_Badenia.png) Modelled shape ofBadenia from itslightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | M. F. Wolf |
| Discovery site | Heidelberg Obs. |
| Discovery date | 22 August 1892 |
| Designations | |
| (333) Badenia | |
| Pronunciation | /bəˈdiːniə/ |
Named after | Grand Duchy of Baden (Großherzogtum Baden)[2] |
| A892 QA · 1930 JD 1932 TC · 1936 QQ 1937 VB · 1950 BP1 A895 DC · A911 CA 1892 A | |
| Orbital characteristics[3] | |
| Epoch 31 May 2020 (JD 2459000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 127.45yr (46,551 d) |
| Aphelion | 3.6300AU |
| Perihelion | 2.6314 AU |
| 3.1307 AU | |
| Eccentricity | 0.1595 |
| 5.54 yr (2,023 d) | |
| 20.070° | |
| 0° 10m 40.44s / day | |
| Inclination | 3.7393° |
| 353.16° | |
| 22.785° | |
| Physical characteristics | |
Meandensity | ~1.4 g/cm3[9] |
| 9.862±0.001 h[10][11] | |
| 9.4[1][3] | |
333 Badenia (/bəˈdiːniə/bə-DEE-nee-ə;prov. designation:A892 QAor1892 A) is a largebackground asteroid, approximately 72 kilometers (45 miles) in diameter, located the outer region of theasteroid belt. It was discovered on 22 August 1892, by astronomerMax Wolf at theHeidelberg-Königstuhl State Observatory in southwest Germany.[1] The carbonaceousC-type asteroid has arotation period of 9.9 hours. It was named after the historicalGrand Duchy of Baden that existed until 1918, and where the discovering observatory is located.[2]Badenia was the first asteroid to receive a provisional designation.
Badenia is a non-family asteroid of the main belt'sbackground population when applying thehierarchical clustering method to itsproper orbital elements.[4][5] It orbits the Sun in theouter main-belt at a distance of 2.6–3.6 AU once every 5 years and 6 months (2,023 days;semi-major axis of 3.13 AU). Its orbit has aneccentricity of 0.16 and aninclination of 4° with respect to theecliptic.[3]
In theTholen classification,Badenia is a common carbonaceousC-type asteroid, though with a nosy spectrum (:).[3]
In April 2017, a rotationallightcurve ofBadenia was obtained fromphotometric observations byFrederick Pilcher. Lightcurve analysis gave arotation period of9.862±0.001 hours with a brightness variation of0.24±0.02magnitude (U=3).[10][11]
According to the surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite and theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Badenia measures between 64.01 and 78.51 kilometers in diameter and its surface has analbedo between 0.047 and 0.061.[5][6][7][8] TheCollaborative Asteroid Lightcurve Link adopts the results from IRAS, that is, an albedo of 0.0475 and a diameter of 78.17 kilometers based on anabsolute magnitude of 9.46.[11]
