(4140) Branham

Asteroid (4140) Branham
Properties of the orbit ( animation ) Epoch: May 31, 2020 ( JD 2,459,000.5)
Orbit type	Main belt
Major semi-axis	2,645 AU
eccentricity	0.12
Perihelion - aphelion	2.327 AU - 2.963 AU
Inclination of the orbit plane	7.7 °
Length of the ascending node	127.1 °
Argument of the periapsis	219.9 °
Time of passage of the perihelion	March 6, 2018
Sidereal period	5.21 a
Mean orbital velocity	17.1 km / s
Physical Properties
Medium diameter	(33.7 ± 0.1) km
Albedo	0.05
Absolute brightness	11.4 mag
history
Date of discovery	November 11, 1976
Another name	1976 VA , 1929 RW, 1952 BZ, 1986 PL ₂ , 1989 CJ
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.

(4140) Branham is a main belt asteroid that was discovered on November 11, 1976 at Argentina's El Leoncito Observatory, a branch of the Felix Aguilar Observatory . Subsequently, the asteroid could already be detected on recordings made in 1929 at the Crimean Observatory in Simejis and in 1952 at the McDonald Observatory in Texas .

The asteroid was named after the American astronomer Richard L. Branham, Jr. , who deals with meridian astronomy and celestial mechanics . He worked on the passage instrument of the United States Naval Observatory in Washington, DC from 1968 to 1982 , then went to Argentina and became director of the Yale-Columbia Southern Station in Leoncito.

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