Kappa Tau
HIP 20635; Kappa1 Tau; 65 Tau
Good (49/100)
HIP 20635; Kappa1 Tau; 65 Tau
DoubleStar
Taurus
(Tau)
Visible
Level 1
Naked eye / Binoculars - Requires steady seeing
Physical Properties
Magnitude
4.22
Variable Type
Delta Scuti (Pulsating)
Spectral Type
A7IV-V
Star Color
White
(B-V 0.13)
Distance
130 ly
Position & Identifiers
RA
04h 25m 22.1s
Dec
+22° 17' 38.0"
Constellation
Taurus
(Tau)
HR
1387
HIP
20635
Bayer
Kappa1
Flamsteed
65 Tau
Double Cat
3201
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Visibility
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Multiple Star System
Components
6
Component IDs
O
Separation
339.4″
Companion Mag
5.3
Position Angle
174°
Star Colors
A: White
Discoverer
STF 541
Eyepiece View
32x
Dawes: 1.9″
TFOV: 1.6°
Realistic = true angular size
Sep: 339.4″ · PA: 174° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
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 Fusion
Stellar Notes
Delta Sct?
Kappa1 Tau is occultation double. Together with Kappa2 = HR 1388 they form a multiple system of at least | 6 components.
In Hyades cluster; Mel 25 #54.
Light Travel Time Machine
Relativistic Travel
Survey Image
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