| 词条 | 1158 Luda |
| 释义 |
| minorplanet = yes | name = 1158 Luda | background = #D6D6D6 | image = | caption = | discovery_ref = | discovered = 31 August 1929 | discoverer = G. Neujmin | discovery_site = Simeiz Obs. | mpc_name = (1158) Luda | alt_names = 1929 QF{{·}}{{mp|1954 UQ|1}} {{mp|1958 TG|1}}{{·}}1972 GC | pronounced = | named_after = Ludmilla Neujmin {{small|(discoverer's sister)}}[2] | mp_category = main-belt{{·}}Maria [3]{{·}}Eunomia [4] | orbit_ref = | epoch = 16 February 2017 (JD 2457800.5) | uncertainty = 0 | observation_arc = 87.27 yr (31,876 days) | aphelion = 2.8532 AU | perihelion = 2.2742 AU | semimajor = 2.5637 AU | eccentricity = 0.1129 | period = 4.11 yr (1,499 days) | mean_anomaly = 56.051° | mean_motion = {{Deg2DMS|0.2401|sup=ms}} / day | inclination = 14.834° | asc_node = 344.74° | arg_peri = 56.226° | dimensions = {{val|18.636|0.207}} km[6] {{val|18.70|0.48}} km[7] {{val|19.06|0.8}} km {{small|(IRAS:8)}}[8] {{val|20.596|0.130}} km[9] | rotation = {{val|6.86|0.01}} h[10] {{val|6.863|0.005}} h[11] {{val|6.870|0.005}} h[12] {{val|6.90|0.01}} h[13] {{val|7.44|}} h[3] | albedo = {{val|0.2025|0.0548}}[9] {{val|0.221|0.034}}[6] {{val|0.2329|0.022}} {{small|(IRAS:8)}}[8] {{val|0.253|0.015}}[7] | spectral_type = S [4][20] | abs_magnitude = 10.8[4][7][8][9]{{·}}{{val|10.95|0.33}}[20] }}1158 Luda, provisional designation {{mp|1929 QF}}, is a stony asteroid from the middle regions of the asteroid belt, approximately 19 kilometers in diameter. It was discovered on 31 August 1929, by Soviet astronomer Grigory Neujmin at Simeiz Observatory on the Crimean peninsula.[27] It was named after Ludmilla Neujmin, the sister of the discoverer.[2] Orbit and classificationLuda orbits the Sun at a distance of 2.3–2.9 AU once every 4 years and 1 month (1,499 days). Its orbit has an eccentricity of 0.11 and an inclination of 15° with respect to the ecliptic. The body's observation arc begins with its first used observation at Johannesburg Observatory, one month after its official discovery observation at Simeiz.[27] Luda is a stony S-type asteroid.[20]Based on its orbital elements, Luda is a member of the Eunomia family, a large group of stony asteroids and the most prominent family in the intermediate main-belt, while Argentine astronomer Alvarez-Candal from the Universidad Nacional de Córdoba groups it into the smaller Maria family, which is named after 170 Maria (the same discrepancy exists for 9175 Graun and 2429 Schürer).[3]{{rp|389}} Physical characteristicsPhotometrySeveral rotational lightcurves of Luda were obtained from photometric observations. Analysis of the best-rated lightcurves obtained by French amateur astronomer Laurent Bernasconi, American astronomer Brian Warner, and an international group lead by Korean astronomers, gave a well-defined rotation period between 6.86 and 6.87 hours with a brightness variation between 0.13 and 0.22 magnitude ({{small|U=3/3-/3}}).[10][11][12] Photometric observations also gave a period of 6.9 and 7.44 hours, but these were derived from a fragmentary and ambiguous light curve, respectively.({{small|U=1/2}}).[3][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, Luda measures between 18.63 and 20.59 kilometers in diameter and its surface has an albedo between 0.20 and 0.25.[6][7][8][9] The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.232 and a diameter of 19.06 kilometers with an absolute magnitude of 10.8.[4] NamingThis minor planet was named for Ludmilla Neujmin, the sister of the discoverer. "Luda" is a diminutive of Ludmilla.[2] Astronomer Lutz Schmadel, who compiled this naming citation, based it on a private communication with "N. S. Samojlova-Yakhontova", as neither the Minor Planet Circulars nor The Names of the Minor Planets give any information about this asteroid's name.[2][45] References1. ^1 2 3 4 {{cite book |title = Dictionary of Minor Planet Names – (1158) Luda |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 98 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1159 |chapter = (1158) Luda }} [1][2][3][4][5][6][7][8][9][10][11][12][13][14]2. ^1 {{cite book |title = Dictionary of Minor Planet Names – Introduction, Source of Information |last = Schmadel |first=Lutz D. |publisher = Springer Berlin Heidelberg |page = 16 |date = 1997 |url = https://books.google.com/books?id=eHv1CAAAQBAJ&pg=PA16#v=onepage&q&f=false |isbn = 978-3-662-06617-1 |accessdate = 18 May 2016}} 3. ^1 2 {{cite web |title = 1158 Luda (1929 QF) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1158 |accessdate = 25 January 2017}} 4. ^1 2 {{cite web |title = Asteroids and comets rotation curves – (1158) Luda |last = Behrend |first = Raoul |publisher = Geneva Observatory |url = http://obswww.unige.ch/~behrend/page3cou.html#001158 |accessdate = 25 January 2017}} 5. ^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= 25 January 2017}} 6. ^1 2 3 4 {{cite web |title = LCDB Data for (1158) Luda |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1158%7CLuda |accessdate = 25 January 2017}} 7. ^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= 25 January 2017}} 8. ^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= 25 January 2017}} 9. ^1 2 3 4 {{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 }} 10. ^1 2 {{Cite journal |author = Warner, Brian D. |date = September 2005 |title = Asteroid lightcurve analysis at the Palmer Divide Observatory - winter 2004-2005 |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2005MPBu...32...54W |journal = The Minor Planet Bulletin |volume = 32 |issue = 3 |pages = 54–58 |issn = 1052-8091 |bibcode = 2005MPBu...32...54W |access-date= 25 January 2017}} 11. ^1 2 3 4 {{Cite journal |first1 = Alvaro |last1 = Alvarez-Candal |first2 = René |last2 = Duffard |first3 = Cláudia A. |last3 = Angeli |first4 = Daniela |last4 = Lazzaro |first5 = Silvia |last5 = Fernández |date = December 2004 |title = Rotational lightcurves of asteroids belonging to families |url = https://www.researchgate.net/publication/221956231 |journal = Icarus |volume = 172 |issue = 2 |pages = 388–401 |bibcode = 2004Icar..172..388A |doi = 10.1016/j.icarus.2004.06.008 |access-date= 25 January 2017}} 12. ^1 2 {{Cite journal |author = Warner, Brian D. |date = January 2011 |title = Upon Further Review: III. 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C. |last15 = Hinse |first16 = Z. |last16 = Eker |first17 = J.-H. |last17 = Park |date = March 2014 |title = Rotational Properties of the Maria Asteroid Family |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014AJ....147...56K |journal = The Astronomical Journal |volume = 147 |issue = 3 |page = 15 |bibcode = 2014AJ....147...56K |doi = 10.1088/0004-6256/147/3/56 |arxiv = 1311.5318 |access-date= 25 January 2017}} 14. ^1 2 3 {{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= 25 January 2017}} }} External links
7 : Maria asteroids|Eunomia asteroids|Discoveries by Grigory Neujmin|Minor planets named for people|Named minor planets|S-type asteroids|Astronomical objects discovered in 1929 |
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