| Discovery[1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 8 January 1930 |
| Designations | |
| (1152) Pawona | |
Named after | Johann Palisa andMax Wolf (minor planet discoverers)[2] |
| 1930 AD · 1926 AK 1942 GE1 · 1942 GY 1969 MD · A924 QA | |
| main-belt · Vestian[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 92.61 yr (33,825 days) |
| Aphelion | 2.5288AU |
| Perihelion | 2.3256 AU |
| 2.4272 AU | |
| Eccentricity | 0.0419 |
| 3.78yr (1,381 days) | |
| 356.07° | |
| 0° 15m 38.16s / day | |
| Inclination | 5.0797° |
| 331.91° | |
| 218.56° | |
| Physical characteristics | |
| Dimensions | 15.69±1.0 km[4] 15.90 km(derived)[3] 16.35±0.31 km[5] 17.130±0.115 km[6] 18.826±0.090 km[7] |
| 3.41500±0.00005h[8] 3.4151±0.0009 h[9] 3.4154±0.0001 h[8] 3.418±0.005 h[10][a] 3.425±0.001 h[11] | |
| 0.1529±0.0174[7] 0.203±0.004[6] 0.205±0.009[5] 0.2167±0.030[4] 0.2782(derived)[3] | |
| SMASS =Sl[1] · S[3] | |
| 11.0[3] · 11.18±0.01[12] · 11.2[1] · 11.30[4][5][7] | |
1152 Pawona, provisional designation1930 AD, is a stony Vestianasteroid from the inner regions of theasteroid belt, approximately 16 kilometers in diameter. Discovered byKarl Reinmuth atHeidelberg Observatory in 1930, the asteroid was named in honor of astronomersJohann Palisa andMax Wolf.[13]
Pawona was discovered on 8 January 1930, by German astronomerKarl Reinmuth at theHeidelberg-Königstuhl State Observatory in southwest Germany.[13] It was independently discovered by Italian astronomerLuigi Volta at theObservatory of Turin on 19 January 1930, and byGrigory Neujmin at theSimeiz Observatory on the Crimean peninsula on 21 January 1930.[2] TheMinor Planet Center, however, only acknowledges the first discoverer.[13]
The asteroid was first identified asA924 QA atVienna Observatory in August 1924. The body'sobservation arc begins with its identification as1926 AK at Heidelberg in January 1926, almost 4 years prior to its official discovery observation.[13]
Pawona is a supposed member of the stonyVesta family (401), named after4 Vesta and the main belt's second-largestasteroid family by number.[3] It orbits the Sun in theinner main-belt at a distance of 2.3–2.5 AU once every 3 years and 9 months (1,381 days). Its orbit has aneccentricity of 0.04 and aninclination of 5° with respect to theecliptic.[1]
In theSMASS classification,Pawona is an Sl-subtype, that transitions from the common stonyS-type to the rareL-type asteroids.[1]
Several rotationallightcurves ofPawona have been obtained from photometric observations since 2002. Analysis of these lightcurves gave a well-definedrotation period between 3.415 and 3.425 hours with a brightness amplitude of 0.16 to 0.26magnitude (U=3/3/3/3/3).[8][9][10][11][a]
According to the surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite and theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Pawona measures between 15.69 and 18.826 kilometers in diameter and its surface has analbedo between 0.1529 and 0.2167.[4][5][6][7]
TheCollaborative Asteroid Lightcurve Link derives an albedo of 0.2782 and a diameter of 15.90 kilometers based on anabsolute magnitude of 11.0.[3]
Thisminor planet was named after astronomersJohann Palisa andMax Wolf, two prolificdiscoverers of minor planets, in recognition of their cooperation. The name was proposed by Swedish astronomer Bror Ansgar Asplind. The official naming citation was mentioned inThe Names of the Minor Planets byPaul Herget in 1955 (H 107).[2]
Pawona is a combination of "Palisa" and "Wolf" (Pa, Wo) joined with a Latin feminine suffix. The custom of adding the female endings "a" or "ia" to male names had only faded out by World War II and was finally abolished in 1947, when theMinor Planet Center took over responsibility of numbering and naming asteroids.[14]
