astro.wikisort.org - Asteroid

3544 Borodino (prov. designation: 1977 RD₄) is a stony background asteroid from the inner regions of the asteroid belt, approximately 9 kilometers (5.6 miles) in diameter. It was discovered on 7 September 1977, by Soviet astronomer Nikolai Chernykh at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula.[1] The likely elongated S-type asteroid has a rotation period of 5.44 hours.[3] It was named for the Russian village of Borodino where the Battle of Borodino took place.[1]

3544 Borodino

Shape model of Borodino from its lightcurve
Discovery [1]
Discovered by	N. Chernykh
Discovery site	Crimean Astrophysical Obs.
Discovery date	7 September 1977
Designations
MPC designation	(3544) Borodino
Named after	Borodino (village) (Battle of Borodino)
Alternative designations	1977 RD4 · 1936 QJ1 1943 GM · 1947 LO 1951 RW1 · 1951 SJ 1980 FM11 · 1981 RN5
Minor planet category	main-belt [1][2] · (inner)[3] background [4]
Orbital characteristics [2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc	75.06 yr (27,414 d)
Aphelion	2.9302 AU
Perihelion	1.8718 AU
Semi-major axis	2.4010 AU
Eccentricity	0.2204
Orbital period (sidereal)	3.72 yr (1,359 d)
Mean anomaly	344.02°
Mean motion	0° 15m 53.64s / day
Inclination	8.9017°
Longitude of ascending node	147.61°
Argument of perihelion	148.82°
Physical characteristics
Mean diameter	6.11±0.55 km[5] 8.502±0.075 km[6] 8.688±0.056 km[7]
Synodic rotation period	5.435±0.00005 h[8] 5.437±0.001 h[9] 5.44±0.01 h[10] 5.442±0.002 h[lower-alpha 1]
Pole ecliptic latitude	(294.0°, −60.0°) (λ1/β1)[11] (157.0°, −57.0°) (λ2/β2)[11]
Geometric albedo	0.2361±0.0290[7] 0.247±0.027[12] 0.474±0.088[5]
Spectral type	S (assumed)[3]
Absolute magnitude (H)	12.4[2][3] 12.50[5][7]

Orbit and classification

Borodino is a non-family asteroid from the main belt's background population.[4] It orbits the Sun in the inner 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 an eccentricity of 0.22 and an inclination of 9° with respect to the ecliptic.[2] The asteroid was first observed as 1936 QJ₁ at Johannesburg Observatory in August 1936. The body's observation arc begins with its observations as 1943 GM at Turku Observatory in April 1943, or more than 34 years prior to its official discovery observation at Nauchnij.[1]

Naming

This minor planet was named after the Russian village of Borodino near Moscow where the Battle of Borodino took place in September 1812 during the Napoleonic Wars.[1] The official naming citation was published by the Minor Planet Center on 10 November 1992 (M.P.C. 21130).[13]

Physical characteristics

Borodino is an assumed stony S-type asteroid, which agrees with the albedo measured (see below) by the Wide-field Infrared Survey Explorer (WISE).[3]

Rotation period

Several rotational lightcurves of Borodino have been obtained from photometric observations since 2007. Best-rated lightcurve by Australian amateur astronomer David Higgins at the Hunters Hill Observatory (E14) gave a rotation period of 5.442 hours with a brightness variation of 0.60 magnitude (U=3).[lower-alpha 1] Other observations by French amateur astronomer Patrick Mazel, by astronomers at Texas A&M University, using the SARA-telescopes of the Southeastern Association for Research and Astronomy consortium, and by astronomers at the Oakley 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.

Poles

Two lightcurves, published in 2016, using modeled photometric data from the Lowell Photometric Database (LPD) and other sources, gave a concurring sidereal period of 5.43459±0.00001 and 5.43460±0.00005 hours, respectively. Each modeled lightcurve also determined two spin axes of (104.0°, −57.0°) and (267.0°, −53.0°), as well as (294.0°, −60.0°) and (157.0°, −57.0°) in ecliptic coordinates (λ, β), respectively.[14][11]

Diameter and albedo

According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's WISE telescope, Borodino measures between 6.11 and 8.688 kilometers in diameter and its surface has an albedo between 0.2361 and 0.474.[5][6][7][12] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.20 and calculates a diameter of 9.84 kilometers based on an absolute magnitude of 12.4.[3]

Notes

References

External links

• "Lightcurves by David Higgins". Archived from the original on 25 October 2010. Retrieved 15 May 2018.
• Lightcurve Database Query (LCDB), at www.minorplanet.info
• Dictionary of Minor Planet Names, Google books
• Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
• Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
• 3544 Borodino at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 3544 Borodino at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

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[de] (3544) Borodino

(3544) Borodino ist ein Asteroid des Hauptgürtels, der am 7. September 1977 vom russischen Astronomen Nikolai Stepanowitsch Tschernych am Krim-Observatorium in Nautschnyj (IAU-Code 095) entdeckt wurde.

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- [en] 3544 Borodino

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[ru] (3544) Бородино

(3544) Бородино (англ. 3544 Borodino, ранее 1977 RD4) — каменистый астероид внутренней области пояса астероидов, диаметр составляет около 9 км. Открыт 7 сентября 1977 года советским астрономом Николаем Черных в Крымской Астрофизической обсерватории.[1] Форма астероида, предположительно, вытянутая, период обращения составляет 5,44 часов.[3] Астероид назван в честь деревни Бородино, у которой произошло Бородинское сражение.[1]

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