Mu Ari
HIP 12640; Mu Ari; 34 Ari
DoubleStar
Ari
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.69
Spectral Type
A0Vnp:
Star Color
Blue-white
(B-V -0.02)
Position & Identifiers
RA
02h 42m 22.0s
Dec
+20° 00' 42.0"
Constellation
Ari
HR
793
HIP
12640
Bayer
Mu
Flamsteed
34 Ari
Double Cat
2062
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Visibility
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Multiple Star System
Components
4
Component IDs
O
Separation
18.6″
Companion Mag
12.2
Position Angle
265°
Star Colors
A: Blue-white
Discoverer
BU 522
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 18.6″ · PA: 265° · 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
AB 6.2, 12.2v, 19" about 6y. Occultations indicate A is triple system, 7.0v A1, at 0.06", and 8.0v at 0.2". Aa | resolved by speckle interferometry, sep. 0.045" 1981.68, 0.040" 1981.69.
Lambda Boo star, Mg 4481 wk:
Survey Image
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