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{{DISPLAYTITLE:Psi<sup>1</sup> Piscium}}
{{DISPLAYTITLE:Psi<sup>1</sup> Piscium}}
{{for|other stars with this [[Bayer designation]]|psi Piscium{{!}}ψ Piscium}}
{{for|other stars with this [[Bayer designation]]|psi Piscium{{!}}ψ Piscium}}
{{Starbox begin
{{Starbox begin|name=Psi<sup>1</sup> Piscium}}
⚫
| name=Psi<sup>1</sup> Piscium
⚫
}}
{{Starbox image
{{Starbox image
| image =
| image =
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| caption=Location of ψ<sup>1</sup> Piscium (circled)
| caption=Location of ψ<sup>1</sup> Piscium (circled)
}}
}}
{{Starbox short
{{Starbox observe 2s
⚫
|epoch=[[J2000]]
| name=
⚫
|constell=[[Pisces (constellation)|Pisecs]]
⚫
| epoch=[[J2000.0]]
|component1=ψ<sup>1</sup> Psc A
⚫
| constell=[[Pisces (constellation)|Pisces]]
|ra1={{RA|01|05|40.95527}}<ref name=HIP/>
| ra=01<sup>h</sup> 05<sup>m</sup> 40.93<sup>s</sup>
| dec=+21° 28' 23.6"
|dec1={{DEC|+21|28|23.4489}}<ref name=HIP/>
|appmag_v1=5.273<ref name=TYC2>{{cite journal|title=The Tycho-2 catalogue of the 2.5 million brightest stars|author=Høg, E.|display-authors=etal|date=2000|journal=Astronomy and Astrophysics|volume=355|pages=L27–L30|bibcode=2000A&A...355L..27H}}</ref>
| spectral=A1Vn
|component2=ψ<sup>1</sup> Psc B
| appmag_v=+5.33
|ra2={{RA|01|05|41.71098}}<ref name=HIP/>
| dist_ly=238
|dec2={{DEC|+21|27|55.5987}}<ref name=HIP/>
| dist_pc=73
|appmag_v2=5.455<ref name=TYC2/>
| names= ψ<sup>1</sup>&nbsp;Piscium, 74&nbsp;Piscium, [[Durchmusterung|BD]]+20°156, [[Catalog of Components of Double and Multiple Stars|CCDM]]&nbsp;J01057+2128A, [[Boss General Catalogue|GC]]&nbsp;1309, [[Henry Draper Catalogue|HD]]&nbsp;6456, [[Hipparcos Catalogue|HIP]]&nbsp;5131, [[Bright Star Catalogue|HR]]&nbsp;310, [[Index Catalogue of Visual Double Stars|IDS]]&nbsp;00434+0703 A, [[PPM Star Catalogue|PPM]]&nbsp;143916, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]]&nbsp;74482, [[Washington Double Star Catalog|WDS]]&nbsp;J01057+2128Aa,Ab.
⚫
}}
{{Starbox character
|component=ψ<sup>1</sup> Psc A
|class=A1V + A4V<ref name=Horch>{{cite journal|bibcode=2011AJ....141...45H|doi=10.1088/0004-6256/141/2/45|title=Observations of Binary Stars with the Differential Speckle Survey Instrument. Ii.hipparcosstars Observed in 2010 January and June|journal=The Astronomical Journal|volume=141|issue=2|pages=45|year=2011|last1=Horch|first1=Elliott P.|last2=Gomez|first2=Shamilia C.|last3=Sherry|first3=William H.|last4=Howell|first4=Steve B.|last5=Ciardi|first5=David R.|last6=Anderson|first6=Lisa M.|last7=Van Altena|first7=William F.}}</ref>
|b-v=-0.04<ref name=UBV>{{cite journal|bibcode=1964ApJ...139.1105T|title=A UBV Study of 94 Wide Visual Binaries|journal=Astrophysical Journal|volume=139|page=1105|author1=Tolbert, C. R.|year=1964|doi=10.1086/147852}}</ref>
|u-b=-0.12<ref name=UBV/>
}}
{{Starbox character|no_heading=y
|component=ψ<sup>1</sup> Psc B
|class=A0Vn<ref name=SimbadB>{{cite simbad|title=* 74 Psc B|accessdate=24 May 2017}}</ref>
|b-v=-0.06<ref name=UBV/>
|u-b=-0.17<ref name=UBV/>
}}
{{Starbox astrometry
|component1=ψ<sup>1</sup> Psc A
|radial_v=-3.90 ± 2.9<ref name=Gontcharov>{{cite journal|url=http://adsabs.harvard.edu/abs/2006AstL...32..759G|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}}</ref>
|prop_mo_ra=44.49<ref name=HIP>{{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|author=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}}</ref>
|prop_mo_dec=-14.82<ref name=HIP/>
|parallax=11.86
|p_error=0.68
|parallax_footnote=<ref name=HIP/>
|absmag_v=
|component2=ψ<sup>1</sup> Psc B
|radial_v2=-7.20 ± 3.6<ref name=Kharchenko>{{cite journal|title=Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ~55000 stars and mean radial velocities of 516 Galactic open clusters and associations|author=Kharchenko, N. V.|display-authors=etal|journal=Astronomische Nachrichten|volume=328|issue=9|page=889|date=2007|bibcode=2007AN....328..889K|doi=10.1002/asna.200710776|arxiv=0705.0878}}</ref>
|prop_mo_ra2=52.88<ref name=HIP/>
|prop_mo_dec2=-11.88<ref name=HIP/>
|parallax2=11.64
|p_error2=0.68
|parallax_footnote2=<ref name=HIP/>
|absmag_v2=
}}
{{Starbox orbit
|reference=<ref name=Horch/>
|primary=ψ<sup>1</sup> Psc Aa
⚫
|name=ψ<sup>1</sup> Psc Ab
|period=14.44 ± 0.26
|axis=114.3 ± 1.7
|inclination=77.43 ± 0.81
|node=134.8 ± 1.2
|periastron=[[Besselian year|B]] 2007.512 ± 0.041
|eccentricity=0.519 ± 0.027
|periarg=305.4 ± 2.3
}}
{{Starbox catalog
|names={{odlist|B=ψ<sup>1</sup> Psc|F=74 Psc|ADS=899 AB|CCDM=J01057+2128}}
|component1=ψ<sup>1</sup> Psc A
|names1={{odlist|BD=+20° 156|HD=6456|HIP=5131|HR=310|SAO=74482}}
|component2=ψ<sup>1</sup> Psc B
|names2={{odlist|BD=+20° 157|HD=6457|HIP=5132|HR=311|SAO=74483}}
}}
{{Starbox reference
|Simbad=*+74+Psc+A|sn=ψ<sup>1</sup> Psc A
|Simbad2=*+74+Psc+B|sn2=ψ<sup>1</sup> Psc B
}}
}}
{{Starbox end}}
{{Starbox end}}
'''Psi<sup>1</sup>&nbsp;Piscium''' ('''Psi<sup>1</sup>&nbsp;Psc''', '''ψ<sup>1</sup>&nbsp;Piscium''', '''ψ<sup>1</sup>&nbsp;Psc''') is [[binary star]] in constellation of [[Pisces (constellation)|Pisces]]. It is approximately 280 [[light years]] from [[Earth]], based on its [[stellar parallax|parallax]].<ref name=HIP/>


