Sabik - η Ophiuchi (eta Ophiuchi)
Sabik, also designated as η Ophiuchi (eta Ophiuchi), is a multiple main-sequence star in the constellation of Ophiuchus.
Sabik visual magnitude is 2.43, making it the 85th brightest star in the sky. Thanks to its high brightness, Sabik is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas.
The table below summarizes the key facts about Sabik:
Celestial coordinates and finder chart of Sabik
Sabik 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 Sabik are provided in the following table:
The simplified sky map below shows the position of Sabik in the sky:
Visibility of Sabik from your location
Digitized Sky Survey image of Sabik
The image below is a photograph of Sabik 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 Sabik is 0.039 arcsec per year in Right Ascension and 0.098 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Distance of Sabik from the Sun and relative movement
Sabik is distant 84.09 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.
Spectral properties of Sabik
Sabik belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.
The red dot in the diagram below shows where Sabik is situated in the Hertzsprung–Russell diagram.
Sabik star system properties
Sabik 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 Sabik double sysyem: