1097 Vicia

{{Short description|Main-belt asteroid}} {{Use dmy dates|date=October 2019}} {{Infobox planet | minorplanet = yes | name = 1097 Vicia | background = #D6D6D6 | image = | image_size = | caption = | discovery_ref = <ref name="jpldata" /> | discoverer = K. Reinmuth | discovery_site = Heidelberg Obs. | discovered = 11 August 1928 | mpc_name = (1097) Vicia | alt_names = 1928 PC{{·}}{{mp|1941 SO|2}} 1958 PF{{·}}1978 BG A907 VF | pronounced = {{IPAc-en|'|v|I|s|i|@|,_|-|S|i|@}}<ref>{{MW|Vicia}}</ref> | named_after = ''Vicia'' {{small|(flowering plant)}}<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 = 109.40 yr (39,958 days) | aphelion = 3.4186 AU | perihelion = 1.8697 AU | semimajor = 2.6441 AU | eccentricity = 0.2929 | period = 4.30 yr (1,570 days) | mean_anomaly = 274.05° | mean_motion = {{Deg2DMS|0.2292|sup=ms}} / day | inclination = 1.5332° | asc_node = 133.86° | arg_peri = 176.51° | dimensions = {{val|19.63|6.08}} km<ref name="Nugent-2015" /> 21.02 km {{small|(derived)}}<ref name="lcdb" /> {{val|23.110|0.118}} km<ref name="Masiero-2012" /> {{val|23.95|1.04}} km<ref name="Nugent-2016" /> {{val|24.93|0.54}} km<ref name="AKARI" /> {{val|26.55|0.35}} km<ref name="Masiero-2012" /> | rotation = {{val|26.5|0.1}} h<ref name="Gartrelle-2012" /> | albedo = {{val|0.031|0.004}}<ref name="Masiero-2012" /> {{val|0.04|0.00}}<ref name="Nugent-2016" /> {{val|0.044|0.007}}<ref name="Masiero-2012" /> {{val|0.05|0.02}}<ref name="Nugent-2015" /> {{val|0.060|0.003}}<ref name="AKARI" /> 0.0695 {{small|(derived)}}<ref name="lcdb" /> | spectral_type = S/C<ref name="lcdb" /> | abs_magnitude = 11.70<ref name="AKARI" />{{·}}11.90<ref name="lcdb" /><ref name="Nugent-2015" /><ref name="Masiero-2012" />{{·}}12.0<ref name="jpldata" />{{·}}{{val|12.14|0.26}}<ref name="Veres-2015" />{{·}}12.20<ref name="Nugent-2016" /> }}

'''1097 Vicia''', provisional designation {{mp|1928 PC}}, is an asteroid from the central regions of the asteroid belt, approximately 23 kilometers in diameter. Discovered by Karl Reinmuth at the Heidelberg Observatory in 1928, the asteroid was later named after the flowering plant ''Vicia'', commonly known as vetches.

== Discovery ==

''Vicia'' was discovered by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany on 11 August 1928.<ref name="MPC-object" /> On 15 and 22 August, the asteroid was independently discovered by Soviet astronomer Pelageya Shajn at Simeiz Observatory on the Crimean peninsula, and by English astronomer Harry Edwin Wood at the Johannesburg Observatory in South Africa, respectively.<ref name="springer" /> However, the Minor Planet Center only recognizes the first discoverer.<ref name="MPC-object" />

The asteroid was first identified as {{mp|A907 VF}} at Heidelberg in May 1907. The body's observation arc begins at Heidelberg in August 1928, six nights after its official discovery observation.<ref name="MPC-object" />

== Orbit and classification ==

''Vicia'' is a non-family asteroid from the main belt's background population. It orbits the Sun in the central main belt at a distance of 1.9–3.4 AU once every 4 years and 4 months (1,570 days). Its orbit has an eccentricity of 0.29 and an inclination of 2° with respect to the ecliptic.<ref name="jpldata" />

== Physical characteristics ==

''Vicia'' spectral type has not been determined. Asteroids in the central main belt with a semi-major axis between 2.6 and 2.7 AU, are located in a transitional region where both stony and carbonaceous asteroids are frequent and generic assumptions are difficult.<ref name="lcdb" />{{efn|name=lcdb-readme}}

=== Rotation period ===

In November 2010, a rotational lightcurve of ''Vicia'' was obtained from photometric observations by Gordon Gartrelle at the University of North Dakota ({{small|730}}) and at the Badlands Observatory in North Dakota, United States. Analysis of the fragmentary lightcurve gave a rotation period of 26.5 hours with a brightness variation of 0.08 magnitude, indicative for a spherical rather than irregular and elongated shape ({{small|U=1}}).<ref name="Gartrelle-2012" /> As of 2017, however, no other lightcurve has been obtained and ''Vicia''{{'}}s rotation period has not yet been secured.<ref name="lcdb" />

