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词条 1016 Anitra
释义

  1. Orbit and classification

  2. Physical characteristics

      Rotation period    Binary system    Diameter and albedo  

  3. Naming

  4. Notes

  5. References

  6. External links

{{Infobox planet
| minorplanet = yes
| name = 1016 Anitra
| background = #D6D6D6
| image =
| image_size =
| caption =
| discovery_ref =  
| discoverer = K. Reinmuth
| discovery_site = Heidelberg Obs.
| discovered = 31 January 1924
| mpc_name = (1016) Anitra
| alt_names = 1924 QG{{·}}{{mp|1929 TE|1}}
| pronounced =
| named_after = fictional character
in drama Peer Gynt [2]
| mp_category = main-belt{{·}}{{small|(inner)}} [3]
Flora [4]
| orbit_ref =  
| epoch = 4 September 2017 (JD 2458000.5)
| uncertainty = 0
| observation_arc = 93.42 yr (34,123 days)
| aphelion = 2.5035 AU
| perihelion = 1.9356 AU
| semimajor = 2.2196 AU
| eccentricity = 0.1279
| period = 3.31 yr (1,208 days)
| mean_anomaly = 176.01°
| mean_motion = {{Deg2DMS|0.2981|sup=ms}} / day
| inclination = 6.0352°
| asc_node = 8.8588°
| arg_peri = 53.320°
| satellites = 1[6][7]
| dimensions = {{val|9.539|0.078}} km[8]
{{val|10.302|0.068}} km[9]
12.97 km {{small|(calculated)}}[3]
| rotation = {{val|5.928|0.001}} h[11]
{{val|5.9288|0.0005}} h[12]
{{val|5.929|0.001}} h[13]
{{val|5.9295|0.0005}} h[14]
5.92951 h[3]
{{val|5.9294|0.0001}} h[7]
{{val|5.9300|0.0001}} h[7]
{{val|5.930}} h[18]
{{val|5.93|}} h{{efn|name=lcdb-Menke-2011}}
{{val|5.9301|0.0003}} h[19]
| albedo = 0.20 {{small|(assumed)}}[3]
{{val|0.2728|0.0572}}[9]
{{val|0.308|0.048}}[8]
| spectral_type = SMASS {{=}} S {{·}}S [3]
| abs_magnitude = 11.8[3]{{·}}11.9{{·}}12.0[9]
}}

1016 Anitra, provisional designation {{mp|1924 QG}}, is a stony Florian asteroid and suspected asynchronous binary system from the inner regions of the asteroid belt, approximately 10 kilometers in diameter.

It was discovered on 31 January 1924, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany.[28] The asteroid was likely named after the fictional character Anitra from Henrik Ibsen's drama Peer Gynt.[2]

Orbit and classification

Anitra is a member of the Flora family ({{small|402}}), a giant asteroid family and the largest family of stony asteroids in the main-belt.[4][31]{{rp|23}}

It orbits the Sun in the inner main-belt at a distance of 1.9–2.5 AU once every 3 years and 4 months (1,208 days). Its orbit has an eccentricity of 0.13 and an inclination of 6° with respect to the ecliptic. The asteroid's observation arc begins at Heidelberg, 12 days after to its official discovery observation.[28]

Physical characteristics

In the SMASS classification, Anitra is a common, stony S-type asteroid.

Rotation period

In November 2015, a rotational lightcurve of Anitra was obtained from photometric observations by an international collaborations of astronomers who combined their observational results. Lightcurve analysis gave a rotation period of 5.92951 hours with a brightness amplitude of 0.30 magnitude ({{small|U=3}}).[7]

Binary system

Anitra is a suspected asynchronous binary asteroid, a system with a fairly large separation, for which tidal forces have been insufficient to synchronize the periods within the system's lifetime.[6][7] The likely minor-planet moon has a rotation period of 2.609 hours and is thought to orbit its primary every 240 hours. The results, however, are still tentative.[3] More than 100 known binaries from the asteroid belt have already been discovered.

