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| | Jerrie Swoboda is what the individual can call me and I totally dig that name. What me and my family love is acting but Naturally i can't make it all my profession really. The job I've been taking up for years is any kind of a people manager. Guam is even I've always been income. You does find my website here: http://circuspartypanama.com<br><br>My web-site: clash of clans cheat ([http://circuspartypanama.com redirected here]) |
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| '''130 Elektra''' is a very large outer [[main-belt]] [[asteroid]]. It was discovered by [[Christian Heinrich Friedrich Peters|C. H. F. Peters]] on February 17, 1873, and named after [[Electra]], an avenger in [[Greek mythology]].
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| Its spectrum is of the [[G-type asteroid|G type]], hence it probably has a [[1 Ceres|Ceres]]-like composition. Spectral signatures of [[organic compound]]s have been seen on Elektra's surface.<ref name=CruBro87>{{cite journal|title=Organic Matter on Asteroid 130 Elektra|journal=Science|pages=183|volume=238|year=1987|bibcode=1987Sci...238..183C|author=D.P. Cruikshank and R.H. Brown|doi=10.1126/science.238.4824.183|pmid=17800458|issue=4824}}</ref>
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| In the late 1990s, a network of astronomers worldwide gathered lightcurve data that was ultimately used to derive the spin states and shape models of 10 new asteroids, including (130) Elektra. The light curve of 130 Elektra forms a double sinusoid while the shape model is elongated and the derived rotation axis is perpendicular to the plane of the [[ecliptic]].<ref name="Durech2007"/><ref>Durech, J.; Kaasalainen, M.; Marciniak, A.; Allen, W. H. et al. “Asteroid brightness and geometry,” ''Astronomy and Astrophysics'', Volume 465, Issue 1, April I 2007, pp. 331-337.</ref>
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| Optical observations have found a satellite of this asteroid. Once the orbit is known, Elektra's mass can be reliably found. The value of 6.6{{e|18}} kg indicates a density of 1.3 ± 0.3 g/cm<sup>3</sup>. Optical observations have also determined that Elektra's shape is quite irregular, as well as giving indications of [[albedo]] differences of 5-15% on its surface.<ref name=MarKaaHom06/>
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| ==Satellite (S/2003 (130) 1)==
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| In 2003, a small [[natural satellite|moon]] of Elektra was detected using the [[Keck telescope|Keck II telescope]]. The diameter of the satellite is 4 km and it [[orbit]]s at a distance of about 1170 km. The satellite has been given the provisional designation '''S/2003 (130) 1'''. Due to only a few observations to date, its orbit is still relatively loosely constrained.<ref name=marchis>[http://astro.berkeley.edu/~fmarchis/Science/Asteroids/Elektra.html 130 Elektra and S/2003 (130) 1]'', orbit data website maintained by F. Marchis.</ref>
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| <!-- Additional parameters for this template are available at [[Template:Infobox Planet]]. -->
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| {{Infobox planet
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| | name=S/2003 (130) 1
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| | width=28em
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| | discovery=yes
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| | physical_characteristics = yes
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| | bgcolour=#A0FFA0
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| | minorplanet=yes
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| | discovery_ref = <ref name="iauc8183">[http://cfa-www.harvard.edu/iauc/08100/08183.html#Item1 IAUC 8183]</ref>
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| | discoverer=[[W. J. Merline]], [[P. M. Tamblyn]],<br>[[C. Dumas]], [[L. M. Close]],<br>[[C. R. Chapman]], and [[F. Menard]]
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| | discovered=15 August 2003
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| | mp_category=[[Main belt]]
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| | orbit_ref=<ref name=Marchis2008/>
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| | semimajor= 1318 ± 25 km
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| | eccentricity= 0.13 ± 0.03
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| | inclination= 25 ± 2
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| | period=5.2575 ± 0.0053 d
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| | avg_speed=23 m/s
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| | satellite_of = 130 Elektra
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| | dimensions= 6 ± 2 km <ref name=MarKaaHom06/>
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| | mass = ~4{{e|14}} kg <ref name="mass">Assuming a similar density to the primary.</ref>
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| | escape_velocity= ~ 4 m/s
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| | abs_magnitude=14.5<ref name=MarKaaHom06/>
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| }}
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| <!-- Additional parameters for this template are available at [[Template:Infobox Planet]]. -->
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| {{Infobox planet | discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0 | minorplanet = yes | width = 25em
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| | name=130 Elektra
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| | discovery_ref = <ref>[http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html Discovery Circumstances: Numbered Minor Planets], Minor Planet Centre</ref>
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| | discoverer=[[Christian Heinrich Friedrich Peters]]
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| | discovered=February 17, 1873
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| | alt_names=
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| | named_after = [[Electra]]
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| | mp_category=[[Main belt]]
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| | orbit_ref = <ref>[ftp://ftp.lowell.edu/pub/elgb/astorb.html ASTORB] orbital elements database, [[Lowell Observatory]]</ref>
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| | epoch=December 31, 2006 ([[Julian day|JD]] 2454100.5)
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| | semimajor=467.521 Gm (3.125 [[Astronomical unit|AU]])
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| | perihelion=369.263 Gm (2.468 AU)
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| | aphelion=565.778 Gm (3.782 AU)
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| | eccentricity=0.210
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| | period=2017.954 d (5.52 [[Julian year (astronomy)|a]])
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| | inclination=22.838°
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| | asc_node=145.635°
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| | arg_peri=234.753°
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| | mean_anomaly=225.604°
