:omega Boötis

{{Starbox observe

| epoch = J2000.0

| equinox = J2000.0 (ICRS)

| constell = Boötes

| ra = {{RA|15|02|06.50880}}

| dec = {{DEC|+25|00|29.2997}}

| appmag_v = +4.82

}}

{{Starbox character

| class = K4 III

| b-v = +1.50

| u-b = +1.83

| variable =

}}

{{Starbox astrometry

| radial_v = {{Val|+12.50|0.15}}

| prop_mo_ra = {{val|-5.535}}

| prop_mo_dec = {{val|-49.18}}

| pm_footnote =

| parallax = 8.5271

| p_error = 0.1118

| parallax_footnote =

| absmag_v = −0.41

}}

{{Starbox detail

| source =

| mass = 1.65

| radius = {{val|38.51|1.09}}

| luminosity = {{val|340|12}}

| temperature = {{val|3994|56|fmt=commas}}

| gravity = {{Val|1.37|0.06}}

| metal_fe = {{Val|-0.10|0.03}}

| rotational_velocity =

| age_gyr = 2.99

}}

{{Starbox catalog

| names = {{odlist | B=ω Boo | F=41 Boötis | BD=+25°2861 | FK5=3185 | HD=133124 | HIP=73568 | HR=5600 | SAO=83624 }}

}}

{{Starbox reference

| Simbad = ome+Boo

}}

Omega Boötis, its name Latinized from ω Boötis, is a solitary, orange-hued star in the northern constellation of Boötes. It is a dim star but visible to the naked eye with an apparent visual magnitude of +4.82. Based upon an annual parallax shift of {{val|8.53|ul=mas}} as seen from the Earth, it is located about 382 light years from the Sun. The star is drifting further away with a radial velocity of +12.5 km/s.

This star is three billion years old with a stellar classification of K4 III, matching an evolved K-type giant star that has consume the supply of hydrogen at its core. It has an estimated 1.65 times the mass of the Sun and has expanded to 39 times the Sun's radius. The star is radiating 340 times the Sun's luminosity from its photosphere at an effective temperature of about 3,994 K.

References

{{reflist|refs=

{{Citation |last=Soubiran |first=C. |last2=Creevey |first2=O. L. |last3=Lagarde |first3=N. |last4=Brouillet |first4=N. |last5=Jofré |first5=P. |last6=Casamiquela |first6=L. |last7=Heiter |first7=U. |last8=Aguilera-Gómez |first8=C. |last9=Vitali |first9=S. |last10=Worley |first10=C. |last11=de Brito Silva |first11=D. |date=2024-02-01 |title=Gaia FGK benchmark stars: Fundamental Teff and log g of the third version |bibcode=2024A&A...682A.145S |journal=Astronomy and Astrophysics |volume=682 |pages=A145 |doi=10.1051/0004-6361/202347136 |issn=0004-6361}} [https://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/A%2BA/682/A145&HIP=HIP73568 Omega Boötis' database entry] at VizieR.

{{citation

| last1=Luck | first1=R. Earle | last2=Heiter | first2=Ulrike

| title=Giants in the Local Region

| journal=The Astronomical Journal

| volume=133 | issue=6 | pages=2464–2486 | date=June 2007

| doi=10.1086/513194 | bibcode=2007AJ....133.2464L | doi-access=free }}

{{citation

| 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

| postscript=. |arxiv = 0806.2878 | s2cid=14878976 }}

{{citation

| title=Abundances in the Local Region. I. G and K Giants

| journal=The Astronomical Journal

| last1=Luck | first1=R. Earle

| volume=150 | issue=3 | pages=88 | year=2015

| bibcode=2015AJ....150...88L | doi=10.1088/0004-6256/150/3/88

| arxiv=1507.01466 | s2cid=118505114

| postscript=. }}

{{citation | postscript=.

| last1=Jennens | first1=P. A. | last2=Helfer | first2=H. L.

| title=A new photometric metal abundance and luminosity calibration for field G and K giants

| journal=Monthly Notices of the Royal Astronomical Society

| volume=172 | issue=3 | pages=667–679 | date=September 1975

| bibcode=1975MNRAS.172..667J | doi=10.1093/mnras/172.3.667 | doi-access=free }}

{{citation

| last1=Morgan | first1=W. W. | last2=Keenan | first2=P. C.

| title=Spectral Classification

| journal=Annual Review of Astronomy and Astrophysics

| volume=11 | page=29 | year=1973 | postscript=.

| doi=10.1146/annurev.aa.11.090173.000333 | bibcode=1973ARA&A..11...29M }}

{{cite simbad

| title=ome Boo | access-date=2017-09-09 }}

}}

External links

{{citation

| author1=Hoffleit|display-authors=etal| year=1991 | title=HR 5600

| work=Bright Star Catalogue | edition=5th Revised

| url=http://webviz.u-strasbg.fr/viz-bin/VizieR-S?HR%205600

| access-date=2017-09-11 | postscript=. }}

{{citation

| url=http://aladin.u-strasbg.fr/AladinPreview?-c=15+02+06.5083%2B25+00+29.298&ident=*+ome+Boo&submit=Aladin+previewer

| title=ome Boo | work=Aladin previewer

| publisher=Centre de Données astronomiques de Strasbourg

| access-date=2017-09-11 | postscript=. }}

Category:K-type giants

Bootis, Omega

Category:Boötes

Category:Durchmusterung objects