| 词条 | 1295 Deflotte |
| 释义 |
| minorplanet = yes | name = 1295 Deflotte | background = #D6D6D6 | image = | image_size = | caption = | discovery_ref = | discoverer = L. Boyer | discovery_site = Algiers Obs. | discovered = 25 November 1933 | mpc_name = (1295) Deflotte | alt_names = 1933 WD{{·}}1932 RE 1938 QF{{·}}1939 VN 1941 CE{{·}}1947 CA 1951 TV{{·}}1963 TU | pronounced = | named_after = Deflotte [2] {{small|(discoverer's nephew)}} | mp_category = main-belt{{·}}{{small|(outer)}} [4] | orbit_ref = | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 0 | observation_arc = 83.61 yr (30,538 days) | aphelion = 3.8043 AU | perihelion = 2.9788 AU | semimajor = 3.3916 AU | eccentricity = 0.1217 | period = 6.25 yr (2,281 days) | mean_anomaly = 131.90° | mean_motion = {{Deg2DMS|0.1578|sup=ms}} / day | inclination = 2.8858° | asc_node = 185.08° | arg_peri = 275.34° | dimensions = {{val|45.67|1.36}} km[6] {{val|47.407|0.221}} km[7] 47.99 km {{small|(derived)}}[4] {{val|48.03|1.8}} km[9] {{val|48.68|16.05}} km[10] {{val|49.07|18.00}} km[11] {{val|51.048|0.525}} km[12] | rotation = {{val|14.64|0.05}} h[13] | albedo = {{val|0.0390|0.0079}}[12] {{val|0.04|0.02}}[10] {{val|0.04|0.03}}[11] 0.0402 {{small|(derived)}}[4] {{val|0.0441|0.004}}[9] {{val|0.046|0.014}}[7] {{val|0.049|0.003}}[6] | spectral_type = C [4] | abs_magnitude = 10.60[6][9][12]{{·}}10.70[4][10]{{·}}{{val|10.84|0.20}}[28]{{·}}10.93[11] }}1295 Deflotte, provisional designation {{mp|1933 WD}}, is a carbonaceous asteroid from the outer regions of the asteroid belt, approximately 48 kilometers in diameter. It was discovered on 25 November 1933, by French astronomer Louis Boyer at the Algiers Observatory in Algeria, North Africa.[30] The asteroid was named after the discoverer's nephew.[2] Orbit and classificationDeflotte is a non-family asteroid from the main belt's background population. It orbits the Sun in the outer main-belt at a distance of 3.0–3.8 AU once every 6 years and 3 months (2,281 days). Its orbit has an eccentricity of 0.12 and an inclination of 3° with respect to the ecliptic.The asteroid was first identified as {{mp|1932 RE}} at Heidelberg Observatory in September 1932. The body's observation arc begins with its official discovery observation at Algiers in November 1933.[30] Physical characteristicsDeflotte is an assumed carbonaceous C-type asteroid.[4]Rotation periodIn September 2007, a rotational lightcurve of Deflotte was obtained from photometric observations by French amateur astronomer René Roy. Lightcurve analysis gave a rotation period of 14.64 hours with a brightness amplitude of 0.16 magnitude ({{small|U=2}}).[13] Diameter and albedoAccording to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Deflotte measures between 45.67 and 51.048 kilometers in diameter and its surface has an albedo between 0.0390 and 0.049.[6][7][9][10][11][12] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0402 and a diameter of 47.99 kilometers based on an absolute magnitude of 10.7.[4] NamingThis minor planet was named after Louis Boyer's nephew. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ({{small|H 118}}).[2] References1. ^1 2 3 {{cite book |title = Dictionary of Minor Planet Names – (1295) Deflotte |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 106 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1296 |chapter = (1295) Deflotte }} [1][2][3][4][5][6][7][8][9][10][11]2. ^1 2 {{cite web |title = 1295 Deflotte (1933 WD) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1295 |accessdate = 14 September 2017}} 3. ^1 2 {{cite web |title = Asteroids and comets rotation curves – (1295) Deflotte |last = Behrend |first = Raoul |publisher = Geneva Observatory |url = http://obswww.unige.ch/~behrend/page4cou.html#001295 |accessdate = 14 September 2017}} 4. ^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= 14 September 2017}} 5. ^1 2 3 4 5 6 7 {{cite web |title = LCDB Data for (1295) Deflotte |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1295%7CDeflotte |accessdate = 14 September 2017}} 6. ^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. 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L. |last9 = Wright |date = September 2016 |title = NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016AJ....152...63N |journal = The Astronomical Journal |volume = 152 |issue = 3 |page = 12 |bibcode = 2016AJ....152...63N |doi = 10.3847/0004-6256/152/3/63 |arxiv = 1606.08923 |access-date= 14 September 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= 14 September 2017}} 9. ^1 2 3 4 {{cite journal |first1 = E. F. |last1 = Tedesco |first2 = P. V. |last2 = Noah |first3 = M. |last3 = Noah |first4 = S. D. |last4 = Price |date = October 2004 |title = IRAS Minor Planet Survey V6.0 |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2004PDSS...12.....T |journal = NASA Planetary Data System |volume = 12 |pages = IRAS-A-FPA-3-RDR-IMPS-V6.0 |bibcode = 2004PDSS...12.....T |access-date= 14 September 2017}} 10. ^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 }} 11. ^1 {{cite journal |display-authors = 6 |first1 = Peter |last1 = Veres |first2 = Robert |last2 = Jedicke |first3 = Alan |last3 = Fitzsimmons |first4 = Larry |last4 = Denneau |first5 = Mikael |last5 = Granvik |first6 = Bryce |last6 = Bolin |first7 = Serge |last7 = Chastel |first8 = Richard J. |last8 = Wainscoat |first9 = William S. |last9 = Burgett |first10 = Kenneth C. |last10 = Chambers |first11 = Heather |last11 = Flewelling |first12 = Nick |last12 = Kaiser |first13 = Eugen A. |last13 = Magnier |first14 = Jeff S. |last14 = Morgan |first15 = Paul A. |last15 = Price |first16 = John L. |last16 = Tonry |first17 = Christopher |last17 = Waters |date = November 2015 |title = Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V |journal = Icarus |volume = 261 |pages = 34–47 |bibcode = 2015Icar..261...34V |doi = 10.1016/j.icarus.2015.08.007 |arxiv = 1506.00762 |access-date= 14 September 2017}} }} External links
5 : Background asteroids|Discoveries by Louis Boyer (astronomer)|Minor planets named for people|Named minor planets|Astronomical objects discovered in 1933 |
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