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{{Starbox begin
| name = 20 Boötis
}}{{Starbox observe
| epoch = J2000
| ra = {{RA|14|19|45.23479}}
| dec = {{DEC|+16|18|25.0136}}
| appmag_v = 4.85
| constell = Boötes
}}{{Starbox character
| class = K3 III
| r-i = 0.6
| v-r =
| b-v = 1.23
| u-b = 1.4
| variable =
}}{{Starbox astrometry
| radial_v = –7.64
| prop_mo_ra = –141.56
| prop_mo_dec = +60.48
| parallax = 17.44
| p_error = 0.22
| parallax_footnote =
| absmag_v = {{nowrap|1.01 ± 0.09}}[6]
}}{{Starbox detail
| mass = {{nowrap|1.14 ± 0.19}}[6]
| radius = {{nowrap|11.3 ± 0.5}}[6]
| luminosity =
| temperature = 4,472[6]
| metal_fe = 0.16[6]
| gravity = {{nowrap|2.36 ± 0.08}}[6]
| rotation = 848 days[12]
| rotational_velocity = 1.0[12]
| age_gyr = {{nowrap|5.21 ± 2.28}}[6]
}}{{Starbox catalog
| names=HR 5370, HD 125560, BD+16°2637, FK5 3135, HIP 70027, SAO 100980, GC 19334.
}}{{Starbox reference
| Simbad=HD+125560
| ARICNS =
}}{{Starbox end}}20 Boötis is a star in the constellation Boötes. 20 Boötis is an orange K-type giant with an apparent magnitude of +4.85. It is approximately 187 light years from Earth. References1. ^1 2 3 4 5 6 7 {{citation | display-authors=1 | last1=da Silva | first1=L. | last2=Girardi | first2=L. | last3=Pasquini | first3=L. | last4=Setiawan | first4=J. | last5=von der Lühe | first5=O. | last6=de Medeiros | first6=J. R. | last7=Hatzes | first7=A. | last8=Döllinger | first8=M. P. | last9=Weiss | first9=A. | title=Basic physical parameters of a selected sample of evolved stars | journal=Astronomy and Astrophysics | volume=458 | issue=2 | pages=609–623 | doi=10.1051/0004-6361:20065105 | bibcode=2006A&A...458..609D |arxiv = astro-ph/0608160 |date=November 2006}}
2. ^1 2 {{citation | display-authors=1 | last1=Setiawan | first1=J. | last2=Pasquini | first2=L. | last3=da Silva | first3=L. | last4=Hatzes | first4=A. P. | last5=von der Lühe | first5=O. | last6=Girardi | first6=L. | last7=de Medeiros | first7=J. R. | last8=Guenther | first8=E. | title=Precise radial velocity measurements of G and K giants. Multiple systems and variability trend along the Red Giant Branch | journal=Astronomy and Astrophysics | volume=421 | pages=241–254 | doi=10.1051/0004-6361:20041042-1 | bibcode=2004A&A...421..241S |date=July 2004}}
}}External links{{Stars of Boötes}}{{DEFAULTSORT:20 Bootis}}{{giant-star-stub}}{{var-star-stub}} 7 : Henry Draper Catalogue objects|Hipparcos objects|Flamsteed objects|Boötes|K-type giants|HR objects|Durchmusterung objects |