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Latest Details
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Name
  Y Tau  
AAVSO UID
000-BBK-127 (18621 observations)  
Constellation
Taurus Sequence
J2000.0
05 45 39.41 +20 41 42.1  (86.41421 +20.69503) Search nearby
B1950.0 05 42 40.52 +20 40 33.2
Proper motion
RA: -1.81 +/- 1.34 mas/yDec: -5.05 +/- 0.77 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 187.052 -4.276
Other names

(Internal only)
AAVSO 0539+20 BD+20 1083 HD 38307
HIP 27181 HR 1977 IRC +20121
RAFGL 5168 SAO 77516  
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Variability type
SRB
Spectral type C6.5,4e(N3)
Mag. range
6.4 - 7.3 V
Discoverer --
Epoch
08 Nov 2004 (HJD 2453318) Ephemeris
Outburst --
Period 245 d
Rise/eclipse dur. 45%:
Remarks
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References
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1 C. Koen, L. Eyer, 2002, MNRAS 331, 45 2002MNRAS.331...45K
2 S.Gaposchkin, HA 118, N16, 1952. 1952AnHar.118...25G
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 = 2.05H = 0.79K = 0.35J - K = 1.69
AllWISE W3 = -0.99W4 = -1.77W3 - W4 = 0.78
APASS-DR9 B = 10.28
Images
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Supporting Documents
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Campaigns/Programs
 Binocular program
 Legacy LPV Program
 LPV Program
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Otero, Sebastian Alberto 2011-09-06 06:24 UTC Period, epoch, range and rise duration from ASAS-3 data.
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.