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6 Lyncis

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

{{Starbox begin}}

{{Starbox observe

| epoch = J2000.0

| constell = Lynx

| ra = {{RA|06|30|47.10759}}

| dec = {{DEC|+58|09|45.4798}}

| appmag_v = 5.86

}}

{{Starbox character

| class = {{nowrap|K0.5 IIIb Fe0.5}}

| b-v = {{Val|0.934|0.006}}

}}

{{Starbox astrometry

| radial_v = {{Val|+39.57|0.20}}

| prop_mo_ra = {{val|−30.691}}

| prop_mo_dec = {{val|−338.612}}

| pm_footnote =

| parallax = 18.2183

| p_error = 0.0486

| parallax_footnote =

| absmag_v = 2.13

}}

{{Starbox detail

| mass = {{Val|1.37|0.14}}

| radius = {{Val|5.12|0.16}}

| luminosity = {{Val|14.2|0.9}}

| gravity = {{Val|3.17|0.03}}

| temperature = {{Val|4949|58|fmt=commas}}

| metal_fe = {{Val|−0.18|0.04}}

| rotational_velocity = 1.8

| age_gyr = {{Val|2.8|0.2}}

}}

{{Starbox catalog

| names = {{odlist | F=6 Lyn | BD=+58°932 | HD=45410 | HIP=31039 | HR=2331 | SAO=25771 | GC=8416 }}

}}

{{Starbox reference

| Simbad = 6+Lyn

| NSTED = 6+Lyn

}}

{{Starbox end}}

6 Lyncis is a star in the northern constellation of Lynx, located approximately 179 light years from Earth. It is visible to the naked eye as a dim, orange-hued star with an apparent visual magnitude of 5.86. This object is moving away from the Earth with a heliocentric radial velocity of +40 km/s. It has a relatively high proper motion, traversing the celestial sphere at the rate of 0.341 arc seconds per annum. One exoplanet is known to orbit it.

This is an aging giant star with a stellar classification of {{nowrap|K0.5 IIIb Fe0.5}}, which indicates it has a mild overabundance of iron in its spectrum. At 2.8 billion years old, it has exhausted the hydrogen at its core, causing it to evolve away from the main sequence. As a consequence, it has expanded to 5.12 times the radius of the Sun although it only has 1.37 times the Sun's mass. The star is radiating 14.2 times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,950 K.

Planetary system

In July 2008, the planet 6 Lyncis b was announced by Bun'ei Sato and collaborators from the Okayama Planet Search Program, along with 14 Andromedae b and 81 Ceti b. The planet was found to have minimum mass of 2.4 Jupiter masses and period of 899 days.

{{OrbitboxPlanet begin

| table_ref =

}}

{{OrbitboxPlanet

| exoplanet = b

| mass = {{val|2.010|0.077|p=≥}}

| semimajor = {{val|2.11|0.11}}

| period = {{Val|934.3|8.6}}

| eccentricity = {{Val|0.073|0.036}}

}}

{{Orbitbox end}}

See also

References

{{Reflist|refs=

{{cite journal

| title=Revising the ages of planet-hosting stars

| last1=Bonfanti | first1=A. | last2=Ortolani | first2=S.

| last3=Piotto | first3=G. | last4=Nascimbeni | first4=V.

| display-authors=1 | journal=Astronomy and Astrophysics

| year=2015 | volume=575 | at=A18 | arxiv=1411.4302

| bibcode=2015A&A...575A..18B | doi=10.1051/0004-6361/201424951 | s2cid=54555839 }}

{{Cite Gaia DR3|1004358968092652544}}

{{cite journal

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

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

| journal=Astrophysical Journal Supplement Series

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

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

{{cite journal

| title=Planetary Companions to Evolved Intermediate-Mass Stars: 14 Andromedae, 81 Ceti, 6 Lyncis, and HD167042

