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Latest Details
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Name
  W Dra  
AAVSO UID
000-BCB-214 (12297 observations)  
Constellation
Draco Sequence
J2000.0
18 05 34.66 +65 57 21.9  (271.39442 +65.95608) Search nearby
B1950.0 18 05 30.63 +65 56 56.9
Proper motion
RA: 0.9 +/- 2.0 mas/yDec: 15.3 +/- 0.6 mas/ySource: UCAC4
Galactic coord. 95.698 +29.242
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 1805+65 AN 6.1902 BD+65 1241
HD 166407 IOMC 4213000049 NSVS J1805350+655724
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Variability type
M
Spectral type M3e-M4e
Mag. range
8.9 - 15.4 V
Discoverer --
Epoch
08 May 1974 (HJD 2442176) Ephemeris
Outburst --
Period 278.6 d
Rise/eclipse dur. 43%  (119.798000000000 d)
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 GCVS Team P var. Max = 2416748 + 257.11d*E (JD2416750 - 21390); Max = 2430826 + 262.11d*E (JD2421390 - 30820); Max = 2439962 + 268.87d*E (JD2430820 - 40490); since JD2440490 - see Table.
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
2 P.R. Wozniak, S.J. Williams, W.T. Vestrand, V. Gupta, AJ 128, 2965, 2004 2004AJ....128.2965W
3 T. Karlsson, Maxima of Mira stars --
4 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
External Links
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Location    Go   
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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 = 7.03H = 6.26K = 5.69J - K = 1.34
AllWISE W1 = 5.07W2 = 4.10W3 = 3.41W4 = 2.65W1 - W2 = 0.97W3 - W4 = 0.75
APASS-DR9 B = 16.98V = 15.85g' = 17.04r' = 14.45i' = 11.18B - V = 1.12
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 18 05 34.66 +65 57 21.9 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Campaigns/Programs
 LPV Program
 Percy's Unusual LPVs
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
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.