| 词条 | 1051 Merope |
| 释义 |
| minorplanet = yes | name = 1051 Merope | background = #D6D6D6 | image = | image_size = | caption = | discovery_ref = [1] | discoverer = K. Reinmuth | discovery_site = Heidelberg Obs. | discovered = 16 September 1925 | mpc_name = (1051) Merope | alt_names = 1925 SA{{·}}1926 XA {{mp|1931 TM|3}}{{·}}1936 OG A908 TE | pronounced = {{IPAc-en|ˈ|m|ɛr|ə|p|i}} {{respell|MERR|ə|pee}} | named_after = Merope [2] {{small|(Greek mythology)}} | mp_category = {{nowrap|main-belt [1]{{·}}{{small|(outer)}} [5]}} Alauda [6] | orbit_ref = | epoch = 23 March 2018 (JD 2458200.5) | uncertainty = 0 | observation_arc = 92.19 yr (33,673 d) | aphelion = 3.5341 AU | perihelion = 2.8948 AU | semimajor = 3.2144 AU | eccentricity = 0.0994 | period = 5.76 yr (2,105 d) | mean_anomaly = 25.459° | mean_motion = {{Deg2DMS|0.1710|sup=ms}} / day | inclination = 23.507° | asc_node = 180.72° | arg_peri = 152.97° | mean_diameter = {{val|60.439|0.146|ul=km}}[8] {{val|65.130|0.245|u=km}}[9] {{val|67.11|u=km}} {{small|(derived)}}[5] {{val|67.21|1.9|u=km}}[11] {{val|69.22|21.30|u=km}}[12] {{val|69.85|0.88|u=km}}[13] {{val|74.36|28.24|u=km}}[14] | rotation = {{val|13.717|0.0164|ul=h}}[15] {{val|27.2|0.3|u=h}}[16] | albedo = {{val|0.03|0.05}}[14] 0.0358 {{small|(derived)}}[5] {{val|0.040|0.001}}[13] {{val|0.04|0.03}}[12] {{val|0.0429|0.003}}[11] {{val|0.0457|0.0058}}[9] {{val|0.053|0.009}}[8] | spectral_type = P [9]{{·}}C [25] | abs_magnitude = 9.90[9][11][13]{{·}}10.0 {{val|10.05|0.40}}[25] {{val|10.051|0.001}} {{small|(R)}}[15] 10.10[5][12]{{·}}10.11[14] }}1051 Merope ({{IPAc-en|ˈ|m|ɛr|ə|p|i}} {{respell|MERR|ə|pee}}), provisional designation {{mp|1925 SA}}, is a dark Alauda asteroid from the outermost region of the asteroid belt, approximately {{convert|68|km|mi|abbr=off|sp=us}} in diameter. It was discovered on 16 September 1925, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in Heidelberg, Germany,[1] who named it after the nymph Merope from Greek mythology.[2] The asteroid has a rotation period of 27.2 hours.[5] Orbit and classificationMerope is a member of the Alauda family ({{small|902}}),[6] a large family of carbonaceous asteroids and named after its parent body, 702 Alauda.[39]{{rp|23}} It orbits the Sun in the outermost asteroid belt at a distance of 2.9–3.5 AU once every 5 years and 9 months (2,105 days; semi-major axis of 3.21 AU). Its orbit has an eccentricity of 0.10 and an inclination of 24° with respect to the ecliptic. The asteroid was first observed as {{mp|A908 TE}} at Taunton Observatory {{Obscode|803}} in October 1908. The body's observation arc begins at Heidelberg in October 1925, or three weeks after its official discovery observation.[1] Physical characteristicsMerope has been characterized as a primitive P-type asteroid by the Wide-field Infrared Survey Explorer (WISE),[9] and as a common carbonaceous C-type asteroid by Pan-STARRS{{'}} photometric survey.[25]Rotation periodIn March 2009, a rotational lightcurve of Merope was obtained from photometric observations by astronomers at the Oakley Southern Sky Observatory in Australia. Lightcurve analysis gave a rotation period of 27.2 hours with a brightness variation of 0.20 magnitude ({{small|U=2}}).[16] In October 2012, astronomers at the Palomar Transient Factory in California measured a period 13.717 hours with an amplitude of 0.11 magnitude in the R-band ({{small|U=2}}),[15] which seems to be an alternative period solution (1:2 alias) of what the Australian astronomers had previously measured. Previous observations by Gino Farroni and by Federico Manzini from 2004 and 2005, respectively, have been provisional and of poor quality ({{small|U=1/1}}).[5][47] Diameter and albedoAccording to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's WISE telescope, Merope measures between 60.439 and 74.36 kilometers in diameter and its surface has an albedo between 0.03 and 0.053.[8][9][11][12][13][14] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0358 and a diameter of 67.11 kilometers based on an absolute magnitude of 10.1.[5] NamingThis minor planet was named after the nymph Merope from Greek mythology. She is one of the seven Pleiades, daughters of the Titan Atlas and the sea-nymph Pleione ({{small|AN 229;297}}).[2] Merope is also a bright star in the constellation of Taurus and one of the brightest members of the Pleiades star cluster, also known as the "Seven Sister". References1. ^1 2 3 {{cite book |title = Dictionary of Minor Planet Names – (1051) Merope |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 90 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1052 |chapter = (1051) Merope }} [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]2. ^1 2 3 4 {{cite web |title = 1051 Merope (1925 SA) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=1051 |accessdate = 21 March 2018}} 3. ^1 {{cite web |title = Asteroids and comets rotation curves – (1051) Merope |last = Behrend |first = Raoul |publisher = Geneva Observatory |url = http://obswww.unige.ch/~behrend/page3cou.html#001051 |accessdate = 21 March 2018}} 4. ^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 |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 }} 5. ^1 2 {{cite web |title = Small Bodies Data Ferret |work = Nesvorny HCM Asteroid Families V3.0 |url = https://sbntools.psi.edu/ferret/PropertySearch/familyForm.action |accessdate = 21 March 2018}} 6. ^1 {{Cite book |first1 = D. |last1 = Nesvorný |first2 = M. |last2 = Broz |first3 = V. |last3 = Carruba |date = December 2014 |title = Identification and Dynamical Properties of Asteroid Families |journal = Asteroids IV |pages = 297–321 |bibcode = 2015aste.book..297N |doi = 10.2458/azu_uapress_9780816532131-ch016 |arxiv = 1502.01628 |isbn = 9780816532131 }} 7. ^1 2 3 4 5 6 7 {{cite web |title = LCDB Data for (1051) Merope |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1051%7CMerope |accessdate = 21 March 2018}} 8. ^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. 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D. |last4 = Price |date = October 2004 |title = IRAS Minor Planet Survey V6.0 |url = https://sbn.psi.edu/pds/asteroid/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab |journal = NASA Planetary Data System |pages = IRAS-A-FPA-3-RDR-IMPS-V6.0 |bibcode = 2004PDSS...12.....T |access-date = 21 March 2018 |archive-url = https://web.archive.org/web/20160603231123/http://sbn.psi.edu/pds/asteroid/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab |archive-date = 3 June 2016 |dead-url = yes |df = dmy-all }} 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= 21 March 2018}} Online catalog 11. ^1 2 3 4 {{cite journal |display-authors = 6 |first1 = C. 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5 : Alauda asteroids|Discoveries by Karl Wilhelm Reinmuth|Minor planets named from Greek mythology|Named minor planets|Astronomical objects discovered in 1925 |
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