3103 Eger
Encyclopedia
3103 Eger is an Apollo
and Mars-crosser asteroid
that was discovered in 1982, by Miklós Lovas. It was named after the city of Eger
, Hungary
.
It makes eight approaches to Earth less than 30 Gm (2,700,027 AU) in the 20th and 21st centuries. The last close approach was in August 2006 at 19.2 Gm (1,728,017.28 AU). The next is in August 2011 at 22.9 Gm (2,061,020.61 AU).
3103 Eger is the only asteroid besides 4 Vesta
identified as the parent body for specific meteorites. 4 Vesta is the parent body for Howardite
, Eucrite
, and Diogenite
meteorites, while 3103 Eger is the parent body for Aubrite
meteorites. In this characteristic 3103 Eger is related spectroscopically to the 434 Hungaria
type asteroids, which are a Hirayama-family of orbital types, and E-type asteroid
s which form a spectroscopical type.
Apollo asteroid
The Apollo asteroids are a group of near-Earth asteroids named after 1862 Apollo, the first asteroid of this group to be discovered by Karl Wilhelm Reinmuth...
and Mars-crosser asteroid
Mars-crosser asteroid
A Mars-crosser is an asteroid whose orbit crosses that of Mars. The known numbered Mars-crossers are listed here. They include the two numbered Mars trojans 5261 Eureka and ....
that was discovered in 1982, by Miklós Lovas. It was named after the city of Eger
Eger
Eger is the second largest city in Northern Hungary, the county seat of Heves, east of the Mátra Mountains. Eger is best known for its castle, thermal baths, historic buildings , and red and white wines.- Name :...
, Hungary
Hungary
Hungary , officially the Republic of Hungary , is a landlocked country in Central Europe. It is situated in the Carpathian Basin and is bordered by Slovakia to the north, Ukraine and Romania to the east, Serbia and Croatia to the south, Slovenia to the southwest and Austria to the west. The...
.
It makes eight approaches to Earth less than 30 Gm (2,700,027 AU) in the 20th and 21st centuries. The last close approach was in August 2006 at 19.2 Gm (1,728,017.28 AU). The next is in August 2011 at 22.9 Gm (2,061,020.61 AU).
3103 Eger is the only asteroid besides 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....
identified as the parent body for specific meteorites. 4 Vesta is the parent body for Howardite
Howardite
Howardites are achondritic stony meteorites that originate from the surface of the asteroid 4 Vesta, and as such are part of the HED meteorite group. There are about 200 distinct members known.-Characteristics:...
, Eucrite
Eucrite
Eucrites are achondritic stony meteorites, many of which originate from the surface of the asteroid 4 Vesta and as such are part of the HED meteorite group. They are the most common achondrite group with well over 100 distinct finds at present....
, and Diogenite
Diogenite
Diogenites are a subgroup of the HED meteorite group, a type of achondritic stony meteorites.-Origin and composition:Diogenites originates from deep within the crust of the asteroid 4 Vesta, and as such are part of the HED meteorite group...
meteorites, while 3103 Eger is the parent body for Aubrite
Aubrite
Aubrites are meteorites named for Aubres, a small achondrite meteorite that fell near Nyons, France, in 1836. They are primarily composed of the orthopyroxene enstatite, and are often called enstatite achondrites...
meteorites. In this characteristic 3103 Eger is related spectroscopically to the 434 Hungaria
434 Hungaria
434 Hungaria is a relatively small inner Main belt asteroid. It is classified as an E-type asteroid. It is the namesake for Hungaria asteroids which orbit the sun on the inside of the 1:4 Kirkwood gap, standing out of the core of the main belt....
type asteroids, which are a Hirayama-family of orbital types, and E-type asteroid
E-type asteroid
E-type asteroids are asteroids thought to have enstatite achondrite surfaces. They form a large proportion of asteroids inward of the main belt known as Hungaria asteroids, but rapidly become very rare as the main belt proper is entered. There are, however, some that are quite far from the inner...
s which form a spectroscopical type.
See also
- AubriteAubriteAubrites are meteorites named for Aubres, a small achondrite meteorite that fell near Nyons, France, in 1836. They are primarily composed of the orthopyroxene enstatite, and are often called enstatite achondrites...
- E-type asteroidE-type asteroidE-type asteroids are asteroids thought to have enstatite achondrite surfaces. They form a large proportion of asteroids inward of the main belt known as Hungaria asteroids, but rapidly become very rare as the main belt proper is entered. There are, however, some that are quite far from the inner...
- Hungaria familyHungaria familyThe Hungaria asteroids are a group of asteroids in the asteroid belt that orbit the Sun between 1.78 and 2.00 AU. The asteroids typically have a low eccentricity and an inclination of 16 to 34 degrees....
- (144898) 2004 VD17(144898) 2004 VD17-External links:* *...
- 44 Nysa44 Nysa44 Nysa is a large and very bright main-belt asteroid, and the brightest member of the Nysian asteroid family. It is classified as a rare class E asteroid and is probably the largest of this type .-Discovery:...
- 2867 Šteins2867 Šteins2867 Šteins is a small main-belt asteroid that was discovered in 1969 by N. S. Chernykh. It is named after Kārlis Šteins, a Latvian and Soviet astronomer...