ζ-Her (Star)

R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.

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From South El Monte , ζ-Her is difficult to observe as it will appear no higher than 19° above the horizon. It is visible in the dawn sky, rising at 03:48 (PST) – 2 hours and 53 minutes before the Sun – and reaching an altitude of 19° above the north-eastern horizon before fading from view as dawn breaks at around 05:44.

Name ζ-Her
Object type Star
Other names
ζ-Her
Zeta Herculis
40-Her
40 Herculis
HR 6212[1]
HD 150680
NSV 7915
HIP 81693[5]
TYC 2582-3158-1[4]
Position
Right ascension:16h41m17s [3]
Declination:+31°36'06" [3]
Constellation:Hercules
Magnitude:
Variable
2.85 (V) [3]
3.65 (BT) [2]
2.92 (VT) [2]
Distance:10.7 parsec
34.9 lightyrs [5]
B-V Color (mag):0.65
Proper motion (speed):574.6 mas/yr[5]
Proper motion (pos ang):306.6°
Derived quantities
Absolute mag (V):2.70

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