HD 176051

{{short description|Spectroscopic binary star system in the constellation of Lyra}}

{{Starbox begin

| name=HD 176051 }}

{{Starbox observe

| epoch=J2000

| ra={{RA|18|57|01.60985}}{{cite journal

| 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 }}

| dec={{DEC| +32|54|04.5723}}

| appmag_v=5.22

| constell=Lyra }}

{{Starbox character

| class={{nowrap|G0 V + K1 V}}{{cite journal

| author=Muterspaugh, Matthew W.| display-authors=etal

| title=Limits to tertiary astrometric companions in binary systems

| journal=The Astrophysical Journal | volume=653

| issue=2 | pages=1469–1479 | date=2006

| doi=10.1086/508743 | bibcode=2006ApJ...653.1469M|arxiv = astro-ph/0608640 | s2cid=15218103

}}

| b-v=+0.570{{cite journal

| author=Rakos, K. D.| display-authors=etal | title=Photometric and astrometric observations of close visual binaries

| journal=Astronomy and Astrophysics Supplement Series

| volume=47 |date=February 1982 | pages=221–235

| bibcode=1982A&AS...47..221R }}

| u-b=+0.029

| variable=

}}

{{Starbox astrometry

| radial_v=−47.2{{cite journal

| author=Wilson, R. E. | date=1953 | title=General Catalogue of Stellar Radial Velocities

| journal=Carnegie Institute Washington D.C. Publication | publisher=Carnegie Institute

| location=Washington D.C. | bibcode=1953GCRV..C......0W }}

| prop_mo_ra=+201.96

| prop_mo_dec=−145.46

| parallax=67.24

| p_error=0.37

| parallax_footnote=

| absmag_v=4.34{{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 | s2cid=119257644 | postscript=. }}[https://vizier.u-strasbg.fr/viz-bin/VizieR-5?-ref=VIZ608263eb12b973&-out.add=.&-source=V/137D/XHIP&recno=92705 VizieR] }}

{{Starbox orbit

| reference = {{citation

| display-authors=1 | last1=Pourbaix | first1=D.

| last2=Tokovinin | first2=A. A. | last3=Batten | first3=A. H.

| last4=Fekel | first4=F. C. | last5=Hartkopf | first5=W. I.

| last6=Levato | first6=H. | last7=Morrell | first7=N. I.

| last8=Torres | first8=G. | last9=Udry | first9=S.

| year=2004 | pages=727–732 | volume=424

| title=SB9: The Ninth Catalogue of Spectroscopic Binary Orbits

| journal=Astronomy & Astrophysics | bibcode=2004A&A...424..727P

| doi=10.1051/0004-6361:20041213 | postscript=. | arxiv=astro-ph/0406573| s2cid=119387088 }}[https://vizier.u-strasbg.fr/viz-bin/VizieR?-source=V/122 VizierR (obsoleted)]

| period_unitless = 22,423 d

| axis_unitless = 19.1 AU

| eccentricity = 0.25 (0.27 or 0.54{{cite journal|last1=Simonetti|first1=Paolo|last2=Vladilo|first2=Giovanni|last3=Silva|first3=Laura|last4=Sozzetti|first4=Alessandro|display-authors=1|title=Statistical Properties of Habitable Zones in Stellar Binary Systems|journal=The Astrophysical Journal|volume=903|issue=2|year=2020|pages=141|arxiv=2010.05585|doi=10.3847/1538-4357/abc074|bibcode=2020ApJ...903..141S |s2cid=222291409 |doi-access=free }})

| inclination =

| periarg = 102

| k1 = 3.51

| k2 = 0.74

}}

{{Starbox detail

| component1 = HD 176051 A

| mass=1.07

| radius=1.06{{cite journal|last1=Johnson|first1=H. M.|last2=Wright|first2=C. D.|display-authors=1|title=Predicted infrared brightness of stars within 25 parsecs of the sun|journal=The Astrophysical Journal Supplement Series|volume=53|year=1983|pages=643|bibcode=1983ApJS...53..643J|doi=10.1086/190905|doi-access=free}}"VizieR−GJ [https://vizier.u-strasbg.fr/viz-bin/VizieR-5?-ref=VIZ60826212120fd1&-out.add=.&-source=II/224/cadars&recno=8595 738A]/[https://vizier.u-strasbg.fr/viz-bin/VizieR-5?-ref=VIZ60826212120fd1&-out.add=.&-source=II/224/cadars&recno=8594 738B]"

| luminosity=1.65

| temperature=6,000{{cite journal

| last1=Luck | first1=R. E.| last2=Heiter | first2=U.

| title=Dwarfs in the local region

| journal=Astronomical Journal | volume=131

| issue=6 | pages=3069–3092 | date=2006

| doi=10.1086/504080 | bibcode=2006AJ....131.3069L| doi-access=free}}

| metal_fe=−0.11

| rotation=

| gravity=4.60

| age_gyr=8.1{{cite journal

| author=Holmberg, J.| display-authors=etal | date=2007

| title=The Geneva-Copenhagen survey of the Solar neighbourhood. II. New uvby calibrations and rediscussion of stellar ages, the G dwarf problem, age-metallicity diagram, and heating mechanisms of the disk

| journal=Astronomy & Astrophysics | pages=519–537

| arxiv=0707.1891 | bibcode=2007A&A...475..519H

| volume=475 | issue=2 | doi=10.1051/0004-6361:20077221 | s2cid=119054949 }}

| component2 = HD 176051 B

| mass2=0.71

| radius2=0.81

}}

{{Starbox catalog

| names=ADS 11871, HR 7162, BD+32°3267, GJ 738, HD 176051, LTT 15567, SAO 67612, HIP 93017.{{cite web

| title=Simbad Query Result: HD 176051 -- Spectroscopic binary | publisher=Centre de Données astronomiques de Strasbourg | work=Simbad | url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HR+7162&submit=SIMBAD+search

| access-date=2009-05-07 }} }}

{{Starbox reference

| Simbad = HD+176051|sn = AB

| Simbad2 = HD+176051A|sn2 = A

| Simbad3 = HD+176051B|sn3 = B

| NSTED = HD+176051

| ARICNS = 01526

| ARICNS2 = 01527

}}

Extrasolar Planets
Encyclopaedia[https://exoplanet.eu/catalog/hd_176051_b--752/ data]

{{Starbox end}}

HD 176051 is a spectroscopic binary star system approximately 49 light years away from Earth in the constellation Lyra. The pair orbit with a period of 22,423 days (61.4 years) and an eccentricity of 0.25. Compared to the Sun, they have a somewhat lower proportion of elements more massive than helium. Their individual masses are estimated at 1.07 and 0.71 solar masses ({{Solar mass|link=y}}). The system is moving closer to the Sun with a radial velocity of −47 km/s and will reach perihelion in about 269,000 years when it comes within roughly {{Convert|5.1|pc|ly|order=flip|abbr=on}} of the Sun.{{citation | title=Close encounters of the stellar kind | last1=Bailer-Jones | first1=C. A. L. | journal=Astronomy & Astrophysics | volume=575 | id=A35 | pages=13 | date=March 2015 | doi=10.1051/0004-6361/201425221 | bibcode=2015A&A...575A..35B | arxiv=1412.3648 | s2cid=59039482 | postscript=. }}