Chi Tau
Observable Double Star
Excellent (61/100)
Sep: 19.4", Companion: mag 8.5
HIP 20430; Chi Tau; 59 Tau
DoubleStar
Tau
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
5.37
Spectral Type
B9V
Star Color
Blue-white
(B-V -0.05)
Position & Identifiers
RA
04h 22m 34.9s
Dec
+25° 37' 45.0"
Constellation
Tau
HR
1369
HIP
20430
Bayer
Chi
Flamsteed
59 Tau
Double Cat
3161
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Visibility
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Multiple Star System
Components
3
Separation
19.4″
Companion Mag
8.5
Companion Sp
F8V
Position Angle
25°
Star Colors
A: Blue-white
B: Yellow
Discoverer
STF 528
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 19.4″ · PA: 25° · 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
CPM. Component A suspected occultation double; component B, G2V, strong lithium.
ADS 3161B, +36.8k/s.
Survey Image
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