1005 Arago
{{Short description|Asteroid}}
{{Use dmy dates|date=October 2019}}
{{Infobox planet
| minorplanet = yes
| name = 1005 Arago
| background = #D6D6D6
| image =
| image_size =
| caption =
| discovered = 5 September 1923
| discoverer = S. Belyavskyj
| discovery_site = Simeiz Obs.
| mpc_name = (1005) Arago
| alt_names = 1923 OT
| pronounced =
| named_after = François Arago
{{nowrap|{{small|(French mathematician)}}}}
| mp_category = main-belt{{·}}{{small|(outer)}}
| epoch = 4 September 2017 (JD 2458000.5)
| uncertainty = 0
| observation_arc = 93.51 yr (34,156 days)
| aphelion = 3.5381 AU
| perihelion = 2.7937 AU
| semimajor = 3.1659 AU
| eccentricity = 0.1176
| period = 5.63 yr (2,058 days)
| mean_anomaly = 206.34°
| mean_motion = {{Deg2DMS|0.1750|sup=ms}} / day
| inclination = 19.060°
| asc_node = 349.17°
| arg_peri = 60.660°
| dimensions = {{val|48.57|14.27}} km
{{val|50.28|15.89}} km
{{val|52.74|0.89}} km
{{val|56.36|1.36}} km
57.69 km {{small|(derived)}}
{{val|57.82|4.9}} km
{{val|61.132|0.345}} km
{{val|68.404|0.660}} km
| rotation = {{val|8.7819|0.0001}} h{{efn|name=CALL-2002}}
{{val|8.784|0.001}} h
| albedo = {{val|0.0498|0.0069}}
0.0582 {{small|(derived)}}
{{val|0.0697|0.014}}
{{val|0.070|0.008}}
{{val|0.074|0.004}}
{{val|0.08|0.04}}
{{val|0.08|0.09}}
| abs_magnitude = 9.7{{·}}9.9{{·}}9.98
}}
Arago (minor planet designation: 1005 Arago), provisional designation {{mp|1923 OT}}, is a dark asteroid from the outer regions of the asteroid belt, approximately 55 kilometers in diameter. It was discovered on 5 September 1923, by Russian astronomer Sergey Belyavsky at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after French mathematician François Arago.
Classification and orbit
Arago orbits the Sun in the outer main-belt at a distance of 2.8–3.5 AU once every 5 years and 8 months (2,058 days). Its orbit has an eccentricity of 0.12 and an inclination of 19° with respect to the ecliptic. The asteroid's observation arc begins at Uccle Observatory in 1935, twelve years after its official discovery observation at Simeiz.
Physical characteristics
= Diameter and albedo =
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer (WISE) with its subsequent NEOWISE mission, Arago measures between {{Convert|48.57|and|68.404|km|sp=us}} in diameter and its surface has an albedo between 0.0498 and 0.08. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0582 and a diameter of {{Convert|57.69|km|sp=us}} based on an absolute magnitude of 9.9.
= Lightcurve =
In October 2010, a rotational lightcurve of Arago was obtained from photometric observations that was later submitted to the CALL website. Lightcurve analysis gave a rotation period of 8.7819 hours with a brightness amplitude of 0.22 magnitude ({{small|U=n.a.}}).{{efn|name=CALL-2002}} In April 2016, another lightcurve was obtained by the group of Spanish amateur astronomers OBAS. It gave a concurring period of 8.784 hours with an amplitude of 0.22 magnitude ({{small|U=3}}).
= Spectral type =
Arago is characterized by WISE as a dark and reddish P-type asteroid. It is also a carbonaceous C-type asteroid as generically assumed by CALL.
Naming
This minor planet was named after French mathematician François Arago (1786–1853) director of the Paris Observatory. He is also honored by an inner ring of Neptune, the crater Arago on the Moon and the crater Arago on Mars. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ({{small|H 96}}).
Notes
{{notelist|refs=
{{efn|name=CALL-2002|1=CALL (2002): Submitted observations to the CALL website with a rotation period {{val|8.7819|0.0001}} hours with a brightness amplitude of {{val|0.22}} mag. Summary figures for (1005) Arago at [http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1005%7CArago Collaborative Asteroid Lightcurve Link (CALL)]}}
}}
References
{{reflist|refs=
|type = 2017-07-04 last obs.
|title = JPL Small-Body Database Browser: 1005 Arago (1923 OT)
|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001005
|publisher = Jet Propulsion Laboratory
|accessdate = 6 August 2017}}
|title = Dictionary of Minor Planet Names – (1005) Arago
|last = Schmadel | first = Lutz D.
|publisher = Springer Berlin Heidelberg
|page = 87
|date = 2007
|isbn = 978-3-540-00238-3
|doi = 10.1007/978-3-540-29925-7_1006 |chapter = (1005) Arago }}
|title = 1005 Arago (1923 OT)
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=1005
|accessdate = 6 August 2017}}
|title = MPC/MPO/MPS Archive
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html
|accessdate = 6 August 2017}}
|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= 6 August 2017}}
|title = LCDB Data for (1005) Arago
|publisher = Asteroid Lightcurve Database (LCDB)
|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1005%7CArago
|accessdate = 6 August 2017}}
|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}}
|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=1005 online], [https://core.ac.uk/download/pdf/43545172.pdf AcuA catalog p. 153])
|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 }}
|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= 6 August 2017}}
|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= 6 August 2017}}
|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 }}
|display-authors = 6
|first1 = Enrique Arce |last1 = Mansego
|first2 = Pedro Brines |last2 = Rodriguez
|first3 = Juan Lozano |last3 = de Haro
|first4 = Onofre Rodrigo |last4 = Chiner
|first5 = Alvaro Fornas |last5 = Silva
|first6 = David Herrero |last6 = Porta
|first7 = Vicente Mas |last7 = Martinez
|first8 = Gonzalo Fornas |last8 = Silva
|first9 = Alfonso Carreno |last9 = Garceran
|date = October 2016
|title = Eighteen Asteroids Lightcurves at Asteroides Observers (OBAS) - MPPD: 2016 March-May
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016MPBu...43..332M
|journal = The Minor Planet Bulletin
|volume = 43
|issue = 4
|pages = 332–336
|issn = 1052-8091
|bibcode = 2016MPBu...43..332M
|access-date= 6 August 2017}}
}}
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|1005}}
- {{JPL small body}}
{{Minor planets navigator |1004 Belopolskya |number=1005 |1006 Lagrangea}}
{{Small Solar System bodies}}
{{Authority control}}
{{DEFAULTSORT:Arago}}