Gamma Equ
HIP 104521; Gamma Equ; 5 Equ
DoubleStar
Equ
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
4.69
Variable Type
Alpha2 CVn (Magnetic Rotating)
Spectral Type
F0IIIp
Star Color
Yellow-white
(B-V 0.26)
Distance
116.5 ly
Position & Identifiers
RA
21h 10m 20.5s
Dec
+10° 07' 54.0"
Constellation
Equ
HR
8097
HIP
104521
Bayer
Gamma
Flamsteed
5 Equ
Variable ID
Gam Equ
Double Cat
14702
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Visibility
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Multiple Star System
Components
4
Component IDs
AD
Separation
0.4″
Companion Mag
8.7
Position Angle
232°
Star Colors
A: Yellow-white
B: White
Discoverer
KNT 5
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.4″ · PA: 232° · 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
ADS 14702A, Alpha CV 4.58 - 4.77V, 314d, 0 00868d. Magnetic field var. 1786d and 72y. Spectrum var. 72y.
AB binary, B, 11.6v at 2". C, 12.6v at 48" optical.
Wolf 630 group.
Extreme oxygen deficiency. Eu, Cr, Sr strong, DyIII identified. The spectrum has been variously classified as cF1, | F0III, and F0pV. | Also classified A9Vp(SrCrEu st.,Ca wk.).
0.011".
1786d, possibly also short period? Rotation 17.492d?
3 solar radii.
Survey Image
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