4142 Dersu-Uzala
Encyclopedia
4142 Dersu-Uzala
Name
Name Dersu-Uzala
Designation 1981 KE
Discovery
Discoverer Z. Vavrova
Discovery date May 28, 1981
Orbital elements
Epoch
Epoch (astronomy)
In astronomy, an epoch is a moment in time used as a reference point for some time-varying astronomical quantity, such as celestial coordinates, or elliptical orbital elements of a celestial body, where these are subject to perturbations and vary with time...

 October 27, 2007 (JDCT
Julian day
Julian day is used in the Julian date system of time measurement for scientific use by the astronomy community, presenting the interval of time in days and fractions of a day since January 1, 4713 BC Greenwich noon...

 2454400.5)
Eccentricity (e) 0.1509532
Semimajor axis (a) 1.9119255 AU
Astronomical unit
An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance....

Perihelion (q) 1.6233142 AU
Astronomical unit
An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance....

Aphelion (Q) 2.2005368 AU
Astronomical unit
An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance....

Orbital period
Orbital period
The orbital period is the time taken for a given object to make one complete orbit about another object.When mentioned without further qualification in astronomy this refers to the sidereal period of an astronomical object, which is calculated with respect to the stars.There are several kinds of...

 (P)
2.64 a
Julian year (astronomy)
In astronomy, a Julian year is a unit of measurement of time defined as exactly 365.25 days of 86 400 SI seconds each, totaling 31 557 600 seconds. The Julian year is the average length of the year in the Julian calendar used in Western societies in previous centuries, and for which the unit is...

Inclination
Inclination
Inclination in general is the angle between a reference plane and another plane or axis of direction.-Orbits:The inclination is one of the six orbital parameters describing the shape and orientation of a celestial orbit...

 (i)
26.49277°
Longitude of the ascending node
Longitude of the ascending node
The longitude of the ascending node is one of the orbital elements used to specify the orbit of an object in space. It is the angle from a reference direction, called the origin of longitude, to the direction of the ascending node, measured in a reference plane...

 (Ω)
60.71941°
Argument of Perihelion (ω) 55.33803°
Mean anomaly
Mean anomaly
In celestial mechanics, the mean anomaly is a parameter relating position and time for a body moving in a Kepler orbit. It is based on the fact that equal areas are swept at the focus in equal intervals of time....

 (M)
169.35952°

4142 Dersu-Uzala is a main belt asteroid
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 orbital period
Orbital period
The orbital period is the time taken for a given object to make one complete orbit about another object.When mentioned without further qualification in astronomy this refers to the sidereal period of an astronomical object, which is calculated with respect to the stars.There are several kinds of...

 of 965.6169293 days (2.64 years).

The asteroid was discovered on May 28, 1981.

It is named after Dersu Uzala
Dersu Uzala
Dersu Uzala is the title of a 1923 book by the Russian explorer Vladimir Arsenyev.-Plot:Arsenyev's book tells of his travels in the Ussuri basin in the Russian Far East. Dersu was the name of a Nanai hunter who acted as a guide for Arsenyev's surveying crew from 1902 to 1907, and saved them from...

, the main character of the eponymous book by Vladimir Arsenyev
Vladimir Arsenyev
Vladimir Klavdiyevich Arsenyev was a Russian explorer of the Far East who recounted his travels in a series of books - "По Уссурийскому Краю" and "Дерсу Узала" - telling of his military journeys to the Ussuri basin with Dersu Uzala, a native hunter, from 1902 to 1907...

.
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