| 词条 | (145453) 2005 RR43 | |
| 释义 |
| minorplanet = yes | background = #C2E0FF | name = {{mp|(145453) 2005 RR|43}} | discovery_ref = | discoverer = A. C. Becker A. W. Puckett J. M. Kubica | discovered = 9 September 2005 | discovery_site = APO | image = Haumea family orbits.png | image_size = 320 | caption = (145453) 2005 RR43 among other Haumea family objects | mpc_name = {{mp|(145453) 2005 RR|43}} | alt_names = | mp_category = cubewano[2] extended (DES)[3] | orbit_ref = | epoch = 13 January 2016 (JD 2457400.5) | uncertainty = 3 | semimajor = {{Convert|43.163|AU|Tm|abbr=on}} | perihelion = {{Convert|37.276|AU|Tm|abbr=on}} | aphelion = {{Convert|49.050|AU|Tm|abbr=on|lk=on}} | inclination = 28.506° | eccentricity = 0.13639 | mean_anomaly = 43.576° | avg_speed = 0.00346°/d | period = 283.58 yr (103578 d) | arg_peri = 279.66° | asc_node = 85.852° | dimensions = 252 km[5] 213 km[6] | mass = | density = | escape_velocity = | sidereal_day = 7.87 h[5] | spectral_type = B−V=0.77, V−R=0.41[8] B0−V0=0.790[9] | single_temperature = | albedo = {{val|0.703|0.021}} (wavelength: 1.5 μm) {{val|0.828|0.049}} (wavelength: 2.0 μm)[10] | abs_magnitude = 4.1[12] 4.0[5][10] 4.4 (per Brown)[6] | mean_motion = {{Deg2DMS|0.0034757|sup=ms}} / day | rotation = {{Convert|7.87|h|d|abbr=on|lk=on}} | observation_arc = 14301 days (39.15 yr) | moid = {{Convert|36.394|AU|Tm|abbr=on}} | jupiter_moid = {{Convert|32.9176|AU|Tm|abbr=on}} }}{{mp|(145453) 2005 RR|43}}, also written as (145453) 2005 RR43, is a trans-Neptunian object (TNO) estimated to be about 250 km in diameter.[5][6] It was discovered on 9 September 2005 by Andrew Becker, Andrew Puckett and Jeremy Kubica at Apache Point Observatory in Sunspot, New Mexico. It is possibly a dwarf planet.[18] Origin{{Main|Haumea family}}Based on their common pattern of IR water-ice absorptions, neutral visible spectrum,[10] and the clustering of their orbital elements, the other KBOs {{mp|1995 SM|55}}, {{mpl|(19308) 1996 TO|66}}, {{mpl|(55636) 2002 TX|300}} and {{mpl|(120178) 2003 OP|32}} appear to be collisional fragments broken off the dwarf planet {{dp|Haumea}}. SurfaceThe surface is covered by water ice as attested by deep absorption at 1.5 and 2 μm in the infrared spectrum and neutral (i.e. non-red) colour. Scattering models reveal that the observed water ice is, at least in a significant fraction, crystalline and organics, detected on the surface of many TNOs, are completely absent.[10] These physical and orbital characteristics common with Haumea led to suggestion that {{mp|2005 RR|43}} is a member of the Haumea collisional family. The object, together with other members of the family ({{mpl|(19308) 1996 TO|66}}, {{mpl|(24835) 1995 SM|55}}, {{mpl|(55636) 2002 TX|300}} and {{mpl|(120178) 2003 OP|32}}), would be created from ice mantle ejected from the proto-Haumea as result of a collision with another large (around {{convert|1660|km|mi}}) body.[21]
See also
