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Lambda Tau

Observable Variable Star Excellent (72/100)

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
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Physical Properties

Magnitude 3.47
Range 3.4 - 3.9
Period 4.0 days
Variable Type Eclipsing Binary (Algol-type)
Spectral Type B4IV
Star Color Blue-white (B-V -0.12)
Distance 484 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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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".

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