Merope
23 Tau
HIP 17608; 23 Tau
DoubleStar
Tau
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
4.18
Spectral Type
B6IVe
Star Color
Blue-white
(B-V -0.06)
Position & Identifiers
RA
03h 46m 19.6s
Dec
+23° 56' 54.0"
Constellation
Tau
HR
1156
HIP
17608
Flamsteed
23 Tau
Variable ID
V971 Tau
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Visibility
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Multiple Star System
Separation
110.6″
Companion Mag
14.4
Position Angle
180°
Star Colors
A: Blue-white
B: Yellow
Discoverer
HL 15
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 110.6″ · PA: 180° · 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
Variable hydrogen emission.
Suspected double probably single star.
Pleiades cluster; Mel 22 #980; in reflection nebula; Pleiades nebula; member assoc. Tau R1 at 110 pc.
Merope.
Survey Image
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