11 Boötis

{{Short description|High proper motion white-hued star in the constellation Boötes}}

{{Starbox observe

| epoch = J2000.0

| constell = Boötes

| ra = {{RA|14|01|10.48072}}

| dec = {{DEC|+27|23|11.7452}}

| appmag_v = 6.23

}}

{{Starbox character

| class = A7 III

| b-v = {{Val|0.193|0.004}}

| u-b =

| variable =

}}

{{Starbox astrometry

| radial_v = {{Val|−24.0|4.3}}

| prop_mo_ra = −78.929

| prop_mo_dec = +18.638

| parallax = 9.8333

| p_error = 0.0866

| parallax_footnote =

| absmag_v = 1.44

}}

{{Starbox detail

| mass = 1.67

| radius = 2.6

| gravity = 3.93

| luminosity = 64

| temperature = {{Val|7997|272|fmt=commas}}

| metal = −0.02

| rotation =

| rotational_velocity = 123

| age_myr = 328

}}

{{Starbox catalog

| names = {{odlist | F=11 Boo | HD=122405 | HR=5263 | HIP=68478 | SAO=83130 | BD=+28°2287 }}

}}

{{Starbox reference

| Simbad = 11+Boo

}}

11 Boötis is a giant star in the northern constellation of Boötes, located about 332 light years away from the Sun. It is near the lower limit of visibility to the naked eye, appearing as a dim, white-hued star with an apparent visual magnitude of 6.23. This body is moving closer to the Earth with a heliocentric radial velocity of −24 km/s.

Properties

It has a stellar classification of A7 III, matching an evolved A-type giant star. The star is 328 million years old with a projected rotational velocity of 123 km/s. It has 1.67 times the mass of the Sun and is radiating 64 times the Sun's luminosity from its photosphere at an effective temperature of 7,997 K.

References

{{reflist|refs=

{{cite journal | last1 = Gontcharov | first1 = G. A. | title = Dependence of kinematics on the age of stars in the solar neighborhood | journal = Astronomy Letters | date = December 2012 | volume = 38 | issue = 12 | pages = 771–782 | issn = 1063-7737 | eissn = 1562-6873 | doi = 10.1134/S1063773712120031 | bibcode = 2012AstL...38..771G | arxiv = 1606.08814 | doi-access = free}}

{{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 }}

{{cite journal

| display-authors=1 | last1=Royer | first1=F.

| last2=Grenier | first2=S. | last3=Baylac | first3=M.-O.

| last4=Gómez | first4=A. E. | last5=Zorec | first5=J.

| title=Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i

| journal=Astronomy and Astrophysics

| volume=393 | pages=897–911 | date=October 2002

| doi=10.1051/0004-6361:20020943 | bibcode=2002A&A...393..897R | arxiv=astro-ph/0205255 | s2cid=14070763 }}

{{cite journal

| title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system

| last1=Gontcharov | first1=G. A.

| date=2006 | journal=Astronomy Letters

| volume=32 | issue=11 | pages=759–771

| bibcode=2006AstL...32..759G | arxiv=1606.08053

| doi=10.1134/S1063773706110065 | s2cid=119231169 }}

{{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 | doi=10.1088/0004-637X/804/2/146

| arxiv=1501.03154 | s2cid=33401607 }}

}}

Category:A-type giants

Category:Boötes

Category:Durchmusterung objects