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Name
  lam Tau  
AAVSO UID
000-BFN-243 (2506 observations)  
Constellation
Taurus Sequence
J2000.0
04 00 40.82 +12 29 25.3  (60.17008 +12.49036) Search nearby
B1950.0 03 57 54.40 +12 21 02.2
Proper motion
RA: -8.02 +/- 0.24 mas/yDec: -14.42 +/- 0.16 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 178.372 -29.376
Other names

(Internal only)
35 Tau AAVSO 0355+12 AAVSO_ALIAS LAMBDA TAU
BD+12 539 HD 25204 HIP 18724
HR 1239 SAO 93719  
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Variability type
EA/DM
Spectral type B3V+A4IV
Mag. range
3.37 - 3.91 V
Discoverer --
Epoch
05 Oct 1917 (HJD 2421506.8506) Ephemeris
Outburst --
Period 3.9529478 d
Rise/eclipse dur. 15%
Remarks
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1 GCVS Team Min II 3.54. Triple system. The eclipsing system rotates around the third component with P = 33.025d [E.G.Ebbighausen, O.Struve, ApJ 124, 507, 1956.]. In the region of the Hyades cluster.
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References
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1 J.M.Kreiner, J.Ziolkowski, AA 28, N4, 497, 1978. 1978AcA....28..497K
2 Bob Nelson's O-C files, 2016 --
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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 = 3.57H = 3.65K = 3.65J - K = -0.08
AllWISE W1 = 3.74W2 = 3.48W3 = 3.85W4 = 3.77W1 - W2 = 0.27W3 - W4 = 0.08
Images
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Supporting Documents
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Revision History
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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.