Theta Mic
HIP 105382; Theta1 Mic
Observable Variable Star
Good (53/100)
Range: 4.8 - 4.9, Period: 2.1d, Type: Alpha CV
HIP 105382; Theta1 Mic
VariableStar
Mic
Visible
Level 3
Medium telescope (6-8") - Monitor brightness changes
Physical Properties
Magnitude
4.82
Variable Type
Alpha2 CVn (Magnetic Rotating)
Spectral Type
ApCrEuSr
Star Color
White
(B-V 0.02)
Distance
271.8 ly
Position & Identifiers
RA
21h 20m 45.6s
Dec
-40° 48' 35.0"
Constellation
Mic
HR
8151
HIP
105382
Bayer
Theta1
Variable ID
The1 Mic
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Visibility
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Comparison Stars for Theta Mic (4.8–4.9)
Nearby stable stars for estimating brightness (AAVSO)
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Multiple Star System
Separation
0.2″
Companion Mag
7.4
Position Angle
1°
Star Colors
A: White
B: Yellow
Discoverer
HDS3039
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.2″ · PA: 1° · 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 4.77 - 4.87V, 2.1215d.
Survey Image
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