80 Tau
Observable Double Star
Fair (21/100)
Sep: 1.3", Companion: mag 8.1
HIP 20995; 80 Tau
DoubleStar
Tau
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
5.58
Spectral Type
F0V
Star Color
Yellow-white
(B-V 0.32)
Distance
105.2 ly
Position & Identifiers
RA
04h 30m 08.6s
Dec
+15° 38' 17.0"
Constellation
Tau
HR
1422
HIP
20995
Flamsteed
80 Tau
Double Cat
3264
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Visibility
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Multiple Star System
Separation
1.3″
Companion Mag
8.1
Companion Sp
G0V
Position Angle
17°
Star Colors
A: Yellow-white
B: Yellow
Discoverer
STF 554
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 1.3″ · PA: 17° · 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
5.7 F0V, 7.98 G2V, 189.5y, a = 1.01" (alternates 180.0y, a = 1.00"; 170y, a = 1.029"). Combined mass 2.82 solar. | Speckle interferometric sep. 1.300" (1980.94).
ADS 3264A, 30.5d.
In Hyades cluster; Mel 25 #80.
0.022".
Survey Image
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