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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:15 
Transit: 13:06 
Sunset: 20:56
sunny   (Daytime)   What's Visible Now?
All Constellations » Ophiuchus » 

ο Ophiuchi (omicron Ophiuchi)

Below the horizon.  Rise: 18:22 | Tran: 22:03 | Set: 1:47
Alt: -15.46°   Az: 109.78°   Direction: East-South-East

ο Ophiuchi is a double sub-giant star of spectral class F6 in the constellation of Ophiuchus.

ο Ophiuchi visual magnitude is 6.8. Because of its faintness, ο Ophiuchi is not visible to the naked eye.

Image of ο Ophiuchi (omicron Ophiuchi) star
DSS2 image of ο Ophiuchi. The red arrow shows the motion of ο Ophiuchi during the next 10000 years (-12.17 arcmin in Right Ascension and -1.50 arcmin in declination);

Celestial Coordinates

Apparent

17h 19m 30s
-24° 18’ 31”
18h 22m 28s
11h 41m 59s

J2000

17h 18m 00s
-24° 17’ 03”

Galactic Coordinates

0.55°
7.71°

Finder Chart

Finder chart ο Ophiuchi (omicron Ophiuchi) star
Simplified finder chart for ο Ophiuchi (omicron Ophiuchi).

Magnitude, Color, Spectral Class

6.8
Sub-giant

0.96
F6IV
6344K

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

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

Star System Properties

ο Ophiuchi is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the ο Ophiuchi double sysyem:

6.8
8.3
1.5
10.2 arcsec

Distance, Radial Speed, Proper Motion

ο Ophiuchi is distant 480.83 light years from the Sun and it is moving towards the Sun at the speed of 28 kilometers per second.

147.49
480.83
-28 km/s
-0.073 arcsec/y
-0.009"/y

Alternative Designations

ο Ophiuchi
(omicron Ophiuchi)
39 Ophiuchi
SAO185237
SAO185237

Visibility from Your Location

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

Azimuth: 114.3°
Max altitude: 14.2°
Azimuth: 245.7°