| 词条 | 18 Melpomene |
| 释义 |
| image=A601.M993.shape.png | image_size = 265 | caption= Three-dimensional model of 18 Melpomene created using light-curve inversions | minorplanet=yes | background=#D6D6D6 | name=18 Melpomene | symbol= | discoverer=John Russell Hind | discovered=June 24, 1852 | mpc_name=(18) Melpomene | alt_names= | pronounced = {{IPAc-en|m|ɛ|l|ˈ|p|ɒ|m|ᵻ|n|iː}} {{Respell|mel|POM|i-nee}} | named_after = Melpomenē | mp_category=Main belt | orbit_ref=[1] | epoch=October 22, 2004 (JD 2453300.5) | semimajor=343.443 Gm (2.296 AU) | perihelion=268.472 Gm (1.795 AU) | aphelion=418.414 Gm (2.797 AU) | eccentricity=0.218 | period=1270.552 d (3.48 a) | inclination=10.126° | asc_node=150.547° | arg_peri=227.975° | mean_anomaly=205.245° | dimensions={{nowrap|170 × 155 × 129 km}}[2] (150×125 km)[3] (150×170 km)[4] {{nowrap|140.6 ± 2.8 km (IRAS)}}[1] | mass=3.0{{e|18}} kg[2] | density=1.69±0.66 g/cm3[2] | rotation=0.482 21 d (11.57 h)[1][9] | spectral_type=S[1] | magnitude = 7.5[11] to 12.0 | abs_magnitude=6.51[1] | albedo=0.223[1][14] | angular_size = 0.23" to 0.059" }}Melpomene (minor planet designation: 18 Melpomene) is a large, bright main-belt asteroid that was discovered by J. R. Hind on June 24, 1852, and named after Melpomenē, the Muse of tragedy in Greek mythology. It is classified as an S-type asteroid and is composed of silicates and metals. Melpomene occulted the star SAO 114159 on December 11, 1978. A possible Melpomenean satellite with a diameter at least 37 km was detected. The satellite candidate received a provisional designation S/1978 (18) 1.[16] In 1988 a search for satellites or dust orbiting this asteroid was performed using the UH88 telescope at the Mauna Kea Observatories, but the effort came up empty.[17] Melpomene was observed with the Hubble Space Telescope in 1993. It was able to resolve the asteroid's slightly elongated shape, but no satellites were detected.[3] Melpomene has been studied by radar.[19] References1. ^1 2 3 4 5 6 {{Citation | first1 = Donald K. | last1 = Yeomans | title = 18 Melpomene | work = JPL Small-Body Database Browser | publisher = NASA Jet Propulsion Laboratory | url = http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=18 | accessdate= 2013-04-07 | postscript= .}} [1][2][3][4][5][6][7][8][9][10]2. ^1 {{Citation | title = IAUC 3315: 1978 (18) 1; WZ Sge | publisher = Central Bureau for Astronomical Telegrams | url = http://www.cbat.eps.harvard.edu/iauc/03300/03315.html | accessdate = 2011-07-05 | postscript= .}} 3. ^1 {{Citation | last1 = Gradie | first1 = J. | last2 = Flynn | first2 = L. | title = A Search for Satellites and Dust Belts Around Asteroids: Negative Results | work = Abstracts of the Lunar and Planetary Science Conference | volume = 19 | pages = 405–406 |date=March 1988 | bibcode = 1988LPI....19..405G | postscript= .}} 4. ^1 {{Citation | title=Radar-Detected Asteroids and Comets | publisher=NASA/JPL Asteroid Radar Research | url=http://echo.jpl.nasa.gov/asteroids/ | accessdate=2011-10-30 | postscript= .}} 5. ^1 {{cite web |url=http://www.psi.edu/pds/archive/astdata04/simps04/diamalb.tab |archive-url=https://archive.is/20060623213811/http://www.psi.edu/pds/archive/astdata04/simps04/diamalb.tab |dead-url=yes |archive-date=2006-06-23 |title=Asteroid Data Archive |accessdate=2008-11-03 |publisher=Planetary Science Institute |df= }} 6. ^1 {{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 | accessdate= 2008-11-03 | publisher=AstroSurf | archiveurl=https://web.archive.org/web/20051127063200/http://www.astrosurf.com/aude-old/map_files/AstVarMAP01-2003.htm | archivedate=2005-11-27}} 7. ^1 {{cite book | first1=Donald H. | last1=Menzel | first2=Jay M. | last2=Pasachoff | year=1983 | title=A Field Guide to the Stars and Planets | edition=2nd | publisher=Houghton Mifflin | page=391 | location=Boston, MA | isbn=0-395-34835-8}} 8. ^1 2 3 {{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}} 9. ^1 {{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 |accessdate = 2008-11-26 |bibcode = 2005Icar..173..409S |display-authors = etal |deadurl = yes |archiveurl = https://web.archive.org/web/20120310150819/http://scripts.mit.edu/~paleomag/articles/Storrs_Weiss_2005_Icarus.pdf |archivedate = 2012-03-10 |df = }} 10. ^1 2 {{cite journal |last=Storrs |first=Alex |author2=Weiss |author3=Zellner |author4=Burlsen |title=Imaging Observations of Asteroids with Hubble Space Telescope |journal=Icarus |volume=137 |issue=2 |pages=260–268 |year=1999 |doi=10.1006/icar.1999.6047 |url=http://web.media.mit.edu/~win/hstpub.pdf |accessdate=2008-11-03 |bibcode=1999Icar..137..260S |archiveurl=https://web.archive.org/web/20081030022816/http://web.media.mit.edu/~win/hstpub.pdf |archivedate=30 October 2008 |deadurl=yes |display-authors=etal |df= }} }} External links
7 : Background asteroids|Discoveries by John Hind|Minor planets named from Greek mythology|Named minor planets|S-type asteroids (Tholen)|S-type asteroids (SMASS)|Astronomical objects discovered in 1852 |
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