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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 » 

45 Ophiuchi

Below the horizon.  Rise: 23:46 | Tran: 2:44 | Set: 5:39
Alt: -20.33°   Az: 112.82°   Direction: East-South-East

45 Ophiuchi is a sub-giant star of spectral class F5 in the constellation of Ophiuchus.

45 Ophiuchi visual magnitude is 4.29. Because of its moderate brightness, 45 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 45 Ophiuchi star
DSS2 image of 45 Ophiuchi. The red arrow shows the motion of 45 Ophiuchi during the next 1000 years (0.33 arcmin in Right Ascension and -2.32 arcmin in declination);

Celestial Coordinates

Apparent

17h 28m 58s
-29° 53’ 11”
18h 18m 02s
11h 47m 01s

J2000

17h 27m 21s
-29° 52’ 00”

Galactic Coordinates

357.08°
2.85°

Finder Chart

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Finder chart for 45 Ophiuchi.

Magnitude, Color, Spectral Class

4.29
Sub-giant

1.62
F5IV
6880K

The red dot in the diagram below shows where 45 Ophiuchi is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 45 Ophiuchi. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

45 Ophiuchi is distant 111.41 light years from the Sun and it is moving far from the Sun at the speed of 37 kilometers per second.

34.18
111.41
37 km/s
0.02 arcsec/y
-0.139"/y

Alternative Designations

45 Ophiuchi
SAO185412
SAO185412

Visibility from Your Location

Today's 45 Ophiuchi rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 119.9°
Max altitude: 8.6°
Azimuth: 240.1°