| 词条 | 1168 Brandia |
| 释义 |
| minorplanet = yes | name = 1168 Brandia | background = #D6D6D6 | image = | image_size = | caption = | discovery_ref = | discoverer = E. Delporte | discovery_site = Uccle Obs. | discovered = 25 August 1930 | mpc_name = (1168) Brandia | alt_names = 1930 QA | pronounced = | named_after = Eugène Brand [2] {{small|(Belgian mathematician)}} | mp_category = main-belt{{·}}{{small|(middle)}} Eunomia [3][4] | orbit_ref = | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 0 | observation_arc = 82.70 yr (30,208 days) | aphelion = 3.1088 AU | perihelion = 1.9931 AU | semimajor = 2.5510 AU | eccentricity = 0.2187 | period = 4.07 yr (1,488 days) | mean_anomaly = 120.52° | mean_motion = {{Deg2DMS|0.2419|sup=ms}} / day | inclination = 12.735° | asc_node = 218.65° | arg_peri = 122.91° | dimensions = {{val|10.110|0.057}} km[6][7] 10.58 km {{small|(derived)}}[3] {{val|10.61|0.7}} km[9] | rotation = {{val|11.444}} h[10] {{val|11.444}} h[11] | albedo = 0.1375 {{small|(derived)}}[3] {{val|0.150|0.038}}[6] {{val|0.1505|0.0383}}[7] {{val|0.1526|0.021}}[9] | spectral_type = S [3] B–V {{=}} 0.860 U–B {{=}} 0.470 | abs_magnitude = {{val|12.30|0.23}}[19]{{·}}12.53[9]{{·}}12.65[3][7][11] }}1168 Brandia, provisional designation {{mp|1930 QA}}, is a stony Eunomian asteroid from the central regions of the asteroid belt, approximately 10 kilometers in diameter. Discovered by astronomer Eugène Delporte at Uccle Observatory in 1930, the asteroid was later named after mathematician Eugène Brand.[2] DiscoveryBrandia was discovered on 25 August 1930, by astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. Six nights later, the asteroid was independently discovered by Soviet astronomer Grigory Neujmin at Simeiz Observatory on 31 August 1930. The Minor Planet Center, however, only recognizes the first discoverer.[2][27] The body's observation arc begins at Uccle, two nights after its official discovery observation.[27]Orbit and classificationThis asteroid is a member of the Eunomia family ({{small|502}}), a prominent family of stony asteroids and the largest one in the intermediate main belt with more than 5,000 members.[3][4][31]{{rp|23}} Brandia orbits the Sun in the central main-belt at a distance of 2.0–3.1 AU once every 4 years and 1 month (1,488 days). Its orbit has an eccentricity of 0.22 and an inclination of 13° with respect to the ecliptic.Physical characteristicsBrandia is an assumed S-type asteroid,[3] which corresponds to the overall spectral type of the Eunomia family.[31]{{rp|23}} Rotation periodIn September 1989, a rotational lightcurve of Brandia was obtained from photometric observations by American astronomer Richard Binzel at CTIO and McDonald Observatory. Lightcurve analysis gave a well-defined rotation period of hours with a relatively high brightness variation of 0.62 magnitude ({{small|U=3}}).[11] An identical period of 11.444 hours with an amplitude of 0.50 magnitude was measured with a Celestron 14-inch telescope by Frederick Pilcher and published in 1985 ({{small|U=2}}).[10] Diameter and albedoAccording to the surveys carried out by the Infrared Astronomical Satellite IRAS and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Brandia measures 10.110 and 10.61 kilometers in diameter, and its surface has an albedo of 0.150 and 0.1526, respectively.[6][7][9] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1375 and a diameter of 10.58 kilometers based on an absolute magnitude of 12.65.[3] NamingThis minor planet was named after Belgian mathematician Eugène Brand, professor at the University of Brussels in Belgium. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ({{small|H 109}}).[2] References1. ^1 2 3 4 {{cite book |title = Dictionary of Minor Planet Names – (1168) Brandia |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 98 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1169 |chapter = (1168) Brandia }} [1][2][3][4][5][6][7][8][9][10][11]2. ^1 2 {{cite web |title = 1168 Brandia (1930 QA) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1168 |accessdate = 6 September 2017}} 3. ^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 = J. |last6 = Dailey |first7 = P. R. M. |last7 = Eisenhardt |first8 = R. S. |last8 = McMillan |first9 = T. B. |last9 = Spahr |first10 = M. F. |last10 = Skrutskie |first11 = D. |last11 = Tholen |first12 = R. G. |last12 = Walker |first13 = E. L. |last13 = Wright |first14 = E. |last14 = DeBaun |first15 = D. |last15 = Elsbury |first16 = T., IV |last16 = Gautier |first17 = S. |last17 = Gomillion |first18 = A. |last18 = Wilkins |date = November 2011 |title = Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M |journal = The Astrophysical Journal |volume = 741 |issue = 2 |page = 20 |bibcode = 2011ApJ...741...68M |doi = 10.1088/0004-637X/741/2/68 |arxiv = 1109.4096 |access-date= 6 September 2017}} 4. ^1 2 3 4 5 6 7 8 {{cite web |title = LCDB Data for (1168) Brandia |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1168%7CBrandia |accessdate = 6 September 2017}} 5. ^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= 6 September 2017}} 6. ^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 }} 7. ^1 2 {{Cite journal |first1 = Frederick |last1 = Pilcher |first2 = R. P. |last2 = Binzel |first3 = D. J. |last3 = Tholen |date = March 1985 |title = Rotations of 1168 Brandia and 1219 Britta |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1985MPBu...12...10P |journal = The Minor Planet Bulletin |volume = 12 |page = 10 |bibcode = 1985MPBu...12...10P |access-date= 6 September 2017}} 8. ^1 2 3 {{Cite journal |author = Binzel, R. P. |date = October 1987 |title = A photoelectric survey of 130 asteroids |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1987Icar...72..135B |journal = Icarus |volume = 72 |issue = 1 |pages = 135–208 |issn = 0019-1035 |bibcode = 1987Icar...72..135B |doi = 10.1016/0019-1035(87)90125-4 |access-date= 6 September 2017}} 9. ^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= 6 September 2017}} 10. ^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 = 6 September 2017}} 11. ^1 2 {{Cite book |first1 = D. |last1 = Nesvorný |first2 = M. |last2 = Broz |first3 = V. |last3 = Carruba |date = December 2014 |title = Identification and Dynamical Properties of Asteroid Families |journal = Asteroids IV |pages = 297–321 |bibcode = 2015aste.book..297N |doi = 10.2458/azu_uapress_9780816532131-ch016 |arxiv = 1502.01628 |isbn = 9780816532131 }} }} External links
5 : Eunomia asteroids|Discoveries by Eugène Joseph Delporte|Minor planets named for people|Named minor planets|Astronomical objects discovered in 1930 |
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