Lambda Tau
Observable Variable Star
Excellent (67/100)
Range: 3.4 - 3.9, Period: 4.0d, Type: EA/DM
HIP 18724; Lambda Tau; 35 Tau
VariableStar
Tau
Visible
Level 1
Naked eye / Binoculars - Monitor brightness changes
Physical Properties
Magnitude
3.47
Range
3.4 - 3.9
Period
3.953 days
Variable Type
Eclipsing Binary (Algol-type)
Spectral Type
B4IV
Star Color
Blue-white
(B-V -0.12)
Distance
483.5 ly
Position & Identifiers
RA
04h 00m 40.8s
Dec
+12° 29' 25.0"
Constellation
Tau
HR
1239
HIP
18724
Bayer
Lambda
Flamsteed
35 Tau
Variable ID
Lam Tau
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Visibility
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Light Curve
Comparison Stars for Lambda Tau (3.3–3.8)
Nearby stable stars for estimating brightness (AAVSO)
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Size Comparison
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Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
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Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Notes
EA 3.3 - 3.80p, B3V+A, 3.952955d, i 86d.
3.9540d, K 55.4k/s, V0 +15.2k/s, asini 2.99. RV also varies in 33.025d, triple system. Masses 6.8, 1.8 and about 1 | solar.
0.0042".
Survey Image
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