| 词条 | HD 129445 |
| 释义 |
| name = HD 129445 }}{{Starbox observe | epoch = J2000.0 | constell = Circinus | ra = {{RA|14|46|03.064}}[1] | dec = {{DEC|–68|45|45.89}}[1] | appmag_v = 8.8 }}{{Starbox character | class = G6V | appmag_1_passband = B | appmag_1 = 9.6 | appmag_2_passband = J | appmag_2 = 7.531 | appmag_3_passband = H | appmag_3 = 7.243 | appmag_4_passband = K | appmag_4 = 7.167 | r-i = | v-r = | b-v = 0.8 | u-b = | variable = none }}{{Starbox astrometry | radial_v = +7.5 | prop_mo_ra = –198.45 ± 0.82[1] | prop_mo_dec = –58.57 ± 1.02[1] | parallax = 15.26 | p_error = 1.10 | parallax_footnote = [1] | absmag_v = 4.7 }}{{Starbox detail | mass = 0.99 | radius = | gravity = | luminosity = | temperature = | metal = 0.25 | age_gyr = | rotation = }}{{Starbox catalog | names = CD–68°1403, HIP 72203, LTT 5856, NLTT 38236, PPM 360965 }}{{Starbox reference | Simbad = HD+129445 | NSTED = HD+129445 | EPE = HD+129445 }}{{Starbox end}}HD 129445 is a G type star found in the Circinus constellation located approximately 210 light-years away[1] from the Earth. The star has been under the Magellan Planet Search Program observation due to its absolute visual magnitude and metallicity. The Magellan program conducted 17 doppler velocity tests which spans a full orbital period. The results led the program to detect a planet dubbed HD 129445 b whose readings was accurate to the Keplerian orbital model.[1][2]{{OrbitboxPlanet begin | table_ref = }}{{OrbitboxPlanet | exoplanet = b | mass = ≥1.6 ± 0.6 | period = 1840 ± 55 | semimajor = 2.9 ± 0.2 | eccentricity = 0.70 ± 0.10 }}{{Orbitbox end}} See also
References1. ^{{cite web| title= Estrella del Anfitrión: HD 129445| url= http://planetquest1.jpl.nasa.gov/atlas_espanol/atlas_profile.cfm?Planet=576| work= Planet Quest| accessdate= 2010-02-12| deadurl= yes| archiveurl= https://web.archive.org/web/20100704234649/http://planetquest1.jpl.nasa.gov/atlas_espanol/atlas_profile.cfm?Planet=576| archivedate= 2010-07-04| df= }} [3]2. ^{{cite web | title= HD 129445 | url=http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+129445 | work= Exoplanets | accessdate=2010-02-12}} 3. ^1 2 3 4 5 6 {{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 }}{{Stars of Circinus}}{{Sky|14|46|03.06|-|68|45|45.9|220}} 6 : G-type main-sequence stars|Henry Draper Catalogue objects|Hipparcos objects|Durchmusterung objects|Circinus (constellation)|Planetary systems |
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