| 词条 | HD 148427 |
| 释义 |
| name = HD 148427 }}{{Starbox observe | epoch = J2000.0 | constell = Ophiuchus | ra = {{RA|16|28|28.151}}[1] | dec = {{DEC|–13|23|58.69}}[1] | appmag_v = 6.903 }}{{Starbox character | class = K0IV | appmag_1_passband = B | appmag_1 = 7.839 | appmag_2_passband = J | appmag_2 = 5.299 | appmag_3_passband = H | appmag_3 = 4.875 | appmag_4_passband = K | appmag_4 = 4.682 | r-i = | v-r = | b-v = 0.936 | u-b = | variable = }}{{Starbox astrometry | radial_v = | prop_mo_ra = –37.74 ± 0.76[1] | prop_mo_dec = 2.81 ± 0.51[1] | parallax = 16.94 | p_error = 0.60 | parallax_footnote = [1] | absmag_v = 3.039 }}{{Starbox detail | mass = 1.45 ± 0.06 | radius = 3.22 ± 0.2 | gravity = 3.75 | luminosity = 6.06 | temperature = 5052 ± 44 | metal_fe = 0.154 ± 0.04 | age_gyr = 2.5 | rotation = }}{{Starbox catalog | names = BD–13°4437, HIP 80687, PPM 231736, SAO 159932 }}{{Starbox reference | Simbad = HD+148427 | NSTED = HD+148427 | EPE = HD+148427 }}{{Starbox end}}HD 148427 is a 7th-magnitude K-type subgiant star approximately 193 light years away in the constellation Ophiuchus. Its mass is 45% greater than the Sun, and it is three times the size and six times more luminous, although its age is 2½ billion years. In August 2009, it was found to have a planet.{{OrbitboxPlanet begin | table_ref = }}{{OrbitboxPlanet | exoplanet = b | mass = ≥0.96 ± 0.1 | period = 331.5 ± 3.0 | semimajor = 0.93 ± 0.01 | eccentricity = 0.16 ± 0.08 }}{{Orbitbox end}} See also
References1. ^1 2 3 4 5 {{cite journal | title=Validation of the new Hipparcos reduction | url=http://www.aanda.org/articles/aa/full/2007/41/aa8357-07/aa8357-07.html | 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 }}Vizier catalog entry [1]}}{{Sky|16|28|28.1513|-|13|23|58.704|59}}{{Stars of Ophiuchus}}{{main-star-stub}}{{extrasolar-planet-stub}} 6 : K-type subgiants|Henry Draper Catalogue objects|Hipparcos objects|Ophiuchus (constellation)|Planetary systems|Durchmusterung objects |
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