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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:27 
Transit: 12:14 
Sunset: 17:01
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All Constellations » Ophiuchus » 

ω Ophiuchi (omega Ophiuchi)

Below the horizon.  Rise: 3:19 | Tran: 7:19 | Set: 11:18
Alt: -60.01°   Az: 3.33°   Direction: North

ω Ophiuchi is a variable star of spectral class A7 in the constellation of Ophiuchus.

ω Ophiuchi visual magnitude is 4.45. Because of its moderate brightness, ω Ophiuchi is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of ω Ophiuchi (omega Ophiuchi) star
DSS2 image of ω Ophiuchi. The red arrow shows the motion of ω Ophiuchi during the next 10000 years (4.67 arcmin in Right Ascension and 6.50 arcmin in declination);

Celestial Coordinates

Apparent

16h 33m 37s
-21° 31’ 05”
12h 07m 09s
04h 40m 47s

J2000

16h 32m 08s
-21° 27’ 59”

Galactic Coordinates

356.3°
17.83°

Finder Chart

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Finder chart for ω Ophiuchi (omega Ophiuchi).

Magnitude, Color, Spectral Class

4.45

0.80
A7
8748K

The red dot in the diagram below shows where ω Ophiuchi is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ω Ophiuchi. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

ω Ophiuchi is distant 174.71 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

53.59
174.71
3 km/s
0.028 arcsec/y
0.039"/y

Alternative Designations

ω Ophiuchi
(omega Ophiuchi)
SAO184450
SAO184450

Visibility from Your Location

Today's ω Ophiuchi (omega Ophiuchi) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 111.5°
Max altitude: 17.0°
Azimuth: 248.5°