_Lindel%25C3%25B6f.png) Shape model of Lindelöf from itslightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | Y. Väisälä |
| Discovery site | Turku Obs. |
| Discovery date | 21 November 1936 |
| Designations | |
| (1407) Lindelof | |
Named after | Ernst Lindelöf (Finnishtopologist)[2] |
| 1936 WC · 1977 FL A905 AB | |
| main-belt · (middle)[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 112.51 yr (41,093 days) |
| Aphelion | 3.5462AU |
| Perihelion | 1.9853 AU |
| 2.7657 AU | |
| Eccentricity | 0.2822 |
| 4.60yr (1,680 days) | |
| 231.44° | |
| 0° 12m 51.48s / day | |
| Inclination | 5.8138° |
| 268.39° | |
| 111.03° | |
| Physical characteristics | |
| Dimensions | 17.39±3.36 km[4] 19.94±3.96 km[5] 20.310±0.317 km[6] 20.75 km(derived)[3] 20.98±1.6 km[7] 23.85±1.40 km[8] |
| 31.0941±0.0001 h[9] 31.151±0.004h[10] | |
| 0.179±0.023[8] 0.1791(derived)[3] 0.187±0.017[6] 0.21±0.06[5] 0.2309±0.040[7] 0.28±0.17[4] | |
| SMASS =X[3] · S[3] | |
| 10.6[7][8] · 10.67±0.40[11] · 10.9[1][3][5][6] · 10.96[4] | |
1407 Lindelöf (provisional designation1936 WC) is anasteroid from the central region of theasteroid belt, approximately 20 kilometers in diameter. It was discovered on 21 November 1936 by Finnish astronomerYrjö Väisälä atTurku Observatory in SouthwestFinland.[12] The asteroid was named after Finnish topologistErnst Lindelöf.[2]
Lindelöf orbits the Sun in the centralmain asteroid belt at a distance of 2.0–3.5 AU once every 4 years and 7 months (1,680 days). Its orbit has anorbital eccentricity of 0.28 and aninclination of 6° with respect to theecliptic.[1] In 1905, it was first identified asA905 AB atHeidelberg Observatory, extending the body'sobservation arc by 31 years prior to its official discovery observation.[12]
In theSMASS taxonomy,Lindelöf'sspectral class is that of anX-type asteroid, while theCollaborative Asteroid Lightcurve Link (CALL) considers it to be of astony composition.[1][3]
French amateur astronomerPierre Antonini obtained a rotationallightcurve of Lindelöf from photometric observations in January 2006. Lightcurve analysis gave a well-defined and longer-than averagerotation period of 31.151 hours with a brightness variation of 0.34 inmagnitude (U=3).[10]
A lightcurve published in 2016 using modeled photometric data from the Lowell Photometric Database (LPD) gave a concurring period of 31.0941 hours (U/Q=n.a.), as well as a spin axis of (147.0°, 36°) inecliptic coordinates (λ, β).[9]
According to the surveys carried out by theInfrared Astronomical Satellite (IRAS), the JapaneseAKARI satellite, and NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission, Lindelöf measures between 17.39 and 23.85 kilometres (10.81 and 14.82 mi) in diameter, and its surface has analbedo between and 0.179 and 0.28.[4][5][6][7][8] TheCollaborative Asteroid Lightcurve Link derives an albedo of 0.1791 and a diameter of 20.75 kilometres (12.89 mi), with anabsolute magnitude of 10.9.[3]
Thisminor planet was named for Finnish topologistErnst Leonard Lindelöf (1870–1946), who was a professor of mathematics atHelsinki University.[2] TheLindelöf spaces are also named after him. The official naming citation was mentioned inThe Names of the Minor Planets byPaul Herget in 1955 (H 127).[2]
