60 Herculis

{{Short description|White-hued star in the constellation Hercules}}

{{Starbox begin}}

{{Starbox observe

| epoch = J2000

| constell = Hercules

| ra = {{RA|17|05|22.69066}}{{Cite Gaia DR2|4544196074866779904}}

| dec = {{DEC|+12|44|26.9816}}

| appmag_v = 4.871{{cite journal|title=The Tycho-2 catalogue of the 2.5 million brightest stars|author=Høg, E.|display-authors=etal|date=2000|journal=Astronomy and Astrophysics|volume=355|pages=L27–L30|bibcode=2000A&A...355L..27H}}

}}

{{Starbox character

| type = main sequence

| class = A3V{{cite journal|bibcode=1995ApJS...99..135A|doi=10.1086/192182|title=The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars|journal=The Astrophysical Journal Supplement Series|volume=99|pages=135|year=1995|last1=Abt|first1=Helmut A.|last2=Morrell|first2=Nidia I.|doi-access=free}} or A4IV{{cite journal | display-authors=1 | last1=Cowley | first1=A. | last2=Cowley | first2=C. | last3=Jaschek | first3=M. | last4=Jaschek | first4=C. | title=A study of the bright A stars. I. A catalogue of spectral classifications | journal=Astronomical Journal | volume=74 | pages=375–406 | date=April 1969 | doi=10.1086/110819 | bibcode=1969AJ.....74..375C }}

| b-v = {{Val|+0.125|0.006}}

| u-b = +0.12{{cite journal|author1=Mermilliod, J.-C.|title=Compilation of Eggen's UBV data, transformed to UBV (unpublished)|journal=Catalogue of Eggen's UBV Data|url=http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?1986EgUBV........0M&db_key=AST&nosetcookie=1|date=1986|bibcode= 1986EgUBV........0M}}

| variable =

}}

{{Starbox astrometry

| radial_v = {{Val|−4.2|2}}{{cite journal|title=General catalogue of stellar radial velocities|journal=Washington|author=Wilson, Ralph Elmer|date=1953|bibcode=1953GCRV..C......0W}}

| prop_mo_ra = +49.805

| prop_mo_dec = −12.030

| parallax = 24.3967

| p_error = 0.2232

| parallax_footnote=

| absmag_v = 1.83{{cite journal | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | arxiv=1108.4971 | doi=10.1134/S1063773712050015 | s2cid=119257644 }}

}}

{{Starbox detail

| mass = {{Val|1.93|0.01}}{{cite journal|bibcode=2012A&A...537A.120Z|doi=10.1051/0004-6361/201117691|arxiv=1201.2052|title=Rotational velocities of A-type stars|journal=Astronomy & Astrophysics|volume=537|pages=A120|year=2012|last1=Zorec|first1=J.|last2=Royer|first2=F.|s2cid=55586789}}

| radius = 1.9{{cite journal|display-authors=1|author1=Pasinetti Fracassini, L. E.|author2=Pastori, L.|author3=Covino, S.|author4=Pozzi, A.|title=Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics|journal=Astronomy & Astrophysics|volume=367|pages=521–24|date=2001|issue=2|bibcode=2001A&A...367..521P|doi=10.1051/0004-6361:20000451|arxiv=astro-ph/0012289|s2cid=425754}}

| temperature = 8,299

| luminosity = 17.159

| gravity = {{Val|4.19|0.03}}{{cite journal|title=Fundamental parameters of nearby stars from the comparison with evolutionary calculations: masses, radii and effective temperatures|author1=Allende Prieto, C.|author2=Lambert, D. L.|journal=Astronomy and Astrophysics|volume=352|pages=555–562|date=1999|bibcode=1999A&A...352..555A|arxiv=astro-ph/9911002}}

| rotational_velocity = 117

| age_myr = 327{{cite journal | last1=David | first1=Trevor J. | last2=Hillenbrand | first2=Lynne A. | title=The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets | journal=The Astrophysical Journal | volume=804 | issue=2 | pages=146 | year=2015 | bibcode=2015ApJ...804..146D | arxiv=1501.03154 | doi=10.1088/0004-637X/804/2/146 | s2cid=33401607 }}

}}

{{Starbox catalog

|names={{odlist | F=60 Her | BD=+12° 3142 | FK5=635 | HD=154494 | HIP=83613 | HR=6355 | SAO=102584 }}{{cite simbad | title=60 Her | access-date=2019-06-14 }}

}}

{{Starbox reference

| Simbad=60+Her

}}

{{Starbox end}}

60 Herculis is a single{{cite journal | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | title=A catalogue of multiplicity among bright stellar systems | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869–879 | date=September 2008 | doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | s2cid=14878976 }} star located 134 light years away from the Sun in the northern constellation of Hercules, and is positioned just seven{{cite journal | title=Spitzer Limits on Dust Emission and Optical Gas Absorption Variability around Nearby Stars with Edge-on Circumstellar Disk Signatures | last1=Redfield | first1=Seth | last2=Kessler-Silacci | first2=Jacqueline E. | last3=Cieza | first3=Lucas A. | journal=The Astrophysical Journal | volume=661 | issue=2 | pages=944–971 | display-authors=1 | date=June 2007 | doi=10.1086/517516 | arxiv=astro-ph/0703089 | bibcode=2007ApJ...661..944R | s2cid=42241365 }} degrees away from Rasalgethi (Alpha Herculis). It is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 4.871. This star is moving closer to the Earth with a heliocentric radial velocity of −4 km/s.

Abt and Morrell (1995) assigned this star a stellar classification of A3V, matching an ordinary A-type main-sequence star. However, earlier studies gave it a luminosity class of IV, which suggested it is a subdwarf star. It has a projected rotational velocity of 117 km/s, which is creating an equatorial bulge that is 5% larger than the star's polar radius.{{citation | last1=van Belle | first1=Gerard T. | title=Interferometric observations of rapidly rotating stars | journal=The Astronomy and Astrophysics Review | volume=20 | issue=1 | page=51 | doi=10.1007/s00159-012-0051-2 | bibcode=2012A&ARv..20...51V | arxiv=1204.2572 | postscript=. |date=March 2012| s2cid=119273474 }} The star is 327 million years old with 1.9 times the Sun's mass. It is radiating 17 times the luminosity of the Sun from its photosphere at an effective temperature of 8,299 K.