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{{Starbox begin
| name = Gamma Mensae
}}{{Starbox observe
| epoch = J2000.0
| equinox = J2000.0 (ICRS)
| constell = Mensa
| ra = {{RA|05|31|53.01393}}
| dec = {{DEC|−76|20|27.4779}}
| appmag_v = 5.19[3]
}}{{Starbox character
| class = K2 III[4][5]
| b-v = +1.13[3]
| u-b = +1.18[3]
| variable =
}}{{Starbox astrometry
| radial_v = {{Val|+56.7|0.8}}[8]
| prop_mo_ra = +140.646[9]
| prop_mo_dec = +269.634[9]
| parallax = 31.1021
| p_error = 0.1519
| parallax_footnote = [1]
| absmag_v = +2.70[12]
}}{{Starbox orbit
| reference = [13]
| period = {{Val|7.455|4.857}}
| axis = {{Val|51|10}}
| eccentricity = {{Val|0.59|0.15}}
| inclination = {{Val|53|8}}
| node = {{Val|117|90}}
| periastron = {{Val|1995.111|4.085}}
| periarg = {{Val|124|74}}
}}{{Starbox detail
| source = [14]
| component1 = γ Men A
| mass = 1.04
| radius = 4.99
| luminosity = 21
| temperature = 4,491[4]
| gravity = 2.76[4]
| metal_fe = +0.22
| rotational_velocity =
| age_gyr = 10.60
}}{{Starbox catalog
| names = {{odlist | B=γ Men | CD=−76° 222 | FK5=| HD=37763 | HIP=25918 | HR=1953 | SAO=256201 }}[17]
}}{{Starbox reference
| Simbad = gam+men
}}{{Starbox end}}Gamma Mensae, Latinized from γ Mensae, is an orange-hued star system in the southern constellation of Mensa. The apparent visual magnitude of 5.19[3] indicates it is dimly visible to the naked eye. Based upon an annual parallax shift of 7.70 mas as seen from the Earth,[ it is about 102 light years from the Sun. At that distance, the visual magnitude is diminished by an extinction factor of 0.033 due to interstellar dust.[14] The system shows the high velocity kinematic properties of a population II star, but has Sun-like abundances of most elements.[21]]This is a probable astrometric binary system[5] with poorly constrained orbital elements. The visible member, component A, is an evolved K-type giant star with a stellar classification K2 III[4] At about 10.6 billion years of age, it has nearly the same mass as the Sun but has expanded to five times the Sun's radius.[14] The star shines with 21 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,491 K.[4] References1. ^1 2 {{cite DR2}}
2. ^1 {{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=. }}
3. ^1 {{citation | title=Detailed analysis of high velocity stars | last1=Foy | first1=R. | journal=Astronomy and Astrophysics | volume=85 | issue=3 | date=May 1980 | pages=287–294 | bibcode=1980A&A....85..287F | postscript=. }}
4. ^1 {{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 | postscript=. }}
5. ^1 {{citation | display-authors=1 | last=Hartkopf | first=W. I. | last2=Mason | first2=B. D. | last3=Worley | first3=C. E. | date=June 30, 2006 | title=Sixth Catalog of Orbits of Visual Binary Stars | publisher=United States Naval Observatory | url=http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/wds/orb6 | accessdate=2017-06-02 | postscript=. }}
6. ^1 2 {{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 | doi=10.1111/j.1365-2966.2008.13596.x | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | postscript=. }}
7. ^1 2 3 {{citation | title=The Pan-Pacific Planet Search. V. Fundamental Parameters for 164 Evolved Stars | last1=Wittenmyer | first1=Robert A. | last2=Liu | first2=Fan | last3=Wang | first3=Liang | last4=Casagrande | first4=Luca | last5=Johnson | first5=John Asher | last6=Tinney | first6=C. G. | journal=The Astronomical Journal | postscript=. | volume=152 | issue=1 | id=19 | pages=15 | date=July 2016 | doi=10.3847/0004-6256/152/1/19 | bibcode=2016AJ....152...19W |arxiv = 1605.00323 }}
8. ^1 2 3 4 5 {{citation | display-authors=1 | last1=Gray | first1=R. O. | last2=Corbally | first2=C. J. | last3=Garrison | first3=R. F. | last4=McFadden | first4=M. T. | last5=Bubar | first5=E. J. | last6=McGahee | first6=C. E. | last7=O'Donoghue | first7=A. A. | last8=Knox | first8=E. R. | title=Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample | journal=The Astronomical Journal | volume=132 | issue=1 | pages=161–170 | date=July 2006 | doi=10.1086/504637 | bibcode=2006AJ....132..161G | arxiv=astro-ph/0603770 | postscript=. }}
9. ^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=. }}
10. ^1 {{cite simbad | title=gam Men | accessdate=2017-08-16 | postscript=. }}
[2][3][4][5][6][7][8][9][10]
}}{{Stars of Mensa|state=collapsed}} 8 : K-type giants|Astrometric binaries|Mensa (constellation)|Bayer objects|Durchmusterung objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects |