Mu Lupi

{{short description|Multiple star system in the constellation of Lupus}}

{{Starbox begin

| name = Mu Lupi

}}

{{Starbox observe

| epoch = J2000.0

| equinox = J2000.0 (ICRS)

| constell = Lupus

| ra = {{RA|15|18|32.02296}}

| dec = {{DEC|−47|52|30.9957}}

| appmag_v = 4.29

}}

{{Starbox character

| class = B8 Ve

| b-v = −0.03

| u-b = −0.41

| r-i =

| variable =

}}

{{Starbox astrometry

| radial_v = {{Val|+14.90|1.78}}

| prop_mo_ra = −29.59

| prop_mo_dec = −35.07

| parallax = 9.72

| p_error = 0.71

| parallax_footnote =

| absmag_v = −0.57

}}

{{Starbox detail

| source =

| mass = {{Val|4.42|0.20}}

| radius =

| luminosity = 603

| temperature = {{Val|13470|500|fmt=commas}}

| gravity = {{Val|3.80|0.10}}

| metal_fe =

| rotational_velocity = {{Val|280|20}}

| age_myr = 112

}}

{{Starbox catalog

| names = μ Lup, CD−47°9860, FK5 , HD 135734, HIP 74911, HR 5683, SAO 225638, WDS J15185-4753AB

}}

{{Starbox reference

| Simbad = mu+Lup

}}

Mu Lupi (μ Lup) is a system of three or four stars in the southern constellation of Lupus. It is visible to the naked eye with an apparent visual magnitude of 4.29 and lies roughly 340 light-years from the Sun.

Two of the components of this system, A and B, form a pair with an angular separation of 1.1 arcseconds. As of 2014, no orbit has been published. Component C lies at an angular separation of 22.6 arcseconds from the AB pair, and may be a common proper motion companion. It is an A-type main-sequence star with a classification of A2 V. A fourth component at an angular separation of 6.15 arcseconds from component A, may be a brown dwarf.

References

{{reflist|refs=

{{citation

| title=Validation of the new Hipparcos reduction

| last1=van Leeuwen | first1=F.

| journal=Astronomy and Astrophysics

| volume=474 | issue=2 | pages=653–664 | date=2007

| arxiv=0708.1752 | bibcode=2007A&A...474..653V

| doi=10.1051/0004-6361:20078357 | s2cid=18759600 | postscript=. }}

{{citation

| title=Search for low-mass PMS companions around X-ray selected late B stars

| last1=Hubrig | first1=S. | last2=Le Mignant | first2=D.

| last3=North | first3=P. | last4=Krautter | first4=J.

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

| volume=372 | pages=152–164 | date=June 2001

| doi=10.1051/0004-6361:20010452 | bibcode=2001A&A...372..152H

| arxiv=astro-ph/0103201 | s2cid=17507782 | postscript=. }}

{{citation

| title=Spectroscopic study of early-type multiple stellar systems. II. New binary subsystems

| last1=Veramendi | first1=M. E. | last2=González | first2=J. F.

| journal=Astronomy & Astrophysics

| volume=567 | id=A35 | pages=10 | date=July 2014

| doi=10.1051/0004-6361/201423736 | bibcode=2014A&A...567A..35V

| postscript=. |arxiv = 1405.1084 | s2cid=21711755 }}

{{citation

| last1=Levenhagen | first1=R. S. | last2=Leister | first2=N. V.

| title=Spectroscopic analysis of southern B and Be stars

| journal=Monthly Notices of the Royal Astronomical Society

| volume=371 | pages=252–262 | year=2006

| issue=1 | bibcode=2006MNRAS.371..252L | doi=10.1111/j.1365-2966.2006.10655.x

| doi-access=free | arxiv=astro-ph/0606149 | s2cid=16492030 | postscript=. }}

{{citation

| last1=Mermilliod | first1=J.-C.

| title=Compilation of Eggen's UBV data, transformed to UBV (unpublished)

| journal=Catalogue of Eggen's UBV Data

| year=1986 | publisher=SIMBAD

| bibcode=1986EgUBV........0M | postscript=. }}

{{citation

| last1=de Bruijne | first1=J. H. J. | last2=Eilers | first2=A.-C.

| title=Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project

| journal=Astronomy & Astrophysics

| volume=546 | id=A61 | pages=14 | date=October 2012

| doi=10.1051/0004-6361/201219219 | bibcode=2012A&A...546A..61D

| arxiv=1208.3048 | s2cid=59451347 | postscript=. }}

{{cite simbad

| title=* mu. Lup -- Be Star

| access-date=2017-03-08 | postscript=. }}

}}

Category:B-type main-sequence stars

Category:Lupus (constellation)