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Name
  RW Dra  
AAVSO UID
000-BBX-784 (32635 observations)  
Constellation
Draco Sequence
J2000.0
16 35 31.60 +57 50 23.2  (248.88167 +57.83978) Search nearby
B1950.0 16 34 37.16 +57 56 26.6
Proper motion
RA: -6.216 +/- 0.205 mas/yDec: -9.494 +/- 0.243 mas/ySource: Gaia DR1
Galactic coord. 87.386 +40.600
Other names

(Internal only)
1SWASP J163531.60+575023.1 AAVSO 1633+58 AN 87.1906
HIP 81238    
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Variability type
RRAB/BL
Spectral type A7-F4
Mag. range
11.05 - 12.08 V
Discoverer L. Ceraski (4 July 1906)
Epoch
08 Sep 1966 (HJD 2439377.391) Ephemeris
Outburst --
Period 0.442917 d  (10.6300 h)
Rise/eclipse dur. --
Remarks
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1 GCVS Team P var. Mean elements are given. Composite Blazhko effect; Pi = 93.95P = 41.61d; Pi1 = 280P; Pi2 = 6140P; Pi3 = 3400P [J.Balazs, L.Detre, Bud Mitt N27, 1952.]. 0.11P <= M - m <= 0.32P. Delta(S) = 3.
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References
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1 Greer, P. A.; Payne, S. G.; Norton, A. J.; et al., 2017, The SuperWASP
catalogue of 4963 RR Lyr stars: identification of 983 Blazhko effect
candidates
2017A&A...607A..11G
2 W. Ceraski, 1906, Deux nouvelles variables 1906AN....172...91D
3 SAC N47, 1975. --
4 W.Ceraski, Mosc Ann (2), 5, Kartenserie 3, 1913. --
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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 = 10.67H = 10.65K = 10.63J - K = 0.04
AllWISE W1 = 10.66W2 = 10.67W3 = 10.55W4 = 9.16W1 - W2 = -0.01W3 - W4 = 1.40
APASS-DR9 B = 12.18V = 11.73g' = 11.83r' = 11.61i' = 11.61B - V = 0.45
GALEX-DR5 FUV = 20.40NUV = 15.50FUV - NUV = 4.90
Images
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Supporting Documents
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Revision History
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4 Billiaert, Bruno 2015-12-29 10:47 UTC discoverer added (1906AN....172...91D)
3 Admin, VSX 2015-12-18 21:44 UTC Updated variability type to indicate Blazhko effect.
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.