References1. ^1 {{cite web |title=MPEC 2009-R09 :Distant Minor Planets (2009 SEPT. 16.0 TT) |date=2009-09-04 |publisher=IAU Minor Planet Center |url=http://www.minorplanetcenter.org/mpec/K09/K09R09.html |accessdate=2011-01-08}} [1][2][3][4][5][6][7][8][9][10]2. ^1 {{cite web |author=Marc W. Buie |author-link=Marc W. Buie |type=2008-12-06 using 140 observations |title=Orbit Fit and Astrometric record for 145453 |publisher=SwRI (Space Science Department) |url=http://www.boulder.swri.edu/~buie/kbo/astrom/145453.html |accessdate=2009-10-04}} 3. ^1 2 3 4 {{cite journal |last=Carry |first=Benoit |last2=Snodgrass |first2=Colin |last3=Lacerda |first3=Pedro |last4=Hainaut |first4=Olivier |last5=Dumas |first5=Christophe |date=16 July 2012 |title=Characterisation of candidate members of (136108) Haumea's family: II. Follow-up observations |url=http://benoit.carry.free.fr/science/article/2012-AA-544-Carry.pdf |journal=Astronomy & Astrophysics |publisher=EDP Sciences |volume=544 |doi=10.1051/0004-6361/201219044 |arxiv=1207.6491 |accessdate=8 June 2014 |bibcode=2012A&A...544A.137C |pages=A137 |deadurl=yes |archiveurl=https://web.archive.org/web/20141107172122/http://benoit.carry.free.fr/science/article/2012-AA-544-Carry.pdf |archivedate=7 November 2014 |df= }} 4. ^1 2 3 {{cite web |title=How many dwarf planets are there in the outer solar system? |author=Michael E. Brown |authorlink=Michael E. Brown |url=http://www.gps.caltech.edu/~mbrown/dps.html |accessdate=2014-11-07 |deadurl=yes |archiveurl=https://web.archive.org/web/20111018154917/http://www.gps.caltech.edu/~mbrown/dps.html |archivedate=2011-10-18 |df= }} 5. ^1 {{cite journal |author=Snodgrass, Carry |author2=Dumas, Hainaut |title=Characterisation of candidate members of (136108) Haumea's family |journal=Astronomy and Astrophysics |date=16 December 2009 |arxiv=0912.3171 |doi=10.1051/0004-6361/200913031 |bibcode = 2010A&A...511A..72S |volume=511 |pages=A72}} 6. ^1 {{cite journal |title=The Youthful Appearance of the 2003 EL61 Collisional Family |author=David L. Rabinowitz |author2=Bradley E. Schaefer |author3=Martha W. Schaefer |author4=Suzanne W. Tourtellotte |date=2008 |journal=The Astronomical Journal |arxiv=0804.2864 |bibcode = 2008AJ....136.1502R |doi = 10.1088/0004-6256/136/4/1502 |volume=136 |pages=1502–1509}} 7. ^1 2 3 4 {{cite journal |title = The water ice rich surface of (145453) 2005 RR43: a case for a carbon-depleted population of TNOs? |author=Pinilla-Alonso, N. |author2=Licandro, J. |author3=Gil-Hutton, R. |author4=Brunetto, R. |journal=Astronomy and Astrophysics |date=June 2007 |volume=468 |issue=1 |bibcode=2007A&A...468L..25P |doi= 10.1051/0004-6361:20077294 |page= L25|arxiv= astro-ph/0703098 |url=http://www.aanda.org/articles/aa/pdf/2007/22/aa7294-07.pdf}} 8. ^1 (145453) = 2005 RR43 Orbit 9. ^1 {{cite web |url=http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=7462648&fileId=S1743921310001717 |title=Icy Dwarf Planets and TNOs |date=2010 |accessdate=August 27, 2015 |author=Tancredi, Gonzalo |pages=14}} 10. ^1 {{cite journal |author=Michael E. Brown |author2=Kristina M. Barkume |author3=Darin Ragozzine |author4=Emily L. Schaller |date=2007 |title=A collisional family of icy objects in the Kuiper belt |journal=Nature |volume=446 |issue=7133 |pages=294–296 |doi=10.1038/nature05619 |pmid=17361177 |bibcode= 2007Natur.446..294B}} }} External links
7 : Haumea family|Classical Kuiper belt objects|Discoveries by Andrew C. Becker|Discoveries by Andrew W. Puckett|Discoveries by Jeremy Martin Kubica|Possible dwarf planets|Astronomical objects discovered in 2005 |
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