| Discovery[1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 29 January 1932 |
| Designations | |
| (1216) Askania | |
Named after | Askania Werke (German manufacturer)[2] |
| 1932 BL · 1952 DH 1984 YY6 · A909 GF | |
| main-belt · (inner) Flora[3][4] · background[5] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 110.32 yr (40,295 days) |
| Aphelion | 2.6325AU |
| Perihelion | 1.8328 AU |
| 2.2327 AU | |
| Eccentricity | 0.1791 |
| 3.34yr (1,219 days) | |
| 134.38° | |
| 0° 17m 43.44s / day | |
| Inclination | 7.5997° |
| 121.60° | |
| 144.64° | |
| Physical characteristics | |
| 7.21±0.38 km[6] 9.62±2.53 km[7] 10.08±0.54 km[8] 10.533±0.089 km[6] | |
| 6.536±0.003 h[9] | |
| 0.064±0.009[6] 0.070±0.008[8] 0.136±0.014[6] 0.15±0.09[7] 0.24(assumed)[3] | |
| Tholen =S[1] · S[3] B–V = 0.903[1] | |
| 13.49[1][3][6][7][8] | |
1216 Askania, provisional designation1932 BL, is a stony Florianasteroid from the inner regions of theasteroid belt, approximately 9 kilometers in diameter. It was discovered on 29 January 1932, by German astronomerKarl Reinmuth atHeidelberg Observatory in southwest Germany.[10] It was named after the companyAskania Werke, a German manufacturer of precision instruments.[2]
Askania orbits the Sun in theinner main-belt at a distance of 1.8–2.6 AU once every 3 years and 4 months (1,219 days). Its orbit has aneccentricity of 0.18 and aninclination of 8° with respect to theecliptic.[1] The asteroid is a member of theFlora family, one of the largestfamilies in the asteroid belt.[4][a] Conversely, it is considered abackground asteroid when applying thehierarchical clustering method to it proper orbital elements.[5]
The body'sobservation arc begins with its official discovery observation at Heidelberg in 1932. In July 1906, a firstprecovery was taken at theLowell Observatory, and in April 1909, the asteroid was first identified at the discovering observatory asA909 GF.[10]
Theminor planet was named after "Askania Werke AG", a manufacturer of optical and astronomical instruments in Berlin(also seeCinetheodolite).[1] The company went on to develop theauto pilot of the V-1 bomb in the following years.[11] The official naming citation was published byPaul Herget inThe Names of the Minor Planets in 1955 (H 112).[2]
In theTholen classification,Askania is a common stonyS-type asteroid.[1]
Lightcurve observations ofAskania at the Menke Observatory in July 2006, show a well-definedperiodicity of6.536 hours, during which time the brightness of the body varies by0.30magnitude (U=3-).[9]
According to the surveys carried out by the JapaneseAkari satellite, and theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Askania measures between 7.21 and 10.533 kilometers in diameter and its surface has analbedo between 0.064 and 0.15.[6][7][8]
TheCollaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from8 Flora, an stony asteroid and largest member and namesake of the Flora family – and calculates a diameter of 5.44 kilometers with anabsolute magnitude of 13.49.[3][a]
