BACKGROUND:
3200 Phaethon is an Apollo asteroid which was found to have a diameter of 5 kilometers and a mass of 1.4^10^4 kilograms. (
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3200;cad=1). It follows an elliptical orbit whose path crosses the orbits of Mars, Mercury, Venus, and the Earth, and is categorized as a PHA. Its most recent fly-by was in 2017, while its next isn't until 2026.
Various studies suggest the surface of 3200 Phaethon contains hydrated minerals and hydrated silicates. The asteroid's hydrated minerals may have similar origins to those of the main belt asteroids. Phaethon is likely an "activated asteroid" that traveled to the NEO population from the main belt. The presence of hydrated silicates suggests that there used to be liquid water on the asteroid. Now, some ice remains inside the asteroid and is exposed when the object impacts small bodies. This creates comet-like properties. Phaethon is a B-type asteroid, which is a relatively rare form of carbonaceous asteroids. (The Nature of (3200) Phaethon)
During a 9-day time span, Phaethon will be brighter and easier to see. The dimmest objects to see with a naked eye are about 6.5+, during those nine days 3200 Phaethon will obtain a 10.7+ magnitude. This is because of the time the elliptical orbit hits the earth. Classified as a B-type asteroid because it is mostly composed of dark material. Resembles a comet because of its tail of debris but is known as a hybrid between an asteroid and comet. (
https://www.space.com/39047-asteroid-3200-phaethon-close-brush-with-earth.html) Also, synthetic tracking has been able to calculate the days in which this asteroid is the brightest and even more visible to the naked eye.