'''Psi¹&nbsp;Piscium''' ('''Psi<sup>1</sup>&nbsp;Psc''', '''ψ<sup>1</sup>&nbsp;Piscium''', '''ψ<sup>1</sup>&nbsp;Psc''') is [[binary star]] in constellation of [[Pisces (constellation)|Pisces]], with an [[apparent magnitude]] of +5.33. The primary component is a white [[stellar classification|A-type]] [[main sequence]]. It is approximately 238 [[light years]] from [[Earth]].
The two components of Psi<sup>1</sup> Piscium are both [[A-type main-sequence star]]s.<ref name=Horch/><ref name=SimbadB/> The primary has an [[apparent magnitude]] of 5.273, while the secondary is slightly dimmer, with an apparent magnitude of 5.455.<ref name=TYC2/> The primary itself is a close binary, with two A-type stars that orbit each other every 14.44 years.<ref name=Horch/>


Psi<sup>1</sup> Piscium is moving through the Galaxy at a speed of 22.5 km/s relative to the Sun. Its projected Galactic orbit carries it between 22,800 and 24,300 light years from the center of the Galaxy.<ref name=astrostudio>[http://www.astrostudio.org/xhip.php?hip=5131 Psi-1 Piscium A (HIP 5131)]</ref>
Psi<sup>1</sup> Piscium is moving through the Galaxy at a speed of 22.5 km/s relative to the Sun. Its projected Galactic orbit carries it between 22,800 and 24,300 light years from the center of the Galaxy.<ref name=astrostudio>[http://www.astrostudio.org/xhip.php?hip=5131 Psi-1 Piscium A (HIP 5131)]</ref>

