| Discovery[1] | |
|---|---|
| Discovered by | G. Neujmin |
| Discovery site | Simeiz Obs. |
| Discovery date | 19 March 1936 |
| Designations | |
| (1434) Margot | |
Named after | Gertrud Margot Görsdorf[2] (friend ofWilhelm Gliese) |
| 1936 FD1 · 1931 GM 1931 HA · 1938 RD 1938 UN · 1988 DU A906 QA · A922 SD | |
| main-belt · (outer) Eos[3][4] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 111.11 yr (40,582 days) |
| Aphelion | 3.2158AU |
| Perihelion | 2.8217 AU |
| 3.0187 AU | |
| Eccentricity | 0.0653 |
| 5.24yr (1,916 days) | |
| 86.589° | |
| 0° 11m 16.44s / day | |
| Inclination | 10.832° |
| 152.42° | |
| 147.81° | |
| Physical characteristics | |
| Dimensions | 27.178±0.303 km[5] 27.20±1.75 km[6] 28.052±0.039 km[7] 29.49 km(derived)[3] 29.65±1.4 km[8] 30.84±0.62 km[9] |
| 8.17h[10] | |
| 0.1106(derived)[3] 0.117±0.249[6] 0.1242±0.0101[7] 0.130±0.023[5] 0.132±0.006[9] 0.1353±0.013[8] | |
| Tholen =S[1][3] · S[11] B–V = 0.809[1] U–B = 0.404[1] | |
| 10.43[1][9][8] · 10.49±0.05[11] · 10.66[10][7][3] · 10.77[6] | |
1434 Margot, provisional designation1936 FD1, is a stony Eoanasteroid from the outer regions of theasteroid belt, approximately 29 kilometers in diameter. It was discovered on 19 March 1936, by Soviet astronomerGrigory Neujmin at theSimeiz Observatory on the Crimean peninsula.[12] The asteroid was named after Gertrud Margot Görsdorf, a friend of German astronomer ofWilhelm Gliese.[2]
Margot is a member theEos family (606),[3][4] the largestasteroid family of theouter asteroid belt consisting of nearly 10,000 asteroids.[13]: 23 It orbits the Sun at a distance of 2.8–3.2 AU once every 5 years and 3 months (1,916 days). Its orbit has aneccentricity of 0.07 and aninclination of 11° with respect to theecliptic.[1]
The body'sobservation arc begins atVienna Observatory in August 1906, when it was first identified asA922 SD, almost 30 years prior to its official discovery observation at Simeiz.[12]
In theTholen classification,Margot is a commonS-type asteroid.[1][3]Pan-STARRS photometric survey also characterizes it as a stony S-type,[11] while the overallspectral type for Eoan asteroids is that of aK-type.[13]: 23
In June 1984, a rotationallightcurve ofMargot was obtained from photometric observations by American astronomerRichard Binzel . Lightcurve analysis gave a well-definedrotation period of 8.17 hours with a brightness amplitude of 0.52magnitude, indicative of a somewhat elongated shape (U=3).[10]
According to the surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite and theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Margot measures between 27.178 and 30.84 kilometers in diameter and its surface has analbedo between 0.117 and 0.1353.[5][6][7][8][9]
TheCollaborative Asteroid Lightcurve Link derives an albedo of 0.1106 and a diameter of 29.49 kilometers based on anabsolute magnitude of 10.66.[3]
Thisminor planet was named by German astronomerWilhelm Gliese after Gertrud Margot Zottmann (1915–1990; née Görsdorf), his friend and schoolfellow for several years at Berlin. Gliese, after whom the asteroid(1823) is named, is best known for theGliese Catalogue of Nearby Stars, which is itself the source of name for many discoveredexoplanets.[2] The discovery circumstances and naming were researched byLutz Schmadel, the author of theDictionary of Minor Planet Names.[2]
