AB Cet
Observable Variable Star
Range: 5.7 - 5.9, Period: 3.0d, Type: Alpha CV
HIP 11348
DoubleStar
Cet
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
5.83
Variable Type
Alpha2 CVn (Magnetic Rotating)
Spectral Type
A6VpSrCr
Star Color
Yellow-white
(B-V 0.15)
Distance
217.4 ly
Position & Identifiers
RA
02h 26m 00.3s
Dec
-15° 20' 28.0"
Constellation
Cet
HR
710
HIP
11348
Variable ID
AB Cet
Double Cat
1849
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Visibility
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Comparison Stars for AB Cet (5.7–5.9)
Nearby stable stars for estimating brightness (AAVSO)
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Multiple Star System
Components
3
Component IDs
AB
Separation
12.2″
Companion Mag
9.1
Position Angle
297°
Star Colors
A: Yellow-white
B: Yellow
Discoverer
H 3 80
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 12.2″ · PA: 297° · 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
Alpha CV 5.71 - 5.88V, 2.997814d. Irregular magnetic var., 15.9d.
AB CPM.
ADS 1849A; 2.997824d, K 17.88k/s, V0 +1.95k/s, asini 0.74.
Sirius group; UMa stream.
Uranium 3860 in spectrum.
Survey Image
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