Revision as of 21:00, 24 May 2017

For other stars with this Bayer designation, see ψ Piscium.
Psi1 Piscium
Diagram showing star positions and boundaries of the Pisces constellation and its surroundings
Location of ψ1 Piscium (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Pisecs
ψ1 Psc A
Right ascension 01h 05m 40.95527s[1]
Declination +21° 28′ 23.4489″[1]
Apparent magnitude (V) 5.273[2]
ψ1 Psc B
Right ascension 01h 05m 41.71098s[1]
Declination +21° 27′ 55.5987″[1]
Apparent magnitude (V) 5.455[2]
Characteristics
ψ1 Psc A
Spectral type A1V + A4V[3]
U−B color index -0.12[4]
B−V color index -0.04[4]
ψ1 Psc B
Spectral type A0Vn[5]
U−B color index -0.17[4]
B−V color index -0.06[4]
Astrometry
ψ1 Psc A
Radial velocity (Rv)-3.90 ± 2.9[6] km/s
Proper motion (μ) RA: 44.49[1] mas/yr
Dec.: -14.82[1] mas/yr
Parallax (π)11.86 ± 0.68 mas[1]
Distance280 ± 20 ly
(84 ± 5 pc)
ψ1 Psc B
Radial velocity (Rv)-7.20 ± 3.6[7] km/s
Proper motion (μ) RA: 52.88[1] mas/yr
Dec.: -11.88[1] mas/yr
Parallax (π)11.64 ± 0.68 mas[1]
Distance280 ± 20 ly
(86 ± 5 pc)
Orbit[3]
Primaryψ1 Psc Aa
Companionψ1 Psc Ab
Period (P)14.44 ± 0.26 yr
Semi-major axis (a)114.3 ± 1.7″
Eccentricity (e)0.519 ± 0.027
Inclination (i)77.43 ± 0.81°
Longitude of the node (Ω)134.8 ± 1.2°
Periastron epoch (T)B 2007.512 ± 0.041
Argument of periastron (ω)
(secondary)		305.4 ± 2.3°
Other designations
ψ1 Psc, 74 Psc, ADS 899 AB, CCDM J01057+2128
ψ1 Psc A: BD+20° 156, HD 6456, HIP 5131, HR 310, SAO 74482
ψ1 Psc B: BD+20° 157, HD 6457, HIP 5132, HR 311, SAO 74483
Database references
SIMBADψ1 Psc A
ψ1 Psc B

Psi1 Piscium (Psi1 Psc, ψ1 Piscium, ψ1 Psc) is binary star in constellation of Pisces. It is approximately 280 light years from Earth, based on its parallax.[1]

The two components of Psi1 Piscium are both A-type main-sequence stars.[3][5] The primary has an apparent magnitude of 5.273, while the secondary is slightly dimmer, with an apparent magnitude of 5.455.[2] The primary itself is a close binary, with two A-type stars that orbit each other every 14.44 years.[3]

Psi1 Piscium is moving through the Galaxy at a speed of 22.5 km/s relative to the Sun. Its projected Galactic orbit carries it between 22,800 and 24,300 light years from the center of the Galaxy.[8]

Naming

In Chinese, 奎宿 (Kuí Sù), meaning Legs (asterism), refers to an asterism consisting of refers to an asterism consisting of ψ1 Piscium, η Andromedae, 65 Piscium, ζ Andromedae, ε Andromedae, δ Andromedae, π Andromedae, ν Andromedae, μ Andromedae, β Andromedae, τ Piscium, 91 Piscium, υ Piscium, φ Piscium and χ Piscium. Consequently, ψ1 Piscium itself is known as 奎宿十六 (Kuí Sù shíliù, English: the Sixteenth Star of Legs.)[9]

References

  1. ^ a b c d e f g h i j k van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
  2. ^ a b c Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.
  3. ^ a b c d Horch, Elliott P.; Gomez, Shamilia C.; Sherry, William H.; Howell, Steve B.; Ciardi, David R.; Anderson, Lisa M.; Van Altena, William F. (2011). "Observations of Binary Stars with the Differential Speckle Survey Instrument. Ii.hipparcosstars Observed in 2010 January and June". The Astronomical Journal. 141 (2): 45. Bibcode:2011AJ....141...45H. doi:10.1088/0004-6256/141/2/45.
  4. ^ a b c d Tolbert, C. R. (1964). "A UBV Study of 94 Wide Visual Binaries". Astrophysical Journal. 139: 1105. Bibcode:1964ApJ...139.1105T. doi:10.1086/147852.
  5. ^ a b "* 74 Psc B". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 24 May 2017.
  6. ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
  7. ^ Kharchenko, N. V.; et al. (2007). "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ~55000 stars and mean radial velocities of 516 Galactic open clusters and associations". Astronomische Nachrichten. 328 (9): 889. arXiv:0705.0878. Bibcode:2007AN....328..889K. doi:10.1002/asna.200710776.
  8. ^ Psi-1 Piscium A (HIP 5131)
  9. ^ Template:Zh icon AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 19 日
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