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{{Infobox planet
{{Infobox planet
| minorplanet = yes
| minorplanet = yes
| name = 1416 Renauxa
| background = #FFFFC0
| background = #D6D6D6
| apsis =
| image =
| name = Renauxa
| symbol =
| image_size =
| image =
| caption =
| discovery_ref = &thinsp;<ref name="jpldata" />
| caption =
| discoverer = [[Louis Boyer (astronomer)|L. Boyer]]
| discovery_ref =
| discovery_site = [[Algiers Observatory|Algiers Obs.]]
| discoverer = [[L. Boyer]]
| discovered = 4 March 1937
| discovery_site = [[Algiers]]
| mpc_name = (1416) Renauxa
| discovered = 4 March 1937
| alt_names = 1937 EC{{·}}1930 XE<br />A914 TB{{·}}A919 SC
| mpc_name = (1416) Renauxa
| pronounced =
| alt_names = 1937 EC
| named_after = P. Renaux&thinsp;<ref name="springer" /> {{small|(astronomer at the discovering observatory)}}
| mp_category =
| mp_category = [[main-belt]]{{·}}{{small|([[Kirkwood gap|outer]])}}<br />[[Eos family|Eos]]&thinsp;<ref name="lcdb" /><ref name="Ferret" />
| orbit_ref = <ref name=jpldata />
| orbit_ref = &thinsp;<ref name="jpldata" />
| epoch = 31 July 2016 ([[Julian day|JD]] 2457600.5)
| epoch = 4 September 2017 ([[Julian day|JD]] 2458000.5)
| aphelion = {{Convert|3.3389797|AU|Gm|abbr=on|lk=on}}
| uncertainty = 0
| perihelion = {{Convert|2.7054528|AU|Gm|abbr=on}}
| observation_arc = 102.64 yr (37,489 days)
| semimajor = {{Convert|3.022216|AU|Gm|abbr=on}}
| aphelion = 3.3394 [[Astronomical unit|AU]]
| eccentricity = 0.1048116
| perihelion = 2.6961 AU
| period = 5.25 [[Julian year (astronomy)|yr]] (1919.1 [[Julian year (astronomy)|d]])
| semimajor = 3.0178 AU
| avg_speed =
| eccentricity = 0.1066
| inclination = 10.04045°
| period = 5.24 [[Julian year (astronomy)|yr]] (1,915 days)
| asc_node = 352.64202°
| mean_anomaly = 119.01222[[Degree (angle)|°]]
| mean_anomaly = 194.18[[Degree (angle)|°]]
| mean_motion = {{Deg2DMS|0.1880|sup=ms}} / day
| arg_peri = 66.17398°
| inclination = 10.033°
| satellites =
| asc_node = 352.60°
| dimensions = 29 km<ref name=jpldata/>
| arg_peri = 66.106°
| mass =
| dimensions = {{val|22.24|0.95}} km<ref name="Masiero-2012" /><br />{{val|27.552|0.177}} km<ref name="Masiero-2014" /><br />28.75 km {{small|(derived)}}<ref name="lcdb" /><br />{{val|28.95|2.7}} km<ref name="SIMPS" /><br />{{val|30.023|0.249}} km<ref name="WISE" /><br />{{val|33.35|8.99}} km<ref name="Nugent-2016" /><br />{{val|33.50|13.88}} km<ref name="Nugent-2015" /><br />{{val|34.42|0.90}} km<ref name="AKARI" />
| density =
| rotation = {{val|4.2}} [[Hour|h]] {{small|(poor)}}{{efn|name=lcdb-Iowa-2011}}<br />{{val|4.3}} h {{small|(superseded)}}<ref name="Lagerkvist-1978a" /><br />{{val|8.700|0.004}} h<ref name="Durkee-2010b" />
| surface_grav =
| albedo = {{val|0.09|0.06}}<ref name="Nugent-2016" /><br />{{val|0.09|0.07}}<ref name="Nugent-2015" /><br />{{val|0.112|0.006}}<ref name="AKARI" /><br />0.1122 {{small|(derived)}}<ref name="lcdb" /><br />{{val|0.1357|0.0159}}<ref name="WISE" /><br />{{val|0.1459|0.031}}<ref name="SIMPS" /><br />{{val|0.205|0.028}}<ref name="Masiero-2012" /><br />{{val|0.212|0.009}}<ref name="Masiero-2014" />
| escape_velocity =
| spectral_type = [[Tholen classification|Tholen]] {{=}} [[S-type asteroid|S]]&thinsp;<ref name="jpldata" />{{·}}[[K-type asteroid|K]]&thinsp;<ref name="Granahan-1993" /><br />[[Asteroid color indices|B–V]] {{=}} 0.790&thinsp;<ref name="jpldata" /><br />[[Asteroid color indices|U–B]] {{=}} 0.410&thinsp;<ref name="jpldata" />
| sidereal_day =
| abs_magnitude = 10.40<ref name="SIMPS" /><ref name="WISE" /><ref name="AKARI" />{{·}}10.60<ref name="Masiero-2012" /><ref name="Nugent-2015" />{{·}}10.7<ref name="jpldata" /><ref name="lcdb" />{{·}}10.75<ref name="Nugent-2016" />
| axial_tilt =
| pole_ecliptic_lat =
| pole_ecliptic_lon =
| albedo = {{val|0.1459|0.031}}<ref name=jpldata/>
| temperatures=
| temp_name1 =
| mean_temp_1 =
| max_temp_1 =
| temp_name2 =
| max_temp_2 =
| spectral_type = [[K-type asteroid|K]]<ref name=ntrs>https://ntrs.nasa.gov/search.jsp?R=19940011722</ref>
| abs_magnitude = 10.7<ref name=jpldata/>
| mean_motion = {{Deg2DMS|0.1875926|sup=ms}} / day
| observation_arc = 96.56 yr (35270 days)
| uncertainty = 0
| rotation = {{Convert|8.700|h|d|abbr=on|lk=on}}
| mean_radius = {{val|14.475|1.35}} [[Kilometre|km]]
| moid = {{Convert|1.73432|AU|Gm|abbr=on}}
| jupiter_moid = {{Convert|2.03467|AU|Gm|abbr=on}}
| tisserand = 3.214
}}
}}
'''1416 Renauxa''' (1937 EC) is a [[Asteroid belt|main-belt]] [[asteroid]] discovered on March 4, 1937, by [[L. Boyer]] at [[Algiers]].<ref name=jpldata/> It was one of the first ten identified [[K-type asteroid]]s.<ref name=ntrs/>


