Today's Image

Visualize the Perseid meteor stream in space

Posted by

and

July 26, 2021

Diagram of Earth orbit with an arc of debris, the Perseid meteor stream, following a narrow elliptical path intersecting it. — Perseid meteor stream visualization. It looks blurry because it’s a screenshot from a video. Be sure to click into the interactive page. It’s awesome! Visualization via Ian Webster.

This visualization uses NASA data to render known Perseid meteoroids as they move through the space of our solar system. What’s a meteoroid? It’s just a bit of debris in space before it has entered Earth’s atmosphere and vaporized, thereby becoming a meteor or fiery streak in our night sky. Meteors originate in the bodies of comets. The Perseids, in particular, come from Comet Swift-Tuttle, which last visited the inner solar system in 1992. Ian Webster developed this visualization of the Perseid meteor stream in space in 2020, using meteor data provided by astronomer Peter Jenniskens. Webster got help from the SETI Institute, too. The goal was to make it easier to understand the natural phenomenon of meteor showers.

What’s so cool about the interactive page of this visualization? It’s always great to have an aid for picturing a three-dimensional aspect of outer space. This visualization is especially effective because it lets you click into the view from various perspectives. For example, the view below is the Perseid meteor stream as seen from Earth; be sure to visit the page to see the meteors coming toward you!

Diagram of extremely oblique Earth orbit with stream of white particles sweeping almost vertically across it. — Perseid meteor stream from Earth’s perspective in space. Click into the interactive page to see the meteors coming toward you. Click the box in the upper left that says “Watch from Earth.” Visualization via Ian Webster.

Bottom line: Two screen shots from Ian Webster and Peter Jenniskens’ wonderful visualization showing Perseid meteoroids in space.

922 Shares

Posted

July 26, 2021

in

Today's Image

Deborah Byrd

View Articles

About the Author:

Deborah Byrd created the EarthSky radio series in 1991 and founded EarthSky.org in 1994. Today, she serves as Editor-in-Chief of this website. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named 3505 Byrd in her honor. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. "Being an EarthSky editor is like hosting a big global party for cool nature-lovers," she says.