| 词条 | 7476 Ogilsbie |
| 释义 |
| minorplanet = yes | name = 7476 Ogilsbie | background = #D6D6D6 | image = | image_size = | caption = | discovery_ref = | discovered = 14 April 1993 | discoverer = T. B. Spahr | discovery_site = Catalina Stn. | mpc_name = (7476) Ogilsbie | alt_names = 1993 GE{{·}}1971 HU | named_after = Brian Ogilsbie {{small|(friend of discoverer)}}[2] | mp_category = main-belt{{·}}{{small|(outer)}} [3] | orbit_ref = | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 0 | observation_arc = 63.82 yr (23,312 days) | aphelion = 3.8716 AU | perihelion = 2.4313 AU | semimajor = 3.1514 AU | eccentricity = 0.2285 | period = 5.59 yr (2,043 days) | mean_anomaly = 120.00° | mean_motion = {{Deg2DMS|0.1762|sup=ms}} / day | inclination = 25.775° | asc_node = 57.490° | arg_peri = 145.45° | dimensions = {{val|18.494|0.199}}[5] {{val|18.996|0.118}} km[6] 27.90 km {{small|(calculated)}}[3] | rotation = {{val|3.92|0.01}} h[8] | albedo = 0.057 {{small|(assumed)}}[3] {{val|0.1500|0.0264}}[6] {{val|0.180|0.020}}[5] | spectral_type = C [3] | abs_magnitude = 11.5[3]{{·}}11.3[6] }}7476 Ogilsbie, provisional designation {{mp|1993 GE}}, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 20 kilometers in diameter. It was discovered by American astronomer Timothy Spahr at the U.S. Catalina Station in Tucson, Arizona, on 14 April 1993.[16] Orbit and classificationOgilsbie orbits the Sun in the outer main-belt at a distance of 2.4–3.9 AU once every 5 years and 7 months (2,043 days). Its orbit has an eccentricity of 0.23 and an inclination of 26° with respect to the ecliptic. The first used precovery was obtained at Palomar Observatory in 1990, extending the asteroid's observation arc by 3 years prior to its discovery. The first (unused) observation at Palomar dates back to 1953.[16]Physical characteristicsIn 2010, a photometric lightcurve analysis by Italian astronomer Andrea Ferrero at the Bigmuskie Observatory ({{small|B88}}) in Mombercelli, Italy, rendered a well-defined rotation period of {{val|3.92|0.01}} hours with a brightness amplitude of 0.40 in magnitude ({{small|U=3}}).[8] According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, Ogilsbie has a diameter of 18.5 and 19.0 kilometer based on an albedo of 0.15 and 0.18, respectively,[6][5] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and hence calculates a larger diameter of 27.9 kilometers.[3] NamingThis minor planet was named in memory of Brian K. Ogilsbie (1970–1997). School mate and good friend, he is well remembered by the discoverer for the long talks they had on their excursions.[2] The official naming citation was published by the Minor Planet Center on 27 April 2002 ({{small|M.P.C. 45336}}).[24] References1. ^1 2 {{cite book |title = Dictionary of Minor Planet Names – (7476) Ogilsbie |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 599 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_6508 |chapter = (7476) Ogilsbie }} [1][2][3][4][5][6][7]2. ^1 2 {{cite web |title = 7476 Ogilsbie (1993 GE) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=7476 |accessdate = 1 February 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 3 4 5 6 {{cite web |title = LCDB Data for (7476) Ogilsbie |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=7476%7COgilsbie |accessdate = 17 May 2016}} 5. ^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 |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...90M |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 |access-date= 17 May 2016}} 6. ^1 2 {{Cite journal |author = Ferrero, Andrea |date = October 2010 |title = Lightcurve Determination of 2954 Delsemme, 3305 Ceadams and 7476 Ogilsbie |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2010MPBu...37..145F |journal = The Minor Planet Bulletin |volume = 37 |issue = 4 |page = 145 |issn = 1052-8091 |bibcode = 2010MPBu...37..145F |access-date= 17 May 2016}} 7. ^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= 5 December 2016}} }} External links
5 : Background asteroids|Discoveries by Timothy B. Spahr|Minor planets named for people|Named minor planets|Astronomical objects discovered in 1993 |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。