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  Dauban V171  
Cygnus Sequence
21 24 54.79 +46 23 47.4  (321.22829 +46.39650) Search nearby
B1950.0 21 23 05.06 +46 10 48.6
Proper motion
RA: -1.5 +/- 7.4 mas/yDec: -1.4 +/- 7.1 mas/ySource: UCAC4
Galactic coord. 90.152 -2.912
Other names

(Internal only)
2MASS J21245478+4623475 AKARI-IRC-V1 J2124548+462347 GSC2.3 N31G094716
MSX6C G090.1515-02.9123 NSVS 5860878 UCAC4 682-102837
USNO-B1.0 1363-0420948 WISE J212454.78+462347.5  
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Variability type
Spectral type --
Mag. range
14.2 - <17.5 V
Discoverer Ivan Adamin, Siarhey Hadon, VS-COMPAS Team
19 Dec 1999 (HJD 2451532.00) Ephemeris
Outburst --
Period 149.78 d
Rise/eclipse dur. --
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1 Siarhey, Hadon J-K = 1.66. NSVS magnitudes contaminated by 2MASS J21245238+4624154 (J-K= 1.02, V= 14.7, sep. 38") and 2MASS J21244963+4623437 (J-K= 1.32, V= 14.4, sep. 53"). Range has been corrected.
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1 Northern Sky Variability Survey, Wozniak, P.R., et al., 2004 2004AJ....127.2436W
2 J. Caron, F. Kugel, 2013, Dauban survey (online data) --
3 J. Caron, F. Kugel, 2013, Dauban survey --
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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 = 9.08H = 7.98K = 7.42J - K = 1.66
AllWISE W1 = 6.56W2 = 6.24W3 = 5.75W4 = 5.33W1 - W2 = 0.33W3 - W4 = 0.42
APASS-DR9 V = 14.32g' = 15.46r' = 13.34i' = 11.45
Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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1 Phase plot Siarhey, Hadon 2013-09-03 09:11 UTC
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Revision History
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2 Siarhey, Hadon 2013-08-30 23:40 UTC Type, period, epoch and maximum magnitude from NSVS, Dauban and APASS data. Minimum magnitude from YB6. UCAC4 position.
1 Admin, VSX 2013-06-26 20:52 UTC Preserved original object data.