110 Lydia
Encyclopedia
110 Lydia is a quite large main-belt asteroid
with an M-type spectrum
, which may contain nickel
-iron
. The asteriod has a fairly circular orbit around the sun. The Lydia asteroid family is named after it. It was discovered by A. Borrelly on April 19, 1870. It was named for the Asia Minor country populated by Phrygians.
In the late 1990s, a network of astronomers worldwide used lightcurves to derive spin states and shape models of 10 new asteroids, including (110) Lydia.
Lydia occulted
a dim star
on September 18, 1999.
Asteroid
Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...
with an M-type spectrum
M-type asteroid
M-type asteroids are asteroids of partially known composition; they are moderately bright . Some, but not all, are made of nickel-iron, either pure or mixed with small amounts of stone. These are thought to be pieces of the metallic core of differentiated asteroids that were fragmented by impacts,...
, which may contain nickel
Nickel
Nickel is a chemical element with the chemical symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile...
-iron
Iron
Iron is a chemical element with the symbol Fe and atomic number 26. It is a metal in the first transition series. It is the most common element forming the planet Earth as a whole, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust...
. The asteriod has a fairly circular orbit around the sun. The Lydia asteroid family is named after it. It was discovered by A. Borrelly on April 19, 1870. It was named for the Asia Minor country populated by Phrygians.
In the late 1990s, a network of astronomers worldwide used lightcurves to derive spin states and shape models of 10 new asteroids, including (110) Lydia.
Lydia occulted
Occultation
An occultation is an event that occurs when one object is hidden by another object that passes between it and the observer. The word is used in astronomy . It can also refer to any situation wherein an object in the foreground blocks from view an object in the background...
a dim star
Star
A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...
on September 18, 1999.