_Euler.png) Shape model ofEuler from itslightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | T. Smirnova |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 29 August 1973 |
| Designations | |
| (2002) Euler | |
| Pronunciation | /ˈɔɪlər/[2] |
Named after | Leonhard Euler (Swiss mathematician)[3] |
| 1973 QQ1 · 1938 DW 1942 GJ · 1953 EB 1973 SJ2 | |
| main-belt · (inner) | |
| Adjectives | Eulerian/juːˈlɪəriən/[4] |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 75.04 yr (27,408 days) |
| Aphelion | 2.5844AU |
| Perihelion | 2.2512 AU |
| 2.4178 AU | |
| Eccentricity | 0.0689 |
| 3.76yr (1,373 days) | |
| 0.3273° | |
| 0° 15m 43.92s / day | |
| Inclination | 8.5015° |
| 178.65° | |
| 53.294° | |
| Physical characteristics | |
| 17.4 km[5] 18.838±0.066[6] | |
| Mass | 5.5×1015 kg[citation needed] |
| 5.9929h[7][8] | |
| 0.036±0.003[6] 0.0839±0.015[5] | |
| S[7] | |
| 12.4[1] · 12.7[7] | |
2002 Euler is a stonybackground asteroid from the inner regions of theasteroid belt, approximately 17 kilometers (11 miles) in diameter. It was discovered on 29 August 1973, by Russian astronomerTamara Smirnova at theCrimean Astrophysical Observatory in Nauchnyj, and assigned theprov. designation1973 QQ1. It was named after Swiss mathematicianLeonhard Euler.[3][9]
Euler is a non-family asteroid of the main belt'sbackground population when applying thehierarchical clustering method to itsproper orbital elements. It orbits the Sun at a distance of 2.3–2.6 AU once every 3 years and 9 months (1,373 days). Its orbit has aneccentricity of 0.07 and aninclination of 9° with respect to theecliptic.[1]
Thisminor planet was named after Swiss mathematician, physicist and astronomerLeonhard Euler (1707–1783). His contributions to astronomy included two theories for the motion of the Moon. Euler spent much of his time inSt. Petersburg and was associated with theRussian Academy of Sciences.[3] The officialnaming citation was published by theMinor Planet Center on 15 October 1977 (M.P.C. 4238).[10]
According to the surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite, and NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission,Euler measures between 14.49 and 19.773 kilometers in diameter and its surface has analbedo between 0.0416 and 0.0839. TheCollaborative Asteroid Lightcurve Link adoptsPetr Pravec's revised WISE-data, that is, an albedo of 0.0375 and a diameter of 19.78 kilometers with anabsolute magnitude of 12.7.[7]
