This is due to the fact that the fireballs originate from larger particles of cometry material. Fireballs are also brighter, with magnitudes of brighter than negative three. Earth grazers can have meteors that streak close to the horizon and are known for their long and colorful tails. The Leonids, named after the constellation Leo, are best viewed starting at about midnight local time. Find an area well away from the city or streetlights