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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:05 
Transit: 12:56 
Sunset: 20:48
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All Constellations » Ophiuchus » 

12 Ophiuchi

Above the horizon.  Rise: 20:03 | Tran: 1:53 | Set: 7:39
Alt: 14.55°   Az: 246.74°   Direction: West-South-West

12 Ophiuchi is a variable main-sequence star of spectral class K2 in the constellation of Ophiuchus.

12 Ophiuchi visual magnitude is 5.75. Because of its faintness, 12 Ophiuchi is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of 12 Ophiuchi star
DSS2 image of 12 Ophiuchi. The red arrow shows the motion of 12 Ophiuchi during the next 1000 years (7.63 arcmin in Right Ascension and -5.17 arcmin in declination);

Celestial Coordinates

Apparent

16h 37m 40s
-02° 22’ 29”
04h 11m 30s
20h 49m 11s

J2000

16h 36m 21s
-02° 19’ 28”

Galactic Coordinates

13.73°
28.42°

Finder Chart

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Finder chart for 12 Ophiuchi.

Magnitude, Color, Spectral Class

5.75
Main-sequence

5.80
K2V
5221K

The red dot in the diagram below shows where 12 Ophiuchi is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 12 Ophiuchi. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

12 Ophiuchi is distant 31.88 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

9.78
31.88
-15 km/s
0.458 arcsec/y
-0.31"/y

Alternative Designations

12 Ophiuchi
SAO141269
SAO141269

Visibility from Your Location

Today's 12 Ophiuchi rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 92.4°
Max altitude: 36.1°
Azimuth: 267.6°