is ZHR?

Accepted Answer

ZHR (zenithal hourly rate) is the theoretical number of meteors a single observer could see per hour under perfect conditions — perfectly dark sky, radiant directly overhead. Real-world rates are typically 50–70% of ZHR due to light pollution, atmospheric conditions, and the radiant not being at zenith. The Perseids (ZHR ~100) might realistically give 40–70 meteors per hour from a dark location.

Question 5

How much does light pollution affect viewing?

Accepted Answer

Significantly. Under city skies (Bortle Class 7–9), you might see 10–20% of theoretical meteor rates. Suburban skies (Class 5–6) give 30–50%. Rural or dark-sky sites (Class 1–4) give the closest to theoretical ZHR. Even from a suburb, the brightest fireballs will still be visible.

Question 6

Which meteor shower is the best?

Accepted Answer

The Geminids (December 14) are widely considered the best of the year — high ZHR, slow colorful meteors, and the radiant rises early so you don't have to stay up until 3am. The Perseids (August 12) are the most popular because they occur in summer's comfortable temperatures. The Leonids (November 17) occasionally produce rare storms of thousands per hour in peak years.

Question 7

Can I photograph meteor showers?

Accepted Answer

Yes — a camera on a tripod with a wide-angle lens (14–24mm), ISO 1600–3200, aperture f/2.8 or wider, and 15–25 second exposures. Point toward the radiant constellation but not directly at it (meteors near the radiant appear shorter). Use an intervalometer to take continuous exposures and stack the best frames in post.

Question 8

What if the moon is bright?

Accepted Answer

A bright moon washes out fainter meteors significantly. On bright-moon nights, focus on the brightest shower (Perseids or Geminids) when they're at peak. Position yourself so the moon is behind your head or blocked by a building. Bright fireballs (magnitude -1 or brighter) will still punch through moonlight.

Eta Aquariids active now in Cupertino, CA — 50 meteors/hr at peak

Coming Up

FAQ

Nearby Cities

Eta Aquariids active now in Cupertino, CA — 50 meteors/hr at peak

Coming Up

FAQ

Nearby Cities