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词条 Phi Ursae Majoris
释义

  1. Naming

  2. References

{{Starbox begin
| name=Phi Ursae Majoris
}}{{Starbox image
| image ={{Location map|100x100
|AlternativeMap=Ursa Major constellation map.svg
|caption=
|width=250
|lat=53 |long=75.75
|mark=Cercle rouge 100%.svg | marksize=12
|float=center

}}| caption=Location of φ Ursae Majoris (circled)


}}{{Starbox observe
| epoch=J2000.0
| constell=Ursa Major
| ra={{RA|09|52|06.35437}}[1]
| dec={{DEC|+54|03|51.5962}}[1]
| appmag_v=+4.60[2]
}}{{Starbox character
|class=A3 IV[3]
| b-v = +0.03[2]
| u-b = +0.08[2]
}}{{Starbox astrometry
| radial_v = −14.70[4]
| prop_mo_ra = −6.00[1]
| prop_mo_dec = +19.16[1]
| parallax = 6.41
| p_error = 0.59
| parallax_footnote=[1]
| absmag_v = −1.39[5]
}}{{Starbox detail
| source =
| component1 = φ UMa A
| mass = {{Val|3.5|0.2}}[6]
| radius =
| luminosity = 347[6]
| temperature = {{Val|8769|150|fmt=commas}}[7]
| gravity = {{Val|3.69|0.16}}[7]
| metal_fe = {{Val|−0.23|0.08}}[7]
| rotational_velocity = 28[6]
| age_gyr =
}}{{Starbox catalogue
| names={{odlist | B=φ UMi | F=30 Ursae Minoris | BD=+54°1331 | FK5=| HD=85235 | HIP=48402 | HR=3894 | SAO=27408 GC=13559 | CCDM=J09521+5404AB | IDS=09453+5432 | PPM=32355 | WDS=J09521+5404AB }}[8]
}}{{Starbox reference
|Simbad=phi+UMa
}}{{Starbox end}}Phi Ursae Majoris (Phi UMa, φ Ursae Majoris, φ UMa) is binary star in constellation of Ursa Major, which is separated in 0.245 arcseconds.[9] Both of components are white A-type subgiant.[10] Based upon parallax measurements, it is approximately 510 light years from Earth.[1]

Phi Ursae Majoris is moving through the Galaxy at a speed of 21.6 km/s relative to the Sun. Its projected Galactic orbit carries it between 24,000 and 46,000 light years from the center of the Galaxy.[11]{{Better source|date=September 2017}}

Phi Ursae Majoris will come closest to the Sun 4.7 million years from now when it will brighten to magnitude 3.88 from a distance of 370 light years.[11]

Naming

  • With τ, h, υ, θ, e, and f, it composed the Arabic asterism Sarīr Banāt al-Na'sh, the Throne of the daughters of Na'sh, and Al-Haud, the Pond[12]. According to the catalogue of stars in the Technical Memorandum 33-507 - A Reduced Star Catalog Containing 537 Named Stars, Al-Haud were the title for seven stars : f as Alhaud I, τ as Alhaud II, e as Alhaud III, h as Alhaud IV, θ as Alhaud V, υ as Alhaud VI and this star (φ) as Alhaud VII [13].
  • In Chinese, {{lang|zh|文昌}} ({{lang|zh-Latn|Wén Chāng}}), meaning Administrative Center, refers to an asterism consisting of φ Ursae Majoris, υ Ursae Majoris, θ Ursae Majoris, 15 Ursae Majoris and 18 Ursae Majoris. Consequently, φ Ursae Majoris itself is known as {{lang|zh|文昌三}} ({{lang|zh-Latn|Wén Chāng sān}}, {{lang-en|the Third Star of Administrative Center}}.).[14]

References

1. ^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|author1=van Leeuwen, F.|display-authors=etal|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 }}
2. ^1 2 {{citation | title=UBVRIJKL Photometry of the Bright Stars | author1=Johnson, H. L. | journal=Communications of the Lunar and Planetary Laboratory | volume=4 | pages=99 | date=1966 | bibcode=1966CoLPL...4...99J | postscript=. }}
3. ^{{citation | last1=Edwards | first1=T. W. | title=MK classification for visual binary components | journal=Astronomical Journal | volume=81 | pages=245–249 |date=April 1976 | doi=10.1086/111879 | bibcode=1976AJ.....81..245E }}
4. ^{{cite journal|title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system|author=Gontcharov, G. A.|date=2006|journal=Astronomy Letters|volume=32|issue=11|pages=759–771|bibcode=2006AstL...32..759G|doi=10.1134/S1063773706110065|arxiv=1606.08053}}
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 | last1=Zorec | first1=J. | last2=Royer | first2=F. | title=Rotational velocities of A-type stars. IV. Evolution of rotational velocities | journal=Astronomy & Astrophysics | volume=537 | page=A120 | date=January 2012 | doi=10.1051/0004-6361/201117691 | bibcode=2012A&A...537A.120Z | postscript=. | arxiv=1201.2052 }}
7. ^1 2 {{citation | title=The atmospheric parameters and spectral interpolator for the MILES stars | journal=Astronomy & Astrophysics | volume=531 | pages=A165 | year=2011 | last1=Prugniel | first1=P. | last2=Vauglin | first2=I.| last3=Koleva | first3=M. | doi=10.1051/0004-6361/201116769 | arxiv=1104.4952 | bibcode=2011A&A...531A.165P | postscript=. }}
8. ^{{cite simbad|title=phi UMa|access-date=18 February 2017}}
9. ^{{citation | last1=Barnaby | first1=David | last2=Spillar | first2=Earl | last3=Christou | first3=Julian.C | last4=Drummond | first4=Jack.D | title=Measurements of Binary Stars with the Starfire Optical Range Adaptive Optics Systems | journal=The Astronomical Journal | volume=119 | issue=1 | pages=378–389 |date=January 2000 | doi=10.1086/301155 | bibcode=2000AJ....119..378B}}
10. ^PHI UMA (Phi Ursae Majoris)
11. ^1 Phi Ursae Majoris (HIP 48402) {{webarchive|url=https://archive.is/20130414055943/http://www.astrostudio.org/xhip.php?hip=48402 |date=2013-04-14 }}
12. ^{{citation | title=Star-Names and Their Meanings | last=Allen | first=Richard Hinckley | authorlink=Richard Hinckley Allen | year=1899 | publisher=G. E. Stechert | publication-place=New York | page=442 }}
13. ^{{citation | url=https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19720005197_1972005197.pdf | first1=Jack W. | last1=Rhoads | title=Technical Memorandum 33-507-A Reduced Star Catalog Containing 537 Named Stars | publisher=Jet Propulsion Laboratory, California Institute of Technology | date=November 15, 1971 | postscript=. }}
14. ^{{zh icon}} AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 6 月 16 日
{{Clear}}{{Stars of Ursa Major}}{{subgiant-star-stub}}

8 : Bayer objects|Ursa Major (constellation)|A-type subgiants|Flamsteed objects|Hipparcos objects|Henry Draper Catalogue objects|HR objects|Durchmusterung objects
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