HIP 21619
HIP 21619
DoubleStar
Tau
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
6.47
Spectral Type
F2V:
Distance
155.3 ly
Position & Identifiers
RA
04h 38m 29.6s
Dec
+26° 56' 24.0"
Constellation
Tau
HR
1470
HIP
21619
Double Cat
3353
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Visibility
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Multiple Star System
Separation
4.5″
Companion Mag
7.2
Companion Sp
F2V
Position Angle
188°
Star Colors
B: Yellow-white
Discoverer
STF 572
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 4.5″ · PA: 188° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
Size Comparison
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Stellar Lifecycle
Spectral Classification
Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Notes
Occultation indicated mag. diff 0.37v, sep. 2.117" (half the visual sep.) and PA 78d in contrast to visual 194d.
Survey Image
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