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词条 Pi Piscium
释义

  1. Naming

  2. References

{{Starbox begin
| name = Pi Piscium
}}{{Starbox image
| image ={{Location mark
| image=Pisces IAU.svg | alt= | float=center | width=250
| label= | position=right
| mark=Red circle.svg | mark_width=10 | mark_link=π Psc
| x=313 | y=410
}}
| caption=Location of π Piscium (circled)
}}{{Starbox observe
| epoch = J2000.0
| equinox = J2000.0 (ICRS)
| constell = Pisces
| ra = {{RA|01|37|05.91523}}
| dec = {{DEC|+12|08|29.5186}}
| appmag_v = 5.60[3]
}}{{Starbox character
| class = F0 V[4]
| b-v =
| u-b =
| variable =
}}{{Starbox astrometry
| radial_v = −1.0[3]
| prop_mo_ra = −77.29
| prop_mo_dec = +9.13
| parallax = 28.50
| p_error = 0.97
| parallax_footnote =
| absmag_v = +2.94[3]
}}{{Starbox detail
| source =
| mass = {{Val|1.51|0.02}}[10]
| radius =
| luminosity = 6.3[10]
| temperature = 6,850[3]
| gravity = 4.00[3]
| metal_fe = {{Val|−0.45|0.05}}[14]
| rotational_velocity = 105.9[3]
| age_gyr = 2.0[16]
}}{{Starbox catalog
| names = {{odlist | B=π Psc | F=102 Piscium | BD=+11° 205 | FK5=1046 | HD=9919 | HIP=7535 | HR=463 | SAO=92536 | GC=1954 | PPM=117498 }}[17]
}}{{Starbox reference
| Simbad=HD+9919
}}{{Starbox end}}Pi Piscium (π Piscium) is a solitary,[18] yellow-white hued star in the zodiac constellation of Pisces. It is faintly visible to the naked eye, having an apparent visual magnitude of 5.60.[3] Based upon an annual parallax shift of 28.50 mas as seen from Earth, it is located about 1114 light years from the Sun. It is a member of the thin disk population of the Milky Way.[14]

This is an ordinary F-type main-sequence star with a stellar classification of F0 V.[4] At the estimated age of two billion years,[16] it is about 55% of the way through its main sequence lifetime[10] and still has a relatively high rate of spin with a projected rotational velocity of 105.9 km/s.[3] The star has 1.5[10] times the mass of the Sun and is radiating 6.3[10] times the Sun's luminosity at an effective temperature of 6,850 K.[3]

Naming

In Chinese, {{lang|zh|右更}} ({{lang|zh-Latn|Yòu Gèng}}), meaning Official in Charge of the Pasturing, refers to an asterism consisting of refers to an asterism consisting of π Piscium, η Piscium, ρ Piscium, ο Piscium and 104 Piscium. Consequently, π Piscium itself is known as {{lang|zh|右更三}} ({{lang|zh-Latn|Yòu Gèng sān}}, {{lang-en|the Third Star of Official in Charge of the Pasturing}}.)[1]

References

1. ^{{zh icon}} AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 19 日
2. ^{{citation | display-authors=1 | last1=Holmberg | first1=J. | last2=Nordström | first2=B. | last3=Andersen | first3=J. | title=The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics | journal=Astronomy and Astrophysics | volume=501 | issue=3 |date=July 2009 | pages=941–947 | doi=10.1051/0004-6361/200811191 | bibcode=2009A&A...501..941H | arxiv=0811.3982 | postscript=. }}
3. ^{{citation | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | title=A catalogue of multiplicity among bright stellar systems | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869–879 | date=September 2008 | doi=10.1111/j.1365-2966.2008.13596.x | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | postscript=. }}
4. ^{{citation | postscript=. | last1=Cowley | first1=Anne | last2=Fraquelli | first2=Dorothy | title=MK Spectral Types for Some Bright F Stars | journal=Publications of the Astronomical Society of the Pacific | volume=86 | issue=509 | page=70 | date=February 1974 | doi=10.1086/129562 | bibcode=1974PASP...86...70C }}
5. ^{{citation | last1=Ramírez | first1=I. | last2=Fish | first2=J. R. | last3=Lambert | first3=D. L. | last4=Allende Prieto | first4=C. | title=Lithium Abundances in nearby FGK Dwarf and Subgiant Stars: Internal Destruction, Galactic Chemical Evolution, and Exoplanets | journal=The Astrophysical Journal | display-authors=1 | volume=756 | issue=1 | page=46 | date=September 2012 | doi=10.1088/0004-637X/756/1/46 | bibcode=2012ApJ...756...46R | arxiv=1207.0499 | postscript=. }}
6. ^{{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 | arxiv=1201.2052 | postscript=. }}
7. ^{{citation | title=Investigating the possible connection between λ Bootis stars and intermediate Population II type stars | display-authors=1 | last1=Paunzen | first1=E. | last2=Iliev | first2=I. Kh. | last3=Fossati | first3=L. | last4=Heiter | first4=U. | last5=Weiss | first5=W. W. | journal=Astronomy & Astrophysics | volume=567 | id=A67 | pages=8 | date=July 2014 | doi=10.1051/0004-6361/201423817 | bibcode=2014A&A...567A..67P | arxiv=1406.3936 | postscript=. }}
8. ^{{cite simbad | title=pi. Psc | accessdate=2017-07-25 | postscript=. }}
[2][3][4][5][6][7][8]
}}{{Stars of Pisces|state=collapsed}}

8 : F-type main-sequence stars|Pisces (constellation)|Flamsteed objects|Bayer objects|Durchmusterung objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects

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