| url=https://academic.oup.com/pasj/article/60/6/1317/1391840

| last1=Sato | first1=Bun'ei | last2=Toyota | first2=Eri

| last3=Omiya | first3=Masashi | last4=Izumiura | first4=Hideyuki

| last5=Kambe | first5=Eiji | last6=Masuda | first6=Seiji

| last7=Takeda | first7=Yoichi | last8=Itoh | first8=Yoichi

| last9=Ando | first9=Hiroyasu | display-authors=1

| journal=Publications of the Astronomical Society of Japan

| volume=60 | issue=6 | pages=1317–1326 | year=2008

| arxiv=0807.0268 | bibcode=2008PASJ...60.1317S

| doi=10.1093/pasj/60.6.1317 | s2cid=67841762

}}

{{Cite journal |last1=White |first1=T R |last2=Huber |first2=D |last3=Mann |first3=A W |last4=Casagrande |first4=L |last5=Grunblatt |first5=S K |last6=Justesen |first6=A B |last7=Silva Aguirre |first7=V |last8=Bedding |first8=T R |last9=Ireland |first9=M J |last10=Schaefer |first10=G H |last11=Tuthill |first11=P G |date=2018-07-11 |title=Interferometric diameters of five evolved intermediate-mass planet-hosting stars measured with PAVO at the CHARA Array |journal=Monthly Notices of the Royal Astronomical Society |language=en |volume=477 |issue=4 |pages=4403–4413 |doi=10.1093/mnras/sty898 |doi-access=free |issn=0035-8711|arxiv=1804.05976 }}

{{Cite journal |last1=Malla |first1=Sai Prathyusha |last2=Stello |first2=Dennis |last3=Huber |first3=Daniel |last4=Montet |first4=Benjamin T |last5=Bedding |first5=Timothy R |last6=Fredslund Andersen |first6=Mads |last7=Grundahl |first7=Frank |last8=Jessen-Hansen |first8=Jens |last9=Hey |first9=Daniel R |last10=Palle |first10=Pere L |last11=Deng |first11=Licai |last12=Zhang |first12=Chunguang |last13=Chen |first13=Xiaodian |last14=Lloyd |first14=James |last15=Antoci |first15=Victoria |date=2020-08-21 |title=Asteroseismic masses of four evolved planet-hosting stars using SONG and TESS: resolving the retired A-star mass controversy |journal=Monthly Notices of the Royal Astronomical Society |volume=496 |issue=4 |pages=5423–5435 |doi=10.1093/mnras/staa1793 |doi-access=free |issn=0035-8711|arxiv=2006.07649 }}

{{cite simbad | title=6 Lyn | access-date=2018-05-27 }}

{{cite journal

| 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 | arxiv=1108.4971

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

{{cite journal

| last1=Massarotti | first1=Alessandro | last2=Latham | first2=David W.

| last3=Stefanik | first3=Robert P. | last4=Fogel | first4=Jeffrey

| title=Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity

| display-authors=1 | journal=The Astronomical Journal

| volume=135 | issue=1 | pages=209–231 | date=January 2008

| doi=10.1088/0004-6256/135/1/209 | bibcode=2008AJ....135..209M | doi-access=free }}

{{cite journal

| last1=Lépine | first1=Sébastien | last2=Shara | first2=Michael M.

| title=A Catalog of Northern Stars with Annual Proper Motions Larger than 0.15" (LSPM-NORTH Catalog)

| journal=The Astronomical Journal

| volume=129 | issue=3 | pages=1483–1522 | date=March 2005

| doi=10.1086/427854 | bibcode=2005AJ....129.1483L

| arxiv=astro-ph/0412070 | s2cid=2603568 }}

{{cite journal | title=Retired A Stars and Their Companions. VIII. 15 New Planetary Signals around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts | last1=Luhn | first1=Jacob K. | last2=Bastien | first2=Fabienne A. | last3=Wright | first3=Jason T. | last4=Johnson | first4=John A. | last5=Howard | first5=Andrew W. | last6=Isaacson | first6=Howard | display-authors=1 | journal=The Astronomical Journal | volume=157 | issue=4 | at=149 | year=2019 | arxiv=1811.03043 | bibcode=2019AJ....157..149L | doi=10.3847/1538-3881/aaf5d0 | s2cid=102486961 | doi-access=free }}

}}

External links

  • {{cite encyclopedia |url=http://exoplanet.eu/star.php?st=6+Lyn |archive-url=https://web.archive.org/web/20080803203049/http://exoplanet.eu/star.php?st=6+Lyn |url-status=dead |archive-date=August 3, 2008 |title=Notes for star 6 Lyn |author=Jean Schneider |year=2011 |encyclopedia=Extrasolar Planets Encyclopaedia |access-date=8 October 2011}}

{{Sky|06|30|47.1081|+|58|09|45.480|186}}

{{Stars of Lynx}}

{{DEFAULTSORT:6 Lyncis}}

Category:K-type giants

Category:Planetary systems with one confirmed planet

Category:Lynx (constellation)

Category:Durchmusterung objects

Lyncis, 06

045410

031039

2331