Home
Search Objects
Major Solar System Objects
Comets
Asteroids
Spacecrafts
Star Maps
Orbits
public  Brieden, Germany Brieden, Germany  ⓘ
TimezoneEurope/Berlin
Sunrise: 5:30 
Transit: 13:35 
Sunset: 21:40
wb_twilight   (Astronomical Twilight)  
Planets Visible Tonight
Planets Visible Tonight
 • 
What's Visible Now • The Sky Tonight
Search  close
All Constellations » Ophiuchus » 

φ Ophiuchi (phi Ophiuchi)

Above the horizon.  Rise: 18:28 | Tran: 23:03 | Set: 3:41
Alt: 12.11°   Az: 224.32°   Direction: South-West

φ Ophiuchi is a multiple giant star of spectral class G8 in the constellation of Ophiuchus.

φ Ophiuchi visual magnitude is 4.28. Because of its moderate brightness, φ 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 φ Ophiuchi (phi Ophiuchi) star
DSS2 image of φ Ophiuchi. The red arrow shows the motion of φ Ophiuchi during the next 10000 years (-8.50 arcmin in Right Ascension and -5.83 arcmin in declination);

Celestial Coordinates

Apparent

16h 32m 36s
-16° 39’ 57”
03h 01m 55s
19h 34m 31s

J2000

16h 31m 08s
-16° 36’ 46”

Galactic Coordinates

0.13°
21.08°

Finder Chart

loader
  Loading map...
Finder chart for φ Ophiuchi (phi Ophiuchi).

Magnitude, Color, Spectral Class

4.28
Giant

0.24
G8III
4943K

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

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

Star System Properties

φ Ophiuchi is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the φ Ophiuchi double sysyem:

4.28
11.08
6.8
120 arcsec

Distance, Radial Speed, Proper Motion

φ Ophiuchi is distant 209.92 light years from the Sun and it is moving towards the Sun at the speed of 34 kilometers per second.

64.39
209.92
-34 km/s
-0.051 arcsec/y
-0.035"/y

Alternative Designations

φ Ophiuchi
(phi Ophiuchi)
SAO159963
SAO159963

Visibility from Your Location

Today's φ Ophiuchi (phi Ophiuchi) rise, transit and set times from Brieden, Germany are the following (all times relative to the local timezone Europe/Berlin):

Azimuth: 106.7°
Max altitude: 23.2°
Azimuth: 253.3°