Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:34  ☀️ Transit: 13:02  🌅 Sunset: 19:31

19 Ophiuchi

19 Ophiuchi is a variable and multiple main-sequence star in the constellation of Ophiuchus.

19 Ophiuchi visual magnitude is 6.1. Because of its reltive faintness, 19 Ophiuchi should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about 19 Ophiuchi:

19 Ophiuchi is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of 19 Ophiuchi

19 Ophiuchi is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 19 Ophiuchi are provided in the following table:

16h 47m 09s
+02° 03’ 51”

The simplified sky map below shows the position of 19 Ophiuchi in the sky:

Finder chart 19 Ophiuchi star
Simplified finder chart for 19 Ophiuchi.

Visibility of 19 Ophiuchi from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's 19 Ophiuchi rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 87.9°
Max altitude: 40.6°
Azimuth: 272.1°
19 Ophiuchi is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 19 Ophiuchi

The image below is a photograph of 19 Ophiuchi from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of 19 Ophiuchi is -0.01 arcsec per year in Right Ascension and -0.014 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 19 Ophiuchi star
DSS2 image of 19 Ophiuchi. The red arrow shows the motion of 19 Ophiuchi during the next 10000 years (-1.67 arcmin in Right Ascension and -2.33 arcmin in declination);

Distance of 19 Ophiuchi from the Sun and relative movement

19 Ophiuchi is distant 492.45 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.

151.06 pc
492.45 ly
-6 km/s
-0.01 arcsec/year
-0.014 arcsec/year

Spectral properties of 19 Ophiuchi

19 Ophiuchi belongs to spectral class A3 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 19 Ophiuchi is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 19 Ophiuchi. Attribution: Richard Powell / CC BY-SA

19 Ophiuchi star system properties

19 Ophiuchi is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 19 Ophiuchi double sysyem:

23.4 arcsec

Alternative designations of 19 Ophiuchi

19 Ophiuchi