Mu1 Octantis

{{Short description|Star in the constellation of Octans}}

{{DISPLAYTITLE:Mu1 Octantis}}

{{other stars by Bayer designation|Mu Octantis{{!}}μ Octantis}}

{{Starbox begin

| name = μ1 Octantis

}}

{{Starbox observe

| epoch = J2000.0 (ICRS)

| constell = Octans

| ra = {{RA|20|42|02.9873}}

| dec = {{DEC|-76|10|50.131}}

| appmag_v = 5.98 ± 0.01

}}

{{Starbox character

| class = F6 II/III

| b-v = +0.44

| u-b = +0.11

}}

{{Starbox astrometry

| radial_v = −36 ± 4

| parallax = 9.7399

| p_error = 0.0241

| prop_mo_ra = +190.891

| prop_mo_dec = −9.479

| absmag_v = +0.97

| parallax_footnote =

}}

{{Starbox detail

| mass = {{val|1.36|0.26|0.19}}

| radius = {{val|4.68|0.15|0.32}}

| luminosity = 34.3

| temperature = 6,521

| gravity = {{val|3.23|0.11|0.07}}

| metal_fe = +0.19

| rotational_velocity =

| age_myr = 900

}}

{{Starbox catalog

| names = {{odlist|B = μ1 Oct|Gould = 50 G. Octantis|LTT = 8161|CD = −76°1054|CPD = −76°1434|GC = 28731|HD = 196051|HIP = 102162|HR = 7863|SAO = 257838}}

}}

{{Starbox reference

| Simbad = mu.01+Oct

}}

{{Starbox end}}

Mu1 Octantis, Latinized from μ1 Octantis, is a solitary star in the southern circumpolar constellation Octans. It has an apparent magnitude of 5.98, allowing it to be faintly visible to the naked eye under ideal conditions. Located 335 light years away, it is approaching the Sun with a heliocentric radial velocity of {{val|-36|ul=km/s}}.

This object is an F-type star with the blended luminosity class of a giant star and a bright giant. At present it has 1.36 times the mass of the Sun but has expanded to 4.68 times its girth. It radiates at {{val|34.3|ul=solar luminosity}} from its enlarged photosphere at an effective temperature of 6,521 K, giving it a yellow white glow. Mu1 Octantis is metal enriched and has an age of 900 million years.

References

{{reflist||refs=

{{Cite Gaia EDR3|6369246529272113920}}

{{cite journal |last1=Høg |first1=E. |last2=Fabricius |first2=C. |last3=Makarov |first3=V. V. |last4=Urban |first4=S. |last5=Corbin |first5=T. |last6=Wycoff |first6=G. |last7=Bastian |first7=U. |last8=Schwekendiek |first8=P. |last9=Wicenec |first9=A. |title=The Tycho-2 catalogue of the 2.5 million brightest stars |journal=Astronomy and Astrophysics |date=March 2000 |volume=355 |pages=L27–L30 |issn=0004-6361 |bibcode=2000A&A...355L..27H}}

{{cite book|last1=Houk |first1=N. |last2=Cowley |first2=A. P. |title=University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0. |date=1975 |bibcode=1975mcts.book.....H }}

{{cite journal |last1=Johnson |first1=H. L. |last2=Mitchell |first2=R. I. |last3=Iriarte |first3=B. |last4=Wisniewski |first4=W. Z. |title=UBVRIJKL Photometry of the Bright Stars |journal=Communications of the Lunar and Planetary Laboratory |date=1 January 1966 |volume=4 |pages=99–110 |bibcode=1966CoLPL...4...99J}}

{{cite journal |last1=Gontcharov |first1=G. A. |title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system |journal=Astronomy Letters |date=November 2006 |volume=32 |issue=11 |pages=759–771 |doi=10.1134/S1063773706110065 |issn=1063-7737 |bibcode=2006AstL...32..759G |arxiv=1606.08053|s2cid=119231169 }}

{{cite journal |last1=Anderson |first1=E. |last2=Francis |first2=Ch. |title=XHIP: An extended hipparcos compilation |journal=Astronomy Letters |date=May 2012 |volume=38 |issue=5 |pages=331–346 |doi=10.1134/S1063773712050015 |language=en |issn=1063-7737 |bibcode=2012AstL...38..331A |arxiv=1108.4971|s2cid=255204555 }}

{{cite journal |bibcode=2017MNRAS.471..770M |title=Fundamental parameters and infrared excesses of Tycho-Gaia stars |last1=McDonald |first1=I. |last2=Zijlstra |first2=A. A. |last3=Watson |first3=R. A. |journal=Monthly Notices of the Royal Astronomical Society |year=2017 |volume=471 |issue=1 |page=770 |doi=10.1093/mnras/stx1433 |arxiv=1706.02208 |doi-access=free}}

{{cite journal |display-authors=1 |last1=Stassun |first1=Keivan G. |last2=Oelkers |first2=Ryan J. |last3=Paegert |first3=Martin |last4=Torres |first4=Guillermo |last5=Pepper |first5=Joshua |last6=Lee |first6=Nathan De |last7=Collins |first7=Kevin |last8=Latham |first8=David W. |last9=Muirhead |first9=Philip S. |last10=Chittidi |first10=Jay |last11=Rojas-Ayala |first11=Bárbara |last12=Fleming |first12=Scott W. |last13=Rose |first13=Mark E. |last14=Tenenbaum |first14=Peter |last15=Ting |first15=Eric B. |last16=Kane |first16=Stephen R. |last17=Barclay |first17=Thomas |last18=Bean |first18=Jacob L. |last19=Brassuer |first19=C. E. |last20=Charbonneau |first20=David |last21=Ge |first21=Jian |last22=Lissauer |first22=Jack J. |last23=Mann |first23=Andrew W. |last24=McLean |first24=Brian |last25=Mullally |first25=Susan |last26=Narita |first26=Norio |last27=Plavchan |first27=Peter |last28=Ricker |first28=George R. |last29=Sasselov |first29=Dimitar |last30=Seager |first30=S. |last31=Sharma |first31=Sanjib |last32=Shiao |first32=Bernie |last33=Sozzetti |first33=Alessandro |last34=Stello |first34=Dennis |last35=Vanderspek |first35=Roland |last36=Wallace |first36=Geoff |last37=Winn |first37=Joshua N. |title=The Revised TESS Input Catalog and Candidate Target List |journal=The Astronomical Journal |date=9 September 2019 |volume=158 |issue=4 |pages=138 |doi=10.3847/1538-3881/ab3467 |issn=0004-6256 |bibcode=2019AJ....158..138S |arxiv=1905.10694 |doi-access=free}}

{{cite journal |last1=Holmberg |first1=J. |last2=Nordström |first2=B. |last3=Andersen |first3=J. |title=The Geneva-Copenhagen survey of the solar neighbourhood: III. Improved distances, ages, and kinematics |journal=Astronomy & Astrophysics |date=July 2009 |volume=501 |issue=3 |pages=941–947 |doi=10.1051/0004-6361/200811191 |issn=0004-6361 |bibcode=2009A&A...501..941H |arxiv=0811.3982 |doi-access=free}}

}}

{{Octans}}

Category:Octans

Category:F-type giants

Category:F-type bright giants

Octantis, Mu1

Octantis, 50

Category:Durchmusterung objects

196051

102162

7863