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Name
Y Dra
AAVSO UID
Constellation
J2000.0
B1950.0
09 36 48.71 +78 04 47.8
Proper motion
RA: 3.8 +/- 2.3 mas/y Dec: -8.9 +/- 2.8 mas/y Source: 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
ASASSN-V J094222.89+775107.3
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
Outburst
--
Period
325.79 d
Rise/eclipse dur.
45% (147 d)
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
K.Reichenbacher, B.Salzungen, MVS 8, H.4, 64, 1978.
--
3
Evans, N. R., 1970, UBV observations of Mira stars.
1970AJ.....75..636E
4
Catalogue of Stellar Spectral Classifications (Skiff, 2005)
1928AnHar..79..161T
5
T. Karlsson, Maxima of Mira stars
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6
General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
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External Links
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Location
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AAVSO WebObs
APASS
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GCVS
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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 = 4.27 H = 3.42 K = 2.75 J - K = 1.52
AllWISE
W3 = 0.85 W4 = 0.21 W3 - W4 = 0.64
APASS-DR9
B = 11.80 V = 10.51 g' = 11.15 B - V = 1.29
Images
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Supporting Documents
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Campaigns/Programs
LPV Program
Revision History
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