'''1416 Renauxa''', provisional designation {{mpf|1937 EC}}, is an Eon [[asteroid]] from the outer regions of the [[asteroid belt]], approximately 29 kilometers in diameter. It was discovered on 4 March 1937, by French astronomer [[Louis Boyer (astronomer)|Louis Boyer]] at the [[Algiers Observatory]] in Algeria, North Africa.<ref name="MPC-object" /> It was named after P. Renaux, an astronomer at the discovering observatory.<ref name="springer" />
==References==
{{reflist
| refs =
<ref name=jpldata>{{cite web
|title=JPL Small-Body Database Browser: 1416 Renauxa
|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1416
|publisher=Jet Propulsion Laboratory
|access-date=27 April 2016}}</ref>


== Orbit and classification ==
}}


''Renauxa'' is a member the [[Eos family]] ({{small|[[FIN tbl#606|606]]}}),<ref name="lcdb" /><ref name="Ferret" /> the largest [[asteroid family]] in the [[Kirkwood gap|outer]] main belt consisting of nearly 10,000 asteroids.<ref name="Nesvorny-2014" />{{rp|23}} It orbits the Sun at a distance of 2.7–3.3&nbsp;[[Astronomical unit|AU]] once every 5 years and 3 months (1,915 days). Its orbit has an [[orbital eccentricity|eccentricity]] of 0.11 and an [[orbital inclination|inclination]] of 10[[Degree (angle)|°]] with respect to the [[ecliptic]].<ref name="jpldata" />
==External links==

The asteroid was first identified as {{mpf|A914 TB}} at [[Heidelberg Observatory]] in October 1914, where its [[observation arc]] begins with its identification as {{mpf|1919 SC}} in September 1919, more than 17 years prior to its official discovery observation at Algiers.<ref name="MPC-object" />

== Physical characteristics ==

''Renauxa'' has been characterized as a [[K-type asteroid]],<ref name="Granahan-1993" /> one of the first of such type ever identified and in line with the overall [[Asteroid spectral type|spectral type]] for members of the Eos family.<ref name="Nesvorny-2014" />{{rp|23}} In the [[Tholen classification]], it is classified as an [[S-type asteroid]].<ref name="jpldata" /> This is a known misclassification as S- and K-types are identical in the visual part of the spectrum.<ref name="Granahan-1993" />

