Editing 287 Nephthys

{{Short description|Main-belt asteroid}}
{{Use dmy dates|date=October 2019}}
{{Infobox planet
 | minorplanet=yes
 | name=287 Nephthys
 | background      = #D6D6D6
 | image           = 000287-asteroid shape model (287) Nephthys.png
 | image_scale      =
 | caption         = Modelled shape of ''Nephthys'' from its [[lightcurve]]
 | discoverer=[[Christian Heinrich Friedrich Peters|C. H. F. Peters]]
 | discovered=25 August 1889
 | mpc_name=(287) Nephthys
 | pronounced={{IPAc-en|'|n|ɛ|f|θ|ᵻ|s}}<ref>Noah Webster (1884) ''A Practical Dictionary of the English Language''</ref>
 | alt_names=A889 PB
 | named_after=[[Nephthys]]
 | mp_category=[[Asteroid belt|Main belt]]
 | epoch=31 July 2016 ([[Julian day|JD]] 2457600.5)
 | orbit_ref=<ref name="JPL"/>
 | semimajor={{Convert|2.3531|AU|Gm|abbr=on}}
 | perihelion={{Convert|2.29814|AU|Gm|abbr=on}}
 | time_periastron = 2022-Jul-13
 | aphelion={{Convert|2.4080|AU|Gm|abbr=on|lk=on}}
 | eccentricity=0.023344
 | period=3.61 [[Julian year (astronomy)|yr]] (1318.4 [[Julian year (astronomy)|d]])
 | inclination=10.034°
 | asc_node=142.381°
 | arg_peri=121.02°
 | mean_anomaly=125.74[[Degree (angle)|°]]
 | dimensions={{val|67.60|1.4|ul=km}}
 | mass=
 | density=
 | rotation={{Convert|7.605|h|d|abbr=on|lk=on}}
 | spectral_type=[[S-type asteroid|S]]
 | abs_magnitude=8.30,<ref name="JPL"/> 8.26<ref name="Warner2007"/>
 | albedo={{val|0.1851|0.008}}
 | single_temperature=
 | mean_motion={{Deg2DMS|0.27306|sup=ms}} / day
 | observation_arc=119.35 yr (43594 d)
 | uncertainty=0
}}

'''287 Nephthys''' is a large [[Asteroid belt|Main belt]] [[asteroid]] that was discovered by German-American astronomer [[Christian Heinrich Friedrich Peters|C. H. F. Peters]] on August 25, 1889, in [[Clinton, Oneida County, New York|Clinton, New York]] and named after the goddess, [[Nephthys]] in [[Egyptian mythology]].<ref name="Schmadel2012"/> It is classified as an [[S-type asteroid]].

==References==
{{Reflist|refs=

<ref name="Warner2007">{{Citation
 | last1     = Warner
 | first1    = Brian D.
 | title     = Initial Results of a Dedicated H-G Project
 | work      = The Minor Planet Bulletin
 | volume    = 34
 | pages     = 113–119
 |date=December 2007
 | bibcode   = 2007MPBu...34..113W
 | postscript= .}}</ref>

<ref name="JPL">{{Citation
 | first1    = Donald K.
 | last1     = Yeomans
 | title     = 287 Nephthys
 | work      = JPL Small-Body Database Browser
 | publisher = [[NASA Jet Propulsion Laboratory]]
 | url       = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=287
 | accessdate= 11 May 2016
 | postscript= .}}</ref>

<ref name="Schmadel2012">{{Citation
 | first1    = Lutz D.
 | last1     = Schmadel
 | title     = Dictionary of Minor Planet Names
 | publisher = Springer
 | page      = 38
 | year      = 2012
 | isbn      = 3642297188| url= https://cds.cern.ch/record/1339660/files/978-3-540-29925-7_BookTOC.pdf
 }}</ref>

}} <!-- end of reflist -->

==External links==
* {{AstDys|287}}
* {{JPL small body}}

{{Minor planets navigator |286 Iclea |number=287 |288 Glauke}}
{{Small Solar System bodies}}
{{Authority control}}

{{DEFAULTSORT:000287}}
[[Category:Background asteroids]]
[[Category:Discoveries by Christian Peters|Nephthys]]
[[Category:Named minor planets|Nephthys]]
[[Category:S-type asteroids (Tholen)]]
[[Category:Astronomical objects discovered in 1889|18890825]]
[[Category:Nephthys]]
{{S-beltasteroid-stub}}