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Name
  ksi Boo  
AAVSO UID
000-BCT-937 (1079 observations)  
Constellation
Boötes Sequence
J2000.0
14 51 23.40 +19 06 02.0  (222.84750 +19.10056) Search nearby
B1950.0 14 49 05.42 +19 18 20.2
Galactic coord. 23.086 +61.356
Other names

(Internal only)
37 Boo AAVSO 1446+19 ADS 9413 AB
BD+19 2870 GJ 566.0 AB HD 131156
HIP 72659 HR 5544 SAO 101250
SVS 2491    
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Variability type
BY:
Spectral type G8V+K4V
Mag. range
4.52 - 4.67 V
Discoverer --
Epoch
--
Outburst --
Period 10.137 d
Rise/eclipse dur. --
Remarks
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1 GCVS Team ADS 9413 AB (4.7m, G8V; 6.6m, K4V; A = 4.884", P = 149.95a). LiI lambda 6708 line is present in the G8V spectrum. Both spectra show manifestations of chromospheric activity, emissions of H and K Ca II. Soft X-ray source. Probably it is component A that is variable, though variability of H and K CaII emission with the cycle 10 - 11 years is observed for component B.
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References
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1 R.de la Reza, C.A.O.Torres, I.C.Busko, MN 194, 829, 1981. 1981MNRAS.194..829D
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Supporting Documents
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Revision History
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2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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