{{Short description|Star in the Hercules constellation}} {{lowercase title}} {{Starbox begin | name = q Herculis }} {{Starbox observe | epoch = J2000.0 | constell = Hercules<ref name=xhip/> | ra = {{RA|16|11|28.74}}<ref name=dr3/> | dec = {{DEC|+16|39|56.5}}<ref name=dr3/> | appmag_v = 6.08<ref name=tycho2>{{cite journal |last1=Høg |first1=E. |last2=Fabricius |first2=C. |last3=Makarov |first3=V. V. |last4=Urban |first4=S. |last5=Corbin |first5=T. |last6=Wycoff |first6=G. |last7=Bastian |first7=U. |last8=Schwekendiek |first8=P. |last9=Wicenec |first9=A. |title=The Tycho-2 catalogue of the 2.5 million brightest stars |journal=Astronomy and Astrophysics |date=2000 |volume=355 |bibcode=2000A&A...355L..27H }}</ref> }} {{Starbox character | type = main sequence<ref name=dr3/><ref name=zorec2012/> | class = A0V<ref name=DATA>{{cite web | url=http://vizier.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=5050&-corr=PK=HR&-out.max=9999&HR=6035 | title=VizieR Detailed Page | accessdate=2012-07-13 | archive-url=https://web.archive.org/web/20160304204527/http://vizier.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=5050&-corr=PK=HR&-out.max=9999&HR=6035 | archive-date=2016-03-04 }}</ref> | b-v = 0.02<ref name=DATA /> | u-b = 0.00<ref name=DATA /> | variable = }} {{Starbox astrometry | prop_mo_ra = +3,552<ref name=dr3/> | prop_mo_dec = +4.875<ref name=dr3/> | parallax = 8.6995 | p_error = 0.0353 | parallax_footnote = <ref name=dr3>{{cite Gaia DR3|1198813956016764288}}</ref> | absmag_v = +0.63<ref name=xhip>{{cite XHIP|79332}}</ref> }} {{Starbox detail | mass = 2.4<ref name=tic>{{cite journal |last1=Stassun |first1=Keivan G. |last2=Oelkers |first2=Ryan J. |last3=Paegert |first3=Martin |last4=Torres |first4=Guillermo |last5=Pepper |first5=Joshua |last6=De Lee |first6=Nathan |last7=Collins |first7=Kevin |last8=Latham |first8=David W. |last9=Muirhead |first9=Philip S. |last10=Chittidi |first10=Jay |last11=Rojas-Ayala |first11=Bárbara |last12=Fleming |first12=Scott W. |last13=Rose |first13=Mark E. |last14=Tenenbaum |first14=Peter |last15=Ting |first15=Eric B. |last16=Kane |first16=Stephen R. |last17=Barclay |first17=Thomas |last18=Bean |first18=Jacob L. |last19=Brassuer |first19=C. E. |last20=Charbonneau |first20=David |last21=Ge |first21=Jian |last22=Lissauer |first22=Jack J. |last23=Mann |first23=Andrew W. |last24=McLean |first24=Brian |last25=Mullally |first25=Susan |last26=Narita |first26=Norio |last27=Plavchan |first27=Peter |last28=Ricker |first28=George R. |last29=Sasselov |first29=Dimitar |last30=Seager |first30=S. |display-authors=1 |title=The Revised TESS Input Catalog and Candidate Target List |journal=The Astronomical Journal |date=2019 |volume=158 |issue=4 |page=138 |doi=10.3847/1538-3881/ab3467 |doi-access=free |arxiv=1905.10694 |bibcode=2019AJ....158..138S }}</ref> | temperature = 9,567<ref name=tic/> | luminosity = 50<ref name=tic/> | radius = 2.6<ref name=tic/> | gravity = 4.00<ref name=tic/> | rotational_velocity = 43<ref name=zorec2012>{{cite journal |last1=Zorec |first1=J. |last2=Royer |first2=F. |title=Rotational velocities of A-type stars. IV. Evolution of rotational velocities |journal=Astronomy and Astrophysics |date=2012 |volume=537 |pages=A120 |doi=10.1051/0004-6361/201117691 |arxiv=1201.2052 |bibcode=2012A&A...537A.120Z }}</ref> | age_myr = 380<ref name=dr3/> }} {{Starbox catalog | names = {{odlist |B=q&nbsp;Her |F=48&nbsp;Serpentis |BD=+17 2982 |SAO=101994 |HD=145647 |HR=6035 }}<ref name=SIMBAD>{{cite simbad |title=q Herculis |access-date=2025-10-17}}</ref> }} {{Starbox reference |Simbad=q+Her}} {{Starbox end}} '''q Herculis''' (48 Serpentis) is a star in the constellation Hercules that is situated at a distance of approximately 439.95 light-years from the Sun. Its apparent magnitude is +6.08.

The largest star q Herculis is a white star of the spectral type A0V. It has a mass of approximately {{Solar mass|2.4|link=y}}, a radius of approximately {{Solar radius|2.6|link=y}}, and a luminosity of approximately {{Solar luminosity|50|link=y}}. Its effective temperature is approximately {{val|fmt=commas|9567|ul=K}}.<ref name=tic/> The age of q Herculis is determined to be about 380 million years.<ref name=dr3/>

== Nomenclature == ''q Herculis'' is this double star's Bayer designation. It was once considered to be in the constellation of Serpens, where it got its Flamsteed designation ''48 Serpentis''.<ref name=Wagman1987>{{citation | last=Wagman | first=M. | title=Flamsteed's Missing Stars | postscript=. | journal=Journal for the History of Astronomy | volume=18 | issue = 3| pages=209–223 |date=August 1987 | bibcode=1987JHA....18..209W | doi=10.1177/002182868701800305 | s2cid=118445625 }}</ref>

== References == {{reflist}} {{Hercules (constellation)}}

Category:Hercules (constellation) 0145647 6035 Herculis, q Serpentis, 48 Category:A-type main-sequence stars

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