NASA has some great advice on how to photograph meteors.
The agency says you need to be in a dark spot, have patience, and it’s best to use a DSLR camera on a tripod with a shutter release button to avoid shaking the camera, so the shot stays steady.
Then, there is a bit of maths involved to make calculate expsoure times.
NASA’s advice adds: “As Earth rotates, the stars in the sky appear to move, and if your shutter is open long enough, you might capture some of that movement. If you want to avoid apparent star movement, you can follow the 500 Rule.
“Take 500 and divide it by the length in millimeters of your lens. The resulting number is the length of time in seconds that you can keep your shutter open before seeing star trails.
“For example, if you’re using a 20 mm lens, 25 seconds (500 divided by 20) is the longest you can set your exposure time before star trails start to show up in your images.”
