Nu Her
HIP 87998; Nu Her; 94 Her
DoubleStar
Her
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
4.41
Variable Type
Semi-Regular Variable
Spectral Type
F2II
Star Color
Yellow-white
(B-V 0.39)
Distance
465.9 ly
Position & Identifiers
RA
17h 58m 30.2s
Dec
+30° 11' 22.0"
Constellation
Her
HR
6707
HIP
87998
Bayer
Nu
Flamsteed
94 Her
Variable ID
Nu Her
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Visibility
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Multiple Star System
Separation
0.5″
Companion Mag
7.5
Position Angle
354°
Star Colors
A: Yellow-white
B: Orange
Discoverer
HDS2534
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.5″ · PA: 354° · 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
SRd? 4.38 - 4.48V, 29:d. However, more recent photoelectric observations cast doubt on variability.
Manganese star. IUE observations suggest B9.5V companion.
Survey Image
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