72 Ophiuchi is a multiple sub-giant star in the constellation of Ophiuchus.
72 Ophiuchi visual magnitude is 3.73. Because of its moderate brightness, 72 Ophiuchi should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.
The table below summarizes the key facts about 72 Ophiuchi:
72 Ophiuchi is below the horizon from Greenwich, United Kingdom .
Celestial coordinates and finder chart of 72 Ophiuchi
72 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 72 Ophiuchi are provided in the following table:
The simplified sky map below shows the position of 72 Ophiuchi in the sky:
Visibility of 72 Ophiuchi from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's 72 Ophiuchi rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):
Digitized Sky Survey image of 72 Ophiuchi
The image below is a photograph of 72 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 72 Ophiuchi is -0.06 arcsec per year in Right Ascension and 0.08 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of 72 Ophiuchi from the Sun and relative movement
72 Ophiuchi is distant 82.74 light years from the Sun and it is moving towards the Sun at the speed of 24 kilometers per second.
Spectral properties of 72 Ophiuchi
72 Ophiuchi belongs to spectral class A4 and has a luminosity class of IV corresponding to a sub-giant star.
The red dot in the diagram below shows where 72 Ophiuchi is situated in the Hertzsprung–Russell diagram.
72 Ophiuchi star system properties
72 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 72 Ophiuchi double sysyem: