Occultation of a Bright Star by an Asteroid
These are rare and depend on the observer’s location. According to Unistellar, “Asteroids are small, rocky bodies that orbit the Sun. Occasionally, one of these asteroids will fly in front of a distant star, blocking its light. This event called an occultation, casts a shadow on the Earth that can be recorded by Citizen Astronomers in the shadow’s path.”
If you happen to be in the exact, observable location of this phenomenon, then you’re lucky. Scientists often study these occultations to get a better idea of asteroids and stars (Unistellar).