=== Rotation period ===

In September 2010, a rotational [[lightcurve]] of ''Renauxa'' was obtained from photometric observations by Richard Durkee at the S.O.S. Observatory ({{small|[[IAU code#H39|H39]]}}). Lightcurve analysis gave a well-defined [[rotation period]] of 8.700 hours with a low brightness variation of 0.11 [[Magnitude (astronomy)|magnitude]] ({{small|[[LCDB quality code|U=3]]}}),<ref name="Durkee-2010b" /> superseding previous observation that gave approximately half the period solution ({{small|[[LCDB quality code|U=1/2]]}}).<ref name="Lagerkvist-1978a" />{{efn|name=lcdb-Iowa-2011}} A low brightness amplitude is typical for a spherical rather than elongated shape.

=== Diameter and albedo ===

According to the surveys carried out by the Infrared Astronomical Satellite [[IRAS]], the Japanese [[Akari (satellite)|Akari satellite]] and the [[NEOWISE]] mission of NASA's [[Wide-field Infrared Survey Explorer]], ''Renauxa'' measures between 22.24 and 34.42 kilometers in diameter and its surface has an [[astronomical albedo|albedo]] between 0.09 and 0.212.<ref name="Masiero-2012" /><ref name="Masiero-2014" /><ref name="SIMPS" /><ref name="WISE" /><ref name="Nugent-2016" /><ref name="Nugent-2015" /><ref name="AKARI" />

The ''Collaborative Asteroid Lightcurve Link'' derives an albedo of 0.1122 and a diameter of 28.75 kilometers based on an [[absolute magnitude]] of 10.7.<ref name="lcdb" />

== Naming ==

This [[minor planet]] was named after P. Renaux, a French astronomer and assistant at the discovering [[Algiers Observatory]]. The official naming citation was mentioned in ''[[The Names of the Minor Planets]]'' by [[Paul Herget]] in 1955 ({{small|[[Herget's discovery circumstances|H 128]]}}).<ref name="springer" />

== Notes ==
{{notelist|refs=

{{efn|name=lcdb-Iowa-2011|1=Iowa-(2011) web: rotation period {{val|4.2}} hours. Quality code of 1. Summary figures at the [http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1416%7CRenauxa LCDB]}}

}} <!-- end of notelist -->

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

<ref name="jpldata">{{cite web
|type = 2017-06-05 last obs.
|title = JPL Small-Body Database Browser: 1416 Renauxa (1937 EC)
|url = http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001416
|publisher = Jet Propulsion Laboratory
|accessdate = 25 October 2017}}</ref>

<ref name="springer">{{cite book
|title = Dictionary of Minor Planet Names – (1416) Renauxa
|last = Schmadel | first = Lutz D.
|publisher = Springer Berlin Heidelberg
|page = 114
|date = 2007
|url = https://link.springer.com/referenceworkentry/10.1007/978-3-540-29925-7_1417
|isbn = 978-3-540-00238-3
|accessdate = 25 October 2017}}</ref>

<ref name="MPC-object">{{cite web
|title = 1416 Renauxa (1937 EC)
|work = Minor Planet Center
|url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1416
|accessdate = 25 October 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
|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 October 2017}}</ref>

<ref name="Granahan-1993">{{Cite journal
|first1 = James C. |last1 = Granahan
|first2 = Greg |last2 = Smith
|first3 = Jeffrey F. |last3 = Bell
|date = March 1993
|title = New K type asteroids
|url = https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19940011722.pdf
|journal = In Lunar and Planetary Inst.
|bibcode = 1993LPI....24..557G
|access-date= 25 October 2017}}</ref>

<ref name="Ferret">{{cite web
|title = Small Bodies Data Ferret
|work = Nesvorny HCM Asteroid Families V3.0
|url = https://sbntools.psi.edu/ferret/PropertySearch/familyForm.action
|accessdate = 25 October 2017}}</ref>

<ref name="Nesvorny-2014">{{Cite journal
|first1 = D. |last1 = Nesvorný
|first2 = M. |last2 = Broz
|first3 = V. |last3 = Carruba
|date = December 2014
|title = Identification and Dynamical Properties of Asteroid Families
|url = https://arxiv.org/pdf/1502.01628.pdf
|journal = Asteroids IV
|pages = 297–321
|bibcode = 2015aste.book..297N
|doi = 10.2458/azu_uapress_9780816532131-ch016
|arxiv = 1502.01628
|access-date= 25 October 2017}}</ref>

