“10645 Brač”的意思、由来-开放百科全书

The asteroid is a member of the Eunomia family, a large group of S-type asteroids and the most prominent family in the intermediate main-belt. It orbits the Sun at a distance of 2.2–3.1 AU once every 4 years and 4 months (1,583 days). Its orbit has an eccentricity of 0.18 and an inclination of 13° with respect to the ecliptic. The first precovery was taken at the U.S. Goethe Link Observatory in 1962, extending the asteroid's observation arc by 37 years prior to discovery.^[18]

Physical characteristics

In October 2014, photometric observations by Italian astronomer Silvano Casulli gave a rotational lightcurve with a period of {{val|2.78592|0.00003}} hours and a brightness amplitude of 0.31 in magnitude ({{small|U=3-}}).^[8] Three weeks later, a second lightcurve was obtained at the U.S. Etscorn Campus Observatory in New Mexico, rendering a concurring period of {{val|2.785|0.005}} with an identical variation in brightness ({{small|U=3-}}).^[7]

According to the survey carried out by NASA's space-based Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures 10.3 kilometers in diameter and its surface has an albedo of {{val|0.202|0.038}},^[6] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.21 and calculates a diameter of 9.6 kilometers.^[3] A large-scale survey by Pan-STARRS (PS1) assigns an LS-type, an intermediary spectral type between the common, stony S-types and the rather rare and reddish L-type asteroids.^[12]

Naming

This minor planet was named after the Croatian island of Brač, the largest Dalmatian island in the Adriatic sea, and the place where the Blaca hermitage Observatory is located.^[2] The approved naming citation was published by the Minor Planet Center on 15 December 2005 ({{small|M.P.C. 55720}}).^[27]

References

1. ^¹²³{{cite book |title = Dictionary of Minor Planet Names – (10645) Brač, Addendum to Fifth Edition: 2003–2005 |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 55 |date = 2006 |isbn = 978-3-540-34360-8 |doi = 10.1007/978-3-540-34361-5_477 |chapter = (10645) Brač [2.66, 0.18, 12.5] }}
2. ^¹²{{cite web |title = 10645 Brac (1999 ES4) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=10645 |accessdate = 12 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. ^¹²{{cite web |title = Asteroids and comets rotation curves – (10645) Brac |last = Behrend |first = Raoul |publisher = Geneva Observatory |url = http://obswww.unige.ch/~behrend/page5cou.html#010645 |accessdate = 17 May 2016}}
5. ^¹²³⁴⁵⁶{{cite web |title = LCDB Data for (10645) Brac |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=10645%7CBrac |accessdate = 17 May 2016}}
6. ^¹²³⁴{{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. ^¹²{{Cite journal |first1 = Daniel A. |last1 = Klinglesmith |first2 = Austin |last2 = DeHart |first3 = Jesse |last3 = Hanowell |first4 = Sebastian |last4 = Hendrickx |date = April 2015 |title = Asteroids at Etscorn Campus Observatory: 2014 September - December |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015MPBu...42..101K |journal = The Minor Planet Bulletin |volume = 42 |issue = 2 |pages = 101–104 |issn = 1052-8091 |bibcode = 2015MPBu...42..101K |access-date= 17 May 2016}}
8. ^¹²³{{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= 17 May 2016}}

