31 Aquilae is a variable and multiple sub-giant star in the constellation of Aquila.
31 Aquilae visual magnitude is 5.16. Because of its reltive faintness, 31 Aquilae 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 31 Aquilae:
Celestial coordinates and finder chart of 31 Aquilae
31 Aquilae 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 31 Aquilae are provided in the following table:
The simplified sky map below shows the position of 31 Aquilae in the sky:
Visibility of 31 Aquilae from your location
Digitized Sky Survey image of 31 Aquilae
The image below is a photograph of 31 Aquilae 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 31 Aquilae is 0.722 arcsec per year in Right Ascension and 0.643 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Distance of 31 Aquilae from the Sun and relative movement
31 Aquilae is distant 49.39 light years from the Sun and it is moving towards the Sun at the speed of 100 kilometers per second.
Spectral properties of 31 Aquilae
31 Aquilae belongs to spectral class G8 and has a luminosity class of IV corresponding to a sub-giant star.
The red dot in the diagram below shows where 31 Aquilae is situated in the Hertzsprung–Russell diagram.
31 Aquilae star system properties
31 Aquilae is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 31 Aquilae double sysyem: