V686 CrA
Observable Variable Star
Good (51/100)
Range: 5.2 - 5.4, Period: 3.7d, Type: Alpha CV
HIP 92989
VariableStar
CrA
Visible
Level 3
Medium telescope (6-8") - Monitor brightness changes
Physical Properties
Magnitude
5.38
Variable Type
Alpha2 CVn (Magnetic Rotating)
Spectral Type
B8IVSi
Star Color
Blue-white
(B-V -0.14)
Position & Identifiers
RA
18h 56m 40.5s
Dec
-37° 20' 36.0"
Constellation
CrA
HR
7129
HIP
92989
Variable ID
V686 CrA
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Visibility
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Comparison Stars for V686 CrA (5.2–5.4)
Nearby stable stars for estimating brightness (AAVSO)
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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 5.25 - 5.41V, 3.6733d. Similar period for He-line intensities, magnetic field.
Sco-Cen cluster; member of the local association (Pleiades group); Sco-Cen assoc.
Helium-weak star of Alpha Scl subgroup. Possibly hottest magnetic star known, about 20,000K.
7.34d.
Survey Image
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