| 词条 | 1517 Beograd |
| 释义 |
| minorplanet = yes | name = 1517 Beograd | background = #D6D6D6 | image = | image_size = | caption = | discovery_ref = | discovered = 20 March 1938 | discoverer = M. B. Protić | discovery_site = Belgrade Obs. | mpc_name = (1517) Beograd | alt_names = 1938 FD{{·}}1931 VF 1934 JF{{·}}1935 ST 1942 CD{{·}}1952 JG {{mp|1952 KM|1}}{{·}}1971 VT {{mp|1978 EW|6}} | named_after = Belgrade {{small|(capital city)}}[2] | mp_category = main-belt{{·}}{{small|(middle)}} [3] Padua [4][5] | orbit_ref = | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 0 | observation_arc = 85.34 yr (31,171 days) | aphelion = 2.8392 AU | perihelion = 2.5935 AU | semimajor = 2.7164 AU | eccentricity = 0.0452 | period = 4.48 yr (1,635 days) | mean_anomaly = 159.08° | mean_motion = {{Deg2DMS|0.2202|sup=ms}} / day | inclination = 5.2774° | asc_node = 63.889° | arg_peri = 231.89° | dimensions = {{val|30.97|9.33}} km[7] {{val|36.16|1.9}} km {{small|(IRAS:20)}}[8] {{val|37.90|0.48}} km[9] {{val|39.524|0.219}} km[10] {{val|42.003|0.213}} km[11] | rotation = {{val|6.943|0.004}} h[12] {{val|6.9490|0.0006}} h[13] | albedo = {{val|0.0364|0.0021}}[11] {{val|0.045|0.001}}[9] {{val|0.0491|0.005}} {{small|(IRAS:20)}}[8] {{val|0.050|0.006}}[10] {{val|0.07|0.03}}[7] | spectral_type = SMASS = X {{·}}P [11]{{·}}X [3] | abs_magnitude = 11.1[3][7][8][9][11]{{·}}{{val|11.23|0.66}}[27] }}1517 Beograd, provisional designation {{mp|1938 FD}}, is a dark Paduan asteroid from the central region of the asteroid belt, approximately 36 kilometers in diameter. It was discovered on 20 March 1938, by Serbian astronomer Milorad Protić at Belgrade Astronomical Observatory in Serbia.[28] It is named after the city Belgrade.[2] Orbit and classificationBeograd is member of the mid-sized Padua family ({{small|507}}), an asteroid family named after 363 Padua and at least 25 million years old. It consists of mostly X-type asteroids, that were previously associated to 110 Lydia (the Padua family is therefor also known as Lydia family). Together with the Agnia family, the Padua family is the only other family to have most of its members in a nonlinear secular resonance configuration with more than 75% of its members in a z1 librating state.[4][5]This asteroid orbits the Sun in the central main-belt at a distance of 2.6–2.8 AU once every 4 years and 6 months (1,635 days). Its orbit has an eccentricity of 0.05 and an inclination of 5° with respect to the ecliptic. In 1931, Beograd was first identified as {{mp|1931 VF}} at Uccle Observatory, extending the body's observation arc by 7 years prior to its official discovery observation at Belgrade.[28] Physical characteristicsLightcurvesFrench amateur astronomer Laurent Bernasconi obtained a lightcurve of Beograd from photometric observations taken in March 2005. Light-curve analysis gave a rotation period of 6.943 hours with a brightness variation of 0.18 magnitude ({{small|U=2}}).[12] In April 2014, a lightcurve obtained by Vladimir Benishek at the discovering Belgrade Observatory gave a concurring period of 6.9490 hours with an amplitude of 0.23 magnitude ({{small|U=2}}).[13] Diameter and albedoAccording to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Beograd measures between 30.97 and 42.00 kilometers in diameter, and its surface has an albedo between 0.036 and 0.07.[7][9][10][11] The Collaborative Asteroid Lightcurve Link adopts the results from IRAS, that is, an albedo of 0.0491 and a diameter of 36.16 kilometers using an absolute magnitude of 11.1.[3][8] Spectral typeBeograd is characterized as a X-type asteroid in the SMASS taxonomy, while NEOWISE classifies it as a reddish P-type asteroid due to its low albedo.[11]NamingThis minor planet was named by the discoverer in honor of his native city and the capital of his country, Belgrade.[2] The official naming citation was published by the Minor Planet Center before November 1977 ({{small|M.P.C. 2277}}).[44] References1. ^1 2 3 {{cite book |title = Dictionary of Minor Planet Names – (1517) Beograd |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 121 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1518 |chapter = (1517) Beograd }} [1][2][3][4][5][6][7][8][9][10][11][12][13][14]2. ^1 2 {{cite web |title = 1517 Beograd (1938 FD) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1517 |accessdate = 3 January 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 = 3 January 2017}} 4. ^1 2 {{cite web |title = Asteroids and comets rotation curves – (1517) Beograd |last = Behrend |first = Raoul |publisher = Geneva Observatory |url = http://obswww.unige.ch/~behrend/page4cou.html#001517 |accessdate = 3 January 2017}} 5. ^1 2 {{cite journal |author = Carruba, V. |date = May 2009 |title = The (not