(16657) 1993 UB
Encyclopedia
1993 UB is a near-Earth
minor planet
in the Amor group
. It was discovered by Robert H. McNaught
at the Siding Spring Observatory
in Coonabarabran, New South Wales
, Australia, on October 23, 1993.
Near-Earth object
A near-Earth object is a Solar System object whose orbit brings it into close proximity with the Earth. All NEOs have a perihelion distance less than 1.3 AU. They include a few thousand near-Earth asteroids , near-Earth comets, a number of solar-orbiting spacecraft, and meteoroids large enough to...
minor planet
Minor planet
An asteroid group or minor-planet group is a population of minor planets that have a share broadly similar orbits. Members are generally unrelated to each other, unlike in an asteroid family, which often results from the break-up of a single asteroid...
in the Amor group
Amor asteroid
The Amor asteroids are a group of near-Earth asteroids named after the asteroid 1221 Amor. They approach the orbit of the Earth from beyond, but do not cross it. Most Amors do cross the orbit of Mars...
. It was discovered by Robert H. McNaught
Robert H. McNaught
Robert H. McNaught is a Scottish-Australian astronomer at the Research School of Astronomy and Astrophysics of the Australian National University. He has collaborated with David J. Asher of the Armagh Observatory....
at the Siding Spring Observatory
Siding Spring Observatory
Siding Spring Observatory near Coonabarabran, New South Wales, Australia, part of the Research School of Astronomy & Astrophysics at the Australian National University , incorporates the Anglo-Australian Telescope along with a collection of other telescopes owned by the Australian National...
in Coonabarabran, New South Wales
Coonabarabran, New South Wales
Coonabarabran is a town in Warrumbungle Shire in northern New South Wales, Australia. At the 2006 census, the town had a population of 2,609.-History and description:...
, Australia, on October 23, 1993.