Beta PsA
HIP 111188; Beta PsA; 17 PsA
DoubleStar
PsA
Visible
Level 4
Large telescope (10"+) - Requires steady seeing
Physical Properties
Magnitude
4.29
Spectral Type
A0V
Star Color
White
(B-V 0.01)
Distance
155.3 ly
Position & Identifiers
RA
22h 31m 30.3s
Dec
-32° 20' 46.0"
Constellation
PsA
HR
8576
HIP
111188
Bayer
Beta
Flamsteed
17 PsA
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Visibility
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Multiple Star System
Components
4
Component IDs
AD
Separation
9.5″
Companion Mag
15.1
Position Angle
316°
Star Colors
A: White
Discoverer
EHR 18
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 9.5″ · PA: 316° · 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 D G2? Photometric data (Oblak 1978, A&AS, 34, 453) give B A2V, 6.22V,; C F2V, 7.71V, +0.38(B-V); | D F9V, 7.83V, +0.51(B-V), where MK types are estimated from uvby,beta photometry. ABD physical, C optical.
Survey Image
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