View source for S Microscopii

{{Short description|Variable star in the constellation Microscopium}}
{{Starbox begin
 | name = S&nbsp;Microscopii
}}
{{Starbox image
| image = [[Image:SMicLightCurve.png|250px]]
| caption = The [[Photometric_system#Photometric_letters|visual band]] [[light curve]] of S Microscopii, from AAVSO data<ref name="aavso"/>
}}
{{Starbox observe
 | epoch       = [[J2000.0]]
 | equinox     = [[J2000.0]] ([[International Celestial Reference System|ICRS]])
 | constell    = [[Microscopium]]
|ra=   {{RA|21|26|44.1040}}<ref name=SIMBAD>{{cite simbad|title=V* S Mic|accessdate=20 March 2015}}</ref>
|dec=  {{DEC|&minus;29|51|04.680}}<ref name=SIMBAD/>
 | appmag_v    = 7.8 - 14.8}}
{{Starbox character
 | class       = M3e-M5.5<ref name=AAVSOS/>
 | u-b         = 
 | b-v         =
 | r-i         = 
}}
{{Starbox astrometry
 | parallax    = 	0.5137 
 | p_error     = 0.1623
 | parallax_footnote = <ref name=Gaia-DR2>{{cite DR2|6786143886408856576}}</ref>
 | absmag_v    = 
}}
{{Starbox catalog
| names = S&nbsp;Microscopii, [[Durchmusterung|CD]]−30° 18609, [[Henry Draper Catalogue|HD]]&nbsp;204045
}}
{{Starbox reference
| Simbad = S+Mic
}}
{{Starbox end}}

'''S Microscopii''' is a [[star]] in the [[constellation]] [[Microscopium (constellation)|Microscopium]]. It is a red giant star of spectral type M3e-M5.5 that is also a [[Mira variable]], with an [[apparent magnitude]] ranging between 7.4 and 14.8 over 210 days.<ref name=AAVSOS>{{cite web|url=http://www.aavso.org/vsx/index.php?view=detail.top&oid=18706 |title=S Microscopii |author =Otero, Sebastian Alberto |date=12 April 2011 |work=AAVSO Website|publisher=[[American Association of Variable Star Observers]]|accessdate=20 March 2015}}</ref> The Astronomical Society of Southern Africa in 2003 reported that observations of S Microscopii were very urgently needed as data on its light curve was incomplete.<ref>{{cite journal|last=Cooper|first=Tim|date=2003|title=Presidential address: Amateur Observations - Successes and Opportunities|journal=Monthly Notes of the Astronomical Society of Southern Africa|volume=62|pages=234–40|bibcode=2003MNSSA..62..234C}}</ref>

==References==
{{reflist|refs=

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

}}

{{Stars of Microscopium}}

{{DEFAULTSORT:S Microscopii}}
[[Category:Microscopium]]
[[Category:M-type giants]]
[[Category:Mira variables]]
[[Category:Objects with variable star designations|Microscopii, S]]
[[Category:Durchmusterung objects]]
[[Category:Henry Draper Catalogue objects|204045]]
[[Category:Hipparcos objects|102096]]
[[Category:Emission-line stars]]


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