Omega Aqr
HIP 116971; Omega2 Aqr; 105 Aqr
HIP 116971; Omega2 Aqr; 105 Aqr
DoubleStar
Aqr
Visible
Level 4
Large telescope (10"+) - Requires steady seeing
Physical Properties
Magnitude
4.49
Spectral Type
B9.5V
Star Color
Blue-white
(B-V -0.04)
Distance
79.5 ly
Position & Identifiers
RA
23h 42m 43.3s
Dec
-14° 32' 42.0"
Constellation
Aqr
HR
8988
HIP
116971
Bayer
Omega2
Flamsteed
105 Aqr
Double Cat
16944
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Visibility
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Multiple Star System
Separation
5.3″
Companion Mag
9.9
Position Angle
82°
Star Colors
A: Blue-white
Discoverer
BU 279
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 5.3″ · PA: 82° · 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
Component B, CPM, A5Vep; however, the companion is optical.
Survey Image
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