{{Short description|Main-belt asteroid}} {{For|the character in The Adventures of Tintin|Bianca Castafiore}} {{Use dmy dates|date=October 2019}} {{Infobox planet | minorplanet = yes | name = 1683 Castafiore | background = #D6D6D6 | image = 001683-asteroid shape model (1683) Castafiore.png | image_scale = | caption = Shape model of Castafiore from its lightcurve | discovery_ref = <ref name="jpldata" /> | discovered = 19 September 1950 | discoverer = S. Arend | discovery_site = Uccle Obs. | mpc_name = (1683) Castafiore | alt_names = 1950 SL{{·}}1936 PH<br />1949 HA{{·}}1959 TH | named_after = Bianca Castafiore<br />{{small|(fictional character)}}<ref name="springer" /> | mp_category = main-belt{{·}}{{small|(middle)}}<ref name="lcdb" /> | orbit_ref = <ref name="jpldata" /> | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 0 | observation_arc = 80.55 yr (29,420 days) | aphelion = 3.2165 AU | perihelion = 2.2554 AU | semimajor = 2.7360 AU | eccentricity = 0.1756 | period = 4.53 yr (1,653 days) | mean_anomaly = 331.16° | mean_motion = {{Deg2DMS|0.2178|sup=ms}} / day | inclination = 12.476° | asc_node = 326.66° | arg_peri = 346.87° | dimensions = {{val|18.42|0.79}} km<ref name="Masiero-2012" /><br />{{val|21.159|0.114}}<ref name="Masiero-2014" /><br />{{val|21.403|0.075}} km<ref name="WISE" /><br />25.44 km {{small|(calculated)}}<ref name="lcdb" /> | rotation = {{val|13.931|0.003}} h{{efn|name=LCDB-Pray-2011}} | albedo = 0.057 {{small|(assumed)}}<ref name="lcdb" /><br />{{val|0.0888|0.0159}}<ref name="WISE" /><br />{{val|0.119|0.017}}<ref name="Masiero-2012" /><br />{{val|0.160|0.013}}<ref name="Masiero-2014" /> | spectral_type = C<ref name="lcdb" /> | abs_magnitude = 11.6<ref name="Masiero-2012" /><ref name="WISE" />{{·}}{{val|11.66|0.46}}<ref name="Veres-2015" />{{·}}11.7<ref name="jpldata" /><ref name="lcdb" /> }}
'''1683 Castafiore''', provisional designation {{mp|1950 SL}}, is a carbonaceous background asteroid from the central region of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 19 September 1950, by Belgian astronomer Sylvain Arend at Royal Observatory of Belgium in Uccle, Belgium, and named after the character Bianca Castafiore from ''The Adventures of Tintin''.<ref name="MPC-Castafiore" />
== Orbit and classification ==
The C-type asteroid orbits the Sun in the middle main-belt at a distance of 2.3–3.2 AU once every 4 years and 6 months (1,653 days). Its orbit has an eccentricity of 0.18 and an inclination of 12° with respect to the ecliptic.<ref name="jpldata" />
== Naming ==
This minor planet was named for Bianca Castafiore, a fictional character in the comic-strip ''Adventures of Tintin'' .<ref name="springer" /> On the occasion of his seventy-fifth birthday, the father of the fictional character, Georges Remi, better known under his pseudonym Hergé, was honoured by the minor planet 1652 Hergé.<ref name="springer-Herge" /> The approved naming citation was published by the Minor Planet Center on 8 April 1982 ({{small|M.P.C. 6832}}).<ref name="MPC-Circulars-Archive" />
== Physical characteristics ==
=== Rotation period ===
In September 2004, American astronomer Donald P. Pray obtained a rotational lightcurve of Castafiore from photometric observations. It gave a rotation period of 13.931 hours with a brightness variation of 0.66 magnitude ({{small|U=2+}}).{{efn|name=LCDB-Pray-2011}}
=== Diameter and albedo ===
According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Castafiore measures 21.15 kilometers in diameter and its surface has an albedo of 0.160 (best result only),<ref name="Masiero-2014" /> while the ''Collaborative Asteroid Lightcurve Link'' assumes a standard albedo for carbonaceous asteroids of 0.057, and calculates a diameter of 25.44 kilometers with an absolute magnitude of 11.7.<ref name="lcdb" />
== Notes == {{notelist|refs=
{{efn|name=LCDB-Pray-2011|Pray (2011): rotation period of {{val|13.931|0.003}} hours with an amplitude in brightness of {{val|0.66}} in magnitude. Summary figure given at {{URL|1=http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1683%7CCastafiore|2=Light curve Database for (1683) Castafiore}} }}
}} <!-- end of notelist -->
== References == {{reflist|30em|refs=
<ref name="jpldata">{{cite web |type = 2017-02-25 last obs. |title = JPL Small-Body Database Browser: 1683 Castafiore (1950 SL) |url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001683 |archive-url = https://web.archive.org/web/20161223063152/http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001683 |url-status = dead |archive-date = 23 December 2016 |publisher = Jet Propulsion Laboratory |accessdate = 1 July 2017}}</ref>
<ref name="springer">{{cite book |last = Schmadel | first = Lutz D. |title = Dictionary of Minor Planet Names |publisher = Springer Berlin Heidelberg |page = 134 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1684 |chapter = (1683) Castafiore }}</ref>
<ref name="springer-Herge">{{cite book |last = Schmadel | first = Lutz D. |title = Dictionary of Minor Planet Names |publisher = Springer Berlin Heidelberg |page = 131 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1653 |chapter = (1652) Hergé }}</ref>
<ref name="MPC-Castafiore">{{cite web |title = 1683 Castafiore (1950 SL) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=1683 |accessdate = 22 December 2016}}</ref>
<ref name="MPC-Circulars-Archive">{{cite web |title = MPC/MPO/MPS Archive |work = Minor Planet Center |url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html |accessdate = 22 December 2016}}</ref>
<ref name="lcdb">{{cite LCDB|number = 1683 |accessdate = 22 December 2016}}</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|s2cid = 35447010 }}</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 |s2cid = 46350317 |access-date= 22 December 2016}}</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= 22 December 2016}}</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 |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 |s2cid = 119293330 |access-date= 22 December 2016}}</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|1683}} * {{JPL small body}}
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{{DEFAULTSORT:Castafiore}} 001683 Category:Discoveries by Sylvain Arend Category:Named minor planets Category:The Adventures of Tintin 19500919