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Anitra measures 9.539 and 10.302 kilometers in diameter and its surface has an albedo of 0.2728 and 0.308, respectively.[8][9]

The Collaborative Asteroid Lightcurve Link assumes an standard albedo for stony S-type asteroids of 0.20 and calculates a diameter of 12.97 kilometers based on an absolute magnitude of 11.8.[3]

Naming

This minor planet was probably named after the Arabian dancer Anitra, daughter of a Bedouin chief in Henrik Ibsen's drama Peer Gynt, a five-act play in verse. The music was composed by Edvard Grieg who named one piece "Anitra's Dance".[2] The minor planets {{MoMP|4872|(4872)}} and {{MoMP|5696|(5696)}} are named after Grieg and Ibsen, respectively.[2]

The official naming citation is based on research by Lutz Schmadel and feedback from astronomers R. Bremer and I. van Houten-Groeneveld.[2]

Notes

{{notelist|refs={{efn|name=lcdb-Menke-2011|1=Menke (2011) web: rotation period {{val|5.93}} hours with a brightness amplitude of {{val|0.50}} magnitude and a quality code of 2. Summary figures at Collaborative Asteroid Lightcurve Link (CALL)}}

}}

References

1. ^1 2 3 4 5 {{cite book |title = Dictionary of Minor Planet Names – (1016) Anitra |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |pages = 87–88 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1017 |chapter = (1016) Anitra }}
2. ^1 2 {{cite web |title = 1016 Anitra (1924 QG) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1016 |accessdate = 29 August 2017}}
3. ^1 2 3 {{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= 29 August 2017}}
4. ^1 2 {{cite web |first1 = Robert |last1 = Johnston |title = (1016) Anitra |publisher = johnstonsarchive.net |date = 16 July 2017 |url = http://www.johnstonsarchive.net/astro/astmoons/am-01016.html |access-date= 29 August 2017}}
5. ^1 2 {{cite web |title = Small Bodies Data Ferret |work = Nesvorny HCM Asteroid Families V3.0 |url = https://sbntools.psi.edu/ferret/PropertySearch/familyForm.action |accessdate = 29 August 2017}}
6. ^1 {{Cite book |first1 = D. |last1 = Nesvorný |first2 = M. |last2 = Broz |first3 = V. |last3 = Carruba |date = December 2014 |title = Identification and Dynamical Properties of Asteroid Families |journal = Asteroids IV |pages = 297–321 |bibcode = 2015aste.book..297N |doi = 10.2458/azu_uapress_9780816532131-ch016 |arxiv = 1502.01628 |isbn = 9780816532131 }}
7. ^1 2 3 4 5 6 7 8 {{cite web |title = LCDB Data for (1016) Anitra |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1016%7CAnitra |accessdate = 29 August 2017}}
8. ^1 2 3 4 {{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 }}
9. ^1 {{Cite journal |author = Menke, John L. |date = September 2005 |title = Lightcurves and periods for asteroids 471 Papagena, 675 Ludmilla, 1016 Anitra, 1127 Mimi, 1165 Imprinetta, 1171 Rustahawelia, and 2283 Bunke |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2005MPBu...32...64M |journal = The Minor Planet Bulletin |volume = 32 |issue = 3 |pages = 64–66 |issn = 1052-8091 |bibcode = 2005MPBu...32...64M |access-date= 29 August 2017}}
10. ^1 {{Cite journal |display-authors = 6 |first1 = Donald P. |last1 = Pray |first2 = Adrian |last2 = Galad |first3 = Stefan |last3 = Gajdos |first4 = Jozef |last4 = Vilagi |first5 = Walt |last5 = Cooney |first6 = John |last6 = Gross |first7 = Dirk |last7 = Terrel |first8 = David |last8 = Higgins |first9 = Marek |last9 = Husarik |first10 = Peter |last10 = Kusnirak |date = December 2006 |title = Lightcurve analysis of asteroids 53, 698, 1016, 1523, 1950, 4608, 5080 6170, 7760, 8213, 11271, 14257, 15350 and 17509 |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2006MPBu...33...92P |journal = The Minor Planet Bulletin |volume = 33 |issue = 4 |pages = 92–95 |issn = 1052-8091 |bibcode = 2006MPBu...33...92P |access-date= 29 August 2017}}
