| Discovery[1] | |
|---|---|
| Discovered by | Z. Moravec |
| Discovery site | Kleť Obs. |
| Discovery date | 16 January 1996 |
| Designations | |
| (7796) Járacimrman | |
| Pronunciation | Czech pronunciation:[ˈjaːratsɪmr̩man] |
Named after | Jára Cimrman[2] (Fictional Czech inventor, composer, writer, poet, and the teacher of the nation.) |
| 1996 BG · 1973 YE3 1990 VG | |
| main-belt · (middle) Adeona[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 43.02 yr (15,712 days) |
| Aphelion | 3.0429AU |
| Perihelion | 2.2879 AU |
| 2.6654 AU | |
| Eccentricity | 0.1416 |
| 4.35yr (1,589 days) | |
| 340.60° | |
| 0° 13m 35.4s / day | |
| Inclination | 12.811° |
| 93.831° | |
| 41.775° | |
| Physical characteristics | |
| Dimensions | 11.312±0.313 km[4] |
| 0.055±0.011[4] | |
| 13.4[1] | |
7796 Járacimrman (Czech pronunciation:[ˈjaːratsɪmr̩man]) is a dark Adeonianasteroid orbiting in the central region of theasteroid belt, approximately 11 kilometers in diameter. Discovered byZdeněk Moravec at theKleť Observatory in 1996, it was later named afterJára Cimrman, a Czech fictional character.[2]
Járacimrman was discovered byZdeněk Moravec at theKleť Observatory in the Czech Republic, on 16 January 1996 and was initially designated1996 BG.[5] Observations continued until April 1996, and then again between June and July 1997. The asteroid was later determined to be alost asteroid which had previously been observed twice: at theBrera-Merate Observatory in northernItaly on 12 December 1973, and atMount Stromlo Observatory, near Canberra, Australia, on 8 and 9 July 1990.
The asteroid is a member of theAdeona family (505), a largefamily of carbonaceous asteroids.[3]
In 1997,Járacimrman'sorbit was calculated more precisely by additional observatories and it could therefore be numbered as asteroid 7796, the 312th recognized (numbered) asteroid discovered at the Kleť Observatory. Moravec suggested naming it after the fictional Czech polymathJára Cimrman.
According to the survey carried out by NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission,Járacimrman measures 11.312 kilometers in diameter and its surface has analbedo of 0.055,[4] which is typical for carbonaceousC-type asteroids. However, no spectral data is available for the asteroid, thus neither its chemical nor mineralogical composition is currently known. In addition, no rotationallightcurve has been obtained ofJáracimrman as of 2017.[6]
The citation accompanying the suggestion said: "Named for Jára Cimrman, a fictitious Czech genius. An analogue toLeonardo da Vinci, he was a playwright, composer, poet, painter, versatile scientist, inventor, polar explorer, sportsman, first man on the moon, etc. Although his name is not mentioned in any encyclopedia, his work is explored at the Jára Cimrman Theatre inPrague. This theatre is headed by the famous cimrmanologistsZ. Svěrák andL. Smoljak, who endorsed the name proposal."[2] The name was approved byInternational Astronomical Union (IAU)Committee on Small Body Nomenclature and published on 11 February 1998 (M.P.C. 31298).[7]
