V819 Her
HIP 84949
Star
Her
Visible
Level 2
Small telescope (4")
Physical Properties
Magnitude
5.51
Spectral Type
F9Vn:
Star Color
Orange
(B-V 0.68)
Distance
155.3 ly
Position & Identifiers
RA
17h 21m 43.6s
Dec
+39° 58' 28.0"
Constellation
Her
HR
6469
HIP
84949
Variable ID
V819 Her
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Visibility
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Multiple Star System
Separation
0.0″
Companion Mag
6.4
Position Angle
45°
Star Colors
A: Orange
Discoverer
MCA 47
Eyepiece View
15x
Dawes: 1.9″
TFOV: 3.3°
Realistic = true angular size
Sep: 0.0″ · PA: 45° · 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
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Stellar Notes
E, amp. 0.085V, 2.2299d. Also long period var. outside eclipse, amp. 0.04V, 83.2d; probably the rotation period of | the G5IV component.
Recognized as triple system by speckle interferometry: single star G5IV and close pair of which the brighter component | is F7V eclipsing, sep. 0.045".
5.53y.
Also classified F7V?+G5IV. Weak H alpha emission.
Survey Image
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