Mu Ori
HIP 28614; Mu Ori; 61 Ori
DoubleStar
Ori
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
4.12
Variable Type
Alpha2 CVn (Magnetic Rotating)
Spectral Type
A2V
Star Color
Yellow-white
(B-V 0.16)
Distance
116.5 ly
Position & Identifiers
RA
06h 02m 23.0s
Dec
+09° 38' 51.0"
Constellation
Ori
HR
2124
HIP
28614
Bayer
Mu
Flamsteed
61 Ori
Double Cat
4617
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
0.1″
Companion Mag
6.3
Position Angle
32°
Star Colors
A: Yellow-white
B: Yellow
Discoverer
A 2715
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.1″ · PA: 32° · N up, E left
Unresolved · 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
ADS 4617A, Alpha CV 4.10 - 4.18V.
AB 4.4 A2V, 6.0 F3V, 17.5d, a = 0.276"; ABxP, 18.25y, a = 0.089". Magnitude and colors for combined light. A is alpha | CVn var., SB1, 4.45d; B is SB2, 4.78d. Component C, 14v at 18" probably optical.
ADS 4617A, 4.4476d, K 28.4k/s, V0 var., asini 1.74. Alternate orbit 4.4478d, K 29.2k/s, V0 +40.9k/s, | asini 1.79. Speckle interferometric sep. 0.153" 1980.94; unresolved 1983.94. ADS 4617AB, 18y, K 14.9k/s, | V0 +43.3k/s, asini 851. ADS 4617B is SB2, 4.78d.
Mel 25; the Hyades.
K/m indicate A3/A7, respectively.
0.023".
Survey Image
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