71 Tau
HIP 20713; 71 Tau
DoubleStar
Tau
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
4.49
Range
4.73 - 4.75
Period
3.8 hours
Variable Type
Delta Scuti (Low Amplitude)
Spectral Type
F0V
Star Color
Yellow-white
(B-V 0.25)
Distance
465.9 ly
Position & Identifiers
RA
04h 26m 20.8s
Dec
+15° 37' 06.0"
Constellation
Tau
HR
1394
HIP
20713
Flamsteed
71 Tau
Variable ID
V777 Tau
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Visibility
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Multiple Star System
Components
3
Separation
130.9″
Companion Mag
12.0
Position Angle
154°
Star Colors
A: Yellow-white
Discoverer
BUP 59
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 130.9″ · PA: 154° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
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
Visual primary is occultation double. Component B, 11.1 at 137".
5200d, K 15.1k/s, V0 +40.8k/s, asini 1050. Massive invisible component. Unresolved by speckle interferometry | 1983.93.
In Taurus cluster; Mel 25 #141; the Hyades.
Survey Image
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