S/2003 J 23

**S/2003 J 23**
	2003年ねん2月がつ，加法かほう夏なつ望遠鏡ぼうえんきょう拍はく攝と的てきS/2003 J 23的てき發現はつげん影像えいぞう
发现
發現はつげん者しゃ	史ふみ考こう特とく·雪せつ柏かしわ等とう人ひと
發現はつげん地ち	毛もう納おさむ基山きやま天文台てんもんだい
發現はつげん日び期き	6 February 2003年ねん2月がつ6日にち（成なり像ぞう）; January 2004年ねん1月がつ（宣布せんぷ）
軌道きどう參さん數すう
	曆こよみ元もと 17 December 2020年ねん12月17日にち（JD 2459200.5）
觀測かんそく弧こ	14.22 yr（5,193 d）
半はん長ちょう軸じく	0.1649635 AUえーゆー（24,678,190 km）
離はなれ心しん率りつ	0.3207567
軌道きどう週しゅう期き	–2.17 yr（–792.00 d）
平ひらた近きん點てん角かく	257.08447°
軌道きどう傾かたぶけ角かく	146.15464° （對たい黃道こうどう）
升ます交點こうてん黃き經けい	142.40639°
近日きんじつ點てん參さん數すう	295.73090°
隸屬れいぞく天体てんたい	木星もくせい
物理ぶつり特徵とくちょう
反照はんしょう率りつ	0.04 （假定かてい）
視み星ほし等とう	23.6
絕對ぜったい星ほし等とう(H)	16.6

S/2003 J 23是これ木星もくせい的てき一いち顆外層そう天然てんねん衛星えいせい。它是夏なつ威たけし夷えびす大學だいがく史ふみ考こう特とく·雪せつ柏かしわ等とう人ひと於2004年ねん從したがえ2003年ねん的てき影像えいぞう中ちゅう發現はつげん^[4]^[1]。

S/2003 J 23的てき直徑ちょっけい約やく2公里くり，在ざい約やく792天てん的てき週しゅう期き，以24,700,000公里くり的てき平均へいきん距離きょり繞にょう木星もくせい運行うんこう，與あずか黃道こうどう成なり146°的てき傾斜けいしゃ度ど，沿逆行ぎゃっこう方向ほうこう運行うんこう，離はなれ心しん率りつ為ため0.321。

它屬於帕西法ほう厄やく群ぐん，此群的てき衛星えいせい是ぜ繞にょう木星もくせい運行うんこう的てき不規則ふきそく逆行ぎゃっこう衛星えいせい，距離きょり在ざい22.8到いた24.1 Gm之の間あいだ，傾かたぶけ角かく範圍はんい在ざい144.5°到いた158.3°之の間あいだ。

這顆衛星えいせい曾被認みとめ為ため是ぜ失しつ落的天體てんたい^[5]^[6]^[7]^[8]。直ちょく到いた2020年ねん末まつ，雪ゆき柏かしわ和かず業ぎょう餘あまり天文學てんもんがく家か凱利才ざい分別ふんべつ再さい找到它^[9]。2021 1月がつ13日にち小しょう行くだり星ぼし中心ちゅうしん在ざい2011年ねん1月がつ13日にち宣せん佈這顆再度さいど發現はつげん這顆衛星えいせい的てき，而雪柏かしわ隨ずい後ご於2021年ねん1月がつ27日にち公おおやけ佈了他た再さい發現はつげん的てき觀測かんそく結果けっか^[10]^[2]。

參考さんこう資料しりょう[编辑]

