imported>InternetArchiveBot：补救7个来源，并将0个来源标记为失效。) #IABot (v2.0.9.5

2023-06-14T08:46:34Z

补救7个来源，并将0个来源标记为失效。) #IABot (v2.0.9.5

新页面

{{Infobox planet
| name = S/2003 J 23
| image = S2003j23ccircle.gif
| image_size = 250
| caption = 2003年2月，[[加法夏望遠鏡]]拍攝的S/2003 J 23的發現影像
| discovery_ref =  <ref name="MPEC-2004-B81"/>
| discoverer = [[史考特·雪柏]]等人
| discovery_site = [[毛納基山天文台]]
| discovered = 6 February 2003年2月6日（成像）<br/>January 2004年1月（宣布）
| orbit_ref =  <ref name="MPEC-2021-B136"/>
| epoch = 17 December 2020年12月17日（[[儒略日|JD]] 2459200.5）
| observation_arc = 14.22 [[儒略年|yr]]（5,193 [[日|d]]）
| semimajor = {{cvt|0.1649635|AU|km|lk=in}}
| eccentricity = 0.3207567
| period = –2.17 yr（–792.00 d）
| mean_anomaly = 257.08447[[度|°]]
| mean_motion = {{Deg2DMS|0.45454465|sup=ms}} / day
| inclination = 146.15464° {{small|（對[[黃道]]）}}
| asc_node = 142.40639°
| arg_peri = 295.73090°
| satellite_of = [[木星]]
| group = [[帕西法厄群]]
| mean_diameter = ≈{{val|2|u=km}}<ref name="SheppardMoons"/>
| rotation =
| albedo = 0.04 {{small|（假定）}}<ref name="SheppardMoons"/>
| magnitude = 23.6<ref name="SheppardMoons"/>
| abs_magnitude = 16.6<ref name="MPEC-2021-B136"/>
}}

'''{{nowrap|S/2003 J 23}}'''是[[木星]]的一顆外層[[天然衛星]]。它是[[夏威夷大學]][[史考特·雪柏]]等人於2004年從2003年的影像中發現<ref>[http://www.cbat.eps.harvard.edu/iauc/08200/08281.html IAUC 8281: ''S/2003 J 23''] {{Wayback|url=http://www.cbat.eps.harvard.edu/iauc/08200/08281.html |date=20120327152759 }} 2004 February 4 (discovery)</ref><ref name="MPEC-2004-B81">[https://www.minorplanetcenter.net/mpec/K04/K04B81.html MPEC 2004-B81: ''S/2003 J 23''] {{Wayback|url=https://www.minorplanetcenter.net/mpec/K04/K04B81.html |date=20160124061753 }} 2004 January 31 (discovery and ephemeris)</ref>。

{{nowrap|S/2003 J 23}}的直徑約2公里，在約792天的週期，以24,700,000公里的平均距離繞木星運行，與[[黃道]]成146°的[[軌道傾角|傾斜度]]，沿[[順行和逆行|逆行]]方向運行，[[軌道離心率|離心率]]為0.321。

它屬於[[帕西法厄群]]，此群的衛星是繞木星運行的不規則逆行衛星，距離在22.8到24.1 Gm之間，[[軌道傾角|傾角]]範圍在144.5°到158.3°之間。

[[File:2003 J 23 discovery.gif|thumb|left| 2003年2月6日發現影像的模擬動畫。]]
[[File:2003 J 23 CFHT 2017-02-24.gif|thumb|left| CFHT（加法夏天文台）於2017年2月24日拍攝，再發現S/2003 J 23的影像。]]

