| 释义 |
- Naming
- References
{{Starbox begin
| name = Omega 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=ω Pup
| x=605 | y=485
}}
| caption=Location of ω Piscium (circled)
}}{{Starbox observe
| epoch = J2000.0
| equinox = J2000.0 (ICRS)
| constell = Pisces
| ra = {{RA|23|59|18.69064}}
| dec = {{DEC|+06|51|47.9562}}
| appmag_v = 4.01[3]
}}{{Starbox character
| class = F4 IV[4] or F4 V[5]
| b-v = +0.42[3]
| u-b = +0.07[3]
| variable =
}}{{Starbox astrometry
| radial_v = {{Val|+2.9|0.3}}[8]
| prop_mo_ra = +150.35
| prop_mo_dec = −112.12
| parallax = 31.26
| p_error = 0.15
| parallax_footnote =
| absmag_v = +1.51[12]
}}{{Starbox detail
| source =
| component1 = ω Psc A
| mass = 1.22[13]
| radius =
| luminosity = 21[12]
| temperature = {{Val|6641|226|fmt=commas}}[13]
| gravity = {{Val|3.74|0.14}}[13]
| metal_fe = −0.09[17]
| rotational_velocity = 40.3[18]
| age_gyr = 1.337[13]
}}{{Starbox catalog
| names = {{odlist | B=ω Psc | F=28 Piscium | FK5=902 | BD=+06° 5227 | HD=224617 | HIP=118268 | HR=9072 | SAO=128513 }}[20]
}}{{Starbox reference
| Simbad=ome+Psc
}}{{Starbox end}}Omega Piscium (Omega Psc, ω Piscium, ω Psc) is a star approximately 106 light years away from Earth, in the constellation Pisces. It has a spectral type of F4IV, meaning it is a subgiant/dwarf star, and it has a temperature of 6,600 kelvins. It may or may not be a close binary star system. Variations in its spectrum were once interpreted as giving it an orbital period of 2.16 days, but this claim was later debunked as false. It is 20 times brighter than the Sun and is 1.8 times greater in mass, if it is a single star.[1]Counting stars with Flamsteed numbers, Greek letters, and proper names, Omega Piscium was the named star with the highest right ascension (akin to terrestrial longitude). Due to the 26,000-year wobble of the Earth's axis, this changed in 2013, when its right ascension was reset to 0 hours. It is the first star to the east of the Circlet of Pisces,[1] which represents the head of the western fish in the constellation.[2] Naming- In the catalogue of stars in the Calendarium of Al Achsasi al Mouakket, this star was designated Dzaneb al Samkat, which was translated into Latin as Cauda Piscis, meaning the tail of fish.[3]
- In Chinese, {{lang|zh|霹靂}} ({{lang|zh-Latn|Pī Lì}}), meaning Thunderbolt, refers to an asterism consisting of refers to an asterism consisting of ω Piscium, β Piscium, γ Piscium, θ Piscium and ι Piscium. Consequently, ω Piscium itself is known as {{lang|zh|霹靂五}} ({{lang|zh-Latn|Pī Lì wu}}, {{lang-en|the Fifth Star of Thunderbolt}}.)[4]
References1. ^1 {{cite web|title=Omega Psc |url=http://www.astro.uiuc.edu/~kaler/sow/omegapsc.html |accessdate=September 30, 2007 |deadurl=yes |archiveurl=https://web.archive.org/web/20070430194959/http://www.astro.uiuc.edu/~kaler/sow/omegapsc.html |archivedate=April 30, 2007 |df= }}
2. ^{{cite web|title=Western Pisces |url=http://www.astro.uiuc.edu/~kaler/sow/psc-w-p.html |accessdate=September 30, 2007 |deadurl=yes |archiveurl=https://web.archive.org/web/20070615124107/http://www.astro.uiuc.edu/~kaler/sow/psc-w-p.html |archivedate=June 15, 2007 |df= }}
3. ^{{cite journal | last=Knobel | first=E. B. | title=Al Achsasi Al Mouakket, on a catalogue of stars in the Calendarium of Mohammad Al Achsasi Al Mouakket | journal=Monthly Notices of the Royal Astronomical Society | volume=55 | page=430 |date=June 1895 | bibcode=1895MNRAS..55..429K | doi=10.1093/mnras/55.8.429}}
4. ^{{zh icon}} AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 8 日
5. ^1 2 {{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 {{citation | last1=Gontcharov | first1=G. A. | title=Pulkovo Compilation of Radial Velocities for 35495 Hipparcos stars in a common system | journal=Astronomy Letters | postscript=. | volume=32| issue=11| pages=759–771| date=November 2006 | doi = 10.1134/S1063773706110065| bibcode=2006AstL...32..759G |arxiv = 1606.08053 }}
7. ^1 2 3 {{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 | year=1966 | bibcode=1966CoLPL...4...99J | postscript=. }}
8. ^1 {{citation | last1=Abt | first1=Helmut A. | postscript=. | title=MK Classifications of Spectroscopic Binaries | journal=The Astrophysical Journal Supplement | volume=180 | issue=1 | pages=117–18 | date=2009 | doi=10.1088/0067-0049/180/1/117 | bibcode=2009ApJS..180..117A}}
9. ^1 {{citation | title=Photoelectric measurements of the λ4200 A CN band and the G band in G8-K5 spectra | last1=Griffin | first1=R. F. | last2=Redman | first2=R. O. | journal=Monthly Notices of the Royal Astronomical Society | volume=120 | pages=287 | year=1960 | postscript=. | doi=10.1093/mnras/120.4.287 | bibcode=1960MNRAS.120..287G }}
10. ^1 {{citation | last1=Schröder | first1=C. | last2=Reiners | first2=A. | last3=Schmitt | first3=J. H. M. M. | title=Ca II HK emission in rapidly rotating stars. Evidence for an onset of the solar-type dynamo | journal=Astronomy and Astrophysics | volume=493 | issue=3 | pages=1099–1107 | date=January 2009 | doi=10.1051/0004-6361:200810377 | bibcode=2009A&A...493.1099S | postscript=. | url=http://goedoc.uni-goettingen.de/goescholar/bitstream/handle/1/9690/aa10377-08.pdf?sequence=2}}
11. ^1 {{citation | last1=Pace | first1=G. | title=Chromospheric activity as age indicator. An L-shaped chromospheric-activity versus age diagram | journal=Astronomy & Astrophysics | postscript=. | volume=551 | id=L8 | pages=4 | date=March 2013 | doi=10.1051/0004-6361/201220364 | bibcode=2013A&A...551L...8P |arxiv = 1301.5651 }}
12. ^1 2 3 4 {{citation | last1=David | first1=Trevor J. | last2=Hillenbrand | first2=Lynne A. | title=The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets | journal=The Astrophysical Journal | volume=804 | issue=2 | pages=146 | year=2015 | bibcode=2015ApJ...804..146D | doi=10.1088/0004-637X/804/2/146 | arxiv=1501.03154 | postscript=. }}
13. ^1 {{cite simbad | title=ome Psc | accessdate=2017-07-22 | postscript=. }}
}}{{Stars of Pisces}} 8 : F-type subgiants|Pisces (constellation)|Bayer objects|Durchmusterung objects|Flamsteed objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects |