{{위키데이터 속성 추적}}
{{항성 정보 시작
| 이름 = 궁수자리 VX
| 로마자이름 = VX Sagittarii
}}
{{항성 정보 관측자료
| 역기점 = [[J2000.0]]
| 분점 = [[J2000.0]] ([[International Celestial Reference System|ICRS]])
| 별자리 = [[궁수자리]]
| 적경 = {{RA|18|08|04.04831}}<ref name=hipparcos/>
| 적위 = {{DEC|-22|13|26.6327}}<ref name=hipparcos/>
| 겉보기등급 = 6.5 - 14.0<ref name=gcvs/>
}}
{{항성 정보 특성
| 종류 = [[점근거성열|AGB]], ([[손-지트코프 천체|TŻO]] 가능성 존재)<ref name=tabernero/>
| 분류 = M4eIa - M10eIa<ref name=kiss/>
| 겉보기등급1통과대역 = U
| 겉보기등급1 = 11.72
| 겉보기등급2통과대역 = B
| 겉보기등급2 = 9.41
| 겉보기등급3통과대역 = V
| 겉보기등급3 = 6.52
| 겉보기등급4통과대역 = I
| 겉보기등급4 = 2.11
| 겉보기등급5통과대역 = J
| 겉보기등급5 = 1.23
| 겉보기등급6통과대역 = H
| 겉보기등급6 = 0.13
| 겉보기등급7통과대역 = K
| 겉보기등급7 = &minus;0.50
| 겉보기등급8통과대역 = L
| 겉보기등급8 = &minus;1.61
| r-i = <!--R-I 색지수-->
| v-r = <!--V-R 색지수-->
| b-v = <!--B-V 색지수-->
| u-b = <!--U-B 색지수-->
| j-h = <!--J-H 색지수-->
| j-k = <!--J-K 색지수-->
| 변광성 = [[준규칙 변광성|SRc]]<ref name=gcvs/>
}}
{{항성 정보 위치천문
 | 시선속도 = {{val|+6.47|3.37}}<ref name=xu2018/>
 | 적경고유운동 = {{val|+0.36|0.76}}<ref name=xu2018/>
 | 적위고유운동 = {{val|-2.92|0.78}}<ref name=xu2018/>
 | 연주시차 = 0.64
 | 시차오차 = 0.04
 | 연주시차각주 =<ref name=xu2018/>
 | 광년거리 =
 | 파섹거리 = 
 | 절대등급 =
 | 절대복사등급 =
 }}
{{항성 정보 상세
| 질량 = 12<ref name=chiavassa/>
| 반지름 = 1,356,<ref name=tabernero>{{저널 인용|arxiv=2011.09184|last1=Tabernero|first1=H. M.|last2=Dorda|first2=R.|last3=Negueruela|first3=I.|last4=Marfil|first4=E.|title=The nature of VX Sagitarii|journal=Astronomy & Astrophysics|year=2021|volume=646|pages=A98|doi=10.1051/0004-6361/202039236|s2cid=227013580}}</ref> {{nowrap|1,120과 1,550 사이<ref name=xu2018/>}}, {{nowrap|1,350–1,940 (맥동)<ref name=Lockwood/>}}
| 광도 = {{nowrap|{{val|195,000|62,000}}<ref name=xu2018/>}}, 110,000–190,000<ref name=Lockwood/>
| 기온 = 2,900<ref name=gh/> (최소 근방), {{nowrap|3,200-3,400 (최대 근방)<ref name=chiavassa/>}}, {{nowrap|2,400–3,300<ref name=Lockwood/>}}
}}
{{항성 정보 분류
| 이름 = [[아르겔란더 명명법|VX]]&nbsp;Sgr, [[히파르코스 (인공위성)|HIP]]&nbsp;88838, [[소천성표|BD]]&minus;22°4575, [[소천성표#확장|CD]]&minus;22°12589, [[헨리 드레이퍼 목록|HD]]&nbsp;165674, [[2MASS]]&nbsp;J18080404-2213266, [[AAVSO]]&nbsp;1802-22
}}
{{항성 정보 자료
| Simbad = VX+Sgr
}}
{{항성 정보 끝}}

''궁수자리 VX''는 [[궁수자리]] 방향으로 태양으로부터 1.5[[킬로파섹]] 이상 떨어진 곳에 위치한 [[점근거성열|점근거성]]으로 비정상적으로 큰 [[등급 (천문학)|등급]] 범위를 가지는 [[변광성|맥동 변광성]]이다. 이 별은 발견된 [[반지름순 항성 목록|가장 큰 별]] 중 하나로 반경은 1,350과 1,940 {{태양반경|link=y}} (940,000,000과 1.35×10<sup>9</sup> [[km]], 6.3 과 9.0 [[au]]) 사이에서 변하고 [[절대등급#복사등급|복사등급]] -8.6의 알려진 가장 광도가 높은 [[점근거성열|점근거성]]으로 이론적인 한계인 -8.0보다 더 밝다.<ref name=tabernero/>

== 관측 ==
[[파일:VXSgrLightCurve.png|섬네일|left|AAVSO 데이터에 기반한 궁수자리 VX의 [[가시광선|가시광선 대역]] [[광도곡선]]<ref name="aavso"/>]]
이 별은 732일의 맥동 주기를 가지는 SRc 유형의 차가운 [[준규칙 변광성]]으로 분류되고 변동 정도는 때로는 [[장주기 변광성]]과 비슷한 진폭을 갖기도 하고 다른 경우에는 훨씬 더 작다. 분광형은 최대 광도 근처의 M4e와 최소 광도의 M9.8e 사이에서 변하며 [[여키스 항성분류법|광도계급]]은 [[여키스 항성분류법|밝은 초거성]]을 나타내는 Ia다. [[스펙트럼]]에는 강한 [[항성풍]]으로 인해 별이 질량을 잃고 있음을 나타내는 [[방출선]]이 나타난다.<ref name=Lockwood/>

궁수자리 VX의 [[연주시차]]는 {{val|0.64|0.06|u=mas}}로 측정되었으며 이는 약 5,100광년의 거리를 나타낸다. 이는 궁수자리 VX가 속한 것으로 생각되는 [[성협]]인 [[궁수자리 OB1]]까지의 거리에 부합하며 [[시선속도]]와 [[고유운동]]도 성협의 다른 구성원과 일치한다.<ref name=xu2018/>

== 특성 ==
궁수자리 VX의 [[유효온도]]는 최소 광도의 약 2,400&nbsp;K에서 최대 광도의 약 3,300&nbsp;K 사이에서 변하고 이러한 낮은 온도는 가장 차가운 [[점근거성열|점근거성]]과 비슷하며 거대한 초거성일 경우에는 전례가 없다.<ref name=chiavassa/><ref name="Lockwood"/> 별의 맥동 중에 대기가 확장되고 불규칙하며 가변적이지만 [[절대등급#복사등급|복사광도]]는 시각적 광도보다 변화가 적고 약 {{태양광도|195,000}}로 계산되며 3,300&nbsp;K의 유효온도에서 반경은 {{태양반경|1,120}}와 {{태양반경|1,550}} 사이일 것으로 예상되고<ref name=xu2018/> 오래된 연구에서는 종종 더 높은 광도로 계산되었다.<ref name=dejager>{{저널 인용|bibcode=1988A&AS...72..259D|title=Mass loss rates in the Hertzsprung-Russell diagram|journal=Astronomy and Astrophysics Supplement Series|volume=72|pages=259|last1=De Jager|first1=C.|last2=Nieuwenhuijzen|first2=H.|last3=Van Der Hucht|first3=K. A.|year=1988}}</ref><ref name=mauron/>

궁수자리 VX의 대기는 전형적인 [[OH/IR 별]]의 대기 중 물 분자 층과 SiO 메이저를 보여주며<ref name="Greenhill"/> 메이저는 1,590 파섹의 거리를 도출하는 데 사용되었고<ref name=chen/> 또한 스펙트럼은 강한 [[산화 바나듐(II)|VO]] 및 [[사이아노젠|CN]]을 나타낸다. 여러 측면에서 대기는 [[미라 (항성)|미라]]형 변광성과 같은 저질량 점근거성과 유사하지만 초거성의 광도와 크기를 가진다.<ref name=chiavassa/>

2018년 5월의 또 다른 논문에서는 궁수자리 VX가 극대거성일 수 있다고 제안하는데<ref name="xu2018" /> 그렇다면 이는 매우 희귀한 적색극대거성 중 하나가 될 것이다.

최근 논문에서는{{언제|날짜=2023-10}} 궁수자리 VX가 적색초거성이나 적색극대거성이 아닌 거대한 점근거성이라고 명시하고 있는데 이는 스펙트럼에 [[루비듐]]이 표시되고 질량 손실과 광도가 높기 때문으로 저질량 별과 고질량 별 사이의 별인 [[초점근거성]]으로 알려진 일종의 점근거성일 가능성이 있다.<ref name=tabernero/>

== 같이 보기 ==
* [[반지름순 항성 목록]]

== 각주 ==
{{각주|refs=

<ref name="aavso">{{웹 인용 |title=Download Data |url=https://www.aavso.org/data-download |website=aavso.org |publisher=AAVSO |access-date=1 October 2021}}</ref>

<ref name="Greenhill">{{저널 인용| author=Greenhill| title=The SiO Masers and Dust Shell of VX SGR| journal=[[Astrophysics and Space Science]]| volume=224|issue=1–2| pages=1–9 |year=1995|bibcode=1995Ap&SS.224..469G|doi = 10.1007/BF00667909| display-authors=1| last2=Colomer| first2=F.| last3=Moran| first3=J. M.| last4=Backer| first4=D. C.| last5=Danchi| first5=W. C.| last6=Bester| first6=M. | s2cid=189849486}}</ref>
<!--
<ref name=debeck>{{저널 인용|bibcode=2010A&A...523A..18D|arxiv=1008.1083|title=Probing the mass-loss history of AGB and red supergiant stars from CO rotational line profiles. II. CO line survey of evolved stars: Derivation of mass-loss rate formulae|journal=Astronomy and Astrophysics|volume=523|pages=A18|author1=De Beck|first1=E.|last2=Decin|first2=L.|last3=De Koter|first3=A.|last4=Justtanont|first4=K.|last5=Verhoelst|first5=T.|last6=Kemper|first6=F.|last7=Menten|first7=K. M.|year=2010|doi=10.1051/0004-6361/200913771}}</ref>
-->
<ref name="Lockwood">{{저널 인용| author1=Lockwood, G.W. |author2=Wing, R. F.| title=The light and spectrum variations of VX Sagittarii, an extremely cool supergiant |journal=[[Monthly Notices of the Royal Astronomical Society]]| volume=198|issue=2| pages=385–404 |year=1982 |bibcode=1982MNRAS.198..385L | doi=10.1093/mnras/198.2.385|doi-access=free}}</ref>

<ref name=xu2018>{{저널 인용|arxiv=1804.00894|doi=10.3847/1538-4357/aabba6|bibcode=2018ApJ...859...14X|title=The Parallax of the Red Hypergiant VX Sgr with Accurate Tropospheric Delay Calibration|journal=The Astrophysical Journal|volume=859|issue=1|pages=14|year=2018|last1=Xu|first1=Shuangjing|last2=Zhang|first2=Bo|last3=Reid|first3=Mark J|last4=Menten|first4=Karl M|last5=Zheng|first5=Xingwu|last6=Wang|first6=Guangli|s2cid=55572194 |doi-access=free }}</ref>

<ref name=hipparcos>{{저널 인용|bibcode=2007A&A...474..653V|title=Validation of the new Hipparcos reduction|journal=Astronomy and Astrophysics|volume=474|issue=2|pages=653–664|last1=Van Leeuwen|first1=F.|year=2007|doi=10.1051/0004-6361:20078357|arxiv = 0708.1752 |s2cid=18759600}}</ref>

<ref name=kiss>{{저널 인용 | last1 = Kiss | first1 = L. L. | last2 = Szabó | first2 = G. M. | last3 = Bedding | first3 = T. R. |author3-link= Tim Bedding| doi = 10.1111/j.1365-2966.2006.10973.x | title = Variability in red supergiant stars: Pulsations, long secondary periods and convection noise | journal = Monthly Notices of the Royal Astronomical Society | volume = 372 | issue = 4 | pages = 1721–1734 | year = 2006 |arxiv = astro-ph/0608438 |bibcode = 2006MNRAS.372.1721K | s2cid = 5203133 }}</ref>

<ref name=gcvs>{{저널 인용|bibcode=2009yCat....102025S|title=VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)|journal=VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S|volume=1|display-authors=etal|last1=Samus|first1=N. N.|last2=Durlevich|first2=O. V.|year=2009}}</ref>

<ref name=chen>{{저널 인용 | last1 = Chen | first1 = X. | last2 = Shen | first2 = Z. Q. | last3 = Xu | first3 = Y. | doi = 10.1088/1009-9271/7/4/09 | title = Measuring the Distance of VX Sagittarii with SiO Maser Proper Motions | journal = Chinese Journal of Astronomy and Astrophysics | volume = 7 | issue = 4 | pages = 531 | year = 2007 | bibcode = 2007ChJAA...7..531C | doi-access = free }}</ref>

<ref name=chiavassa>{{저널 인용 | title=VLTI/AMBER spectro-interferometric imaging of VX Sgr's inhomogenous outer atmosphere
 | journal=Astronomy and Astrophysics | volume=511 | pages=A51 |year=2009
 | last1=Chiavassa | first1=A. | last2=Lacour | first2=S.
 | last3=Millour | first3=F. | last4=Driebe | first4=T.
 | last5=Wittkowski | first5=M. | last6=Plez | first6=B.
 | last7=Thiébaut | first7=E. | last8=Josselin | first8=E.
 | last9=Freytag | first9=B. | last10=Scholz | first10=M.
 | last11=Haubois | first11=X.
 | arxiv=0911.4422 | doi=10.1051/0004-6361/200913288
 | bibcode = 2010A&A...511A..51C | s2cid=55877127 }}</ref>

<ref name=mauron>{{저널 인용|arxiv=1010.5369v1|author1=Nicolas Mauron|author2=Eric Josselin|title=The mass-loss rates of red supergiants and the de Jager prescription|journal=Astronomy & Astrophysics|volume=526|pages=A156|year=2010|doi=10.1051/0004-6361/201013993|bibcode = 2011A&A...526A.156M |s2cid=119276502}}</ref>

<ref name=gh>{{저널 인용|bibcode=2007A&A...462..711G|arxiv=astro-ph/0609106|title=Lithium and zirconium abundances in massive Galactic O-rich AGB stars|journal=Astronomy and Astrophysics|volume=462|issue=2|pages=711|last1=García-Hernández|first1=D. A|last2=García-Lario|first2=P|last3=Plez|first3=B|last4=Manchado|first4=A|last5=d'Antona|first5=F|last6=Lub|first6=J|last7=Habing|first7=H|year=2007|doi=10.1051/0004-6361:20065785|s2cid=16016698}}</ref>

