| 词条 | 2013 LX28 |
| 释义 |
| minorplanet = yes | background = #FFC2E0 | name = {{mp|2013 LX|28}} | image = | caption = | discoverer = Pan-STARRS | discovered = June 12, 2013 | mpc_name = {{mp|2013 LX|28}} | alt_names = | mp_category = Apollo asteroid,[1][2] Venus crosser, Earth crosser | orbit_ref = [2][3][4] | epoch = 13 January 2016 (JD 2457400.5) | aphelion = {{Convert|1.4543719|AU|Gm|abbr=on|lk=on}} | perihelion = {{Convert|0.5488609|AU|Gm|abbr=on}} | semimajor = {{Convert|1.00161641|AU|Gm|abbr=on}} | eccentricity = 0.4520249 | period = 1.00 yr (366.14 d) | inclination = 49.97420° | asc_node = 76.679354° | arg_peri = 345.77666° | mean_anomaly = 61.458811° | dimensions = 130–300 m{{ref label|A|a|none}}[5] | mass = | density = | rotation = | albedo = | single_temperature = | spectral_type = | abs_magnitude = 21.7[2] | mean_motion = {{Deg2DMS|0.9832228|sup=ms}} /day | uncertainty = 1 | moid = {{Convert|0.373137|AU|Gm|abbr=on}} | jupiter_moid = {{Convert|3.8786|AU|Gm|abbr=on}} }}{{mp|2013 LX|28}}, is an asteroid, classified as near-Earth object of the Apollo group that is a temporary quasi-satellite of the Earth, the third known Earth quasi-satellite.[6][7] Discovery, orbit and physical properties{{mp|2013 LX|28}} was discovered on June 12, 2013. As of September 2014, it has been observed 26 times with a data-arc span of 349 days. It is an Apollo asteroid and its semi-major axis (1.0016 AU) is very similar to that of the Earth but it has relatively high eccentricity (0.4521) and high orbital inclination (49.9761°). With an absolute magnitude of 21.7, it has a diameter in the range 130–300 m (for an assumed albedo range of 0.04–0.20).Quasi-satellite dynamical state and orbital evolution{{mp|2013 LX|28}} has been identified as an Earth quasi-satellite following a kidney-shaped retrograde orbit around the Earth.[6][7]See also
Notes{{refbegin}}
References1. ^{{cite web|url=http://www.minorplanetcenter.org/iau/lists/Apollos.html|title=List Of Apollo Minor Planets (by designation)|publisher=Minorplanetcenter.org|access-date=24 December 2014}} 2. ^1 2 {{Cite SBDB|title=2013 LX28|id=3643996|access-date=3 April 2016}} 3. ^{{cite web|url=http://hamilton.dm.unipi.it/astdys/index.php?pc=1.1.0&n=2013+LX28|title=AstDyS|publisher=Hamilton.dm.unipl.it|access-date=24 December 2014}} 4. ^{{cite web|url=http://newton.dm.unipi.it/neodys2/index.php?pc=1.1.0&n=2013+LX28|title=NEODyS|publisher=Newton.dm.unipl.it|access-date=24 December 2014}} 5. ^{{cite web|url=http://neo.jpl.nasa.gov/glossary/h.html|title=Glossary: Absolute Magnitude (H)|publisher=Neo.jpl.nasa.gov|access-date=24 December 2014}} 6. ^1 {{Cite journal | title=A Kozai-resonating Earth quasi-satellite |first1=M. | last1=Connors | date=|journal=Monthly Notices of the Royal Astronomical Society | volume = 437|issue = 1|pages = L85-L89|doi = 10.1093/mnras/slt147 | arxiv = | bibcode = 2014MNRAS.437L..85C}} 7. ^1 {{Cite journal | title=Asteroid 2014 OL339: yet another Earth quasi-satellite |first1=C. | last1=de la Fuente Marcos|last2=de la Fuente Marcos|first2= R. | date=|journal=Monthly Notices of the Royal Astronomical Society | volume = 445 |issue = 3 |pages = 2985–2994 |doi = 10.1093/mnras/stu1978 | arxiv = 1409.5588 | bibcode = 2014MNRAS.445.2961D }}
External links
6 : Apollo asteroids|Minor planet object articles (unnumbered)|Venus-crosser asteroids|Earth-crosser asteroids|Earth co-orbital asteroids|Astronomical objects discovered in 2013 |
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