=== Diameter and albedo ===

According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, ''Vicia'' measures between 19.63 and 26.55 kilometers in diameter and its surface has an albedo between 0.031 and 0.060.<ref name="Nugent-2015" /><ref name="Masiero-2012" /><ref name="Nugent-2016" /><ref name="AKARI" />

The ''Collaborative Asteroid Lightcurve Link'' derives an albedo of 0.0695 and a diameter of 21.02 kilometers based on an absolute magnitude of 11.9.<ref name="lcdb" />

== Naming ==

This minor planet was named after the flowering plant ''Vicia'', member of the Fabaceae (legume family). It is commonly known as vetches. The official naming citation was mentioned in ''The Names of the Minor Planets'' by Paul Herget in 1955 ({{small|H 103}}).<ref name="springer" />

=== Reinmuth's flowers ===

Due to his many discoveries, Karl Reinmuth submitted a large list of 66 newly named asteroids in the early 1930s. The list covered his discoveries with numbers between {{MoMP|1009|(1009)}} and {{MoMP|1200|(1200)}}. This list also contained a sequence of 28 asteroids, starting with 1054 Forsytia, that were all named after plants, in particular flowering plants ''(also see list of minor planets named after animals and plants)''.<ref name="springer-flowers" />

== Notes == {{notelist|refs=

{{efn|name=lcdb-readme|1=For central-belt asteroids with 2.6 < a < 2.7, the LCDB assumes an "S/C" class with an albedo of 0.10, a compromise between the stony (p=0.20) and carbonaceous (p=0.057) asteroids}}

}}

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

<ref name="jpldata">{{cite web |type = 2017-03-30 last obs. |title = JPL Small-Body Database Browser: 1097 Vicia (1928 PC) |url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001097 |archive-url = https://web.archive.org/web/20200819121051/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001097 |url-status = dead |archive-date = 19 August 2020 |publisher = Jet Propulsion Laboratory |accessdate = 19 September 2017}}</ref>

<ref name="springer">{{cite book |title = Dictionary of Minor Planet Names – (1097) Vicia |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 93 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1098 |chapter = (1097) Vicia }}</ref>

<ref name="springer-flowers">{{cite book |title = Dictionary of Minor Planet Names – (1054) Forsytia |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_1055 |chapter = (1054) Forsytia }}</ref>

<ref name="MPC-object">{{cite web |title = 1097 Vicia (1928 PC) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=1097 |accessdate = 19 September 2017}}</ref>

<ref name="lcdb">{{cite LCDB|number = 1097 |accessdate = 19 September 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 |s2cid = 46350317 |access-date= 19 September 2017}}</ref>

<ref name="Nugent-2015">{{cite journal |display-authors = 6 |first1 = C. R. |last1 = Nugent |first2 = A. |last2 = Mainzer |first3 = J. |last3 = Masiero |first4 = J. |last4 = Bauer |first5 = R. M. |last5 = Cutri |first6 = T. |last6 = Grav |first7 = E. |last7 = Kramer |first8 = S. |last8 = Sonnett |first9 = R. |last9 = Stevenson |first10 = E. L. |last10 = Wright |date = December 2015 |title = NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015ApJ...814..117N |journal = The Astrophysical Journal |volume = 814 |issue = 2 |page = 13 |bibcode = 2015ApJ...814..117N |doi = 10.1088/0004-637X/814/2/117 |arxiv = 1509.02522 |s2cid = 9341381 |access-date= 19 September 2017}}</ref>

<ref name="Nugent-2016">{{cite journal |display-authors = 6 |first1 = C. R. |last1 = Nugent |first2 = A. |last2 = Mainzer |first3 = J. |last3 = Bauer |first4 = R. M. |last4 = Cutri |first5 = E. A. |last5 = Kramer |first6 = T. |last6 = Grav |first7 = J. |last7 = Masiero |first8 = S. |last8 = Sonnett |first9 = E. L. |last9 = Wright |date = September 2016 |title = NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos |journal = The Astronomical Journal |volume = 152 |issue = 3 |page = 12 |bibcode = 2016AJ....152...63N |doi = 10.3847/0004-6256/152/3/63 |arxiv = 1606.08923 |doi-access = free }}</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=1097 online], [https://core.ac.uk/download/pdf/43545172.pdf AcuA catalog p. 153])</ref>

<ref name="Gartrelle-2012">{{Cite journal |author = Gartrelle, Gordon M. |date = April 2012 |title = Lightcurve Results for Eleven Asteroids |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012MPBu...39...40G |journal = The Minor Planet Bulletin |volume = 39 |issue = 2 |pages = 40%–46 |issn = 1052-8091 |bibcode = 2012MPBu...39...40G |access-date= 19 September 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= 19 September 2017}}</ref>

}}

== 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|1097}} * {{JPL small body}}

{{Minor planets navigator |1096 Reunerta |number=1097 |1098 Hakone}} {{Small Solar System bodies}} {{Authority control}}

{{DEFAULTSORT:Vicia}} 001097 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 19280811