}}

== 더 읽어보기 ==
{{Div col|small=yes}}
*{{인용 | postscript=.
 | title=The extended atmosphere and circumstellar environment of the cool evolved star VX Sagittarii as seen by MATISSE
 | last1=Chiavassa | first1=A. | last2=Kravchenko | first2=K.
 | last3=Montargès | first3=M. | last4=Millour | first4=F.
 | last5=Matter | first5=A. | last6=Freytag | first6=B.
 | last7=Wittkowski | first7=M. | last8=Hocdé | first8=V.
 | last9=Cruzalèbes | first9=P. | last10=Allouche | first10=F.
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 | last17=Weigelt | first17=G. | last18=Berio | first18=P.
 | last19=Bendjoya | first19=P. | last20=Bettonvil | first20=F.
 | last21=Domiciano de Souza | first21=A. | last22=Heininger | first22=M.
 | last23=Henning | first23=Th. | last24=Isbell | first24=J. W.
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 | last27=Lehmitz | first27=M. | last28=Meisenheimer | first28=K.
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 | last31=Augereau | first31=J. -C. | last32=van Boekel | first32=R.
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 | last41=Kokoulina | first41=E. | last42=Lagadec | first42=E.
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 | last45=Nardetto | first45=N. | last46=Paladini | first46=C.
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 | volume=658 | id=A185 | date=February 2022
 | pages=A185
 | doi=10.1051/0004-6361/202142514 | arxiv=2112.10695
 | bibcode=2022A&A...658A.185C | s2cid=245335318
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*{{인용 | postscript=.
 | title=Observational characteristics of SiO masers around VX Sgr
 | last1=Su | first1=Jiang-Bo | last2=Shen | first2=Zhi-Qiang
 | last3=Chen | first3=Xi | last4=Liu | first4=Jing
 | last5=Wang | first5=Yan | last6=Zhao | first6=Yi-Bin
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*{{인용 | postscript=.
 | title=Dynamics of SiO Masers around VX Sgr
 | last1=Su | first1=J. B. | last2=Shen | first2=Z. -Q.
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 | display-authors=1 | journal=The Astrophysical Journal
 | volume=853 | issue=1 | id=42 | date=January 2018
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 | doi-access=free }}
*{{인용 | postscript=. | display-authors=1
 | title=Outward Motions of SiO Masers around VX Sgr
 | last1=Su | first1=J. B. | last2=Shen | first2=Z. -Q.
 | last3=Chen | first3=X. | last4=Jiang | first4=D. R.
 | journal=Journal of Astrophysics and Astronomy
 | volume=35 | issue=3 | pages=539–540 | date=September 2014
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*{{인용 | postscript=.
 | title=High-resolution VLBA Observations of Three 7 mm SiO Masers toward VX Sgr at Five Epochs
 | last1=Su | first1=J. B. | last2=Shen | first2=Z. -Q.
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*{{인용 | postscript=. | display-authors=1
 | title=Pumping Mechanisms for SiO Masers around VX Sgr
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*{{인용 | postscript=.
 | title=High-frequency VLBI Imaging of Sgr A* and VX Sgr
 | display-authors=1 | last1=Lu | first1=R. -S.
 | last2=Krichbaum | first2=T. P. | last3=Zensus | first3=A. J.
 | work=Proceedings of the 10th European VLBI Network Symposium and EVN Users Meeting: VLBI and the new generation of radio arrays. September 20-24, 2010. Manchester, UK
 | id=87 | year=2010
 | volume=10
 | page=087
 | doi=10.22323/1.125.0087 | bibcode=2010evn..confE..87L | doi-access=free}}
*{{인용 | postscript=.
 | title=Inward Motions of the Compact SiO Masers around VX Sagittarii
 | last1=Chen | first1=Xi | last2=Shen | first2=Zhi-Qiang
 | last3=Imai | first3=Hiroshi | last4=Kamohara | first4=Ryuichi
 | display-authors=1 | journal=The Astrophysical Journal
 | volume=640 | issue=2 | pages=982–994
 | date=April 2006 | doi=10.1086/500168
 | arxiv=astro-ph/0512011 | bibcode=2006ApJ...640..982C | s2cid=14240593
 }}
*{{인용 | postscript=. | display-authors=1
 | title=Time Variation of SiO Masers in VX Sagittarii over an Optically Quiescent Phase
 | last1=Kamohara | first1=Ryuichi | last2=Deguchi | first2=Shuji
