Delta Cen
Observable Double Star
Good (47/100)
Sep: 269.1", Companion: mag 4.4
HIP 59196; Delta Cen
DoubleStar
Cen
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
2.60
Variable Type
Gamma Cassiopeiae (Eruptive Be Star)
Spectral Type
B2Vne
Star Color
Blue-white
(B-V -0.12)
Distance
413.5 ly
Position & Identifiers
RA
12h 08m 21.5s
Dec
-50° 43' 21.0"
Constellation
Cen
HR
4621
HIP
59196
Bayer
Delta
Variable ID
Del Cen
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
269.1″
Companion Mag
4.4
Position Angle
325°
Star Colors
A: Blue-white
B: Blue-white
Discoverer
JC 2
Eyepiece View
32x
Dawes: 1.9″
TFOV: 1.6°
Realistic = true angular size
Sep: 269.1″ · PA: 325° · 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
Gamma Cas 2.51 - 2.65V. Expanding circumstellar shell.
CPM with HR 4618, 4619.
Certain member of the Sco-Cen cluster; lower Cen group of Sco-Cen assoc.; member of Pleiades group.
Shell star. Equivalent width of H alpha varies.
Survey Image
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