词条	10645 Brač
释义	Classification and orbit Physical characteristics Naming References External links {{Infobox planet \| minorplanet = yes \| name = 10645 Brač \| background = #D6D6D6 \| image = \| image_size = \| caption = \| discovery_ref = \| discovered = 14 March 1999 \| discoverer = K. Korlević \| discovery_site = Višnjan Obs. \| mpc_name = (10645) Brač \| alt_names = {{mp\|1999 ES\|4}}{{·}}1962 TN 1968 BF{{·}}{{mp\|1975 TJ\|1}} 1980 YK{{·}}{{mp\|1986 EH\|5}} {{mp\|1988 SX\|4}} \| named_after = Brač {{small\|(Croatian island)}}^[2] \| mp_category = main-belt{{·}}Eunomia ^[3] \| orbit_ref = \| epoch = 4 September 2017 (JD 2458000.5) \| uncertainty = 0 \| observation_arc = 54.67 yr (19,968 days) \| aphelion = 3.1430 AU \| perihelion = 2.1725 AU \| semimajor = 2.6578 AU \| eccentricity = 0.1826 \| period = 4.33 yr (1,583 days) \| mean_anomaly = 224.98° \| mean_motion = {{Deg2DMS\|0.2275\|sup=ms}} / day \| inclination = 12.520° \| asc_node = 351.57° \| arg_peri = 44.961° \| dimensions = 9.60 km {{small\|(calculated)}}^[3] {{val\|10.26\|0.11}} km^[6] \| rotation = {{val\|2.785\|0.005}} h^[7] {{val\|2.78592\|0.00003}} h^[8] \| albedo = {{val\|0.202\|0.038}}^[6] 0.21 {{small\|(assumed)}}^[3] \| spectral_type = S ^[3]{{·}}LS ^[12] \| abs_magnitude = 12.5{{·}}12.4^[3]{{·}}12.3^[6]{{·}}{{val\|12.41\|0.50}}^[12] }}10645 Brač, provisional designation {{mp\|1999 ES\|4}}, is a stony Eunomia asteroid from the central region of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 14 March 1999, by Croatian astronomer Korado Korlević at Višnjan Observatory, and named after the Croatian island of Brač.^[2]^[18] Classification and orbit The asteroid is a member of the Eunomia family, a large group of S-type asteroids and the most prominent family in the intermediate main-belt. It orbits the Sun at a distance of 2.2–3.1 AU once every 4 years and 4 months (1,583 days). Its orbit has an eccentricity of 0.18 and an inclination of 13° with respect to the ecliptic. The first precovery was taken at the U.S. Goethe Link Observatory in 1962, extending the asteroid's observation arc by 37 years prior to discovery.^[18] Physical characteristics In October 2014, photometric observations by Italian astronomer Silvano Casulli gave a rotational lightcurve with a period of {{val\|2.78592\|0.00003}} hours and a brightness amplitude of 0.31 in magnitude ({{small\|U=3-}}).^[8] Three weeks later, a second lightcurve was obtained at the U.S. Etscorn Campus Observatory in New Mexico, rendering a concurring period of {{val\|2.785\|0.005}} with an identical variation in brightness ({{small\|U=3-}}).^[7] According to the survey carried out by NASA's space-based Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures 10.3 kilometers in diameter and its surface has an albedo of {{val\|0.202\|0.038}},^[6] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.21 and calculates a diameter of 9.6 kilometers.^[3] A large-scale survey by Pan-STARRS (PS1) assigns an LS-type, an intermediary spectral type between the common, stony S-types and the rather rare and reddish L-type asteroids.^[12] Naming This minor planet was named after the Croatian island of Brač, the largest Dalmatian island in the Adriatic sea, and the place where the Blaca hermitage Observatory is located.^[2] The approved naming citation was published by the Minor Planet Center on 15 December 2005 ({{small\|M.P.C. 55720}}).^[27] References 1. ^¹²³{{cite book \|title = Dictionary of Minor Planet Names – (10645) Brač, Addendum to Fifth Edition: 2003–2005 \|last = Schmadel \| first = Lutz D. \|publisher = Springer Berlin Heidelberg \|page = 55 \|date = 2006 \|isbn = 978-3-540-34360-8 \|doi = 10.1007/978-3-540-34361-5_477 \|chapter = (10645) Brač [2.66, 0.18, 12.5] }} 2. ^¹²{{cite web \|title = 10645 Brac (1999 ES4) \|work = Minor Planet Center \|url = http://www.minorplanetcenter.net/db_search/show_object?object_id=10645 \|accessdate = 12 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. ^¹²{{cite web \|title = Asteroids and comets rotation curves – (10645) Brac \|last = Behrend \|first = Raoul \|publisher = Geneva Observatory \|url = http://obswww.unige.ch/~behrend/page5cou.html#010645 \|accessdate = 17 May 2016}} 5. ^¹²³⁴⁵⁶{{cite web \|title = LCDB Data for (10645) Brac \|publisher = Asteroid Lightcurve Database (LCDB) \|url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=10645%7CBrac \|accessdate = 17 May 2016}} 6. ^¹²³⁴{{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. ^¹²{{Cite journal \|first1 = Daniel A. \|last1 = Klinglesmith \|first2 = Austin \|last2 = DeHart \|first3 = Jesse \|last3 = Hanowell \|first4 = Sebastian \|last4 = Hendrickx \|date = April 2015 \|title = Asteroids at Etscorn Campus Observatory: 2014 September - December \|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015MPBu...42..101K \|journal = The Minor Planet Bulletin \|volume = 42 \|issue = 2 \|pages = 101–104 \|issn = 1052-8091 \|bibcode = 2015MPBu...42..101K \|access-date= 17 May 2016}} 8. ^¹²³{{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= 17 May 2016}} ^[1]^[2]^[3]^[4]^[5]^[6]^[7]^[8] }} External links Asteroid Lightcurve Database (LCDB), query form (info) [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (10001)-(15000) – Minor Planet Center {{JPL small body}} {{Minor planets navigator \| \|number=10645 \|10646 Machielalberts}}{{Small Solar System bodies}}{{DEFAULTSORT:Brac}} 5 : Eunomia asteroids\|Discoveries by Korado Korlević\|Minor planets named for places\|Named minor planets\|Astronomical objects discovered in 1999
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Classification and orbit

Physical characteristics

Naming

References

External links