词条 | 5026 Martes |
释义 |
| minorplanet = yes | name = 5026 Martes | background = #D6D6D6 | image = | image_size = | caption = | discovery_ref = | discovered = 22 August 1987 | discoverer = A. Mrkos | discovery_site = Kleť Obs. | mpc_name = (5026) Martes | alt_names = {{mp|1987 QL|1}}{{·}}1965 QE 1976 QL{{·}}{{mp|1980 VA|2}} | pronounced = | named_after = pine marten beech marten {{small|(Mustelidae mammals)}}[2] | mp_category = main-belt{{·}}{{small|(inner)}} [3] | orbit_ref = | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 0 | observation_arc = 63.37 yr (23,145 days) | aphelion = 2.9540 AU | perihelion = 1.8020 AU | semimajor = 2.3780 AU | eccentricity = 0.2422 | period = 3.67 yr (1,339 days) | mean_anomaly = 75.131° | mean_motion = {{Deg2DMS|0.2688|sup=ms}} / day | inclination = 4.2831° | asc_node = 304.77° | arg_peri = 17.652° | dimensions = 4.93 km {{small|(calculated)}}[3] {{val|8.967|2.335}} km[6] | rotation = {{val|4.423|0.0011}} h[7] {{val|4.424087|0.000002}} h[8] {{val|4.4243|0.005}} h[9] | albedo = {{val|0.066|0.072}}[6] 0.20 {{small|(assumed)}}[3] | spectral_type = B–V = {{val|0.863|0.042}}[12] V–R = {{val|0.440|0.047}}[12] C [14]{{·}}S [3] | abs_magnitude = 13.80[6]{{·}}13.9[3]{{·}}{{val|14.065|0.010}} {{small|(R)}}[7]{{·}}{{val|14.17|0.36}}[14] }}5026 Martes, provisional designation {{mp|1987 QL|1}}, is a carbonaceous asteroid from the inner region of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 22 August 1987, by Czech astronomer Antonín Mrkos at Kleť Observatory in the Czech Republic.[21] It is named after the two weasel-like animal species: pine marten and beech marten.[2] Orbit and classificationMartes is the namesake member of a small asteroid family, named the Martes family.{{citation needed|date=March 2017}} It orbits the Sun in the inner main-belt at a distance of 1.8–3.0 AU once every 3 years and 8 months (1,339 days). Its orbit has an eccentricity of 0.24 and an inclination of 4° with respect to the ecliptic.A first precovery was taken at Palomar Observatory in 1953, extending the body's observation arc by 34 years prior to its official discovery observation at Klet.[21] Physical characteristicsMartes has been characterized as a carbonaceous C-type asteroid by PanSTARRS{{'}} photometric survey.[14]Asteroid pairMartes forms an asteroid pair with {{mp|2005 WW|113}}, and was part of the 35 sample asteroid pairs in Petr Pravec's study Formation of asteroid pairs by rotational fission, published in the journal Nature.[9]LightcurvesBetween 2008 and 2010, several rotational lightcurves of Martes were obtained from photometric observations. Lightcurve analysis gave a well-defined rotation period of 4.4243 hours with a brightness amplitude of 0.69 magnitude ({{small|U=3-/3/2+/3/2}}).[3][9][8][7] Diameter and albedoAccording to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Martes measures 8.967 kilometers in diameter and its surface has an albedo of 0.066, which is typical for carbonaceous asteroids.[6] The Collaborative Asteroid Lightcurve Link, however, assumes a standard albedo for stony asteroids of 0.20 and consequently calculates a much smaller diameter of 4.93 kilometers, due to the higher albedo.[3] NamingThis minor planet was named for the two species of the family Mustelidae, the pine marten and beech marten. They also live in the forests near the discovering Kleť Observatory.[2] The official naming citation was published by the Minor Planet Center on 22 June 1999 ({{small|M.P.C. 34920}}).[34] References1. ^1 2 3 {{cite book |title = Dictionary of Minor Planet Names – (5026) Martes |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 432 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_4893 |chapter = (5026) Martes }} [1][2][3][4][5][6][7][8][9][10]2. ^1 2 {{cite web |title = 5026 Martes (1987 QL1) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=5026 |accessdate = 28 March 2017}} 3. ^1 {{cite web |title = MPC/MPO/MPS Archive |work = Minor Planet Center |url = http://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html |accessdate = 28 March 2017}} 4. ^1 2 3 4 5 6 7 {{cite web |title = LCDB Data for (5026) Martes |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=5026%7CMartes |accessdate = 28 March 2017}} 5. ^1 2 3 4 {{cite journal |display-authors = 6 |first1 = C. 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6 : Erigone asteroids|Martes asteroids|Discoveries by Antonín Mrkos|Minor planets named for animals|Named minor planets|Astronomical objects discovered in 1987 |
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