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  DO Dra  
000-BBS-357 (64944 observations)  
Draco Sequence
11 43 38.49 +71 41 20.6  (175.91039 +71.68904) Search nearby
B1950.0 11 40 48.82 +71 57 59.2
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 1SWXRT J114338.2+714119 1SXPS J114338.2+714118
1WGA J1143.6+7141 2MASS J11433849+7141205 2RXP J114338.4+714122
2RXS J114338.4+714124 AAVSO 1137+72 Downes DO Dra
FBS 1140+719 PBC J1143.6+7141 PG 1140+719
RX J1143.6+7141 Swift J1142.7+7149 X 11407+720
X 11500+720 XMMSL2 J114337.9+714118 YY Dra
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Variability type
Spectral type WD+M4V
Mag. range
10.0 - 17.2 V
Discoverer --
Outburst --
Period 0.165374 d  (3.9690 h)
Rise/eclipse dur. --
Some references may be clicked to view in new window. Roll over index number to view submission details.
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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Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Gaia Collaboration; et al., 2018, Gaia Data Release 2. Summary of the
contents and survey properties
2 V. V. Breus; I. L. Andronov; J.-N. Yoon; et al., 2017, ATel #10477 2017ATel10477....1B
3 “Tsessevich” Project: an Attempt to Find the System YY Dra. I 2011arXiv1102.1271V
4 S. Scaringi et al., 2009, arXiv:0910.0954v1 [astro-ph.GA] 2009arXiv0910.0954S
5 Andronov, I. L.; et al., 2008, Multiple timescales in cataclysmic binaries.
The low-field magnetic dwarf nova DO Draconis
6 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
7 X-Ray/Optical Studies of Two Outbursts of the Intermediate Polar YY (DO)
8 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
9 W.Wenzel, MVS 9,H.5,141,1983. --
10 K. Mukai, The Intermediate Polars --
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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 = 13.21H = 12.62K = 12.33J - K = 0.89
AllWISE W1 = 11.97W2 = 11.74W3 = 11.28W1 - W2 = 0.23
APASS-DR9 B = 15.36V = 15.29g' = 15.47r' = 15.05i' = 14.58B - V = 0.07
GALEX-DR5 FUV = 15.76NUV = 15.72FUV - NUV = 0.04
SDSS-DR12 u = 15.23g = 15.56r = 15.05i = 14.60z = 14.18u - g = -0.32r - i = 0.45
Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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 Legacy CVs
Revision History
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8 Otero, Sebastian Alberto 2020-05-14 19:51 UTC Gaia DR2 position.
7 Schmeer, Patrick 2019-06-08 09:10 UTC Gaia DR2 position. Minimum magnitude from AAVSO V data.
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.