7 Tau
HIP 16664; 7 Tau
DoubleStar
Tau
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
5.92
Spectral Type
A3V+A3V
Star Color
White
(B-V 0.13)
Distance
543.6 ly
Position & Identifiers
RA
03h 34m 26.6s
Dec
+24° 27' 52.0"
Constellation
Tau
HR
1086
HIP
16664
Flamsteed
7 Tau
Double Cat
2616
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
0.8″
Companion Mag
6.9
Companion Sp
A3V
Position Angle
349°
Star Colors
A: White
B: White
Discoverer
STF 412
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.8″ · PA: 349° · N up, E left
Unresolved · 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
AB 6.6 A3V, 6.7 A3V, 568.22y, a = 0.650" or 600y, a = 0.719". Combined mag., colors. C, 9.9v at 22" physical.
0.005".
Survey Image
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