Editing Megaclite (section)

{{Short description|Moon of Jupiter}}
{{Use dmy dates|date=November 2020}}
{{Infobox planet
 | name            = Megaclite
 | image           = Megaclite-Jewitt-CFHT-annotated.gif
 | image_scale      =
 | caption         = Megaclite imaged by the [[Canada-France-Hawaii Telescope]] in December 2001
 | pronounced      = {{IPAc-en|m|ɛ|ɡ|ə|ˈ|k|l|aɪ|t|iː}}
 | adjective       = Megaclitean {{IPAc-en|ˌ|m|ɛ|ɡ|ə|k|l|ᵻ|ˈ|t|iː|ə|n}}
 | named_after     = [[Megaclite (mythology)|Μεγακλειτή]] ''Megaclītē''
 | mpc_name        = Jupiter XIX
 | alt_names       = S/2000 J 8
 | discovery_ref   = &thinsp;<ref name="MPEC-2001-A29"/>
 | discoverer      = [[Scott S. Sheppard]]<br/>[[David C. Jewitt]]<br/>[[Yanga R. Fernandez]]<br/>Eugene A. Magnier
 | discovery_site  = [[Mauna Kea Observatory]]
 | discovered      = 25 November 2000
 | earliest_precovery_date = 
 | satellite_of    = [[Jupiter]]
 | group           = [[Pasiphae group]]
 | orbit_ref       = &thinsp;<ref name="MPC115890"/>
 | epoch           = 27 April 2019 ([[Julian day|JD]] 2458600.5)
 | observation_arc = 16.26 [[Julian year (astronomy)|yr]] (5,938 days)
 | semimajor       = {{cvt|0.1586666|AU|km|lk=in}}
 | eccentricity    = 0.4102170
 | period          = –747.09 d
 | mean_anomaly    = 269.64681[[Degree (angle)|°]]
 | mean_motion     = {{Deg2DMS|0.48187013|sup=ms}} / day
 | inclination     = 143.20224° (to [[ecliptic]])
 | asc_node        = 356.52408°
 | arg_peri        = 8.71854°
 | physical_ref    = <ref name="jpl-phys"/>
 | mean_diameter   = ≈&thinsp;6 km
 | mass            = 
 | density         = <!-- assumed density of 2.6 g/cm3 from JPL -->
 | surface_grav    = 
 | escape_velocity = 
 | rotation        = 
 | albedo          = 0.04 (assumed)
 | magnitude       = 21.7<ref name="SheppardMoons"/>
 | abs_magnitude   = 15.0<ref name="MPC115890"/>
}}

'''Megaclite''' {{IPAc-en|m|ɛ|ɡ|ə|ˈ|k|l|aɪ|t|iː}}, also known as '''{{nowrap|Jupiter XIX}}''', is a [[natural satellite]] of [[Jupiter]]. It was discovered by a team of astronomers from the [[University of Hawaii]] led by [[Scott S. Sheppard]] in 2000, and given the temporary designation '''{{nowrap|S/2000 J 8}}'''.<ref>[http://cbat.eps.harvard.edu/iauc/07500/07555.html IAUC 7555: ''Satellites of Jupiter''] {{webarchive|url=https://web.archive.org/web/20020916000558/http://cfa-www.harvard.edu/iauc/07500/07555.html |date=2002-09-16 }} 2001 January 5 (discovery)</ref><ref name="MPEC-2001-A29">[https://minorplanetcenter.net//iau/mpec/K01/K01A29.html MPEC 2001-A29: ''S/2000 J 7, S/2000 J 8, S/2000 J 9, S/2000 J 10, S/2000 J 11''] 2001 January 15 (discovery and ephemeris)</ref><ref>[https://www.minorplanetcenter.net/mpec/K01/K01T59.html MPEC 2001-T59: ''S/2000 J 8, S/2000 J 9, S/2000 J 10''] 2001 October 15 (revised ephemeris)</ref>

Megaclite is about 6 kilometres in diameter, and orbits Jupiter at an average distance of 24,687,000 kilometers in 747.09 days, at an [[inclination]] of 150° to the [[ecliptic]] (148° to Jupiter's equator), in a [[retrograde motion|retrograde]] direction and with an [[eccentricity (orbit)|eccentricity]] of 0.308.

It was named in October 2002 after [[Megaclite (mythology)|Megaclite]], mother by [[Zeus]] (Jupiter) of [[Thebe (Greek myth)|Thebe]] and [[Locrus]] in [[Greek mythology]]. It was initially erroneously named '''Magaclite''', which was corrected in November 2002.<ref>[http://www.cbat.eps.harvard.edu/iauc/07900/07998.html IAUC 7998: Satellites of Jupiter] 2002 October 22 (naming the moon "Magaclite")</ref><ref>[http://www.cbat.eps.harvard.edu/iauc/08000/08023.html IAUC 8023: Satellites of Jupiter] 2002 November 29 (correcting the name)</ref> Despite this correction, some earlier research still referred to the moon as Magaclite.<ref name="Grav2003"></ref>

It belongs to the [[Pasiphae group]], irregular retrograde moons orbiting Jupiter at distances ranging between 22.8 and 24.7 [[Orders_of_magnitude_(length)#1_gigametre|Gm]], and with [[inclination]]s ranging between 144.5° and 158.3°. However, while Pasiphae belongs to the grey color class (V=17.22 B−V=0.74, V−R=0.38), Megaclite falls under the light red color class (V=22.07 B−V=0.94, V−R=0.41), similarly to [[Callirrhoe (moon)|Callirrhoe]] and [[Sinope (moon)|Sinope]].<ref name="Grav2003">{{cite journal|last=Grav|first=Tommy|title=Photometric survey of the irregular satellites|journal=Icarus|volume=166|issue=1|date=2003|pages=33–45|doi=10.1016/j.icarus.2003.07.005|author2=Holman, M. J.|author3= Gladman, B. J.|author4= Aksnes, K.|bibcode=2003Icar..166...33G|arxiv = astro-ph/0301016 |s2cid=7793999}}</ref>

{{multiple image
| align = left
| direction = vertical
| width = 
| header = Animation of Megaclite's orbit from 1900 to 2100
| image1 = Animation of Megaclite around Jupiter - Polar view.gif
| caption1 = Polar view
| image2 = Animation of Megaclite around Jupiter - Equatorial view.gif
| caption2 = Equatorial view
| footer ={{legend2| Lime | Jupiter}}{{·}}{{legend2| magenta|Megaclite }}
}}
{{clear}}