 | last3=Miyoshi | first3=Makoto | last4=Shen | first4=Zhi-Qiang
 | journal=Publications of the Astronomical Society of Japan
 | volume=57 | issue=2 | pages=341–345 | date=April 2005
 | doi=10.1093/pasj/57.2.341 | bibcode=2005PASJ...57..341K }}
*{{인용 | postscript=. | display-authors=1
 | title=The radially expanding molecular outflow of VX Sagittarii
 | last1=Murakawa | first1=K. | last2=Yates | first2=J. A.
 | last3=Richards | first3=A. M. S. | last4=Cohen | first4=R. J.
 | journal=Monthly Notices of the Royal Astronomical Society
 | volume=344 | issue=1 | pages=112 | date=September 2003
 | doi=10.1046/j.1365-8711.2003.06626.x | bibcode=2003MNRAS.344....1M | doi-access=free }}
*{{인용 | postscript=.
 | title=The H2O maser proper motions of RT Vir and VX Sgr
 | display-authors=1 | last1=Yates | first1=J. A.
 | last2=Richards | first2=A. M. S. | last3=Gray | first3=M. D.
 | work=Cosmic Masers: From Proto-Stars to Black Holes, IAU Symposium #206, held 5-10 March 2001 in Angra dos Reis, Rio de Janeiro, Brazil
 | editor1-first=Victor | editor1-last=Mineese
 | editor2-first=Mark | editor2-last=Reid
 | publication-place=San Francisco
 | publisher=Astronomical Society of the Pacific
 | year=2002 | volume=206
 | page=298
 | bibcode=2002IAUS..206..298Y }}
*{{인용 | postscript=.
 | title=Magnetic field structure in the outer OH maser envelope of VX Sagittarii
 | display-authors=1 | last1=Szymczak | first1=M.
 | last2=Cohen | first2=R. J. | last3=Richards | first3=A. M. S.
 | journal=Astronomy and Astrophysics
 | volume=371 | pages=1012–1017 | date=June 2001
 | issue=3
 | doi=10.1051/0004-6361:20010451 | bibcode=2001A&A...371.1012S | s2cid=123021236
 | doi-access=free }}
*{{인용 | postscript=.
 | title=Observations of late-type variable stars in the water-vapor radio line. The supergiant VX Sagittarii
 | last1=Pashchenko | first1=M. I. | last2=Rudnitskii | first2=G. M.
 | journal=Astronomy Reports
 | volume=43 | issue=5 | date=May 1999 | pages=311–324
 | bibcode=1999ARep...43..311P }}
*{{인용 | postscript=.
 | title=H2O maser emission of the M-type supergiant VX Sgr
 | display-authors=1 | last1=Berulis | first1=I. I.
 | last2=Pashchenko | first2=M. I. | last3=Rudnitskij | first3=G. M.
 | journal=Astronomical and Astrophysical Transactions
 | volume=18 | issue=1 | pages=77–82 | year=1999
 | doi=10.1080/10556799908203038 | bibcode=1999A&AT...18...77B }}
*{{인용 | postscript=.
 | title=The circumstellar magnetic field of VX Sagittarii
 | display-authors=1 | last1=Trigilio 7| first1=C.
 | last2=Umana | first2=G. | last3=Cohen | first3=R. J.
 | journal=Monthly Notices of the Royal Astronomical Society
 | volume=297 | issue=2 | pages=497–501 | date=June 1998
 | doi=10.1046/j.1365-8711.1998.01538.x | bibcode=1998MNRAS.297..497T | doi-access=free }}
*{{인용 | postscript=.
 | title=86 GHz VLBI Imaging of the SiO Masers in VX SGR
 | display-authors=1 | last1=Doeleman | first1=S. S.
 | last2=Lonsdale | first2=C. J. | last3=Greenhill | first3=L. J.
 | work=Radio Emission from Galactic and Extragalactic Compact Sources, IAU Colloquium 164
 | series=ASP Conference Series
 | volume=144 | page=363 | year=1998
 | editor1-first=J. A. | editor1-last=Zensus
 | editor2-first=G. B. | editor2-last=Taylor
 | editor3-first=J. M. | editor3-last=Wrobel
 | bibcode=1998ASPC..144..363D }}
*{{인용 | postscript=.
 | title=The Spatial Distribution of Circularly Polarized 1612 MHz OH Maser Emission From VX SGR
 | last1=Zell | first1=Philip J. | last2=Fix | first2=John D.
 | journal=Astronomical Journal
 | volume=112 | page=252 | date=July 1996
 | doi=10.1086/118007 | bibcode=1996AJ....112..252Z | doi-access=free }}
*{{인용 | postscript=.
 | title=Magnetic field measurements in the circumstellar envelope of VX SGR
 | display-authors=1 | last1=Trigilio | first1=C.
 | last2=Umana | first2=G. | last3=Cohen | first3=R. J.
 | work=Cool stars, stellar systems, and the sun: Proceedings of the 9th Cambridge workshop; held 3-6 October 1995 in Florence, Italy
 | series=Astronomical Society of the Pacific Conference Series
 | volume=109 | year=1996 | page=549
