编辑“︁S/2019 S 1”︁

{{Infobox planet
| name = S/2019 S 1
| alt_names = 
| discovery_ref = <ref name="announcement">{{cite web |title=MPEC 2021-W14 : S/2019 S 1 |url=https://www.minorplanetcenter.net/mpec/K21/K21W14.html |website=minorplanetcenter.net |access-date=16 November 2021 |archive-date=2021-12-21 |archive-url=https://web.archive.org/web/20211221182820/https://www.minorplanetcenter.net/mpec/K21/K21W14.html |dead-url=no }}</ref>
| discoverer = 爱德华·阿什顿
| discovered = 2019年（于2021年宣布）
| orbit_ref = &thinsp;<ref name="announcement"/>
| semimajor = {{val|11221100|u=km}}
| inclination = 44.4°
| eccentricity = 0.623
| period = 443.78天
| satellite_of = [[土星]]
| group = [[Saturn's Inuit group of satellites|Inuit group]]<ref name="DP53"/><ref name="Ashton2022"/>
| magnitude = 25.1
| mean_diameter = {{val|5|2.5|1.5|u=km}}
}}
'''S/2019 S 1'''是[[土星]]的一颗天然[[卫星]]。其发现于2021年11月16日由爱德华·阿什顿、布雷特·格拉德曼、让-马克·佩蒂和迈克·亚历山德森通过加拿大-法国-夏威夷望远镜在2019年7月1日至2021年6月14日期间的观测结果宣布<ref name="announcement"/>。

S/2019 S 1的直径约为5公里，以顺行的方式绕土星公转，平均距离为11.2百万公里，公转周期为443.78天，轨道倾角为44°，轨道离心率为0.623。它属于因纽特群顺行不规则卫星，并且是土星最内侧的不规则卫星之一<ref name="DP53"/>。它可能是[[土卫二十四|土卫二十四（基维尤克）]]和[[土卫二十二|土卫二十二（伊耶拉克）]]的碰撞碎片，这两颗卫星具有非常相似的轨道要素<ref name=Denk>[https://tilmanndenk.de/outersaturnianmoons/s2019_s1/ S/2019 S 1] {{Wayback|url=https://tilmanndenk.de/outersaturnianmoons/s2019_s1/ |date=20230106185058 }}: Tilmann Denk</ref>。

这颗卫星的离心轨道每千年会多次使其靠近[[土卫八]]，最近距离可达1.5百万公里<ref name=Denk/>。

==参考资料==
{{reflist|refs=

<ref name="DP53">{{cite conference
 |first1       = Edward
 |last1        = Ashton
 |first2       = Brett
 |last2        = Gladman
 |first3       = Matthew
 |last3        = Beaudoin
 |first4       = Mike
 |last4        = Alexandersen
 |first5       = Jean-Marc
 |last5        = Petit
 |title        = Detection biases favour retrograde over direct irregular moons
 |url          = https://submissions.mirasmart.com/DPS53/ViewSubmissionFile.aspx?sbmID=1140&mode=html&validate=false
 |conference   = 53rd Annual DPS Meeting
 |publisher    = American Astronomical Society
 |id           = 308.09
 |date         = October 2021
 |accessdate   = 17 November 2021
 |archive-date = 2023-01-10
 |archive-url  = https://web.archive.org/web/20230110125031/https://submissions.mirasmart.com/DPS53/ViewSubmissionFile.aspx?sbmID=1140&mode=html&validate=false
 |dead-url     = no
}}</ref>

<ref name="Ashton2022">{{cite journal
  |first1 = Edward |last1 = Ashton
  |first2 = Brett |last2 = Gladman
  |first3 = Matthew |last3 = Beaudoin
  |first4 = Mike |last4 = Alexandersen
  |first5 = Jean-Marc |last5 = Petit
  |title      = Discovery of the Closest Saturnian Irregular Moon, S/2019 S 1, and Implications for the Direct/Retrograde Satellite Ratio
  |journal    = The Astronomical Journal
  |date       = May 2022
  |volume     = 3
  |issue      = 5
  |page       = 5
  |id         = 107
  |doi        = 10.3847/PSJ/ac64a2
  |bibcode    = 2022PSJ.....3..107A
  |s2cid      = 248771843|doi-access= free
  }}</ref>

}}

{{土星的卫星}}

[[Category:土星的卫星]]
[[Category:2021年发现的卫星]]