Mu Persei

{{Short description|Star in the constellation Perseus}}

{{Starbox begin}}

{{Starbox image

| image=

{{Location mark

| image=Perseus_IAU.svg

| float=center | width=260 | position=right

| mark=Red circle.svg | mark_width=10 | mark_link=μ Per

| x%=42.5 | y%=39.2

}}

| caption=Location of μ Persei (circled)

}}

{{Starbox observe

| epoch=J2000

| constell=Perseus

| ra={{RA|04|14|53.86253}}{{cite journal|title=Validation of the new Hipparcos reduction|url=http://www.aanda.org/index.php?option=com_article&access=bibcode&Itemid=129&bibcode=2007A%2526A...474..653VFUL|author1=van Leeuwen, F.|display-authors=etal|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}}

| dec={{DEC|+48|24|33.5912}}

| appmag_v=+4.16{{cite journal|bibcode=2002yCat.2237....0D|title=VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system|journal=CDS/ADC Collection of Electronic Catalogues|volume=2237|author1=Ducati, J. R.|year=2002}}

}}

{{Starbox character

| class=G0Ib{{cite journal

| title=The Perkins catalog of revised MK types for the cooler stars

| journal=Astrophysical Journal Supplement Series

| volume=71 | pages=245 | year=1989

| last1=Keenan | first1=Philip C. | last2=McNeil | first2=Raymond C.

| bibcode=1989ApJS...71..245K | doi=10.1086/191373 | s2cid=123149047

}} + B9.5{{cite journal

| title=A Catalog of Galactic Multiple Systems with a Red Supergiant and a B Star

| last1=Pantaleoni González | first1=M. | last2=Maíz Apellániz | first2=J.

| last3=Barbá | first3=R. H. | last4=Negueruela | first4=I.

| journal=Research Notes of the AAS

| volume=4 | issue=1 | id=12 | date=January 2020

| page=12 | doi=10.3847/2515-5172/ab712b | arxiv=2001.11680

| bibcode=2020RNAAS...4...12P | s2cid=211003674 | doi-access=free }}

| b-v={{val|0.935|0.002}}{{citation

| last1=Anderson | first1=E. | last2=Francis | first2=Ch.

| title=XHIP: An extended hipparcos compilation

| journal=Astronomy Letters

| volume=38 | issue=5 | pages=331 | year=2012

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

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

}}

{{Starbox astrometry

| radial_v = 26.46{{cite journal|title=Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants|author1=Soubiran, C.|author2=Bienaymé, O.|author3=Mishenina, T. V.|author4=Kovtyukh, V. V.|journal=Astronomy and Astrophysics|volume=480|issue=1|pages=91–101|date=2008|bibcode=2008A&A...480...91S|doi=10.1051/0004-6361:20078788|arxiv=0712.1370|s2cid=16602121}}

| prop_mo_ra = 5.52

| prop_mo_dec = −17.37

| parallax= 3.62

| p_error=0.20

| parallax_footnote=

| absmag_v = −3.08

}}

{{Starbox orbit

|reference={{cite journal|title=Apparent orbit of μ Persei|author=Alden, Harold L.|journal=Astronomical Journal|volume=36|issue=851|pages=81–82|date=1925|bibcode=1925AJ.....36...81A|doi=10.1086/104676|doi-access=free}}

|period_unitless=284 d

|axis_unitless=18.8 ± 8.8 mas

|inclination=74 ± 24

|node=296 ± 18

|periarg=302

|eccentricity=0.062

|periastron=2,420,062

}}

{{Starbox detail

|radius=~53

|luminosity=~2030

|temperature=5418{{cite journal|title=Parameters and Abundances in Luminous Stars|author=Luck, R. Earle|journal=The Astronomical Journal|volume=147|issue=6|date=2014|page=137|bibcode=2014AJ....147..137L|doi=10.1088/0004-6256/147/6/137|doi-access=free}}

|gravity=1.74

|metal_fe=0.09

|rotational_velocity=12{{cite journal|title=A catalog of rotational and radial velocities for evolved stars. II. Ib supergiant stars|author1=de Medeiros, J. R.|author2=Udry, S.|author3=Burki, G.|author4=Mayor, M.|journal=Astronomy and Astrophysics|volume=395|pages=97–98|date=2002|bibcode=2002A&A...395...97D|doi=10.1051/0004-6361:20021214|url=http://www.aanda.org/articles/aa/pdf/2002/43/aa2890.pdf|doi-access=free}}

}}

{{Starbox catalog

| names={{odlist | B=Mu Per, μ Per | F=51 Persei | BD=+48 1063 | CCDM=J04149+4824A | FK5=1117 | GC=5099 | HD=26630 | HIP=19812 | HR=1303 | NSV=1518 | PPM=46912 | SAO=39404 | WDS=J04149+4825A }}{{cite simbad|title=* mu. Per|accessdate=23 February 2017}}

}}

{{Starbox reference

|Simbad=51+Persei

}}

{{Starbox end}}

Mu Persei, Latinised from μ Persei, is a binary star system in the northern constellation of Perseus. It is visible to the naked eye as a point of light with a combined apparent visual magnitude of +4.16. The distance to this system is approximately 900 light-years based on parallax measurements. It is drifting further away with a radial velocity of +26 km/s.

Mu Persei is a spectroscopic binary with an orbital period of 284 days and an eccentricity of about 0.06. The primary component is a yellow G-type supergiant star. With an effective temperature of about {{Val|5400|fmt=commas|ul=K}} and a radius of 53 solar radii, this star has the luminosity of about 2,030 times that of the Sun.[http://stars.astro.illinois.edu/sow/muper.html MU PER (Mu Persei)] The companion is a B-type star with a class of B9.5

Mu Persei is moving through the galaxy at a speed of 35.6 km/s relative to the Sun. Its projected galactic orbit carries it between 23,900 and 32,400 light-years from the center of the galaxy.[http://www.astrostudio.org/xhip.php?hip=19812 Mu Persei (HIP 19812)] {{webarchive|url=https://archive.today/20130414192323/http://www.astrostudio.org/xhip.php?hip=19812 |date=2013-04-14 }}

Mu Persei came closest to the Sun 5.6 million years ago when it had brightened to magnitude 3.25 from a distance of 600 light-years.