{{Short description|Main-belt asteroid}} {{Use dmy dates|date=October 2019}} {{Infobox planet | minorplanet = yes | name = 1340 Yvette | background = #D6D6D6 | image = | image_size = | caption = | discovery_ref = <ref name="jpldata" /> | discoverer = L. Boyer | discovery_site = Algiers Obs. | discovered = 27 December 1934 | mpc_name = (1340) Yvette | alt_names = 1934 YA{{·}}1930 DO<br />1942 GW | pronounced = | named_after = Yvette {{small|(discoverer's niece)}}<ref name="springer" /> | mp_category = main-belt{{·}}{{small|(outer)}}<br />Themis<ref name="lcdb" /><ref name="Ferret" /> | orbit_ref = <ref name="jpldata" /> | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 0 | observation_arc = 82.84 yr (30,256 days) | aphelion = 3.5930 AU | perihelion = 2.7754 AU | semimajor = 3.1842 AU | eccentricity = 0.1284 | period = 5.68 yr (2,075 days) | mean_anomaly = 123.54° | mean_motion = {{Deg2DMS|0.1735|sup=ms}} / day | inclination = 0.4161° | asc_node = 345.69° | arg_peri = 224.26° | dimensions = {{val|25.87|2.6}} km<ref name="SIMPS" /><br />{{val|28.40|1.70}} km<ref name="AKARI" /><br />{{val|28.63|0.55}} km<ref name="Masiero-2012" /><br />{{val|29.451|0.278}} km<ref name="Masiero-2014" /><br />{{val|30.3|3.0}} km<ref name="Ali-Lagoa-2016" /><br />{{val|32|3}} km<ref name="Ali-Lagoa-2013" /><br />{{val|33.061|0.632}} km<ref name="WISE" /> | rotation = {{val|3.525|}} h<ref name="Alvarez-2004" /> | albedo = {{val|0.0587|0.0044}}<ref name="WISE" /><br />{{val|0.06|0.01}}<ref name="Ali-Lagoa-2013" /><br />{{val|0.07|0.01}}<ref name="Ali-Lagoa-2016" /><br />{{val|0.078|0.018}}<ref name="Masiero-2012" /><br />{{val|0.082|0.011}}<ref name="AKARI" /><br />{{val|0.095|0.015}}<ref name="Masiero-2014" /><br />{{val|0.0958|0.023}}<ref name="SIMPS" /> | spectral_type = C<ref name="lcdb" /><ref name="Veres-2015" /> | abs_magnitude = 11.10<ref name="jpldata" /><ref name="lcdb" /><ref name="SIMPS" /><ref name="AKARI" /><ref name="Masiero-2012" /><ref name="Ali-Lagoa-2016" /><ref name="Ali-Lagoa-2013" /><ref name="WISE" />{{·}}{{val|11.12|0.29}}<ref name="Veres-2015" /> }}

'''1340 Yvette''', provisional designation {{mp|1934 YA}}, is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt, approximately 29 kilometers in diameter. It was discovered on 27 December 1934, by astronomer Louis Boyer at the Algiers Observatory, who named it after his niece, Yvette.<ref name="springer" /><ref name="MPC-object" />

== Orbit and classification ==

''Yvette'' is a Themistian asteroid that belongs to the Themis family ({{small|602}}),<ref name="lcdb" /><ref name="Ferret" /> a very large family of nearly 5,000 member asteroids, named after 24&nbsp;Themis.<ref name="Nesvorny-2014" />{{rp|23}} It orbits the Sun in the outer main belt at a distance of 2.8–3.6&nbsp;AU once every 5 years and 8 months (2,075 days; semi-major axis of 3.18&nbsp;AU). Its orbit has an eccentricity of 0.13 and an inclination of 0° with respect to the ecliptic.<ref name="jpldata" />

The asteroid was first identified as {{mp|1930 DO}} at Heidelberg Observatory in February 1930. The body's observation arc begins with its official discovery observation at Algiers in 1934.<ref name="MPC-object" />

== Physical characteristics ==

''Yvette'' has been characterized as a carbonaceous C-type asteroid by Pan-STARRS photometric survey,<ref name="Veres-2015" /> in line with the overall spectral type of the Themis family.<ref name="Nesvorny-2014" />{{rp|23}}

=== Rotation period ===

Published in 2004, a first rotational lightcurve of ''Yvette'' was obtained from photometric observations by Brazilian and Argentinian astronomers. Lightcurve analysis gave a relatively short rotation period of 3.525 hours with a brightness amplitude of 0.16 magnitude ({{small|U=2}}).<ref name="Alvarez-2004" />

=== Diameter and albedo ===

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, ''Yvette'' measures between 25.87 and 33.061 kilometers in diameter and its surface has an albedo between 0.0587 and 0.0958.<ref name="SIMPS" /><ref name="AKARI" /><ref name="Masiero-2012" /><ref name="Masiero-2014" /><ref name="Ali-Lagoa-2016" /><ref name="Ali-Lagoa-2013" /><ref name="WISE" />

The ''Collaborative Asteroid Lightcurve Link'' adopts the results obtained by IRAS, that is an albedo of 0.0958 and a diameter of 25.87 kilometers based on an absolute magnitude of 11.1.<ref name="lcdb" /><ref name="SIMPS" />

== Naming ==

This minor planet was named by the discoverer in honor of his niece, Yvette. The official naming citation was mentioned in ''The Names of the Minor Planets'' by Paul Herget in 1955 ({{small|H 122}}).<ref name="springer" />

== References == {{reflist|30em|refs=

<ref name="jpldata">{{cite web |type = 2017-10-28 last obs. |title = JPL Small-Body Database Browser: 1340 Yvette (1934 YA) |url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001340 |publisher = Jet Propulsion Laboratory |accessdate = 28 November 2017}}</ref>

