Delta Tuc
Observable Double Star
Good (49/100)
Sep: 6.8", Companion: mag 8.7
HIP 110838; Delta Tuc
DoubleStar
Tuc
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
4.48
Spectral Type
B9.5V
Star Color
Blue-white
(B-V -0.03)
Position & Identifiers
RA
22h 27m 20.0s
Dec
-64° 57' 59.0"
Constellation
Tuc
HR
8540
HIP
110838
Bayer
Delta
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Visibility
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Multiple Star System
Separation
6.8″
Companion Mag
8.7
Position Angle
279°
Star Colors
A: Blue-white
B: White
Discoverer
HJ 5334
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 6.8″ · PA: 279° · 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
CPM companion F5III, optical.
Survey Image
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