| 词条 | 13025 Zürich |
| 释义 |
| minorplanet = yes | name = 13025 Zürich | background = #D6D6D6 | image = | image_size = | caption = | discovery_ref = | discovered = 28 January 1989 | discoverer = P. Wild | discovery_site = Zimmerwald Obs. | mpc_name = (13025) Zürich | alt_names = 1989 BA | named_after = Zürich {{small|(Swiss city)}}[2] | mp_category = {{nowrap|main-belt{{·}}Phocaea [3][4]}} | orbit_ref = | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 0 | observation_arc = 41.25 yr (15,066 days) | aphelion = 3.0429 AU | perihelion = 1.7221 AU | semimajor = 2.3825 AU | eccentricity = 0.2772 | period = 3.68 yr (1,343 days) | mean_anomaly = 279.41° | mean_motion = {{Deg2DMS|0.2680|sup=ms}} / day | inclination = 23.921° | asc_node = 342.72° | arg_peri = 140.93° | dimensions = {{val|4.89|0.10}} km[6] 5.28 km {{small|(calculated)}}[3] | rotation = {{val|18.53|0.02}} h[8] | albedo = 0.23 {{small|(assumed)}}[3] {{val|0.322|0.083}}[6] | spectral_type = S [3] | abs_magnitude = 13.40[6]{{·}}13.6[3] }}13025 Zürich, provisional designation {{mp|1989 BA}}, is a stony Phocaea asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 28 January 1989, by Swiss astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland, and later named for the Swiss city of Zürich.[2][16] Orbit and classificationThe stony S-type asteroid is a member of the Phocaea family ({{small|701}}),[4] a rather small group of asteroids with similar orbital characteristics, named after its largest member, 25 Phocaea. It orbits the Sun in the inner main-belt at a distance of 1.7–3.0 AU once every 3 years and 8 months (1,343 days). Its orbit has an eccentricity of 0.28 and an inclination of 24° with respect to the ecliptic. A first precovery was obtained at the Australian Siding Spring Observatory in 1975, extending the asteroid's observation arc by 14 years prior to its discovery.[16] LightcurveIn November 2006, American astronomer Brian Warner obtained a rotational lightcurve from photometric observations taken at his Palmer Divide Observatory in Colorado. The lightcurve showed a rotation period of {{val|18.53|0.02}} hours and a brightness variation of 0.24 in magnitude ({{small|U=2+}}).[8] Diameter and albedo estimatesAccording to the survey carried out by NASA's space-based Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures 4.9 kilometers in diameter and its surface has a high albedo of 0.32,[6] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.23 and hence calculates a somewhat larger diameter of 5.3 kilometers with an absolute magnitude of 13.6.[3] NamingThe minor planet is named after Zürich, Switzerland's largest city and economic center, located at the northwestern tip of Lake Zürich. It was founded by the Romans in the 1st century BC on the rivers Sihl and Limmat and was then called Turicum.[2] The official naming citation was published by the Minor Planet Center on 1 November 2001 ({{small|M.P.C. 43762}}).[24] References1. ^1 2 3 {{cite book |title = Dictionary of Minor Planet Names – (13025) Zürich |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 792 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_8727 |chapter = (13025) Zürich }} [1][2][3][4][5][6][7]2. ^1 2 {{cite web |title = 13025 Zurich (1989 BA) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=13025 |accessdate = 6 April 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 = 17 May 2016}} 4. ^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 = 1 November 2017}} 5. ^1 2 3 4 5 6 {{cite web |title = LCDB Data for (13025) Zurich |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=13025%7CZurich |accessdate = 17 May 2016}} 6. ^1 2 3 4 {{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= 17 May 2016}} 7. ^1 2 {{cite journal |author = Warner, Brian D. |date = June 2007 |title = Asteroid Lightcurve Analysis at the Palmer Divide Observatory - September-December 2006 |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2007MPBu...34...32W |journal = The Minor Planet Bulletin |volume = 34 |issue = 2 |pages = 32–37 |issn = 1052-8091 |bibcode = 2007MPBu...34...32W |access-date= 6 April 2016}} }} External links
5 : Phocaea asteroids|Discoveries by Paul Wild (Swiss astronomer)|Minor planets named for places|Named minor planets|Astronomical objects discovered in 1989 |
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