Amor asteroid

An outer Earth-grazer asteroid is an asteroid that is normally beyond Earth's orbit, but which can get closer to the Sun than Earth's aphelion (1.0167 AU), and not closer than Earth's perihelion (0.9833 AU); i.e., the asteroid's perihelion is between Earth's perihelion and aphelion. Outer Earth-grazer asteroids are split between Amor and Apollo asteroids. Using the definition of Amor asteroids above, "Earth grazers" that never get closer to the Sun than Earth does (at any point along its orbit) are Amors, whereas those that do are Apollos.

To be considered a potentially hazardous asteroid (PHA), an object's orbit must, at some point, come within 0.05 AU of Earth's orbit, and the object itself must be sufficiently large/massive to cause significant regional damage if it impacted Earth.[5] Most PHAs are either Aten asteroids or Apollo asteroids (and thus have orbits that cross the orbit of Earth), but approximately one tenth of PHAs are Amor asteroids. A potentially hazardous Amor asteroid therefore must have a perihelion of less than 1.05 AU. Approximately 20% of the known Amors meet this requirement, and about a fifth of those are PHAs. The fifty known Amor PHAs include the named objects 2061 Anza, 3122 Florence, 3908 Nyx, and 3671 Dionysus.

This is a non-static list of named Amor asteroids.[6]