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Name
  DO Dra  
AAVSO UID
000-BBS-357 (41209 observations)  
Constellation
Draco Sequence
J2000.0
11 43 38.51 +71 41 20.6  (175.91046 +71.68906) Search nearby
B1950.0 11 40 48.84 +71 57 59.3
Proper motion
RA: 16.9 +/- 2.0 mas/yDec: 10.9 +/- 2.2 mas/ySource: UCAC4
Galactic coord. 130.304 +44.456
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
1RXS J114338.6+714125 2MASS J11433849+7141205 AAVSO 1137+72
Downes DO Dra PG 1140+719 X 11407+720
X 11500+720    
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Variability type
UG/DQ
Spectral type WD+M4V
Mag. range
10.0 - 16.9 V
Discoverer --
Epoch
--
Outburst --
Period 0.165374 d  (3.9690 h)
Rise/eclipse dur. --
Remarks
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1 Andronov, Ivan "Transient periodic oscillations" with frequency changing from 86 to 47 cycles/day. Outburst cycle ranges from 311 to 422 d. Quiescent data show a photometric wave with a cycle ~303(15) d. Correlation between the decay time dt/dm and the outburst maximum brightness with a slope d(dt/dm)/dm = 0.37(9) (2008A&A...486..855A).
2 Otero, Sebastian Alberto The star is probably the same as YY Dra that was classified as an EA with a range 12.9 - <14.5 p by Tsessevich. Tsessevich variable is lost and the CV was named DO Dra. The GCVS keeps both entries separated so care should be taken not to confuse one for the other.
3 2009arXiv0910.0954S White dwarf spin period = 529.31 seconds.
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References
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1 V. V. Breus; I. L. Andronov; J.-N. Yoon; et al., 2017, ATel #10477 2017ATel10477....1B
2 “Tsessevich” Project: an Attempt to Find the System YY Dra. I 2011arXiv1102.1271V
3 S. Scaringi et al., 2009, arXiv:0910.0954v1 [astro-ph.GA] 2009arXiv0910.0954S
4 Andronov, I. L.; et al., 2008, Multiple timescales in cataclysmic binaries.
The low-field magnetic dwarf nova DO Draconis
2008A&A...486..855A
5 R.A.Downes, 2001, PASP 113, 764 (2006 archival) 2005JAD....11....2D
6 X-Ray/Optical Studies of Two Outbursts of the Intermediate Polar YY (DO)
Draconis
2002AJ....123..413S
7 R.A.Downes, 2001, PASP 113, 764 2001PASP..113..764D
8 K. Mukai, The Intermediate Polars --
9 W.Wenzel, MVS 9,H.5,141,1983. --
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Supporting Documents
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Campaigns/Programs
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Revision History
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6 Otero, Sebastian Alberto 2017-06-09 23:15 UTC Minimum magnitude from AAVSO V data.
5 Otero, Sebastian Alberto 2011-05-20 15:03 UTC Remark on identification problem and reference added.
4 Otero, Sebastian Alberto 2011-05-18 00:22 UTC Primary record creation. Variability and spectral type from reference. Range from AAVSO V-data. UCAC3 position.
3 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2009-10-08 22:29 UTC Orbital period from [2009arXiv0910.0954S].
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.