Kappa2 Lupi

{{other stars by Bayer designation|Kappa Lupi{{!}}κ Lupi}}

{{Starbox observe

| epoch = J2000

| constell = Lupus

| ra = {{RA|15|11|57.67549}}

| dec = {{DEC|−48|44|37.3397}}

| appmag_v = 5.70

}}

{{Starbox character

| type =

| class = A3/5V or A3IV

| b-v = {{Val|+0.144|0.008}}

| u-b =

| variable =

}}

{{Starbox astrometry

| radial_v = {{Val|+0.0|3.7}}

| prop_mo_ra = −98.451

| prop_mo_dec = −43.845

| parallax = 18.0050

| p_error = 0.1136

| parallax_footnote =

| absmag_v =

}}

{{Starbox detail

| mass =

| radius =

| metal_fe = −0.01

| rotation =

| gravity =

| age =

| luminosity =

| temperature =

| rotational_velocity = {{Val|160.4|1.0}}

}}

{{Starbox catalog

| names = {{odlist | B=κ² Lup | BD=−48°9705 | HD=134482 | HIP=74380 | HR=5647 | SAO=225526 }}

}}

{{Starbox reference

| Simbad = Kap02+lup

}}

κ² Lupi, Latinized as Kappa² Lupi, is a white-hued star in the southern constellation of Lupus, and forms a double star with Kappa¹ Lupi. It is visible to the naked eye as a dim point of light with an apparent visual magnitude is 5.64. This star is located around 181 light years distant from the Sun. It is an A-type main-sequence star with a stellar classification of A3/5V. However, Levato (1973) classed the star as A3IV, which would suggest it is already evolving off the main sequence. The star has a high rotation rate, showing a projected rotational velocity of 160 km/s.

References

{{reflist|refs=

{{citation

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| journal=Astronomy Letters | postscript=.

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| bibcode=2012AstL...38..331A | arxiv=1108.4971

| doi=10.1134/S1063773712050015 | s2cid=119257644 }}

{{citation

| last1=Houk | first1=Nancy

| title=Michigan catalogue of two-dimensional spectral types for the HD stars

| volume=2 | location=Ann Arbor

| publisher=Dept. of Astronomy, University of Michigan | year=1978

| bibcode=1978mcts.book.....H | postscript=. }}

{{citation

| title=Metallicity calibrations for dwarf stars and giants in the Geneva photometric system

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| bibcode=2017MNRAS.469.3042N | s2cid=119034918 | postscript=. }}

{{citation

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| title=Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ˜55000 stars and mean radial velocities of 516 Galactic open clusters and associations

| journal=Astronomische Nachrichten

| volume=328 | issue=9 | pages=889 | year=2007

| doi=10.1002/asna.200710776 | arxiv=0705.0878

| bibcode=2007AN....328..889K | s2cid=119323941 | postscript=. }}

{{citation

| last1=Díaz | first1=C. G. | last2=González | first2=J. F.

| last3=Levato | first3=H. | last4=Grosso | first4=M.

| title=Accurate stellar rotational velocities using the Fourier transform of the cross correlation maximum

| display-authors=1 | journal=Astronomy & Astrophysics

| volume=531 | page=A143 |date=July 2011

| doi=10.1051/0004-6361/201016386 | bibcode=2011A&A...531A.143D

| arxiv=1012.4858 | s2cid=119286673 | postscript=. }}