HIP 28744
HIP 28744
DoubleStar
Mon
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
5.21
Variable Type
Ellipsoidal Variable
Spectral Type
B2Ven
Star Color
Blue-white
(B-V -0.06)
Position & Identifiers
RA
06h 04m 13.5s
Dec
-06° 42' 33.0"
Constellation
Mon
HR
2142
HIP
28744
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Visibility
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Multiple Star System
Separation
0.6″
Companion Mag
9.4
Position Angle
271°
Star Colors
A: Blue-white
Discoverer
HDS 826
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.6″ · PA: 271° · 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
5.20 - 5.23V, 80.85d, periodic shell phenomena.
Shell star.
Rapidly rotating and variable hydrogen lines suggest recent ejection of equatorial shell.
Survey Image
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