(2548) Leloir

Asteroid (2548) Leloir
Properties of the orbit ( animation ) Epoch: July 31, 2016 ( JD 2,457,600.5)
Orbit type	Middle main belt asteroid
Major semi-axis	2.6325 AU
eccentricity	0.1027
Perihelion - aphelion	2.3621 AU - 2.9029 AU
Inclination of the orbit plane	18.1455 °
Length of the ascending node	299.5050 °
Argument of the periapsis	291.9876 °
Time of passage of the perihelion	13th July 2018
Sidereal period	4.27 a
Mean orbital velocity	18.36 km / s
Physical Properties
Medium diameter	10.364 (± 0.134) km
Albedo	0.412 (± 0.045)
Absolute brightness	12.0 mag
history
Explorer	El Leoncito Observatory
Date of discovery	February 16, 1975
Another name	1975 DA , 1949 CE, 1966 BM, 1976 OQ
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items.

(2548) Leloir is an asteroid of the central main belt that was discovered on February 16, 1975 at the El Leoncito Observatory, which is located at the Felix Aguilar Observatory ( IAU code 808) in the El Leoncito National Park, Argentina . The Yale University and Columbia University used the observatory as a branch to the southern sky to watch. Since 1990 it has been called "Observatorio Carlos Cesco".

There had been several sightings of the asteroid before: on February 1 and 3, 1949 at the Royal Observatory of Belgium in Uccle under the provisional designation 1949 CE and on January 20 and 28, 1966 at the observatory on the purple mountain near Nanjing ( 1966 BM).

(2548) Leloir was named on September 18, 1986 after the Argentine biochemist Luis Federico Leloir (1906–1987), who was the first South American to receive the Nobel Prize in Chemistry in 1970 , “for the discovery of sugar nucleotides and their function in the biosynthesis of Carbohydrates ".

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