S Virginis

{{Short description|Variable star in the constellation Virgo}}

{{Distinguish|Spica Virginis|Sigma Virginis|SS Virginis}}

{{Starbox begin

| name = S Virginis

}}

{{Starbox image

| image = 250px

| caption = The visual band light curve of S Virginis, from AAVSO data}}

{{Starbox observe

| epoch = J2000

| constell = Virgo{{cite constellation|S Virginis}}

| ra = {{RA|13|33|00.1103}}

| dec = {{DEC|−07|11|41.0387}}

| appmag_v = 6.3 - 13.2

}}

{{Starbox character

| type = AGB{{cite journal |bibcode=2017ApJ...841...33M |title=A Catalog of GALEX Ultraviolet Emission from Asymptotic Giant Branch Stars |author1=Montez, Rodolfo, Jr. |last2=Ramstedt |first2=Sofia |last3=Kastner |first3=Joel H. |last4=Vlemmings |first4=Wouter |last5=Sanchez |first5=Enmanuel |journal=The Astrophysical Journal |date=2017 |volume=841 |issue=1 |page=33 |doi=10.3847/1538-4357/aa704d |doi-access=free |arxiv=1705.05371 }}

| class = M6IIIe-M9.5e

| b-v = +0.74

| u-b = +2.1{{cite journal |bibcode=2022A&A...661A..89P |title=Catalogue of stars measured in the Geneva seven-colour photometric system |last1=Paunzen |first1=E. |journal=Astronomy and Astrophysics |date=2022 |volume=661 |pages=A89 |doi=10.1051/0004-6361/202142355 |arxiv=2111.04810 }}

| variable = Mira

}}

{{Starbox astrometry

| radial_v = 9.60{{cite journal |bibcode=2006AstL...32..759G |title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system |last1=Gontcharov |first1=G. A. |journal=Astronomy Letters |date=2006 |volume=32 |issue=11 |page=759 |doi=10.1134/S1063773706110065 |arxiv=1606.08053 }}

| prop_mo_ra = {{val|−16.813|0.680}}

| prop_mo_dec = {{val|3.010|0.537}}

| parallax = 1.3709

| p_error = 0.3737

| parallax_footnote =

}}

{{Starbox detail

| mass = 3.6{{cite journal |bibcode=2024A&A...691A..98K |title=Transferring spectroscopic stellar labels to 217 million Gaia DR3 XP stars with SHBoost |last1=Khalatyan |first1=A. |last2=Anders |first2=F. |last3=Chiappini |first3=C. |last4=Queiroz |first4=A. B. A. |last5=Nepal |first5=S. |last6=Dal Ponte |first6=M. |last7=Jordi |first7=C. |last8=Guiglion |first8=G. |last9=Valentini |first9=M. |last10=Torralba Elipe |first10=G. |last11=Steinmetz |first11=M. |last12=Pantaleoni-González |first12=M. |last13=Malhotra |first13=S. |last14=Jiménez-Arranz |first14=Ó. |last15=Enke |first15=H. |last16=Casamiquela |first16=L. |last17=Ardèvol |first17=J. |journal=Astronomy and Astrophysics |date=2024 |volume=691 |pages=A98 |doi=10.1051/0004-6361/202451427 |arxiv=2407.06963 }}

| temperature = 3,283{{cite journal |bibcode=2018ApJ...867..105T |title=The ATLAS All-Sky Stellar Reference Catalog |last1=Tonry |first1=J. L. |last2=Denneau |first2=L. |last3=Flewelling |first3=H. |last4=Heinze |first4=A. N. |last5=Onken |first5=C. A. |last6=Smartt |first6=S. J. |last7=Stalder |first7=B. |last8=Weiland |first8=H. J. |last9=Wolf |first9=C. |journal=The Astrophysical Journal |date=2018 |volume=867 |issue=2 |page=105 |doi=10.3847/1538-4357/aae386 |doi-access=free |arxiv=1809.09157 }}

| luminosity = 38.174{{cite journal |bibcode=2016AJ....151...59C |title=The Catalog of Earth-Like Exoplanet Survey Targets (CELESTA): A Database of Habitable Zones Around Nearby Stars |last1=Chandler |first1=Colin Orion |last2=McDonald |first2=Iain |last3=Kane |first3=Stephen R. |journal=The Astronomical Journal |date=2016 |volume=151 |issue=3 |page=59 |doi=10.3847/0004-6256/151/3/59 |doi-access=free |arxiv=1510.05666 }}

| radius = 435{{cite journal |bibcode=2022A&A...657A...7K |title=Stellar and substellar companions from Gaia EDR3. Proper-motion anomaly and resolved common proper-motion pairs |last1=Kervella |first1=Pierre |last2=Arenou |first2=Frédéric |last3=Thévenin |first3=Frédéric |journal=Astronomy and Astrophysics |date=2022 |volume=657 |doi=10.1051/0004-6361/202142146 |arxiv=2109.10912 }}

| gravity = 2.29

| metal_fe = −0.24

| age_myr =

}}

{{Starbox catalog

| names = S Virginis, BD−06°3837, HIP 66100, GC 18312, HR 5101, AAVSO 1327-06, GCRV 8027, SAO 139403, HD 117833{{cite simbad|title=S Virginis|access-date=2025-05-05}}

}}

{{Starbox reference

| Simbad = V*+S+Vir

}}

{{Starbox end}}

S Virginis is a Mira-type variable star in the constellation Virgo. Located approximately {{convert|700|pc|ly}} distant, it varies between magnitudes 6.3 and 13.2 over a period of approximately 375 days.{{cite web|url=http://www.aavso.org/vsx/index.php?view=detail.top&oid=37810 |title=S Virginis|author=VSX|date=4 January 2010|work=AAVSO Website|publisher=American Association of Variable Star Observers|access-date=27 June 2014}}