18 Melpomene: Perbedaan antara revisi
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{{Infobox planet
| image=A601.M993.shape.png
| image_size = 265
| caption= Model tiga dimensi dari 18 Melpomene, dibuat dengan menggunakan inversi kurva cahaya
| minorplanet=yes
|name=18 Melpomene
|discoverer=[[John Russell Hind]]
|discovered=[[24 Juni]] [[1852]]
|alt_names=
|named_after = [[Melpomene|Melpomène]]
|mp_category=[[Sabuk asteroid|Sabuk utama]]
|orbit_ref=<ref name=jpldata>{{cite web
|date=21 September 2008
|title=JPL Small-Body Database Browser: 18 Melpomene
|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=18
|access-date=26 November 2008}}</ref>
|epoch=October 22, 2004 ([[Hari Julian]] 2453300,5)
|semimajor=343,443 Gm (2,296 SA)
|perihelion=268,472 Gm (1,795 SA)
|aphelion=418,414 [[Giga-|Gm]] (2,797 [[Astronomical unit|SA]])
|eccentricity=0,218
|period=1270,552 [[hari|hr]] (3,48 [[Tahun Julian|a]])
|inclination=10,126[[derajat (satuan sudut)|°]]
|asc_node=150,547°
|arg_peri=227,975°
|mean_anomaly=205,245°
|avg_speed=19,42 km/[[detik|dtk]]
|dimensions=170x155x129 km<ref name=Baer/><br>(150×125 km)<ref name=Hubble1999>{{cite journal
|last=Storrs
|first=Alex
|coauthors=Weiss; Zellner; Burlsen; et al.
|title=Imaging Observations of Asteroids with Hubble Space Telescope
|journal=Icarus
|volume=137
|issue=2
|pages=260–268
|year=1999
|access-date=3 November 2008
|bibcode=1999Icar.,137.,260S
|archive-url=https://web.archive.org/web/20081030022816/http://web.media.mit.edu/~win/hstpub.pdf
|archive-date=2008-10-30
|deadurl=no
}}</ref><br>(150×170 km)<ref name=Hubble2005>{{cite journal
|last = Storrs
|first = Alex
|author2 = Dunne
|author3 = Conan
|author4 = Mugnier
|title = A closer look at main belt asteroids 1: WF/PC images
|journal = Icarus
|volume = 173
|issue = 2
|pages = 409–416
|year = 2005
|doi = 10.1016/j.icarus.2004.08.007
|url = http://scripts.mit.edu/~paleomag/articles/Storrs_Weiss_2005_Icarus.pdf
|access-date = 26 November 2008
|bibcode = 2005Icar..173..409S
|display-authors = etal
|url-status = dead
|archive-url = https://web.archive.org/web/20120310150819/http://scripts.mit.edu/~paleomag/articles/Storrs_Weiss_2005_Icarus.pdf
|archive-date = 10 Maret 2012}}</ref><br>140,6 ± 2,8 km ([[IRAS]])<ref name=jpldata/>
|mass=3,0{{e|18}} kg<ref name=Baer>{{cite web
|year=2008
|title=Recent Asteroid Mass Determinations
|publisher=Personal Website
|author=Jim Baer
|url=http://home.earthlink.net/~jimbaer1/astmass.txt
|accessdate=2008-11-27
|archive-date=2013-10-21
|archive-url=https://web.archive.org/web/20131021074442/http://home.earthlink.net/~jimbaer1/astmass.txt
|url-status=dead
}}</ref>
|density=1,69±0,66 g/cm<sup>3</sup><ref name=Baer/>
|surface_grav=~0,0393 m/s<sup>2</sup>
|escape_velocity=~0,0743 km/s
|rotation=0,482 21 hr (11,57 [[jam]])<ref name=jpldata/><ref>{{cite web|url=http://www.astrosurf.com/aude-old/map_files/AstVarMAP01-2003.htm|title=LIGHTCURVES AND MAP DATA ON NUMBERED ASTEROIDS N° 1 TO 52225|access-date=3 November 2008|publisher=AstroSurf|archive-url=https://web.archive.org/web/20051127063200/http://www.astrosurf.com/aude-old/map_files/AstVarMAP01-2003.htm|archive-date=2005-11-27|url-status=dead}}</ref>
|spectral_type=[[Asteroid tipe S]]<ref name=jpldata/>
|magnitude = 7,5<ref name="Pasachoff1983">{{cite book|author=Donald H. Menzel and Jay M. Pasachoff|year=1983|title=A Field Guide hingga the Stars and Planets|edition=ke-2|publisher=Houghton Mifflin|page=391|location=Boston, MA|isbn=0-395-34835-8 }}</ref> hingga 12,0
|abs_magnitude=6,51<ref name=jpldata/>
|albedo=0,223 ([[Albedo geometrik|geometrik]]) <ref name=jpldata/><ref>{{cite web|url=http://www.psi.edu/pds/archive/astdata04/simps04/diamalb.tab|title=Asteroid Data Archive|access-date=3 November 2008|publisher=Planetary Science Institute|archive-url=https://web.archive.org/web/20060623213811/http://www.psi.edu/pds/archive/astdata04/simps04/diamalb.tab|archive-date=2006-06-23|dead-url=no}}</ref>
|angular_size = 0,23" <!-- Horizons 2009-Oct-09 --> hingga 0,059"
|single_temperature=~177 [[kelvin|K]]}}
'''18 Melpomene''' ({{IPAc-en|m|ɛ|l|ˈ|p|ɒ|m|ᵻ|n|iː}},<ref>Noah Webster (1884) ''A Practical Dictionary of the English Language''</ref> {{Respell|mel|POM|i-nee}}; {{Lang-el|Μελπομένη}}) adalah sebuah [[asteroid]] besar dan cerah di [[sabuk utama]] Melpomene terdiri dari [[silikat]] dan [[logam]].
Melpomene ditemukan oleh [[John Russell Hind]] pada [[24 Juni]] [[1852]], dan dinamai mengikuti [[Melpomene]], seorang [[Musai]] dalam [[tragedi]] di [[mitologi Yunani]].
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== Pranala luar ==
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=18;orb=1 Orbital simulation] from JPL (Java) / [http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=18 Ephemeris]
{{Minor planets navigator|[[17 Thetis]]||[[19 Fortuna]]}}
{{Asteroid sabuk utama}}
{{Authority control}}
{{DEFAULTSORT:Melpomene}}
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[[Kategori:Asteroid yang dinamai dari mitologi Yunani]]
[[Kategori:Asteroid tipe S]]
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