V638 Mon
HIP 29401
DoubleStar
Mon
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
6.18
Variable Type
Alpha2 CVn (Magnetic Rotating)
Spectral Type
B9pHgMn
Star Color
Blue-white
(B-V -0.08)
Position & Identifiers
RA
06h 11m 43.7s
Dec
-04° 39' 56.0"
Constellation
Mon
HR
2202
HIP
29401
Variable ID
V638 Mon
Double Cat
4799
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Visibility
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Multiple Star System
Separation
0.6″
Companion Mag
8.2
Position Angle
206°
Star Colors
A: Blue-white
B: Yellow-white
Discoverer
AC 3
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.6″ · PA: 206° · 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
Alpha CV 6.16 - 6.18V, amp. 0.02y, 0.724d.
Survey Image
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