這顆衛星曾被認為是[[迷蹤小行星|失落的]]天體<ref>{{cite web |url=http://www.skyandtelescope.com/astronomy-news/outer-planet-moons-found-and-lost/ |title=Outer-Planet Moons Found — and Lost |last=Beatty |first=Kelly |date=4 April 2012 |website=www.skyandtelescope.com |publisher=Sky & Telescope |access-date=27 June 2017 |archive-date=2017-06-07 |archive-url=https://wayback.archive-it.org/all/20170607043231/http://www.skyandtelescope.com/astronomy-news/outer-planet-moons-found-and-lost/ |dead-url=no }}</ref><ref name=Jacobson>{{cite journal |last1=Brozović |first1=Marina |last2=Jacobson |first2=Robert A. |date=9 March 2017 |title=The Orbits of Jupiter's Irregular Satellites |journal=The Astronomical Journal |volume=153 |issue=4 |pages=147 |doi=10.3847/1538-3881/aa5e4d|bibcode = 2017AJ....153..147B |doi-access=free }}</ref><ref>{{cite journal |last1=Jacobson |first1=B. |last2=Brozović |first2=M. |first3=B. |last3=Gladman |first4=M. |last4=Alexandersen |first5=P. D. |last5=Nicholson |first6=C. |last6=Veillet |date=28 September 2012 |title=Irregular Satellites of the Outer Planets: Orbital Uncertainties and Astrometric Recoveries in 2009–2011 |journal=The Astronomical Journal |volume=144 |issue=5 |pages=132 |doi=10.1088/0004-6256/144/5/132 |bibcode = 2012AJ....144..132J |s2cid=123117568 }}</ref><ref>{{cite web |url=http://home.dtm.ciw.edu/users/sheppard/satellites/jup2017.html |title=New Moons of Jupiter Announced in 2017 |last=Sheppard |first=Scott S. |date=2017 |website=home.dtm.ciw.edu |access-date=27 June 2017 |quote=We likely have all of the lost moons in our new observations from 2017, but to link them back to the remaining lost 2003 objects requires more observations a year later to confirm the linkages, which will not happen until early 2018. ... There are likely a few more new moons as well in our 2017 observations, but we need to reobserve them in 2018 to determine which of the discoveries are new and which are lost 2003 moons. |archive-date=2017-06-10 |archive-url=https://web.archive.org/web/20170610075918/http://home.dtm.ciw.edu/users/sheppard/satellites/jup2017.html |dead-url=no }}</ref>。直到2020年末，雪柏和業餘天文學家凱利才分別再找到它<ref>{{cite web |url=https://skyandtelescope.org/astronomy-news/amateur-astronomer-finds-lost-moons-of-jupiter/ |title=Amateur Astronomer Finds "Lost" Moons of Jupiter |last=Hecht |first=Jeff |date=2021-01-11 |website=www.skyandtelescope.com |publisher=Sky & Telescope |access-date=2021-01-11 |archive-date=2021-11-09 |archive-url=https://web.archive.org/web/20211109013450/https://skyandtelescope.org/astronomy-news/amateur-astronomer-finds-lost-moons-of-jupiter/ |dead-url=no }}</ref>。2021 1月13日[[小行星中心]]在2011年1月13日宣佈這顆再度發現這顆衛星的，而雪柏隨後於2021年1月27日公佈了他再發現的觀測結果<ref name="MPEC-2021-A168"/><ref name="MPEC-2021-B136"/>。

{{clear|left}}

== 參考資料 ==
{{reflist|refs=

<ref name="SheppardMoons">{{Cite web |url=https://sites.google.com/carnegiescience.edu/sheppard/moons/jupitermoons |title=S.S. Sheppard (2019), Moons of Jupiter, ''Carnegie Science'', on line |access-date=2023-04-15 |archive-date=2019-04-24 |archive-url=https://web.archive.org/web/20190424041910/https://sites.google.com/carnegiescience.edu/sheppard/moons/jupitermoons |dead-url=no }}</ref>

<ref name="MPEC-2021-A168">{{cite web
|title = MPEC 2021-A168 : S/2003 J 23
|url = https://minorplanetcenter.net/mpec/K21/K21AG8.html
|work = Minor Planet Electronic Circular
|publisher = Minor Planet Center
|date = 13 January 2021
|accessdate = 13 January 2021}}</ref>

<ref name="MPEC-2021-B136">{{cite web
|title = MPEC 2021-B136 : S/2003 J 23
|url = https://minorplanetcenter.net/mpec/K21/K21BD6.html
|work = Minor Planet Electronic Circular
|publisher = Minor Planet Center
|date = 27 January 2021
|accessdate = 27 January 2021
|archive-date = 2022-11-17
|archive-url = https://web.archive.org/web/20221117220706/https://minorplanetcenter.net//mpec/K21/K21BD6.html
|dead-url = no
}}</ref>

}}

{{木星的衛星}}

{{DEFAULTSORT:S 2003 J 23}}
[[Category:帕西法爾衛星群]]
[[Category:木星的衛星]]
[[Category:不規則衛星]]
[[Category: 2004年發現的天體]]
[[Category:史考特·雪柏發現的天體]]
[[Category:逆行軌道的衛星]]

S/2003 J 23 - 版本历史

imported>InternetArchiveBot：​补救7个来源，并将0个来源标记为失效。) #IABot (v2.0.9.5

imported>InternetArchiveBot：补救7个来源，并将0个来源标记为失效。) #IABot (v2.0.9.5