| 词条 | Kappa Pyxidis |
| 释义 |
| name=Kappa Pyxidis }}{{Starbox image | image = | caption=Location of κ Pyxidis (circled) }}{{Starbox observe | epoch = J2000 | ra = {{RA|09|08|02.88045}}[1] | dec = {{DEC|–25|51|30.7303}}[1] | appmag_v = 4.56[1] | constell = Pyxis }}{{Starbox character | class = K4/K5III[2] | b-v = +1.61[1] | u-b = +1.87[1] | variable = }}{{Starbox astrometry | radial_v = {{Val|-44.7|2.8}}[3] | prop_mo_ra = {{Val|35.65|0.41}}[1] | prop_mo_dec = {{Val|0.30|0.27}}[1] | parallax = 5.82 | p_error = 0.55 | parallax_footnote = [4] | absmag_v = −1.53[5] }}{{Starbox detail | mass = | radius = | luminosity = 965[12] | temperature = {{Val|3931|31|fmt=commas}}[6] | metal_fe = {{Val|−0.22|0.08}}[6] | rotation = | rotational_velocity = | gravity = {{Val|1.44|0.22}}[6] | age = }}{{Starbox catalog | names= {{odlist | B=κ Pyx | CPD=−25° 4067 | HD=78541 | HIP=44824 | HR=3628 | SAO=177002 | CCDM=J09080-2552AB | GC=12614 | IDS=09037-2527 AB | PPM=255695 | WDS=J09080-2552AB }} }}{{Starbox reference |Simbad=kap+Pyx }}{{Starbox end}}Kappa Pyxidis, Latinized from κ Pyxidis, is a single[7] star in the constellation of Pyxis, with an apparent magnitude of +4.62. This is an orange K-type giant. Approximately 500 light years from Earth, it shines with a luminosity approximately 965 times that of the Sun and has a surface temperature of 4031 K.[8] It is a variable star of uncertain type, changing brightness with an amplitude of 0.0058 in visual magnitude over a period of 8.5 days.[9] A magnitude 10 visual companion is 2.1 arcseconds distant from it.[10] Kappa Pyxidis is moving through the Galaxy at a speed of 53.7 km/s relative to the Sun. It will come closest to the Sun 2.6 million years from now when it will brighten to magnitude 3.34 from a distance of 308 light years.[11]{{Better source|date=July 2017}} References1. ^1 2 {{citation | display-authors=1 | last1=Johnson | first1=H. L. | last2=Iriarte | first2=B. | last3=Mitchell | first3=R. I. | last4=Wisniewskj | first4=W. Z. | title=UBVRIJKL photometry of the bright stars | journal=Communications of the Lunar and Planetary Laboratory | volume=4 | issue=99 | date=1966 | bibcode=1966CoLPL...4...99J | postscript=. }} {{Clear}}{{Stars of Pyxis}}{{giant-star-stub}}2. ^{{citation | last1=Houk | first1=Nancy | last2=Smith-Moore | first2=M. | title=Michigan catalogue of two-dimensional spectral types for the HD stars | volume=4 | publication-place=Ann Arbor | year=1978 | publisher=Dept. of Astronomy, University of Michigan | bibcode=1988mcts.book.....H | postscript=. }} 3. ^{{citation | last1=de Bruijne | first1=J. H. J. | last2=Eilers | first2=A.-C. | title=Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project | journal=Astronomy & Astrophysics | volume=546 | id=A61 | pages=14 | date=October 2012 | doi=10.1051/0004-6361/201219219 | bibcode=2012A&A...546A..61D | arxiv=1208.3048 | postscript=. }} 4. ^1 2 3 4 {{citation | first=F. | last=van Leeuwen |date=November 2007 | title=Validation of the new Hipparcos reduction | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | arxiv=0708.1752 | postscript=. }} 5. ^{{citation | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | arxiv=1108.4971 | postscript=. }} 6. ^1 2 {{citation | display-authors=1 | last1=Prugniel | first1=Ph. | last2=Vauglin | first2=I. | last3=Koleva | first3=M. | title=The atmospheric parameters and spectral interpolator for the MILES stars | journal=Astronomy & Astrophysics |volume=531 | page=A165 | date=July 2011 | doi=10.1051/0004-6361/201116769 | bibcode=2011A&A...531A.165P | postscript=. | arxiv=1104.4952 }} 7. ^{{citation | title = A catalogue of multiplicity among bright stellar systems | last1 = Eggleton | first1 = P. P. | last2 = Tokovinin | first2=A. A. | journal = Monthly Notices of the Royal Astronomical Society | volume = 389 | issue = 2 | pages = 869 | date = 2008 | doi = 10.1111/j.1365-2966.2008.13596.x | bibcode = 2008MNRAS.389..869E | postscript=. |arxiv = 0806.2878 }} 8. ^1 {{cite journal|author=McDonald, I.|author2=Zijlstra, A. A.|author3=Boyer, M. L.|date=2012|title=Fundamental Parameters and Infrared Excesses of Hipparcos Stars|journal=Monthly Notices of the Royal Astronomical Society|volume=427|issue=1|pages=343–57|bibcode=2012MNRAS.427..343M|arxiv = 1208.2037 |doi = 10.1111/j.1365-2966.2012.21873.x }} 9. ^{{cite journal | bibcode=2002MNRAS.331...45K | title=New periodic variables from the Hipparcos epoch photometry | journal=Monthly Notices of the Royal Astronomical Society | volume=331 | pages=45 | author1=Koen | first1=Chris | last2=Eyer | first2=Laurent | year=2002 | doi=10.1046/j.1365-8711.2002.05150.x | arxiv=astro-ph/0112194 }} 10. ^{{cite book|last=Privett|first=Grant|author2=Jones, Kevin |title=The Constellation Observing Atlas|publisher=Springer Science & Business Media|location=New York, New York|date=2013|pages=168|isbn=9781461476481|url=https://books.google.com.au/books?id=uN69BAAAQBAJ&pg=PA168}} 11. ^Kappa Pyxidis (HIP 44824) 7 : K-type giants|Bayer objects|Pyxis (constellation)|Durchmusterung objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。