{{Short description|Carbonaceous Hilda asteroid}} {{Use dmy dates|date=October 2019}} {{Infobox planet | minorplanet = yes | name = 1877 Marsden | background = #D6D6D6 | image = | image_size = | caption = | discovery_ref = <ref name="jpldata" /> | discovered = 24 March 1971 | discoverer = C. J. van Houten<br />I. van Houten-G.<br />T. Gehrels | discovery_site = Palomar Obs. | mpc_name = (1877) Marsden | alt_names = 1971 FC{{·}}1950 TG<br />{{mp|1950 TT|2}} | named_after = Brian G. Marsden<br />{{small|(British astronomer)}}<ref name="springer" /> | mp_category = main-belt{{·}}Hilda<ref name="MPC-Marsden" /> | orbit_ref = <ref name="jpldata" /> | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 0 | observation_arc = 66.57 yr (24,315 days) | aphelion = 4.7626 AU | perihelion = 3.1251 AU | semimajor = 3.9439 AU | eccentricity = 0.2076 | period = 7.83 yr (2,861 days) | mean_anomaly = 244.81° | inclination = 17.551° | asc_node = 352.86° | arg_peri = 306.87° | tisserand = 2.9430 | dimensions = 34.01 km {{small|(derived)}}<ref name="lcdb" /><br />{{val|35.27|1.78}} km<ref name="AKARI" /><br />{{val|35.643|0.298}} km<ref name="Grav-2012a" /> | rotation = {{val|14.4|}} h<ref name="Dahlgren-1998" /> | albedo = 0.057 {{small|(assumed)}}<ref name="lcdb" /><br />{{val|0.07|0.01}}<ref name="Grav-2012a" /><br />{{val|0.082|0.009}}<ref name="AKARI" /> | spectral_type = D<ref name="Grav-2012a" />{{·}}C<ref name="lcdb" /> | abs_magnitude = 10.70<ref name="AKARI" />{{·}}10.9<ref name="jpldata" />{{·}}11.07<ref name="lcdb" /><ref name="Dahlgren-1998" /> }}
'''1877 Marsden''', provisional designation {{mp|1971 FC}}, is a carbonaceous Hildian asteroid from the outermost region of the asteroid belt, approximately 35 kilometers in diameter. It was discovered during the Palomar–Leiden Trojan survey in 1971, and named after British astronomer Brian Marsden.<ref name="springer" />
== Discovery ==
Marsden was discovered on 24 March 1971, by Dutch astronomer couple Ingrid and Cornelis van Houten at Leiden, on photographic plates taken by Dutch–American astronomer Tom Gehrels at Palomar Observatory, California.<ref name="MPC-Marsden" />
The discovery was made in a survey of faint Trojans (in spite of not having received a typical T-1 designation).<ref name="jpldata" /> The trio of Dutch and Dutch–American astronomers collaborated on the productive Palomar–Leiden survey in the 1960s, using the same procedure as for this smaller Trojan campaign: Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Cornelis and Ingrid van Houten at Leiden Observatory where blinking and astrometry was carried out.
