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Name
  TV Boo  
AAVSO UID
000-BBV-295 (35886 observations)  
Constellation
Bo÷tes Sequence
J2000.0
14 16 36.58 +42 21 35.7  (214.15242 +42.35992) Search nearby
B1950.0 14 14 37.00 +42 35 29.2
Proper motion
RA: -4.133 +/- 0.120 mas/yDec: -33.750 +/- 0.144 mas/ySource: Gaia DR1
Galactic coord. 79.730 +66.923
Other names

(Internal only)
AAVSO 1412+42 AN 37.1926 HIP 69759
IOMC 3038000042    
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Variability type
RRC/BL
Spectral type A7-F2
Mag. range
10.57 - 11.23 V
Discoverer --
Epoch
31 Mar 2009 (HJD 2454922.2334) Ephemeris
Outburst --
Period 0.3125615 d  (7.50148 h)
Rise/eclipse dur. 35%  (2.626 h)
Remarks
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1 Otero, Sebastian Alberto Blazhko period 9.7374 d. with a modulation of 21.5 d.
2 GCVS Team B - V: +0.10, +0.22. [Fe/H] = -2.42. Blazhko effect, Pi = 16.14d [B.N.Firmanyuk, Astron. Tsirk. N843, 1974.].
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References
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1 Skarka, M.; Zejda, M., 2012, Photometric study of the star with changing
Blazhko effect: TV Bootis
2012MNRAS.tmp...95S
2 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
3 V.P.Yudkina, Perem. Zvezdy 9, N5, 914, 1954. --
4 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
External Links
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 10.33H = 10.22K = 10.18J - K = 0.15
AllWISE W1 = 10.17W2 = 10.19W3 = 10.15W1 - W2 = -0.02
APASS-DR9 B = 11.17V = 11.05g' = 10.96r' = 11.03i' = 11.04B - V = 0.12
GALEX-DR5 FUV = 16.85NUV = 14.02FUV - NUV = 2.83
SDSS-DR12 u = 14.62g = 11.21r = 10.96i = 11.00z = 13.16u - g = 3.41r - i = -0.04
Images
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Supporting Documents
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Revision History
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4 Admin, VSX 2015-12-18 21:45 UTC Updated variability type to indicate Blazhko effect.
3 Otero, Sebastian Alberto 2012-11-14 20:15 UTC Range and elements from 2012MNRAS.tmp...95S.
2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.