Beta Tuc
HIP 2487; Beta2 Tuc
HIP 2487; Beta2 Tuc
DoubleStar
Tuc
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
4.54
Spectral Type
A2V+A7V
Star Color
Yellow-white
(B-V 0.15)
Distance
108.7 ly
Position & Identifiers
RA
00h 31m 33.6s
Dec
-62° 57' 57.0"
Constellation
Tuc
HR
127
HIP
2487
Bayer
Beta2
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Visibility
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Multiple Star System
Components
6
Component IDs
AC
Separation
27.0″
Companion Mag
13.5
Position Angle
168°
Star Colors
A: Yellow-white
B: Blue-white
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 27.0″ · PA: 168° · 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
CD 4.9 A2V, 5.6 A7V, 44.43y, a = 0.385". Combined mag., colors. D-C = 1.17V.
0.020".
Survey Image
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