imported>Copernicium291: Update caption to match image

2025-10-23T01:33:04Z

Update caption to match image

New page

{{Short description|Main-belt asteroid}}
{{Use dmy dates|date=October 2019}}
{{Infobox planet
| minorplanet = yes
| background = #D6D6D6
| image = 58 Elpis.png
| caption = A three-dimensional model of 59 Elpis based on its [[light curve]]
| name = 59 Elpis
| discoverer = [[Jean Chacornac]]
| discovered = September 12, 1860
| mpc_name = (59) Elpis
| alt_names =
| named_after = [[Elpis (mythology)|Elpis]]
| pronounced = {{IPAc-en|ˈ|ɛ|l|p|ᵻ|s}}<ref>''The Century Dictionary and Cyclopedia'', under "Schwartz, Madame von"</ref>
| adjective = Elpidian {{IPAc-en|ɛ|l|ˈ|p|ɪ|d|i|ə|n}}<ref>E.g.''American ecclesiastical review'', v. 21 (1899)</ref>
| mp_category = [[Main belt]]
| epoch = December 31, 2006 ([[Julian day|JD]] 2454100.5)
| semimajor = 406.216 Gm (2.715 [[Astronomical unit|AU]])
| perihelion = 358.808 Gm (2.398 AU)
| aphelion = 453.624 Gm (3.032 AU)
| eccentricity = 0.117
| period = {{nowrap|1634.355 d (4.47 [[Julian year (astronomy)|a]])}}
| inclination = 8.631°
| asc_node = 170.209°
| arg_peri = 210.901°
| mean_anomaly = 246.848°
| dimensions = {{Val|164.8|6.0|u=km}}<ref name=jpldata>{{cite web
|type=2011-09-01 last obs
|title=JPL Small-Body Database Browser: 59 Elpis
|url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=59
|publisher=[[Jet Propulsion Laboratory]]
|access-date=2012-01-26}}</ref>
| mass = {{val|3.00|0.50|e=18|ul=kg}}<ref name="Carry2012"/>
| density = {{Val|1.30|0.26|u=g/cm<sup>3</sup>}}<ref name="Carry2012"/>
| rotation = 13.69 h<ref name=jpldata/>
| spectral_type = [[C-type asteroid|CP]]/[[B-type asteroid|B]]<ref name=jpldata/>
| abs_magnitude = 7.93<ref name=jpldata/>
| albedo = 0.044<ref name=jpldata/><ref>[http://www.psi.edu/pds/resource/albedo.html Asteroid Data Sets] {{webarchive|url=https://web.archive.org/web/20091217104722/http://www.psi.edu/pds/resource/albedo.html |date=2009-12-17 }}</ref>
}}

'''59 Elpis''' is a large [[main belt]] [[asteroid]] that orbits the Sun with a [[orbital period|period]] of 4.47 years. It is a [[C-type asteroid]], meaning that it is very dark and [[carbonate|carbonaceous]] in composition. In the Tholen scheme it has a classification of CP, while Bus and Binzen class it as type B.<ref name=Rivkin2003/>

Elpis was discovered by [[Jean Chacornac]] from [[Paris]], on September 12, 1860. It was Chacornac's sixth and final asteroid discovery.

A controversy arose over the naming of Elpis. [[Urbain Le Verrier]], director of the [[Paris Observatory]], at first refused to allow Chacornac to name the object, because Leverrier was promoting a plan to reorganize asteroid nomenclature by naming them after their discoverers, rather than mythological figures. A protest arose among astronomers. At the [[Vienna Observatory]], [[Edmund Weiss]], who had been studying the asteroid, asked the observatory's director, [[Karl L. Littrow]], to name it. Littrow chose [[Elpis (mythology)|Elpis]], a Greek personification of [[hope]], in reference to the favorable political conditions in [[Europe]] at the time. In 1862, Leverrier permitted Chacornac to choose a name, and he selected "Olympia" at the suggestion of [[John Russell Hind]].<ref>{{cite book|title=Appletons' annual cyclopaedia and register of important events of the year: 1862|year=1863|publisher=[[D. Appleton & Company]]|location=New York|page=173|url=https://archive.org/stream/1862appletonsan02newyuoft#page/n180/mode/1up}}</ref> However, Elpis is the name that stuck.<ref>{{cite book|last=Schmadel|first=Lutz D.|title=Dictionary of Minor Planet Names|url=https://books.google.com/books?id=KWrB1jPCa8AC&pg=PA20|year=2003|publisher=Springer Science & Business Media|isbn=978-3-540-00238-3|pages=20–1}}</ref>

Elpis has been studied by [[radar astronomy|radar]].<ref name="detected">{{cite web
|title=Radar-Detected Asteroids and Comets
|publisher=NASA/JPL Asteroid Radar Research
|url=http://echo.jpl.nasa.gov/asteroids/
|access-date=2012-01-26}}</ref>

==References==
{{Reflist|refs=

<ref name=Rivkin2003>{{citation
| title=Hydrogen concentrations on C-class asteroids derived from remote sensing
| display-authors=1 | last1=Rivkin | first1=A. S.
| last2=Davies | first2=J. K. | last3=Johnson | first3=J. R.
| last4=Ellison | first4=S. L. | last5=Trilling | first5=D. E.
| last6=Brown | first6=R. H. | last7=Lebofsky | first7=L. A.
| journal=Meteoritics & Planetary Science | postscript=.
| volume=38 | issue=9 | pages=1383–1398 | date=September 2003
| doi=10.1111/j.1945-5100.2003.tb00321.x | bibcode=2003M&PS...38.1383R }}</ref>

<ref name="Carry2012">{{Citation
| first1 = B.
| last1 = Carry
| title = Density of asteroids
| journal = Planetary and Space Science
| volume = 73
| pages = 98–118
|date=December 2012
| issue = 1
| doi = 10.1016/j.pss.2012.03.009
| bibcode = 2012P&SS...73...98C
| postscript= .
|arxiv = 1203.4336 }} See Table 1.</ref>

}} 

== External links ==
* {{AstDys|59}}
* {{JPL small body}}

{{Minor planets navigator |58 Concordia |number=59 |60 Echo}}
{{Small Solar System bodies}}
{{Authority control}}

{{DEFAULTSORT:000059}}
[[Category:Background asteroids]]
[[Category:Discoveries by Jean Chacornac|Elpis]]
[[Category:Named minor planets|Elpis]]
[[Category:CP-type asteroids (Tholen)]]
[[Category:B-type asteroids (SMASS)]]
[[Category:Astronomical objects discovered in 1860|18600912]]
[[Category:Hope]]

{{C-beltasteroid-stub}}

59 Elpis - Revision history

imported>Copernicium291: Update caption to match image