_Borodino.png) Shape model ofBorodino from itslightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | N. Chernykh |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 7 September 1977 |
| Designations | |
| (3544) Borodino | |
Named after | Borodino (village) (Battle of Borodino) |
| 1977 RD4 · 1936 QJ1 1943 GM · 1947 LO 1951 RW1 · 1951 SJ 1980 FM11 · 1981 RN5 | |
| main-belt[1][2] · (inner)[3] background[4] | |
| Orbital characteristics[2] | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 75.06yr (27,414 d) |
| Aphelion | 2.9302AU |
| Perihelion | 1.8718 AU |
| 2.4010 AU | |
| Eccentricity | 0.2204 |
| 3.72 yr (1,359 d) | |
| 344.02° | |
| 0° 15m 53.64s / day | |
| Inclination | 8.9017° |
| 147.61° | |
| 148.82° | |
| Physical characteristics | |
| 6.11±0.55 km[5] 8.502±0.075 km[6] 8.688±0.056 km[7] | |
| 5.435±0.00005 h[8] 5.437±0.001 h[9] 5.44±0.01 h[10] 5.442±0.002 h[a] | |
| 0.2361±0.0290[7] 0.247±0.027[12] 0.474±0.088[5] | |
| S(assumed)[3] | |
| 12.4[2][3] 12.50[5][7] | |
3544 Borodino (prov. designation:1977 RD4) is a stonybackground asteroid from the inner regions of theasteroid belt, approximately 9 kilometers (5.6 miles) in diameter. It was discovered on 7 September 1977, by Soviet astronomerNikolai Chernykh at theCrimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula.[1] The likely elongatedS-type asteroid has arotation period of 5.44 hours.[3] It was named for the Russian village ofBorodino where theBattle of Borodino took place.[1]
Borodino is a non-family asteroid from the main belt'sbackground population.[4] It orbits the Sun in theinner asteroid belt at a distance of 1.9–2.9 AU once every 3 years and 9 months (1,359 days;semi-major axis of 2.4 AU). Its orbit has aneccentricity of 0.22 and aninclination of 9° with respect to theecliptic.[2] The asteroid was first observed as1936 QJ1 atJohannesburg Observatory in August 1936. The body'sobservation arc begins with its observations as1943 GM atTurku Observatory in April 1943, or more than 34 years prior to its official discovery observation at Nauchnij.[1]
Thisminor planet was named after the Russian village ofBorodino near Moscow where theBattle of Borodino took place in September 1812 during theNapoleonic Wars.[1] The official naming citation was published by theMinor Planet Center on 10 November 1992 (M.P.C. 21130).[13]
Borodino is an assumed stonyS-type asteroid, which agrees with the albedo measured(see below) by theWide-field Infrared Survey Explorer (WISE).[3]
Several rotationallightcurves ofBorodino have been obtained fromphotometric observations since 2007. Best-rated lightcurve by Australian amateur astronomerDavid Higgins at the Hunters Hill Observatory (E14) gave arotation period of 5.442 hours with a brightness variation of 0.60magnitude (U=3).[a] Other observations by French amateur astronomer Patrick Mazel, by astronomers atTexas A&M University, using the SARA-telescopes of theSoutheastern Association for Research and Astronomy consortium, and by astronomers at theOakley Southern Sky Observatory, Australia, gave a period of 5.435, 5.437 and 5.44 hours with an amplitude of 0.74, 0.65 and 0.63 magnitude, respectively (U=n.a./3/2+).[8][9][10] A high brightness amplitude is indicative of a non-spherical shape.
Two lightcurves, published in 2016, using modeled photometric data from the Lowell Photometric Database (LPD) and other sources, gave a concurring sidereal period of5.43459±0.00001 and5.43460±0.00005 hours, respectively. Each modeled lightcurve also determined twospin axes of (104.0°, −57.0°) and (267.0°, −53.0°), as well as (294.0°, −60.0°) and (157.0°, −57.0°) inecliptic coordinates (λ, β), respectively.[14][11]
According to the surveys carried out by the JapaneseAkari satellite and theNEOWISE mission of NASA's WISE telescope,Borodino measures between 6.11 and 8.688 kilometers in diameter and its surface has analbedo between 0.2361 and 0.474.[5][6][7][12] TheCollaborative Asteroid Lightcurve Link assumes an albedo of 0.20 and calculates a diameter of 9.84 kilometers based on anabsolute magnitude of 12.4.[3]