== Orbit and classification ==
Marsden is a member of the Hilda family.<ref name="Grav-2012a" /> It orbits the Sun in the outermost main-belt at a distance of 3.1–4.8 AU once every 7 years and 10 months (2,861 days). Its orbit has an eccentricity of 0.21 and an inclination of 18° with respect to the ecliptic.<ref name="jpldata" />
== Physical characteristics ==
This asteroid has been characterized as a dark C-type and D-type asteroid.<ref name="lcdb" /><ref name="Grav-2012a" />
=== Rotation period ===
During a photometric survey of Hilda asteroids in the late 1990s, an obtained light curve for Marsden gave a rotation period of 14.4 hours with a brightness variation of 0.22 in magnitude ({{small|U=2}}).<ref name="Dahlgren-1998" />
=== Diameter and albedo ===
According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Marsden measures 35.27 and 35.643 kilometers in diameter and its surface has an albedo of 0.082 and 0.07, respectively.<ref name="AKARI" /><ref name="Grav-2012a" /> The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and derives a diameter of 34.01 kilometers with an absolute magnitude of 11.07.<ref name="lcdb" />
== Naming ==
This minor planet was named in honor of British astronomer Brian Marsden (1937–2010), director of the Minor Planet Center (MPC) at the Harvard–Smithsonian Center for Astrophysics, in recognition of his numerous contributions in the field of orbit calculations for comets and minor planets.<ref name="springer" /> The official {{MoMP|1877|naming citation}} was published by the Minor Planet Center on 1 June 1975 ({{small|M.P.C. 3826}}).<ref name="DoMP-Circular-dates" />
== References == {{reflist|30em|refs=
<ref name="jpldata">{{cite web |type = 2017-05-01 last obs. |title = JPL Small-Body Database Browser: 1877 Marsden (1971 FC) |url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001877 |publisher = Jet Propulsion Laboratory |accessdate = 9 June 2017}}</ref>
<ref name="springer">{{cite book |last = Schmadel | first = Lutz D. |title = Dictionary of Minor Planet Names |publisher = Springer Berlin Heidelberg |page = 150 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1878 |chapter = (1877) Marsden }}</ref>
<ref name="MPC-Marsden">{{cite web |title = 1877 Marsden (1971 FC) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=1877 |accessdate = 11 December 2016}}</ref>
<ref name="DoMP-Circular-dates">{{cite book |title = Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) |chapter = Appendix – Publication Dates of the MPCs |last = Schmadel |first=Lutz D. |year = 2009 |publisher = Springer Berlin Heidelberg |page = 221 |isbn = 978-3-642-01964-7 |doi = 10.1007/978-3-642-01965-4|bibcode = 2009dmpn.book.....S }}</ref>
<ref name="lcdb">{{cite LCDB|number = 1877 |accessdate = 11 December 2016}}</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= }} ([http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-source=J/PASJ/63/1117/acua_v1&Num=1877 online], [https://core.ac.uk/download/pdf/43545172.pdf AcuA catalog p. 153])</ref>
<ref name="Dahlgren-1998">{{Cite journal |display-authors = 6 |first1 = M. |last1 = Dahlgren |first2 = J. F. |last2 = Lahulla |first3 = C.-I. |last3 = Lagerkvist |first4 = J. |last4 = Lagerros |first5 = S. |last5 = Mottola |first6 = A. |last6 = Erikson |first7 = M. |last7 = Gonano-Beurer |first8 = M. |last8 = Di Martino |date = June 1998 |title = A Study of Hilda Asteroids. V. Lightcurves of 47 Hilda Asteroids |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1998Icar..133..247D |journal = Icarus |volume = 133 |issue = 2 |pages = 247–285 |bibcode = 1998Icar..133..247D |doi = 10.1006/icar.1998.5919 |access-date= 11 December 2016}}</ref>
<ref name="Grav-2012a">{{Cite journal |display-authors = 6 |first1 = T. |last1 = Grav |first2 = A. K. |last2 = Mainzer |first3 = J. |last3 = Bauer |first4 = J. |last4 = Masiero |first5 = T. |last5 = Spahr |first6 = R. S. |last6 = McMillan |first7 = R. |last7 = Walker |first8 = R. |last8 = Cutri |first9 = E. |last9 = Wright |first10 = P. R. |last10 = Eisenhardt |first11 = E. |last11 = Blauvelt |first12 = E. |last12 = DeBaun |first13 = D. |last13 = Elsbury |first14 = T. |last14 = Gautier |first15 = S. |last15 = Gomillion |first16 = E. |last16 = Hand |first17 = A. |last17 = Wilkins |date = January 2012 |title = WISE/NEOWISE Observations of the Hilda Population: Preliminary Results |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...744..197G |journal = The Astrophysical Journal |volume = 744 |issue = 2 |page = 15 |bibcode = 2012ApJ...744..197G |doi = 10.1088/0004-637X/744/2/197 |arxiv = 1110.0283 |s2cid = 44000310 |access-date= 11 December 2016}}</ref>
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== 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|1877}} * {{JPL small body}}
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{{DEFAULTSORT:Marsden}} 001877 Category:Discoveries by Cornelis Johannes van Houten Category:Discoveries by Ingrid van Houten-Groeneveld Category:Discoveries by Tom Gehrels Category:Named minor planets 19710324