 | publication-place=San Francisco
 | publisher=Astronomical Society of the Pacific
 | editor1-first=Roberto | editor1-last=Pallavicini
 | editor2-first=Andrea K. | editor2-last=Dupree
 | bibcode=1996ASPC..109..549T }}
*{{인용 | postscript=.
 | title=Circumstellar envelope of VX SGR resolved with long-baseline interferometry at millimeter and midinfrared wavelengths
 | last1=Greenhill | first1=Lincoln J. | last2=Moran | first2=James M.
 | last3=Backer | first3=Donald C. | last4=Bester | first4=Manfred
 | last5=Danchi | first5=William C. | display-authors=1
 | work=Conference Proceedings of SPIE: Amplitude and Intensity Spatial Interferometry II
 | series=Amplitude and Intensity Spatial Interferometry II
 | editor-first=James B. | editor-last=Breckinridge
 | volume=2200 | pages=304–315 | date=June 1994
 | doi=10.1117/12.177248 | bibcode=1994SPIE.2200..304G | s2cid=120318207
 }}
*{{인용 | postscript=.
 | title=The Circumstellar Envelope of VX SGR
 | last1=Greenhill | first1=L. J. | last2=Colomer | first2=F.
 | last3=Moran | first3=J. M. | last4=Backer | first4=D. C.
 | last5=Bester | first5=M. A. | last6=Danchi | first6=W. C.
 | last7=Townes | first7=C. H. | display-authors=1
 | journal=Bulletin of the American Astronomical Society
 | volume=25 | page=824 | date=May 1993
 | bibcode=1993AAS...182.2203G }}
*{{인용 | postscript=.
 | title=The Circumstellar Envelope of VX-Sagittarii
 | last=Yu | first=Zhiyao
 | journal=Astrophysics and Space Science
 | volume=192 | issue=1 | pages=53–62 | date=June 1992
 | doi=10.1007/BF00653259 | bibcode=1992Ap&SS.192...53Y | s2cid=119015723
 }}
*{{인용 | postscript=.
 | title=A model for the wind of the M supergiant VX Sagittarii
 | last=Pijpers | first=F. P.
 | journal=Astronomy and Astrophysics
 | volume=238 | page=256 | date=November 1990
 | bibcode=1990A&A...238..256P }}
*{{인용 | postscript=.
 | title=Interaction of Dust and Radiation in Circumstellar Envelopes. I. The Expansion Velocity Gradient in the Envelope of VX Sagittarii
 | last=Netzer | first=Nathan
 | journal=Astrophysical Journal
 | volume=342 | page=1068 | date=July 1989
 | doi=10.1086/167663 | bibcode=1989ApJ...342.1068N }}
*{{인용 | postscript=.
 | title=MERLIN observations of the circumstellar envelope of VX Sagittarius
 | last1=Chapman | first1=J. M. | last2=Cohen | first2=R. J.
 | journal=Monthly Notices of the Royal Astronomical Society
 | volume=220 | pages=513–528 | date=May 1986
 | issue=3
 | doi=10.1093/mnras/220.3.513 | bibcode=1986MNRAS.220..513C | doi-access=free }}
*{{인용 | postscript=.
 | title=Beat Phenomena in the Light Curve of VX Sgr
 | last=Smith | first=Horace A.
 | journal=The Journal of the American Association of Variable Star Observers
 | volume=6 | issue=2 | page=63 | date=February 1978
 | bibcode=1978JAVSO...6...63S }}
*{{인용 | postscript=.
 | title=VX Sagittarii: A Variable at Many Wavelengths
 | last=Dinerstein | first=Harriet
 | journal=Journal of the American Association of Variable Star Observers
 | volume=2 | issue=2 | pages=52–59 | year=1973
 | bibcode=1973JAVSO...2...52D }}
*{{인용 | postscript=.
 | title=Spectroscopic and Photometric Changes in the Peculiar Infrared Star VX Sagittarius
 | last1=Humphreys | first1=Roberta M. | last2=Lockwood | first2=G. W.
 | journal=Astrophysical Journal
 | volume=172 | page=L59 | date=March 1972
 | doi=10.1086/180891 | bibcode=1972ApJ...172L..59H }}
*{{인용 | postscript=.
 | title=Similarity of the OH Emissions from VX Sagittarii and VY Canis Majoris
 | display-authors=1 | last1=Robinson | first1=B. J.
 | last2=Caswell | first2=J. L. | last3=Dickel | first3=H. R.
 | journal=Astrophysical Letters
 | volume=8 | page=171 | date=March 1971
 | bibcode=1971ApL.....8..171R }}
{{Div col end}}

{{궁수자리}}

{{기본정렬:VX Sagittarii}}
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[[분류:점근거성열성]]
[[분류:준규칙 변광성]]
[[분류:방출선별]]
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[[분류:2MASS 천체|J18080404-2213266]]
[[분류:TIC 천체]]
[[분류:궁수자리]]
[[분류:소천성표 천체|BD-22 4575]]
[[분류:아르겔란더 천체|궁수자리 VX]]
[[분류:항성종족 I]]
[[분류:헨리 드레이퍼 목록 천체|165674]]
[[분류:히파르코스 천체|088838]]