<ref name="lcdb">{{cite web
|title = LCDB Data for (1416) Renauxa
|publisher = Asteroid Lightcurve Database (LCDB)
|url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1416%7CRenauxa
|accessdate = 25 October 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= 25 October 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
|access-date= 25 October 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
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016AJ....152...63N
|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
|access-date= 25 October 2017}}</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
|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 October 2017}}</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://sbn.psi.edu/pds/asteroid/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab
|journal = NASA Planetary Data System
|bibcode = 2004PDSS...12.....T
|access-date= 25 October 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
|url = http://arxiv.org/pdf/1109.6407v1.pdf
|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
|access-date= 25 October 2017}}</ref>

<ref name="Lagerkvist-1978a">{{Cite journal
|author = Lagerkvist, C.-I.
|date = March 1978
|title = Photographic photometry of 110 main-belt asteroids
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1978A&AS...31..361L
|journal = Astronomy and Astrophysics Supplement Series
|pages = 361–381
|bibcode = 1978A&AS...31..361L
|access-date= 25 October 2017}}</ref>

<ref name="Durkee-2010b">{{Cite journal
|author = Durkee, Russell I.
|date = July 2010
|title = Asteroids Observed from the Shed of Science Observatory: 2009 October - 2010 March
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2010MPBu...37..125D
|journal = The Minor Planet Bulletin
|volume = 37
|issue = 3
|pages = 125–127
|issn = 1052-8091
|bibcode = 2010MPBu...37..125D
|access-date= 25 October 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])
* [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
* [http://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html Discovery Circumstances: Numbered Minor Planets (1)-(5000)] – Minor Planet Center
* {{JPL small body}}
* {{JPL small body}}


{{Minor planets navigator|1415 Malautra|number=1416|1417 Walinskia}}
{{Minor planets navigator |1415 Malautra |number=1416 |1417 Walinskia}}
{{Small Solar System bodies}}
{{Small Solar System bodies}}


{{DEFAULTSORT:Renauxa}}
{{DEFAULTSORT:Renauxa}}
[[Category:Main-belt asteroids|001416]]
[[Category:Eos asteroids|001416]]
[[Category:Numbered minor planets|001416]]
[[Category:Numbered minor planets|001416]]
[[Category:Discoveries by Louis Boyer (astronomer)]]
[[Category:Discoveries by Louis Boyer (astronomer)]]
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[[Category:S-type asteroids (Tholen)|001416]]
[[Category:S-type asteroids (Tholen)|001416]]
[[Category:Astronomical objects discovered in 1937|19370304]]
[[Category:Astronomical objects discovered in 1937|19370304]]


{{beltasteroid-stub}}

Revision as of 21:03, 25 October 2017

1416 Renauxa
Discovery [1]
Discovered byL. Boyer
Discovery siteAlgiers Obs.
Discovery date4 March 1937
Designations
(1416) Renauxa
Named after
P. Renaux [2] (astronomer at the discovering observatory)
1937 EC · 1930 XE
A914 TB · A919 SC
main-belt · (outer)
Eos [3][4]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc102.64 yr (37,489 days)
Aphelion3.3394 AU
Perihelion2.6961 AU
3.0178 AU
Eccentricity0.1066
5.24 yr (1,915 days)
194.18°
0° 11m 16.8s / day
Inclination10.033°
352.60°
66.106°
Physical characteristics
Dimensions22.24±0.95 km[5]
27.552±0.177 km[6]
28.75 km (derived)[3]
28.95±2.7 km[7]
30.023±0.249 km[8]
33.35±8.99 km[9]
33.50±13.88 km[10]
34.42±0.90 km[11]
4.2 h (poor)[a]
4.3 h (superseded)[12]
8.700±0.004 h[13]
0.09±0.06[9]
0.09±0.07[10]
0.112±0.006[11]
0.1122 (derived)[3]
0.1357±0.0159[8]
0.1459±0.031[7]
0.205±0.028[5]
0.212±0.009[6]
Tholen = S [1] · K [14]
B–V = 0.790 [1]
U–B = 0.410 [1]
10.40[7][8][11] · 10.60[5][10] · 10.7[1][3] · 10.75[9]

1416 Renauxa, provisional designation 1937 EC, is an Eon asteroid from the outer regions of the asteroid belt, approximately 29 kilometers in diameter. It was discovered on 4 March 1937, by French astronomer Louis Boyer at the Algiers Observatory in Algeria, North Africa.[15] It was named after P. Renaux, an astronomer at the discovering observatory.[2]

