Beta Serpentis

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β Serpentis
Location of β Serpentis (circled)
Observation data
ICRS
)
Constellation Serpens
Right ascension 15h 46m 11.25435s[1]
Declination +15° 25′ 18.5959″[1]
Apparent magnitude (V) +3.65[2] (3.68 + 9.7)[3]
Characteristics
Spectral type A2 V[4] or A2 IV[5] + K3 V[3]
U−B color index +0.09[2]
B−V color index +0.073[4]
Distance
155 ± 2 ly
(47.6 ± 0.6 pc)
Absolute magnitude (MV)+0.30/+6.59[7]
Details
Myr
HR 5867, SAO 101725, ADS 9778, CCDM 15461+1525[9]
Database references
SIMBADdata

Beta Serpentis,

Ursa Major Moving Group.[7]

Components

The visual magnitude +3.68 primary, component A, is either an ordinary

projected rotational velocity of 207 km/s.[4]

The secondary component, visual magnitude 9.7 B, lies at an

main-sequence star with a class of K3 V.[3]

There is a magnitude +10.98

arcseconds away.[10]

Nomenclature

It was a member of indigenous Arabic asterism al-Nasaq al-Sha'āmī, "the Northern Line" of al-Nasaqān "the Two Lines",[11] along with β Her (Kornephoros), γ Her (Hejian, Ho Keen) and γ Ser (Zheng, Ching).[12]

According to the catalogue of stars in the Technical Memorandum 33-507 - A Reduced Star Catalog Containing 537 Named Stars, al-Nasaq al-Sha'āmī or Nasak Shamiya were the title for three stars :β Ser as Nasak Shamiya I, γ Ser as Nasak Shamiya II, γ Her as Nasak Shamiya III (exclude β Her).[13]

In

21 Capricorni in Twelve States (asterism).[18]

References

  1. ^
    S2CID 18759600
    .
  2. ^
    doi:10.1086/112066
    .
  3. ^
    S2CID 14878976
    .
  4. ^
    S2CID 16600591
    , 58.
  5. ^
    doi:10.1086/191237
    .
  6. S2CID 119231169
    .
  7. ^
    doi:10.1086/368241
    .
  8. ^
    S2CID 33401607
    .
  9. ^ "bet Ser". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-09-22.{{cite web}}: CS1 maint: postscript (link)
  10. doi:10.1086/323920
  11. ISBN 1-931559-44-9
    .
  12. ISBN 0-486-21079-0
    , retrieved 2017-09-22.
  13. ^ Rhoads, Jack W. (November 15, 1971), Technical Memorandum 33-507-A Reduced Star Catalog Containing 537 Named Stars (PDF), California Institute of Technology: Jet Propulsion Laboratory.
  14. ISBN 978-986-7332-25-7
    .
  15. ISBN 0-486-21079-0
    , retrieved 2017-09-22.
  16. ^ (in Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 6 月 24 日
  17. ^ (in Chinese) English-Chinese Glossary of Chinese Star Regions, Asterisms and Star Name Archived 2010-08-10 at the Wayback Machine, Hong Kong Space Museum. Accessed on line November 23, 2010.
  18. ISBN 0-486-21079-0
    , retrieved 2017-09-22.
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