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Name
DO Dra
AAVSO UID
Constellation
J2000.0
B1950.0
11 40 48.82 +71 57 59.2
Proper motion
RA: 16.9 +/- 2.0 mas/y Dec: 10.9 +/- 2.2 mas/y Source: 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
UG/DQ
Spectral type
WD+M4V
Mag. range
10.0 - 17.2 V
Discoverer
--
Epoch
Outburst
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Period
0.165374 d (3.9690 h)
Rise/eclipse dur.
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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
Kato, T.; Pavlenko, E. P., 2022, On the identity of Tsesevich's "YY Dra"
2022arXiv220305091K
2
Gaia Collaboration; et al., 2018, Gaia Data Release 2. Summary of the
2018A&A...616A...1G
3
V. V. Breus; I. L. Andronov; J.-N. Yoon; et al., 2017, ATel #10477
2017ATel10477....1B
4
“Tsessevich” Project: an Attempt to Find the System YY Dra. I
2011arXiv1102.1271V
5
S. Scaringi et al., 2009, arXiv:0910.0954v1 [astro-ph.GA]
2009arXiv0910.0954S
6
Andronov, I. L.; et al., 2008, Multiple timescales in cataclysmic binaries.
2008A&A...486..855A
7
R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version)
2005JAD....11....2D
8
X-Ray/Optical Studies of Two Outbursts of the Intermediate Polar YY (DO)
2002AJ....123..413S
9
R.A. Downes et al., 2001, PASP 113, 764
2001PASP..113..764D
10
W.Wenzel, MVS 9,H.5,141,1983.
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11
K. Mukai, The Intermediate Polars
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External Links
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Location
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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 = 13.21 H = 12.62 K = 12.33 J - K = 0.89
AllWISE
W1 = 11.97 W2 = 11.74 W3 = 11.28 W1 - W2 = 0.23
APASS-DR9
B = 15.36 V = 15.29 g' = 15.47 r' = 15.05 i' = 14.58 B - V = 0.07
GALEX-DR5
FUV = 15.76 NUV = 15.72 FUV - NUV = 0.04
SDSS-DR12
u = 15.23 g = 15.56 r = 15.05 i = 14.60 z = 14.18 u - g = -0.32 r - i = 0.45
Images
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Supporting Documents
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Campaigns/Programs
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Revision History
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