Rasalgethi (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 , Rasalgethi is visible all night. It will become visible at around 21:01 (PDT), 30° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 01:15, 70° above your southern horizon. It will be lost to dawn twilight at around 04:36, 40° above your western horizon.

Name Rasalgethi
Object type Star
Other names
Rasalgethi
Alp Her
α¹-Her
Alpha1 Herculis
64-Her
64 Herculis
HD 156014
HIP 84345[2]
Position
Right ascension:17h14m38s [1]
Declination:+14°23'24" [1]
Constellation:Hercules
Magnitude:2.78 (V) [1]
4.71 (BT) [1]
3.33 (VT) [1]
Distance:110.3 parsec
359.4 lightyrs [2]
B-V Color (mag):1.16
Proper motion (speed):36.8 mas/yr[2]
Proper motion (pos ang):348.5°
Derived quantities
Absolute mag (V):-2.43

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