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- References
{{about|the star|the open cluster|chi Persei{{!}}χ Persei}}{{Starbox begin}}{{Starbox observe
| epoch = J2000.0 (ICRS)
| constell = Perseus
| ra = {{RA|02|18|04.58449}}
| dec = {{DEC|+57|30|58.7579}}
| appmag_v = 5.99[3]
}}{{Starbox character
| type = horizontal branch[4]
| class = G7 III[5]
| b-v = {{Val|1.039|0.007}}[3]
| u-b =
| variable =
}}{{Starbox astrometry
| radial_v = {{Val|−12.5|0.3}}[3]
| prop_mo_ra = −13.359
| prop_mo_dec = −1.240
| parallax = 4.2163
| p_error = 0.0437
| parallax_footnote =
| absmag_v = −1.22[11]
}}{{Starbox detail
| source =
| mass = 3.84[12]
| radius = 24[4]
| luminosity = 316[11]
| temperature = 4,974[12]
| metal_fe = −0.11[12]
| gravity = 2.44[12]
| rotational_velocity = 11.5[18]
| age_myr = 191[11]
}}{{Starbox catalog
| names = {{odlist | F=7 Per | BD=+56° 486 | HD=13994 | HIP=10729 | HR=662 | SAO=23149 }}[20]
}}{{Starbox reference
| Simbad = chi+Per
}}{{Starbox end}}7 Persei is a star in the constellation Perseus, located 774 light years away from the Sun.[ While the star bears the Bayer designation Chi Persei, it is not to be confused with the entire cluster NGC 884, commonly referred to as Chi Persei. It is faintly visible to the naked eye as a dim, yellow-hued star with an apparent visual magnitude of 5.99.[3] This object is moving closer to the Earth with a heliocentric radial velocity of −12.5 km/s.[3]]This is an evolved giant star with a stellar classification of G7 III,[5] most likely (93% chance) on the horizontal branch.[4] At the age of 191 million years,[11] it has 3.84[12] times the mass of the Sun but has expanded to 24[4] times the Sun's radius. The star is radiating 316[11] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,974 K.[12] References1. ^1 {{cite simbad | title=chi Per | access-date=2019-03-24 }}
2. ^1 2 {{citation | display-authors=1 | last1=Currie | first1=Thayne | last2=Hernandez | first2=Jesus | last3=Irwin | first3=Jonathan | last4=Kenyon | first4=Scott J. | last5=Tokarz | first5=Susan | last6=Balog | first6=Zoltan | last7=Bragg | first7=Ann | last8=Berlind | first8=Perry | last9=Calkins | first9=Mike | title=The Stellar Population of h and χ Persei: Cluster Properties, Membership, and the Intrinsic Colors and Temperatures of Stars | journal=The Astrophysical Journal Supplement | volume=186 | issue=2 | pages=191 | year=2010 | doi=10.1088/0067-0049/186/2/191 | postscript=. | bibcode=2010ApJS..186..191C | arxiv=0911.5514 }}
3. ^1 2 3 4 5 6 {{citation | postscript=. | title=The Lithium Abundances of a Large Sample of Red Giants | display-authors=1 | last1=Liu | first1=Y. J. | last2=Tan | first2=K. F. | last3=Wang | first3=L. | last4=Zhao | first4=G. | last5=Sato | first5=Bun'ei | last6=Takeda | first6=Y. | last7=Li | first7=H. N. | journal=The Astrophysical Journal | arxiv=1404.1687 | volume=785 | issue=2 | id=94 | pages=12 | date=April 2014 | doi=10.1088/0004-637X/785/2/94 | bibcode=2014ApJ...785...94L }}
4. ^1 2 3 4 {{citation | title=Precise radial velocities of giant stars. X. Bayesian stellar parameters and evolutionary stages for 372 giant stars from the Lick planet search | display-authors=1 | last1=Stock | first1=Stephan | last2=Reffert | first2=Sabine | last3=Quirrenbach | first3=Andreas | journal=Astronomy & Astrophysics | volume=616 | id=A33 | pages=15 | date=August 2018 | doi=10.1051/0004-6361/201833111 | arxiv=1805.04094 | bibcode=2018A&A...616A..33S | postscript=. }}
5. ^1 {{citation | title=On the Nature of Rapidly Rotating Single Evolved Stars | display-authors=1 | last1=Rodrigues da Silva | first1=R. | last2=Canto Martins | first2=B. L. | last3=De Medeiros | first3=J. R. | journal=The Astrophysical Journal | volume=801 | issue=1 | id=54 | pages=6 | date=March 2015 | doi=10.1088/0004-637X/801/1/54 | bibcode=2015ApJ...801...54R | arxiv=1503.03447 }}
6. ^1 2 3 4 5 {{citation | display-authors=1 | last1=Takeda | first1=Yoichi | last2=Sato | first2=Bun'ei | last3=Murata | first3=Daisuke | title=Stellar Parameters and Elemental Abundances of Late-G Giants | journal=Publications of the Astronomical Society of Japan | date=August 2008 | volume=60 | issue=4 | pages=781–802 | bibcode=2008PASJ...60..781T | arxiv=0805.2434 | doi=10.1093/pasj/60.4.781 | postscript=. }}
7. ^1 2 3 4 5 {{citation | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | postscript=. | arxiv=1108.4971 | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 }}
[1][2][3][4][5][6][7]
}}{{Stars of Perseus}} 9 : G-type giants|Horizontal-branch stars|Perseus (constellation)|Bayer objects|Durchmusterung objects|Flamsteed objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects |