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public  Egbe, Nigeria Egbe, Nigeria  ⓘ
TimezoneAfrica/Lagos
Sunrise: 6:25 
Transit: 12:42 
Sunset: 18:58
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All Constellations » Ophiuchus » 

χ Ophiuchi (chi Ophiuchi)

Below the horizon.  Rise: 16:34 | Tran: 22:21 | Set: 4:12
Alt: -79.20°   Az: 162.82°   Direction: South-South-East

χ Ophiuchi is a variable sub-giant star of spectral class B2 in the constellation of Ophiuchus.

χ Ophiuchi visual magnitude is 4.42. Because of its moderate brightness, χ 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 χ Ophiuchi (chi Ophiuchi) star
DSS2 image of χ Ophiuchi. The red arrow shows the motion of χ Ophiuchi during the next 10000 years (-0.33 arcmin in Right Ascension and -3.67 arcmin in declination);

Celestial Coordinates

Apparent

16h 28m 30s
-18° 30’ 43”
12h 13m 22s
04h 41m 52s

J2000

16h 27m 01s
-18° 27’ 23”

Galactic Coordinates

357.93°
20.68°

Finder Chart

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Finder chart for χ Ophiuchi (chi Ophiuchi).

Magnitude, Color, Spectral Class

4.42
Sub-giant

-1.46
B2IV
7591K

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

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

Distance, Radial Speed, Proper Motion

χ Ophiuchi is distant 488.76 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

149.93
488.76
-3 km/s
-0.002 arcsec/y
-0.022"/y

Alternative Designations

χ Ophiuchi
(chi Ophiuchi)
SAO159918
SAO159918

Visibility from Your Location

Today's χ Ophiuchi (chi Ophiuchi) rise, transit and set times from Egbe, Nigeria are the following (all times relative to the local timezone Africa/Lagos):

Azimuth: 108.5°
Max altitude: 63.3°
Azimuth: 251.5°