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Name
  V Boo  
AAVSO UID
000-BBV-464 (79870 observations)  
Constellation
Boötes Sequence
J2000.0
14 29 45.27 +38 51 40.6  (217.43863 +38.86128) Search nearby
B1950.0 14 27 44.16 +39 05 00.0
Proper motion
RA: 12.96 +/- 0.64 mas/yDec: -18.41 +/- 0.71 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 68.956 +66.393
Other names

(Internal only)
AAVSO 1425+39 ASASSN-V J142945.18+385140.5 BD+39 2773
HD 127335 HIP 70885 IRC +40257
RAFGL 4947S SAO 64180  
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Variability type
SRB
Spectral type M6e
Mag. range
7.0 - 11.0 V
Discoverer Nils Christoffer Dunér
Epoch
03 May 2016 (HJD 2457512.0) Ephemeris
Outburst --
Period 258.4 d
Rise/eclipse dur. 49%  (127 d)
Remarks
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1 Otero, Sebastian Alberto Amplitude modulation caused by the beating of P= 257.8 and 259.2 d. Secondary period 137.1 d. Period in the table is the mean period from all AAVSO data (1904-2023).
2 GCVS Team P var. Amplitude strongly varies.
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References
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1 Greaves, J., 2019, V Boötis Revisited 2019BAAVC.180...16G
2 Duner, N. C., 1886, Über den veränderlichen Stern DM.+ 39°.2773 im Bootes 1886AN....114..325D
3 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.		 --
External Links
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Location    Go   
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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 = 2.17H = 1.26K = 1.03J - K = 1.13
AllWISE W3 = 0.16W4 = -0.34W3 - W4 = 0.50
SDSS-DR12 u = 13.34g = 9.66r = 7.73i = 10.07z = 5.91u - g = 3.68r - i = -2.34
Images
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Supporting Documents
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Campaigns/Programs
 Legacy LPV Program
 LPV Program
 Percy's Unusual LPVs
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Otero, Sebastian Alberto 2023-11-30 17:54 UTC Type from 2019BAAVC.180...16G. Period, epoch and range from AAVSO data.
3 van Ballegoij, Erwin J 2018-12-19 23:31 UTC Discoverer from 1886AN....114..325D.
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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