7440 Závist, provisional designation , is a stony

asteroid An asteroid is a minor planet of the inner Solar System. Sizes and shapes of asteroids vary significantly, ranging from 1-meter rocks to a dwarf planet almost 1000 km in diameter; they are rocky, metallic or icy bodies with no atmosphere. ...

from the middle region of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 1 March 1995, by Czech astronomer Miloš Tichý at

Kleť Observatory Kleť Observatory ( cz, Hvězdárna Kleť; obs. code: 046) is an astronomical observatory in the Czech Republic. It is situated in South Bohemia, south of the summit of Mount Kleť, near the town of České Budějovice. Constructed in 1957, t ...

in South Bohemia. The asteroid was named for the Celtic '' Oppidum Závist''.

Orbit and classification

''Závist'' orbits the Sun in the

central Central is an adjective usually referring to being in the center of some place or (mathematical) object. Central may also refer to: Directions and generalised locations * Central Africa, a region in the centre of Africa continent, also known as ...

main-belt at a distance of 2.2–3.0 AU once every 4 years and 2 months (1,520 days). Its orbit has an eccentricity of 0.17 and an inclination of 11 ° with respect to the ecliptic. The first

precovery In astronomy, precovery (short for pre-discovery recovery) is the process of finding the image of an object in images or photographic plates predating its discovery, typically for the purpose of calculating a more accurate orbit. This happens mos ...

was taken at

Palomar Observatory Palomar Observatory is an astronomical research observatory in San Diego County, California, United States, in the Palomar Mountain Range. It is owned and operated by the California Institute of Technology (Caltech). Research time at the observat ...

in 1980, extending the asteroid's observation arc by 15 years prior to its discovery.

Physical characteristics

Rotation period

A rotational lightcurve was obtained from photometric observations made at the U.S.

Palomar Transient Factory The Palomar Transient Factory (PTF, obs. code: I41), was an astronomical survey using a wide-field survey camera designed to search for optical transient and variable sources such as variable stars, supernovae, asteroids and comets. The projec ...

in September 2010. It gave a

rotation period The rotation period of a celestial object (e.g., star, gas giant, planet, moon, asteroid) may refer to its sidereal rotation period, i.e. the time that the object takes to complete a single revolution around its axis of rotation relative to the ...

of hours with a brightness amplitude of 0.55 in magnitude ().

Diameter and albedo

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, ''Závist'' measures 5.05 kilometers in diameter and its surface has an exceptionally high albedo of . The ''Collaborative Asteroid Lightcurve Link'' assumes a standard albedo for stony asteroids of 0.20 and calculates a nearly identical diameter of 5.07 kilometers with an absolute magnitude of 13.84.

Naming

This minor planet was named for the '' Oppidum Závist'' ( Oppidum Závist), a Celtic settlement south of Prague in

Bohemia Bohemia ( ; cs, Čechy ; ; hsb, Čěska; szl, Czechy) is the westernmost and largest historical region of the Czech Republic. Bohemia can also refer to a wider area consisting of the historical Lands of the Bohemian Crown ruled by the Bohem ...

. The ancient ruins are located on a hill above Vltava river ''(also see the minor planets 2367 Praha and

2123 Vltava 2123 Vltava, provisional designation , is a stony Koronian asteroid from the outer region of the asteroid belt, approximately 15 kilometers in diameter. It was discovered on 22 September 1973, by Soviet–Russian astronomer Nikolai Chernykh at the ...

)''. The site consists of two parts named "Hradiště" and "Šance". The settlement existed between the 6th century BC and 1st century AD, and represents part of the most outstanding remnants of known Celtic history in the Czech Republic, especially its ramparts and moats, as well as its acropolis. The official naming citation was published by the

Minor Planet Center The Minor Planet Center (MPC) is the official body for observing and reporting on minor planets under the auspices of the International Astronomical Union (IAU). Founded in 1947, it operates at the Smithsonian Astrophysical Observatory. Function ...

on 4 May 1999 ().

References

External links

Asteroid Lightcurve Database (LCDB)
query form

)
Dictionary of Minor Planet Names
Google books

– Observatoire de Genève, Raoul Behrend

– Minor Planet Center * * {{DEFAULTSORT:Zavist 007440 Discoveries by Miloš Tichý Named minor planets 19950301