Orbit and classification

Renauxa is a member the Eos family (606),[3][4] the largest asteroid family in the outer main belt consisting of nearly 10,000 asteroids.[16]: 23  It orbits the Sun at a distance of 2.7–3.3 AU once every 5 years and 3 months (1,915 days). Its orbit has an eccentricity of 0.11 and an inclination of 10° with respect to the ecliptic.[1]

The asteroid was first identified as A914 TB at Heidelberg Observatory in October 1914, where its observation arc begins with its identification as 1919 SC in September 1919, more than 17 years prior to its official discovery observation at Algiers.[15]

Physical characteristics

Renauxa has been characterized as a K-type asteroid,[14] one of the first of such type ever identified and in line with the overall spectral type for members of the Eos family.[16]: 23  In the Tholen classification, it is classified as an S-type asteroid.[1] This is a known misclassification as S- and K-types are identical in the visual part of the spectrum.[14]

Rotation period

In September 2010, a rotational lightcurve of Renauxa was obtained from photometric observations by Richard Durkee at the S.O.S. Observatory (H39). Lightcurve analysis gave a well-defined rotation period of 8.700 hours with a low brightness variation of 0.11 magnitude (U=3),[13] superseding previous observation that gave approximately half the period solution (U=1/2).[12][a] A low brightness amplitude is typical for a spherical rather than elongated shape.

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, Renauxa measures between 22.24 and 34.42 kilometers in diameter and its surface has an albedo between 0.09 and 0.212.[5][6][7][8][9][10][11]

The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1122 and a diameter of 28.75 kilometers based on an absolute magnitude of 10.7.[3]

Naming

This minor planet was named after P. Renaux, a French astronomer and assistant at the discovering Algiers Observatory. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 128).[2]

Notes

  1. ^ a b Iowa-(2011) web: rotation period 4.2 hours. Quality code of 1. Summary figures at the LCDB

References

  1. ^ a b c d e f g h "JPL Small-Body Database Browser: 1416 Renauxa (1937 EC)" (2017-06-05 last obs.). Jet Propulsion Laboratory. Retrieved 25 October 2017.
  2. ^ a b c Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1416) Renauxa. Springer Berlin Heidelberg. p. 114. ISBN 978-3-540-00238-3. Retrieved 25 October 2017.
  3. ^ a b c d e f "LCDB Data for (1416) Renauxa". Asteroid Lightcurve Database (LCDB). Retrieved 25 October 2017.
  4. ^ a b "Small Bodies Data Ferret". Nesvorny HCM Asteroid Families V3.0. Retrieved 25 October 2017.
  5. ^ a b c d Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 25 October 2017.
  6. ^ a b c Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 25 October 2017.
  7. ^ a b c d Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. Bibcode:2004PDSS...12.....T. Retrieved 25 October 2017.
  8. ^ a b c d Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results" (PDF). The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 25 October 2017.
  9. ^ a b c d Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal. 152 (3): 12. arXiv:1606.08923. Bibcode:2016AJ....152...63N. doi:10.3847/0004-6256/152/3/63. Retrieved 25 October 2017.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  10. ^ a b c d Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos". The Astrophysical Journal. 814 (2): 13. arXiv:1509.02522. Bibcode:2015ApJ...814..117N. doi:10.1088/0004-637X/814/2/117. Retrieved 25 October 2017.
  11. ^ a b c d Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 25 October 2017.
  12. ^ a b Lagerkvist, C.-I. (March 1978). "Photographic photometry of 110 main-belt asteroids". Astronomy and Astrophysics Supplement Series: 361–381. Bibcode:1978A&AS...31..361L. Retrieved 25 October 2017.
  13. ^ a b Durkee, Russell I. (July 2010). "Asteroids Observed from the Shed of Science Observatory: 2009 October - 2010 March". The Minor Planet Bulletin. 37 (3): 125–127. Bibcode:2010MPBu...37..125D. ISSN 1052-8091. Retrieved 25 October 2017.
  14. ^ a b c Granahan, James C.; Smith, Greg; Bell, Jeffrey F. (March 1993). "New K type asteroids" (PDF). In Lunar and Planetary Inst. Bibcode:1993LPI....24..557G. Retrieved 25 October 2017.
  15. ^ a b "1416 Renauxa (1937 EC)". Minor Planet Center. Retrieved 25 October 2017.
  16. ^ a b Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families" (PDF). Asteroids IV: 297–321. arXiv:1502.01628. Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. Retrieved 25 October 2017.
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