| 词条 | HD 175541 |
| 释义 |
| name = HD 175541 }}{{Starbox observe | epoch = J2000 | ra = {{RA|18|55|40.884}}[1] | dec = {{DEC|+04|15|55.17}}[1] | appmag_v = 8.03 | constell = Serpens }}{{Starbox character | class = G8IV | r-i = 0.33 | v-r = | b-v = 0.9 | u-b = 0.56 | variable = }}{{Starbox astrometry | radial_v = 18.4 ± 2 | prop_mo_ra = -6.82 ± 1.01[1] | prop_mo_dec = -89.23 ± 0.79[1] | parallax = 7.87 | p_error = 0.95 | parallax_footnote =[1] | absmag_v = 2.50 }}{{Starbox detail | mass = 1.65 | radius = 3.85 | luminosity = | temperature = 5060 ± 44 | metal = -7 ± 4 % | gravity = 3.72 g | rotation = | age = 1.9 ± 1 G | rotational_velocity = }} |- bgcolor="#FFFAFA"{{Starbox catalog | names = BD +04º 3911, GC 25968, GCRV 11376, GJ 736, HIP 92895, SAO 124054. }}{{Starbox reference | Simbad=HD+175541 | EPE = HD+175541 | ARICNS = 01523 }}{{Starbox end}} HD 175541 is an intermediate-mass subgiant star in the constellation Serpens. That means when this star was a main-sequence, it was an A-type star. It is an 8th magnitude star about 410 light years from Earth. Despite its distance of over 100 ly, It was given the number 736 in the Gliese Catalogue of Nearby Stars. In April 2007, the planet was found orbiting around one of the three preferred intermediate-mass subgiants that has changes in radial velocity trends, from Lick and Keck Observatories in Mount Hamilton (California) and Mauna Kea (Hawai'i), United States. {{OrbitboxPlanet begin| table_ref = }}{{OrbitboxPlanet | exoplanet = b | mass = >0.61 | period = 297.3 ± 6 | semimajor = 1.03 | eccentricity = 0.33 ± 0.2 }}{{Orbitbox end}} See also
References1. ^1 2 3 4 5 {{cite journal | title=Validation of the new Hipparcos reduction | url=http://www.aanda.org/index.php?option=com_article&access=bibcode&Itemid=129&bibcode=2007A%2526A...474..653VFUL | 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]}}
6 : G-type subgiants|Henry Draper Catalogue objects|Hipparcos objects|Gliese and GJ objects|Serpens (constellation)|Durchmusterung objects |
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