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- References
{{DISPLAYTITLE:Mu1 Gruis}}{{other stars by Bayer designation|Mu Gruis{{!}}μ Gruis}}{{Starbox begin
| name = Mu1 Gruis
}}{{Starbox observe
| epoch = J2000.0
| equinox = J2000.0 (ICRS)
| constell = Grus
| ra = {{RA|22|15|36.92125}}
| dec = {{DEC|−41|20|48.1042}}
| appmag_v = 4.79[3] {{nowrap|(5.20 + 6.68)}}[4]
}}{{Starbox character
| class = {{nowrap|G8 III + G}}[5]
| b-v = +0.80[3]
| u-b = +0.47[3]
| r-i =
| variable =
}}{{Starbox astrometry
| radial_v = {{Val|−7.20|1.78}}[8]
| prop_mo_ra = +47.01
| prop_mo_dec = +22.50
| parallax = 11.87
| p_error = 0.43
| parallax_footnote =
| absmag_v = +0.17[12]
}}{{Starbox detail
| source =
| mass =
| radius =
| luminosity = 88[12]
| temperature =
| gravity =
| metal_fe =
| rotational_velocity =
| age_gyr =
}}{{Starbox catalog
| names = {{odlist | B=μ1 Gru | CD=−41° 14810 | FK5=3777 | HD=211088 | HIP=109908 | HR=8486 | SAO=231055 | WDS=J22156-4121 }}[14]
}}{{Starbox reference
| Simbad = mu.01+Gru
}}{{starbox end}}Mu1 Gruis, Latinized from μ1 Gruis, is a binary star[4] system in the southern constellation of Grus. It is visible to the naked eye with a combined apparent visual magnitude of 4.79.[3] The distance to this system, as determined using an annual parallax shift of 11.44 mas as seen from the Earth,[ is around 275 light years. The yellow-hued primary component is an evolved giant star with stellar classification of G III[5] and visual magnitude 5.20.[4] The secondary is magnitude 6.68 G-type star.[4]]References1. ^1 2 {{citation | 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 | doi=10.1134/S1063773712050015 | arxiv=1108.4971 | postscript=. }}
2. ^1 2 3 4 {{citation | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | title=A catalogue of multiplicity among bright stellar systems | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869–879 | date=September 2008 | bibcode=2008MNRAS.389..869E | doi=10.1111/j.1365-2966.2008.13596.x | arxiv=0806.2878 | postscript=. }}
3. ^1 {{citation | display-authors=1 | last1=Kharchenko | first1=N. V. | last2=Scholz | first2=R.-D. | last3=Piskunov | first3=A. E. | last4=Röser | first4=S. | last5=Schilbach | first5=E. | 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=889–896 | year=2007 | bibcode=2007AN....328..889K | doi=10.1002/asna.200710776 | arxiv=0705.0878 | postscript=. }}
4. ^1 2 {{citation | last1=Houk | first1=N. | title=Michigan catalogue of two-dimensional spectral types for the HD stars | volume=2 | date=1978 | postscript=. | publisher=Dept. of Astronomy, University of Michigan | bibcode=1978mcts.book.....H }}
5. ^1 2 3 4 {{citation | display-authors=1 | last1=Johnson | first1=H. L. | last2=Iriarte | first2=B. | last3=Mitchell | first3=R. I. | last4=Wisniewskj | first4=W. Z. | title=UBVRIJKL photometry of the bright stars | journal=Communications of the Lunar and Planetary Laboratory | volume=4 | issue=99 | year=1966 | bibcode=1966CoLPL...4...99J | postscript=. }}
6. ^1 {{cite simbad | title=mu.01 Gru | accessdate=2017-06-26 | postscript=. }}
[1][2][3][4][5][6]
}}{{Stars of Grus|state=collapsed}} 7 : G-type giants|Grus (constellation)|Bayer objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects|Durchmusterung objects |