When you see a "star" falling from the sky, it is most likely not an actual star, but a phenomenon known as a "shooting star" or a meteor. Meteors are small particles, often no larger than a grain of sand or a pebble, that enter Earth's atmosphere from space. As they travel through the atmosphere, they heat up due to the friction with the air, causing them to glow brightly. This glowing streak of light is what we perceive as a shooting star.
The direction from which a shooting star appears to originate is called the radiant point. Meteor showers, such as the Perseids or Leonids, are named after the constellation in which their radiant point is located. For example, the Perseid meteor shower's radiant point is in the constellation Perseus. So, if you see a shooting star falling from the right-hand side of the sky, it could mean that the radiant point of that particular meteor is located in that general direction or constellation.
It's important to note that shooting stars are relatively common occurrences, and you can see them on any clear night if you have dark skies away from light pollution. Meteor showers, on the other hand, are more predictable and tend to peak on specific dates throughout the year when Earth passes through the trail of debris left by comets or asteroids. During meteor showers, the number of visible shooting stars can significantly increase, providing a more impressive display in the night sky.