| 词条 | 1467 Mashona |
| 释义 |
| minorplanet = yes | name = 1467 Mashona | background = #D6D6D6 | image = | image_size = | caption = | discovery_ref = | discovered = 30 July 1938 | discoverer = C. Jackson | discovery_site = Johannesburg Obs. | mpc_name = (1467) Mashona | alt_names = 1938 OE{{·}}1930 DL 1936 DK{{·}}{{mp|1936 FA|1}} 1948 EG{{·}}A923 CB | pronounced = | named_after = {{nowrap|Shona people (Mashona)}} {{small|(natives of Mashonaland)}}[2] | mp_category = main-belt{{·}}{{small|(outer)}} | orbit_ref = | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 0 | observation_arc = 94.41 yr (34,483 days) | aphelion = 3.8268 AU | perihelion = 2.9485 AU | semimajor = 3.3877 AU | eccentricity = 0.1296 | period = 6.24 yr (2,277 days) | mean_anomaly = 255.30° | mean_motion = {{Deg2DMS|0.1581|sup=ms}} / day | inclination = 21.910° | asc_node = 326.50° | arg_peri = 349.55° | dimensions = {{val|89.160|0.728}} km[5] {{val|90.93|28.77}} km[6] {{val|95.08|1.30}} km[7] {{val|104.119|1.062}} km[8] 107.54 km {{small|(calculated)}}[9] | rotation = {{val|9.740|0.0029}} h[10] {{val|9.744|0.001}} h[11] {{val|9.76}} h[12] | albedo = {{val|0.05|0.03}}[6] 0.057 {{small|(assumed)}}[9] {{val|0.0609|0.0111}}[8] {{val|0.074|0.002}}[7] {{val|0.083|0.014}}[5] | spectral_type = Tholen = GC {{·}}GC [9] B–V = 0.743 U–B = 0.373 | abs_magnitude = {{val|8.515|0.001}} {{small|(R)}}[10] 8.57[6][7][8][9] }}1467 Mashona, provisional designation {{mp|1938 OE}}, is a rare-type carbonaceous asteroid from the outer regions of the asteroid belt, approximately 100 kilometers in diameter, making it one of the Top 200 largest asteroids to exists. It was discovered on 30 July 1938, by South African astronomer Cyril Jackson at the Johannesburg Observatory in South Africa.[28] It was later named after the native Shona people of Zimbabwe.[2] Classification and orbitMashona orbits the Sun in the outer main-belt at a distance of 2.9–3.8 AU once every 6 years and 3 months (2,277 days). Its orbit has an eccentricity of 0.13 and an inclination of 22° with respect to the ecliptic.In February 1923, it was first identified as {{mp|1923 CB}} at Heidelberg Observatory in Germany. The body's observation arc begins at Johannesburg, 5 days after its official discovery observation.[28] Physical characteristicsIn the Tholen classification, Mashona is a rare GC-type, a spectral type that transitions between the common C and rare G-type asteroids. LightcurvesUntil April 2010, three rotational lightcurves of Mashona have been obtained from photometric observations. Lightcurve analysis gave a well-defined rotation period between 9.74 and 9.76 hours with a brightness amplitude varying from 0.24 to 0.31 magnitude ({{small|U=3/2/3}}).[10][11][12] Diameter and albedoAccording to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Mashona measures between 89.160 and 104.119 kilometers in diameter and its surface has an albedo between 0.05 and 0.083.[5][6][7][8] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 107.54 kilometers based on an absolute magnitude of 8.57.[9] Among nearly half a million asteroids, Mashona belongs to the 200 largest body's.[41] NamingThis minor planet was named for the Shona people (Mashona), natives of Mashonaland in Zimbabwe, then Rhodesia.[2] The approved naming citation was published by the Minor Planet Center before November 1977 ({{small|M.P.C. 909}}).[43] References1. ^1 2 3 {{cite book |title = Dictionary of Minor Planet Names – (1467) Mashona |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 117 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1468 |chapter = (1467) Mashona }} [1][2][3][4][5][6][7][8][9][10][11][12]2. ^1 2 {{cite web |title = 1467 Mashona (1938 OE) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1467 |accessdate = 24 July 2017}} 3. ^1 {{cite web |title = MPC/MPO/MPS Archive |work = Minor Planet Center |url = http://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html |accessdate = 24 July 2017}} 4. ^1 2 {{cite web |title = Asteroids and comets rotation curves – (1467) Mashona |last = Behrend |first = Raoul |publisher = Geneva Observatory |url = http://obswww.unige.ch/~behrend/page4cou.html#001467 |accessdate = 24 July 2017}} 5. ^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= 24 July 2017}} 6. ^1 {{cite web |title = The largest asteroids and outer solar system objects |author = Wm. Robert Johnston |publisher = Johnston's Archive |url = http://www.johnstonsarchive.net/astro/largestasteroids.html |date = 7 February 2015 |accessdate = 24 July 2017}} 7. ^1 2 3 4 5 {{cite web |title = LCDB Data for (1467) Mashona |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1467%7CMashona |accessdate = 24 July 2017}} 8. ^1 2 3 4 {{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= 24 July 2017}} 9. ^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 }} 10. ^1 2 3 4 {{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= 24 July 2017}} 11. ^1 2 {{Cite journal |first1 = Claes-Ingvar |last1 = Lagerkvist |first2 = Anders |last2 = Erikson |first3 = Felix |last3 = Lahulla |first4 = Mario |last4 = De Martino |first5 = Andreas |last5 = Nathues |first6 = Mats |last6 = Dahlgren |date = January 2001 |title = A Study of Cybele Asteroids. I. Spin Properties of Ten Asteroids |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2001Icar..149..190L |journal = Icarus |volume = 149 |issue = 1 |pages = 190–197 |bibcode = 2001Icar..149..190L |doi = 10.1006/icar.2000.6507 |access-date= 24 July 2017}} 12. ^1 2 3 {{cite journal |display-authors = 6 |first1 = Adam |last1 = Waszczak |first2 = Chan-Kao |last2 = Chang |first3 = Eran O. |last3 = Ofek |first4 = Russ |last4 = Laher |first5 = Frank |last5 = Masci |first6 = David |last6 = Levitan |first7 = Jason |last7 = Surace |first8 = Yu-Chi |last8 = Cheng |first9 = Wing-Huen |last9 = Ip |first10 = Daisuke |last10 = Kinoshita |first11 = George |last11 = Helou |first12 = Thomas A. |last12 = Prince |first13 = Shrinivas |last13 = Kulkarni |date = September 2015 |title = Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015AJ....150...75W |journal = The Astronomical Journal |volume = 150 |issue = 3 |page = 35 |bibcode = 2015AJ....150...75W |doi = 10.1088/0004-6256/150/3/75 |arxiv = 1504.04041 |access-date= 24 July 2017}} }} External links
6 : Background asteroids|Discoveries by Cyril V. Jackson|Minor planets named for people|Named minor planets|GC-type asteroids (Tholen)|Astronomical objects discovered in 1938 |
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