^ ^1.0 ^1.1 MPEC 2004-B81: S/2003 J 23 （页面存そん档备份，存そん于互联网档案あん馆） 2004 January 31 (discovery and ephemeris)
^ ^2.0 ^2.1 ^2.2 MPEC 2021-B136 : S/2003 J 23. Minor Planet Electronic Circular. Minor Planet Center. 27 January 2021 [27 January 2021]. （原始げんし内容ないよう存そん档于2022-11-17）.
^ ^3.0 ^3.1 S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line. [2023-04-15]. （原始げんし内容ないよう存そん档于2019-04-24）.
^ IAUC 8281: S/2003 J 23 （页面存そん档备份，存そん于互联网档案あん馆） 2004 February 4 (discovery)
^ Beatty, Kelly. Outer-Planet Moons Found — and Lost. www.skyandtelescope.com. Sky & Telescope. 4 April 2012 [27 June 2017]. （原始げんし内容ないよう存そん档于2017-06-07）.
^ Brozović, Marina; Jacobson, Robert A. The Orbits of Jupiter's Irregular Satellites. The Astronomical Journal. 9 March 2017, 153 (4): 147. Bibcode:2017AJ....153..147B. doi:10.3847/1538-3881/aa5e4d .
^ Jacobson, B.; Brozović, M.; Gladman, B.; Alexandersen, M.; Nicholson, P. D.; Veillet, C. Irregular Satellites of the Outer Planets: Orbital Uncertainties and Astrometric Recoveries in 2009–2011. The Astronomical Journal. 28 September 2012, 144 (5): 132. Bibcode:2012AJ....144..132J. S2CID 123117568. doi:10.1088/0004-6256/144/5/132.
^ Sheppard, Scott S. New Moons of Jupiter Announced in 2017. home.dtm.ciw.edu. 2017 [27 June 2017]. （原始げんし内容ないよう存そん档于2017-06-10）. 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.
^ Hecht, Jeff. Amateur Astronomer Finds "Lost" Moons of Jupiter. www.skyandtelescope.com. Sky & Telescope. 2021-01-11 [2021-01-11]. （原始げんし内容ないよう存そん档于2021-11-09）.
^ MPEC 2021-A168 : S/2003 J 23. Minor Planet Electronic Circular. Minor Planet Center. 13 January 2021 [13 January 2021].

[MPEC-2004-B81-1] 1.0 ^1.1 MPEC 2004-B81: S/2003 J 23 （页面存そん档备份，存そん于互联网档案あん馆） 2004 January 31 (discovery and ephemeris)

[MPEC-2021-B136-2] 2.0 ^2.1 ^2.2 MPEC 2021-B136 : S/2003 J 23. Minor Planet Electronic Circular. Minor Planet Center. 27 January 2021 [27 January 2021]. （原始げんし内容ないよう存そん档于2022-11-17）.

[SheppardMoons-3] 3.0 ^3.1 S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line. [2023-04-15]. （原始げんし内容ないよう存そん档于2019-04-24）.

[4] IAUC 8281: S/2003 J 23 （页面存そん档备份，存そん于互联网档案あん馆） 2004 February 4 (discovery)

[5] Beatty, Kelly. Outer-Planet Moons Found — and Lost. www.skyandtelescope.com. Sky & Telescope. 4 April 2012 [27 June 2017]. （原始げんし内容ないよう存そん档于2017-06-07）.

[Jacobson-6] Brozović, Marina; Jacobson, Robert A. The Orbits of Jupiter's Irregular Satellites. The Astronomical Journal. 9 March 2017, 153 (4): 147. Bibcode:2017AJ....153..147B. doi:10.3847/1538-3881/aa5e4d .

[7] Jacobson, B.; Brozović, M.; Gladman, B.; Alexandersen, M.; Nicholson, P. D.; Veillet, C. Irregular Satellites of the Outer Planets: Orbital Uncertainties and Astrometric Recoveries in 2009–2011. The Astronomical Journal. 28 September 2012, 144 (5): 132. Bibcode:2012AJ....144..132J. S2CID 123117568. doi:10.1088/0004-6256/144/5/132.

[8] Sheppard, Scott S. New Moons of Jupiter Announced in 2017. home.dtm.ciw.edu. 2017 [27 June 2017]. （原始げんし内容ないよう存そん档于2017-06-10）. 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.

[9] Hecht, Jeff. Amateur Astronomer Finds "Lost" Moons of Jupiter. www.skyandtelescope.com. Sky & Telescope. 2021-01-11 [2021-01-11]. （原始げんし内容ないよう存そん档于2021-11-09）.

[MPEC-2021-A168-10] MPEC 2021-A168 : S/2003 J 23. Minor Planet Electronic Circular. Minor Planet Center. 13 January 2021 [13 January 2021].

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