(237442) 1999 TA10
Encyclopedia
, provisionally known
as 1999 TA10, is a near-Earth object
(NEO) from the Amor asteroid
group. It is suspected of being an inner fragment of the differentiated asteroid 4 Vesta
.
Given an absolute magnitude (H) of 17.9, and that the albedo is unknown, this NEO could vary from 500 to 1500 meters in diameter.
was discovered on 5 October 1999 at apparent magnitude
17.7, when it was only 0.39 AU
from the Earth. In 2010, it came within 0.3 AU of the Earth. During the 2010 close approach, NASA Infrared Telescope Facility (NASA IRTF) studies suggested that originated from the interior of Vesta. The next close approach will be in 2023. In 2086, it will come within 0.017 AU of Mars
.
Provisional designation in astronomy
Provisional designation in astronomy is the naming convention applied to astronomical objects immediately following their discovery. The provisional designation is usually superseded by a permanent designation once a reliable orbit has been calculated...
as 1999 TA10, is a near-Earth object
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...
(NEO) from the Amor asteroid
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...
group. It is suspected of being an inner fragment of the differentiated asteroid 4 Vesta
4 Vesta
Vesta, formally designated 4 Vesta, is one of the largest asteroids, with a mean diameter of about . It was discovered by Heinrich Wilhelm Olbers on March 29, 1807, and is named after the Roman virgin goddess of home and hearth, Vesta....
.
Given an absolute magnitude (H) of 17.9, and that the albedo is unknown, this NEO could vary from 500 to 1500 meters in diameter.
was discovered on 5 October 1999 at apparent magnitude
Apparent magnitude
The apparent magnitude of a celestial body is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere...
17.7, when it was only 0.39 AU
Astronomical unit
An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance....
from the Earth. In 2010, it came within 0.3 AU of the Earth. During the 2010 close approach, NASA Infrared Telescope Facility (NASA IRTF) studies suggested that originated from the interior of Vesta. The next close approach will be in 2023. In 2086, it will come within 0.017 AU of Mars
Mars
Mars is the fourth planet from the Sun in the Solar System. The planet is named after the Roman god of war, Mars. It is often described as the "Red Planet", as the iron oxide prevalent on its surface gives it a reddish appearance...
.
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris