| Discovery[1] | |
|---|---|
| Discovered by | M. Tichý |
| Discovery site | Kleť Obs. |
| Discovery date | 1 March 1995 |
| Designations | |
| (7440) Závist | |
Named after | Oppidum Závist (Celticoppidum)[2] |
| 1995 EA · 1980 PL4 | |
| main-belt · (middle) | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 35.94 yr (13,128 days) |
| Aphelion | 3.0137AU |
| Perihelion | 2.1599 AU |
| 2.5868 AU | |
| Eccentricity | 0.1650 |
| 4.16yr (1,520 days) | |
| 185.65° | |
| 0° 14m 12.84s / day | |
| Inclination | 10.967° |
| 147.88° | |
| 319.65° | |
| Physical characteristics | |
| Dimensions | 5.05±0.61 km[3] 5.07 km(calculated)[4] |
| 7.4365±0.0023h[5] | |
| 0.20(assumed)[4] 0.363±0.094[3] | |
| S[4] | |
| 13.4[1] · 13.84[4] · 13.2[3] · 13.390±0.005(R)[5] · 13.73±0.36[6] | |
7440 Závist, provisional designation1995 EA, is a stonyasteroid from the middle region of theasteroid belt, approximately 5 kilometers in diameter. It was discovered on 1 March 1995, by Czech astronomerMiloš Tichý atKleť Observatory in South Bohemia.[7] The asteroid was named for the CelticOppidum Závist.[2]
Závist orbits the Sun in thecentral main-belt at a distance of 2.2–3.0 AU once every 4 years and 2 months (1,520 days). Its orbit has aneccentricity of 0.17 and aninclination of 11° with respect to theecliptic.[1] The firstprecovery was taken atPalomar Observatory in 1980, extending the asteroid'sobservation arc by 15 years prior to its discovery.[7]
A rotationallightcurve was obtained fromphotometric observations made at the U.S.Palomar Transient Factory in September 2010. It gave arotation period of7.4365±0.0023 hours with a brightness amplitude of 0.55 inmagnitude (U=2).[5]
According to the survey carried out by NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission,Závist measures 5.05 kilometers in diameter and its surface has an exceptionally highalbedo of0.363±0.094.[3] TheCollaborative Asteroid Lightcurve Link assumes a standard albedo forstony asteroids of 0.20 and calculates a nearly identical diameter of 5.07 kilometers with anabsolute magnitude of 13.84.[4]
Thisminor planet was named for theOppidum Závist (Oppidum Závist), a Celtic settlement south of Prague inBohemia.[2]
The ancient ruins are located on a hill above Vltava river(also see the minor planets2367 Praha and2123 Vltava). 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.[2] The official naming citation was published by theMinor Planet Center on 4 May 1999 (M.P.C. 34625).[8]
