Pi Boötis

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Pi Boötis
Observation data
Epoch J2000      Equinox J2000
Constellation
Boötes
Right ascension 14h 40m 43.56087s[1]
Declination +16° 25′ 05.8863″[1]
Apparent magnitude (V) 4.5038[1] (4.893 + 5.761)[2]
Characteristics
Spectral type B9 IIIp (MnHgSi) + A6 V[3]
U−B color index −0.31[4]
B−V color index −0.03[4]
R−I color index −0.02
Distance
approx. 310 ly
(approx. 90 pc)
Absolute magnitude (MV)–0.39[6]
Details
Rotational velocity (v sin i)
14.0[8] km/s
HR 5476, SAO
101139
Database references
SIMBADdata
Database references
SIMBADdata
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

Pi Boötis,

light years from the Sun
.

The brighter primary, component π1 Boötis, has a visual magnitude of 4.89

AU. The odds that is a mere chance alignment is 0.85%.[10]

Pi Boötis has the

Chinese traditional star name
左攝提二 (Zuǒ shè tí èr).

References

  1. ^
    S2CID 18759600
    .
  2. ^
    doi:10.1888/0333750888/2862
    .
  3. ^
    doi:10.1086/161610
    .
  4. ^
    Bibcode:1978A&AS...34....1N
    .
  5. S2CID 119231169
    .
  6. ^
    Bibcode:1998A&A...334..181N
    .
  7. ^
    S2CID 54940439
    .
  8. ^
    doi:10.1093/mnras/stw911
  9. ^ "pi Boo". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-10-18.
  10. ^
    S2CID 119273467
    , A85
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