| 词条 | 1717 Arlon |
| 释义 |
| minorplanet = yes | name = 1717 Arlon | background = #D6D6D6 | image = | image_size = | caption = | discovery_ref = | discovered = 8 January 1954 | discoverer = S. Arend | discovery_site = Uccle Obs. | mpc_name = (1717) Arlon | alt_names = 1954 AC{{·}}1930 YU 1941 BJ{{·}}1946 UB 1951 GQ{{·}}1954 CE {{mp|1977 FQ|3}}{{·}}{{mp|1978 PC|5}} A915 CC | named_after = {{nowrap|Arlon {{small|(Municipality of Belgium)}}[2]}} | mp_category = main-belt{{·}}Flora [3] | orbit_ref = | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 0 | observation_arc = 85.66 yr (31,289 days) | aphelion = 2.4797 AU | perihelion = 1.9111 AU | semimajor = 2.1954 AU | eccentricity = 0.1295 | period = 3.25 yr (1,188 days) | mean_anomaly = 224.11° | mean_motion = {{Deg2DMS|0.3030|sup=ms}} / day | inclination = 6.1881° | asc_node = 340.49° | arg_peri = 115.91° | satellites = 1 {{small|(D: 4 km}}[5]{{·}}{{small|P: 18.2 h)}}[6][7] | dimensions = {{val|8.484|0.183}}[8] {{val|8.57|0.58}} km[9] {{val|8.87|0.74}} km[10] {{val|9.128|0.166}} km[11] {{val|9.15|}} km[12] | rotation = {{val|5.1082|0.0006}} h[13] {{val|5.1477|0.00009}} h{{efn|name=LCDB-Prave-2011}} {{val|5.148}} h[14] {{val|5.148|0.001}} h[7][16] {{val|5.1484|0.0004}} h{{efn|name=LCDB-Prave-2005}} {{val|5.1484}} h[6] {{val|5.261|0.005}} h[13] | albedo = {{val|0.167|0.024}}[9] {{val|0.225}}[12] {{val|0.2492|0.0420}}[11] {{val|0.287|0.048}}[8] {{val|0.315|0.166}}[10] | spectral_type = Tholen = S {{·}}S [3] | abs_magnitude = {{val|11.94|0.08}} {{small|(R)}}{{efn|name=LCDB-Prave-2005}}{{·}}{{val|12.09|0.33}}[26]{{·}}12.13[10]{{·}}12.90[9]{{·}}12.3{{·}}12.33[11]{{·}}{{val|12.43|0.094}}[3][12] }} 1717 Arlon, provisional designation {{mp|1954 AC}}, is a binary Florian asteroid from the inner regions of the asteroid belt, approximately 8.5 kilometers in diameter. It was discovered on 8 January 1954, by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle, Belgium, and later named for the Belgian town and provincial capital, Arlon.[2][34] Classification and orbitArlon is a member of the Flora family, a collisional family of S-type asteroids asteroids, and one of the largest populations of the main-belt. It orbits the Sun in the inner main-belt at a distance of 1.9–2.5 AU once every 3 years and 3 months (1,188 days). Its orbit has an eccentricity of 0.13 and an inclination of 6° with respect to the ecliptic. First identified as {{mp|A915 CC}} at Simeiz Observatory in 1915, Arlon{{'s}} first used observation was taken at Lowell Observatory in 1930, when it was identified as {{mp|1930 YU}}, extending the body's observation arc by 24 years prior to its official discovery observation.[34]Binary systemPrimaryA large number of rotational lightcurves of Arlon were obtained from photometric observations, giving a well-defined rotation period between 5.1477 and 5.1496 hours with a small brightness variation of 0.10 magnitude or less (also see infobox).[3]{{efn|name=LCDB-Prave-2011}} SecondaryDuring one of these photometric observations in 2006, the binary nature of Arlon was revealed. The discovered asteroid moon orbits its primary once every 18.2 hours, at a distance of 16 kilometers. The moon itself measures approximately 4 kilometers in diameter.[5][6][7] Diameter and albedoAccording to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Arlon measures between 8.48 and 9.15 kilometers in diameter and its surface has an albedo between 0.167 and 0.315.[8][9][12] The Collaborative Asteroid Lightcurve Link agrees with the revised WISE-results by Pravec, adopting an albedo of 0.225 and a diameter of 9.15 kilometers with an absolute magnitude of 12.43.[3] NamingThis minor planet was named for the Belgian town, municipality and provincial capital, Arlon. It is located on a hill above the source of the Semois river. In ancient times, Arlon was known as Orolaunum by the Romans and served as a station on the Antoninian way linking the cities Trier with Reims.[2] The approved naming citation was published by the Minor Planet Center on 22 September 1983 ({{small|M.P.C. 8150}}).[46] Notes{{notelist|refs={{efn|name=LCDB-Prave-2005|1=Pravec (2005): rotation period {{val|5.1484|0.0004}} with a brightness amplitude of {{val|0.08}}. Summary figures for (1717) Arlon at Asteroid Lightcurve Database}}{{efn|name=LCDB-Prave-2011|1=Pravec (2011): Pravec (2011): rotation period of {{val|5.14822|0.00009}}, {{val|5.1496|0.0005}} and {{val|5.1477|0.0004}} with a corresponding brightness amplitude of {{val|0.07}}, {{val|0.09}} and {{val|0.10}} in magnitude. Summary figures at Asteroid Lightcurve Database for (1717) Arlon}}}} References1. ^1 2 3 {{cite book |title = Dictionary of Minor Planet Names – (1717) Arlon |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 136 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1718 |chapter = (1717) Arlon }} [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]2. ^1 2 {{cite web |title = 1717 Arlon (1954 AC) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1717 |accessdate = 22 December 2016}} 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 = 22 December 2016}} 4. ^1 2 {{cite web |title = Asteroids and comets rotation curves – (1717) Arlon |last = Behrend |first = Raoul |publisher = Geneva Observatory |url = http://obswww.unige.ch/~behrend/page4cou.html#001717 |accessdate = 22 December 2016}} 5. ^1 2 {{cite web |date = 13 October 2006 |title = (1717) Arlon |publisher = Johnston's Archive |author = Wm. Robert Johnston |url = http://www.johnstonsarchive.net/astro/astmoons/am-01717.html |accessdate = 22 December 2016}} 6. ^1 2 3 4 5 {{cite web |title = LCDB Data for (1717) Arlon |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1717%7CArlon |accessdate = 22 December 2016}} 7. ^1 2 3 4 {{cite journal |display-authors = 6 |first1 = Fumihiko |last1 = Usui |first2 = Daisuke |last2 = Kuroda |first3 = Thomas G. |last3 = Müller |first4 = Sunao |last4 = Hasegawa |first5 = Masateru |last5 = Ishiguro |first6 = Takafumi |last6 = Ootsubo |first7 = Daisuke |last7 = Ishihara |first8 = Hirokazu |last8 = Kataza |first9 = Satoshi |last9 = Takita |first10 = Shinki |last10 = Oyabu |first11 = Munetaka |last11 = Ueno |first12 = Hideo |last12 = Matsuhara |first13 = Takashi |last13 = Onaka |date = October 2011 |title = Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey |url = http://pasj.oxfordjournals.org/content/63/5/1117.full.pdf+html |journal = Publications of the Astronomical Society of Japan |volume = 63 |issue = 5 |pages = 1117–1138 |bibcode = 2011PASJ...63.1117U |doi = 10.1093/pasj/63.5.1117 |access-date= 22 December 2016}} 8. ^1 2 3 {{cite journal |display-authors = 6 |first1 = A. |last1 = Mainzer |first2 = T. |last2 = Grav |first3 = J. |last3 = Masiero |first4 = E. |last4 = Hand |first5 = J. |last5 = Bauer |first6 = D. |last6 = Tholen |first7 = R. 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8 : Flora asteroids|Discoveries by Sylvain Arend|Minor planets named for places|Named minor planets|Binary asteroids|Arlon|S-type asteroids (Tholen)|Astronomical objects discovered in 1954 |
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