Celaeno
HIP 17489; 16 Tau
HIP 17489; 16 Tau
DoubleStar
Tau
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.46
Spectral Type
B7IV
Star Color
Blue-white
(B-V -0.04)
Distance
271.8 ly
Position & Identifiers
RA
03h 44m 48.2s
Dec
+24° 17' 22.0"
Constellation
Tau
HR
1140
HIP
17489
Flamsteed
16 Tau
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Visibility
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Multiple Star System
Separation
88.4″
Companion Mag
13.2
Position Angle
264°
Star Colors
A: Blue-white
Discoverer
HL 6
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 88.4″ · PA: 264° · 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
Suspected occultation binary, sep. 0.0062". Unresolved by speckle interferometry 1981.69.
Pleiades cluster; Mel 22 #447.
Celaeno; Celieno; Celeno; "Lost Pleiad".
Survey Image
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