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| | avg_speed=16.66 km/s
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| | satellites = [[S/2003 (130) 1]]
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| | dimensions=215×155 ± 12 km<ref name=about>Based in IRAS mean diameter of 182±12 km, a/b ratio of 1.4 as per the following references</ref><ref name=IRAS>[http://www.psi.edu/pds/resource/imps.html Supplemental IRAS Minor Planet Survey]</ref><ref name=pds_spin>[http://www.psi.edu/pds/resource/spin.html PDS node spin vector database] (in particular, the synthetic compiled value of a/b=1.4).</ref><ref name=johnston>''[http://www.johnstonsarchive.net/astro/astmoons/am-00130.html (130) Elektra and S/2003 (130) 1]'', at Johnston's archive (maintained by W. R. Johnston).</ref>
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| | mass=6.6±0.4{{e|18}} kg<ref name=Marchis2008>{{cite journal
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| |last=Marchis |first=Franck
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| |author2=P. Descamps, J. Berthier, D. hestroffer, F. vachier, M. Baek, A. Harris, D. Nesvorny
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| |title=Main Belt Binary Asteroidal Systems With Eccentric Mutual Orbits
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| |journal=Icarus
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| |volume=195
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| |issue=1 |pages=295–316 |year=2008
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| |arxiv=0804.1385
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| |doi=10.1016/j.icarus.2007.12.010 |bibcode=2008Icar..195..295M}}</ref><br>1.28±0.10{{e|19}} kg<ref name="marchis"/><ref name="error">Error estimate derived from consideration of <math>M \propto a^3/P^2</math> and given errors in ''a'' and ''P''. See [[propagation of uncertainty]].</ref>
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| | density=1.3 ± 0.3 g/cm<sup>3</sup><ref name=Marchis2008/><br>3.8 ± 0.3 g/cm<sup>3</sup><ref name=marchis/>
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| | surface_grav=0.07 m/s<sup>2</sup><ref name=pointyend>On the extremities of the long axis.</ref>
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| | escape_velocity=0.13 km/s<ref name=pointyend/>
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| | sidereal_day =0.230103 d (5.52247 h)<ref name=MarKaaHom06>{{cite journal|author=F. Marchis ''et al.''|title=Shape, size and multiplicity of main-belt asteroids I. Keck Adaptive Optics survey|journal=Icarus|volume=185|pages=39|year=2006|bibcode=2006Icar..185...39M|doi=10.1016/j.icarus.2006.06.001|pmid=19081813|issue=1|pmc=2600456}}</ref>
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| | axial_tilt = 157°
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| | pole_ecliptic_lat = -88°<ref name=MarKaaHom06/>
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| | pole_ecliptic_lon = 68°
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| | temperatures=yes
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| | temp_name1 = [[Kelvin]]
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| | mean_temp_1 = ~157
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| | max_temp_1 = 251
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| | temp_name2 = Celsius
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| | max_temp_2 = -23°
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| | albedo= 0.076 ± 0.011 <ref name=IRAS>''[http://www.psi.edu/pds/resource/imps.html Supplemental IRAS minor planet survey]''</ref>
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| | spectral_type = [[G-type asteroid|G]] <ref name=PDStax>''[http://www.psi.edu/pds/resource/taxonomy.html PDS node taxonomy database]''</ref>
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| | abs_magnitude=7.12 <ref name=IRAS/>
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| }}
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| {{col-end}}
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| == References ==
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| {{Reflist|refs=
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| <ref name="Durech2007">{{Citation
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| | last1 = Durech
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| | first1 = J.
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| | last2 = Kaasalainen
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| | first2 = M.
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| | last3 = Marciniak
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| | first3 = A.
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| | display-authors = 1
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| | title = Physical models of ten asteroids from an observers' collaboration network
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| | work = Astronomy and Astrophysics
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| | volume = 465
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| | issue = 1
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| | pages = 331–337
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| |date=April 2007
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| | doi = 10.1051/0004-6361:20066347
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| | bibcode = 2007A&A...465..331D
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| | postscript= .
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| }}</ref>
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| }}
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| == External links ==
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| *''[http://astro.berkeley.edu/~fmarchis/Science/Asteroids/Elektra.html 130 Elektra and S/2003 (130) 1]'', orbit data website maintained by F. Marchis. Includes adaptive optics image of primary, and satellite orbit diagram.
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| *[http://www.johnstonsarchive.net/astro/astmoons/am-00130.html Data on (130) Elektra from Johnston's archive] (maintained by W. R. Johnston)
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| {{Minor planets navigator|129 Antigone|131 Vala}}
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| {{Small Solar System bodies}}
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| {{DEFAULTSORT:Elektra}}
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| [[Category:Binary asteroids]]
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| [[Category:G-type asteroids]]
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| [[Category:Main Belt asteroids]]
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| [[Category:Asteroids named from Greek mythology]]
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| [[Category:Astronomical objects discovered in 1873]]
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Jerrie Swoboda is what the individual can call me and I totally dig that name. What me and my family love is acting but Naturally i can't make it all my profession really. The job I've been taking up for years is any kind of a people manager. Guam is even I've always been income. You does find my website here: http://circuspartypanama.com
My web-site: clash of clans cheat (redirected here)