so) peculiar case of the Padua family |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2009MNRAS.395..358C |journal = Monthly Notices of the Royal Astronomical Society |volume = 395 |issue = 1 |pages = 358–377 |bibcode = 2009MNRAS.395..358C |doi = 10.1111/j.1365-2966.2009.14523.x |access-date= 7 December 2015}} 6. ^1 2 {{Cite journal |first1 = V. |last1 = Carruba |first2 = R. C. |last2 = Domingos |first3 = D. |last3 = Nesvorný |first4 = F. |last4 = Roig |first5 = M. E. |last5 = Huaman |first6 = D. |last6 = Souami |date = August 2013 |title = A multidomain approach to asteroid families' identification |journal = Monthly Notices of the Royal Astronomical Society |volume = 433 |issue = 3 |pages = 2075–2096 |bibcode = 2013MNRAS.433.2075C |doi = 10.1093/mnras/stt884 |arxiv = 1305.4847 }} 7. ^1 2 3 {{cite journal |display-authors = 6 |first1 = Joseph R. |last1 = Masiero |first2 = T. |last2 = Grav |first3 = A. K. |last3 = Mainzer |first4 = C. R. |last4 = Nugent |first5 = J. M. |last5 = Bauer |first6 = R. |last6 = Stevenson |first7 = S. |last7 = Sonnett |date = August 2014 |title = Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M |journal = The Astrophysical Journal |volume = 791 |issue = 2 |page = 11 |bibcode = 2014ApJ...791..121M |doi = 10.1088/0004-637X/791/2/121 |arxiv = 1406.6645 |access-date= 3 January 2017}} 8. ^1 2 3 4 {{cite web |title = LCDB Data for (1517) Beograd |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1517%7CBeograd |accessdate = 3 January 2017}} 9. ^1 2 3 4 {{cite journal |first1 = E. F. |last1 = Tedesco |first2 = P. V. |last2 = Noah |first3 = M. |last3 = Noah |first4 = S. D. |last4 = Price |date = October 2004 |title = IRAS Minor Planet Survey V6.0 |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2004PDSS...12.....T |journal = NASA Planetary Data System |volume = 12 |pages = IRAS-A-FPA-3-RDR-IMPS-V6.0 |bibcode = 2004PDSS...12.....T |access-date= 3 January 2017}} 10. ^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= 3 January 2017}} 11. ^1 2 3 4 5 6 {{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. S. |last7 = McMillan |first8 = T. |last8 = Spahr |first9 = R. M. |last9 = Cutri |first10 = E. |last10 = Wright |first11 = J. |last11 = Watkins |first12 = W. |last12 = Mo |first13 = C. |last13 = Maleszewski |date = November 2011 |title = NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results |journal = The Astrophysical Journal |volume = 741 |issue = 2 |page = 25 |bibcode = 2011ApJ...741...90M |doi = 10.1088/0004-637X/741/2/90 |arxiv = 1109.6407 }} 12. ^1 2 3 4 {{cite journal |display-authors = 6 |first1 = C. R. |last1 = Nugent |first2 = A. |last2 = Mainzer |first3 = J. |last3 = Masiero |first4 = J. |last4 = Bauer |first5 = R. M. |last5 = Cutri |first6 = T. |last6 = Grav |first7 = E. |last7 = Kramer |first8 = S. |last8 = Sonnett |first9 = R. |last9 = Stevenson |first10 = E. L. |last10 = Wright |date = December 2015 |title = NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015ApJ...814..117N |journal = The Astrophysical Journal |volume = 814 |issue = 2 |page = 13 |bibcode = 2015ApJ...814..117N |doi = 10.1088/0004-637X/814/2/117 |arxiv = 1509.02522 |access-date= 3 January 2017}} 13. ^1 2 {{Cite journal |first1 = Vladimir |last1 = Benishek |first2 = Frederick |last2 = Pilcher |date = October 2014 |title = Rotation Period Determination for the Main-belt Asteroid 1517 Beograd |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014MPBu...41..263B |journal = The Minor Planet Bulletin |volume = 41 |issue = 4 |pages = 263–264 |issn = 1052-8091 |bibcode = 2014MPBu...41..263B |access-date= 3 January 2017}} 14. ^1 {{cite journal |display-authors = 6 |first1 = Peter |last1 = Veres |first2 = Robert |last2 = Jedicke |first3 = Alan |last3 = Fitzsimmons |first4 = Larry |last4 = Denneau |first5 = Mikael |last5 = Granvik |first6 = Bryce |last6 = Bolin |first7 = Serge |last7 = Chastel |first8 = Richard J. |last8 = Wainscoat |first9 = William S. |last9 = Burgett |first10 = Kenneth C. |last10 = Chambers |first11 = Heather |last11 = Flewelling |first12 = Nick |last12 = Kaiser |first13 = Eugen A. |last13 = Magnier |first14 = Jeff S. |last14 = Morgan |first15 = Paul A. |last15 = Price |first16 = John L. |last16 = Tonry |first17 = Christopher |last17 = Waters |date = November 2015 |title = Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V |journal = Icarus |volume = 261 |pages = 34–47 |bibcode = 2015Icar..261...34V |doi = 10.1016/j.icarus.2015.08.007 |arxiv = 1506.00762 |access-date= 3 January 2017}} }} External links
6 : Padua asteroids|Discoveries by Milorad B. Protić|Minor planets named for places|Named minor planets|X-type asteroids (SMASS)|Astronomical objects discovered in 1938 |
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