<ref name="springer">{{cite book |last = Schmadel | first = Lutz D. |title = Dictionary of Minor Planet Names |publisher = Springer Berlin Heidelberg |page = 109 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1341 |chapter = (1340) Yvette }}</ref>

<ref name="MPC-object">{{cite web |title = 1340 Yvette (1934 YA) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=1340 |accessdate = 28 November 2017}}</ref>

<ref name="Masiero-2014">{{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}}</ref>

<ref name="Ferret">{{cite web |title = Asteroid 1340 Yvette – Nesvorny HCM Asteroid Families V3.0 |work = Small Bodies Data Ferret |url = https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1340+Yvette#Asteroid%201340%20YvetteEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 |accessdate = 26 October 2019}}</ref>

<ref name="Nesvorny-2014">{{Cite book |first1 = D. |last1 = Nesvorný |first2 = M. |last2 = Broz |first3 = V. |last3 = Carruba |date = December 2014 |chapter = Identification and Dynamical Properties of Asteroid Families |title = Asteroids IV |pages = 297–321 |bibcode = 2015aste.book..297N |doi = 10.2458/azu_uapress_9780816532131-ch016 |arxiv = 1502.01628 |isbn = 9780816532131}}</ref>

<ref name="lcdb">{{cite LCDB|number = 1340 |accessdate = 28 November 2017}}</ref>

<ref name="Masiero-2012">{{cite journal |display-authors = 6 |first1 = Joseph R. |last1 = Masiero |first2 = A. K. |last2 = Mainzer |first3 = T. |last3 = Grav |first4 = J. M. |last4 = Bauer |first5 = R. M. |last5 = Cutri |first6 = C. |last6 = Nugent |first7 = M. S. |last7 = Cabrera |date = November 2012 |title = Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M |journal = The Astrophysical Journal Letters |volume = 759 |issue = 1 |page = 5 |bibcode = 2012ApJ...759L...8M |doi = 10.1088/2041-8205/759/1/L8 |arxiv = 1209.5794 |access-date= 28 November 2017}}</ref>

<ref name="Ali-Lagoa-2013">{{Cite journal |display-authors = 6 |first1 = V. |last1 = Alí-Lagoa |first2 = J. |last2 = de León |first3 = J. |last3 = Licandro |first4 = M. |last4 = Delbó |first5 = H. |last5 = Campins |first6 = N. |last6 = Pinilla-Alonso |first7 = M. S. |last7 = Kelley |date = June 2013 |title = Physical properties of B-type asteroids from WISE data |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2013A&A...554A..71A |journal = Astronomy and Astrophysics |volume = 554 |page = 16 |bibcode = 2013A&A...554A..71A |doi = 10.1051/0004-6361/201220680 |arxiv = 1303.5487 |access-date= 28 November 2017}}</ref>

<ref name="WISE">{{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}}</ref>

<ref name="Ali-Lagoa-2016">{{Cite journal |display-authors = 6 |first1 = V. |last1 = Alí-Lagoa |first2 = J. |last2 = Licandro |first3 = R. |last3 = Gil-Hutton |last4 = Cañ |first5 = M. |last5 = ada-Assandri |first6 = M. |last6 = Delbo' |first7 = J. |last7 = de León |first8 = H. |last8 = Campins |first9 = N. |last9 = Pinilla-Alonso |first10 = M. S. P. |last10 = Kelley |first11 = J. |last11 = Hanus |date = June 2016 |title = Differences between the Pallas collisional family and similarly sized B-type asteroids |journal = Astronomy and Astrophysics |volume = 591 |page = 11 |bibcode = 2016A&A...591A..14A |doi = 10.1051/0004-6361/201527660 |doi-access= free |hdl= 11336/63614 |hdl-access= free }}</ref>

<ref name="SIMPS">{{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 = https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab |journal = NASA Planetary Data System |volume = 12 |pages = IRAS-A-FPA-3-RDR-IMPS-V6.0 |bibcode = 2004PDSS...12.....T |accessdate = 22 October 2019}}</ref>

<ref name="AKARI">{{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 |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 |doi-access= free }} ([http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-source=J/PASJ/63/1117/acua_v1&Num=1340 online], [https://core.ac.uk/download/pdf/43545172.pdf AcuA catalog p. 153])</ref>

<ref name="Alvarez-2004">{{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 = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2004Icar..172..388A |journal = Icarus |volume = 172 |issue = 2 |pages = 388–401 |bibcode = 2004Icar..172..388A |doi = 10.1016/j.icarus.2004.06.008 |access-date= 28 November 2017}}</ref>

<ref name="Veres-2015">{{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 |s2cid = 53493339 |access-date= 28 November 2017}}</ref>

}} <!-- end of reflist -->

== External links == * [http://www.minorplanet.info/PHP/lcdbsummaryquery.php Asteroid Lightcurve Database (LCDB)], query form ([http://www.minorplanet.info/lightcurvedatabase.html info] {{Webarchive|url=https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html |date=16 December 2017 }}) * [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books * [http://obswww.unige.ch/~behrend/page_cou.html Asteroids and comets rotation curves, CdR] – Observatoire de Genève, Raoul Behrend * [https://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html Discovery Circumstances: Numbered Minor Planets (1)-(5000)] – Minor Planet Center * {{AstDys|1340}} * {{JPL small body}}

{{Minor planets navigator |1339 Désagneauxa |number=1340 |1341 Edmée}} {{Small Solar System bodies}} {{Authority control}}

{{DEFAULTSORT:Yvette}} 001340 Category:Discoveries by Louis Boyer (astronomer) Category:Named minor planets 19341227