11. ^1 {{Cite journal |display-authors = 6 |first1 = A. |last1 = Kryszczynska |first2 = F. |last2 = Colas |first3 = M. |last3 = Polinska |first4 = R. |last4 = Hirsch |first5 = V. |last5 = Ivanova |first6 = G. |last6 = Apostolovska |first7 = B. |last7 = Bilkina |first8 = F. P. |last8 = Velichko |first9 = T. |last9 = Kwiatkowski |first10 = P. |last10 = Kankiewicz |first11 = F. |last11 = Vachier |first12 = V. |last12 = Umlenski |first13 = T. |last13 = Michalowski |first14 = A. |last14 = Marciniak |first15 = A. |last15 = Maury |first16 = K. |last16 = Kaminski |first17 = M. |last17 = Fagas |first18 = W. |last18 = Dimitrov |first19 = W. |last19 = Borczyk |first20 = K. |last20 = Sobkowiak |first21 = J. |last21 = Lecacheux |first22 = R. |last22 = Behrend |first23 = A. |last23 = Klotz |first24 = L. |last24 = Bernasconi |first25 = R. |last25 = Crippa |first26 = F. |last26 = Manzini |first27 = R. |last27 = Poncy |first28 = P. |last28 = Antonini |first29 = D. |last29 = Oszkiewicz |first30 = T. |last30 = Santana-Ros |date = October 2012 |title = Do Slivan states exist in the Flora family?. I. Photometric survey of the Flora region |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012A&A...546A..72K |journal = Astronomy and Astrophysics |volume = 546 |page = 51 |bibcode = 2012A&A...546A..72K |doi = 10.1051/0004-6361/201219199 |access-date= 29 August 2017}}
12. ^1 {{Cite journal |author = Alkema, Michael S. |date = July 2013 |title = Asteroid Lightcurve Analysis at Elephant Head Observatory: 2012 November - 2013 April |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2013MPBu...40..133A |journal = The Minor Planet Bulletin |volume = 40 |issue = 3 |pages = 133–137 |issn = 1052-8091 |bibcode = 2013MPBu...40..133A |access-date= 29 August 2017}}
13. ^1 {{Cite journal |author = Schmidt, Richard E. |date = April 2016 |title = NIR Minor Planet Photometry form Burleith Observatory, 2015 |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016MPBu...43..129S |journal = The Minor Planet Bulletin |volume = 43 |issue = 2 |pages = 129–131 |issn = 1052-8091 |bibcode = 2016MPBu...43..129S |access-date= 29 August 2017}}
14. ^1 2 3 4 5 {{Cite journal |display-authors = 6 |first1 = Frederick |last1 = Pilcher |first2 = Vladimir |last2 = Benishek |first3 = Jens |last3 = Jacobsen |first4 = Leif Hugo |last4 = Kristensen |first5 = Kim |last5 = Lang |first6 = Frank R. |last6 = Larsen |first7 = Caroline |last7 = Odden |first8 = Petr |last8 = Pravec |date = July 2016 |title = Minor Planet 1016 Anitra: A Likely Asynchronous Binary |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016MPBu...43..274P |journal = The Minor Planet Bulletin |volume = 43 |issue = 3 |pages = 274–277 |issn = 1052-8091 |bibcode = 2016MPBu...43..274P |access-date= 29 August 2017}}
15. ^1 {{Cite journal |author = Klinglesmith, Daniel K., III |date = October 2017 |title = Asteroids Observed from Estcorn Observatory |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2017MPBu...44..345K |journal = The Minor Planet Bulletin |volume = 44 |issue = 4 |pages = 345–348 |issn = 1052-8091 |bibcode = 2017MPBu...44..345K |access-date= 17 October 2017}}
[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]

}}

External links

  • Asteroids with Satellites, Robert Johnston, johnstonsarchive.net
  • Asteroid Lightcurve Database (LCDB), query form (info)
  • [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
  • Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
  • Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
  • {{AstDys|1016}}
  • {{JPL small body}}
{{Minor planets navigator |1015 Christa |number=1016 |1017 Jacqueline}}{{Small Solar System bodies}}{{DEFAULTSORT:Anitra}}

9 : Flora asteroids|Baptistina asteroids|Discoveries by Karl Wilhelm Reinmuth|Minor planets named for literary characters|Named minor planets|Peer Gynt|Binary asteroids|S-type asteroids (SMASS)|Astronomical objects discovered in 1924
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