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Name
  Y Dra  
AAVSO UID
000-BBQ-647 (8295 observations)  
Constellation
Draco Sequence
J2000.0
09 42 22.73 +77 51 07.4  (145.59471 +77.85206) Search nearby
B1950.0 09 36 48.71 +78 04 47.8
Proper motion
RA: 3.8 +/- 2.3 mas/yDec: -8.9 +/- 2.8 mas/ySource: UCAC4
Galactic coord. 133.802 +34.950
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J09422273+7751074 AAVSO 0931+78 AG+78 245
AN 2.1903 FBS 0936+780 FBS L 7-16
GSC 04544-00330 HD 83114 IRAS 09368+7804
NSVS J0942225+775108 RAFGL 1368 TYC 4544-330-1
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Variability type
M
Spectral type M5e
Mag. range
7.5 - 14.9 V
Discoverer L. Ceraski
Epoch
27 Jul 1980 (HJD 2444448.00) Ephemeris
Outburst --
Period 325.79 d
Rise/eclipse dur. 45%
Remarks
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1 Otero, Sebastian Alberto The Vmax= 6.24 in the GCVS coming from Evans (1970) is probably a typo for V= 8.24 because contemporaneous AAVSO visual data at JD 2439922 show the star around v= 8.5.
2 GCVS Team According to visual observations, 7.8m - 15.0m.
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References
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1 P.R. Wozniak, S.J. Williams, W.T. Vestrand, V. Gupta, AJ 128, 2965, 2004 2004AJ....128.2965W
2 Evans, N. R., 1970, UBV observations of Mira stars. 1970AJ.....75..636E
3 Catalogue of Stellar Spectral Classifications (Skiff, 2005) 1928AnHar..79..161T
4 T. Karlsson, Maxima of Mira stars --
5 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
6 K.Reichenbacher, B.Salzungen, MVS 8, H.4, 64, 1978. --
External Links
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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 = 4.27H = 3.42K = 2.75J - K = 1.52
AllWISE W3 = 0.85W4 = 0.21W3 - W4 = 0.64
APASS-DR9 B = 11.80V = 10.51g' = 11.15B - V = 1.29
Images
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Supporting Documents
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Campaigns/Programs
 LPV Program
Revision History
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4 Billiaert, Bruno 2015-12-28 11:49 UTC discoverer added (1903AN....161..127C)
3 Otero, Sebastian Alberto 2014-03-03 00:53 UTC Range from AAVSO data. UCAC4 position.
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.