| 词条 | 1905 Ambartsumian |
| 释义 |
| minorplanet = yes | name = 1905 Ambartsumian | background = #D6D6D6 | image = 1905Ambartsumian (Lightcurve Inversion).png | image_size = 265 | caption = {{longitem|Lightcurve-based 3D-model of Ambartsumian|style=padding: 5px 0; line-height: 1.3em;}} | discovery_ref = | discovered = 14 May 1972 | discoverer = T. Smirnova | discovery_site = {{nowrap|Crimean Astrophysical Obs.}} | mpc_name = (1905) Ambartsumian | alt_names = 1972 JZ{{·}}1932 FC {{mp|1952 HO|3}}{{·}}1959 QD 1962 JX{{·}}1969 PF {{mp|1976 SS|5}} | named_after = Victor Ambartsumian {{small|(theoretical astrophysicist)}}[2] | mp_category = main-belt{{·}}{{small|(inner)}} | orbit_ref = | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 0 | observation_arc = 84.99 yr (31,043 days) | aphelion = 2.5842 AU | perihelion = 1.8624 AU | semimajor = 2.2233 AU | eccentricity = 0.1623 | period = 3.32 yr (1,211 days) | mean_anomaly = 224.81° | mean_motion = {{Deg2DMS|0.2973|sup=ms}} / day | inclination = 2.6158° | asc_node = 201.37° | arg_peri = 61.590° | dimensions = {{val|8.008|0.417}} km[4] {{val|12|5}} km {{small|(generic)}}[5] | rotation = | albedo = {{val|0.229|0.037}}[4] | spectral_type = | abs_magnitude = 12.8 }}1905 Ambartsumian, provisional designation {{mp|1972 JZ}}, is an asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 14 May 1972, by Russian astronomer Tamara Smirnova at the Crimean Astrophysical Observatory, Nauchnyj, on the Crimean peninsula.[8] The asteroid was named after theoretical astrophysicist Victor Ambartsumian.[2] Orbit and classificationAmbartsumian orbits the Sun in the inner main-belt at a distance of 1.9–2.6 AU once every 3 years and 4 months (1,211 days). Its orbit has an eccentricity of 0.16 and an inclination of 3° with respect to the ecliptic. It was first identified as {{mp|1932 FC}} at Simeiz Observatory in 1932, extending the body's observation arc by 40 years prior to its official discovery observation.[8]Physical characteristicsAccording to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Ambartsumian measures 8.0 kilometers in diameter and its surface has an albedo of 0.23.[4] When using a generic diameter-to-magnitude conversion, it has a diameter of 7–17 kilometers, based on an absolute magnitude of 12.8 and an albedo in the range of 0.05–0.25, which accounts for both the brighter stony as well as for the darker carbonaceous spectral types.[5] As of 2017, Ambartsumian{{'}}s composition, rotation period and shape remain unknown.[15] NamingThis minor planet was named after Soviet–Armenian theoretical astrophysicist Victor Ambartsumian (1908–1996), founder of the Soviet School for Astrophysics, president of the Academy of Sciences of the Armenian SSR, director of the Byurakan Observatory, and president of the IAU (1961–1964).[2] The official naming citation was published by the Minor Planet Center before November 1977 ({{small|M.P.C. 3937}}).[17] References1. ^1 2 3 {{cite book |title = Dictionary of Minor Planet Names – (1905) Ambartsumian |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 153 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1906 |chapter = (1905) Ambartsumian }} [1][2][3][4][5][6]2. ^1 2 {{cite web |title = 1905 Ambartsumian (1972 JZ) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1905 |accessdate = 11 December 2016}} 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 = 11 December 2016}} 4. ^1 2 {{cite web |title = Absolute Magnitude (H) |publisher = NASA/JPL |url = http://neo.jpl.nasa.gov/glossary/h.html |accessdate = 2014-06-28}} 5. ^1 2 3 {{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= 10 December 2016}} 6. ^1 {{cite web |title = LCDB Data for (1905) Ambartsumian |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1905%7CAmbartsumian |accessdate = 9 June 2017}} }} External links
5 : Background asteroids|Discoveries by Tamara Mikhaylovna Smirnova|Minor planets named for people|Named minor planets|Astronomical objects discovered in 1972 |
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