40 Sextantis is a double sub-giant star in the constellation of Sextans.
40 Sextantis visual magnitude is 6.61. Because of its reltive faintness, 40 Sextantis 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 40 Sextantis:
Celestial coordinates and finder chart of 40 Sextantis
40 Sextantis 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 40 Sextantis are provided in the following table:
The simplified sky map below shows the position of 40 Sextantis in the sky:
Visibility of 40 Sextantis from your location
Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's 40 Sextantis rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):
Digitized Sky Survey image of 40 Sextantis
The image below is a photograph of 40 Sextantis 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 40 Sextantis is -0.049 arcsec per year in Right Ascension and -0.012 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of 40 Sextantis from the Sun and relative movement
40 Sextantis is distant 312.56 light years from the Sun and it is moving far from the Sun at the speed of 14 kilometers per second.
Spectral properties of 40 Sextantis
40 Sextantis belongs to spectral class A2 and has a luminosity class of IV corresponding to a sub-giant star.
The red dot in the diagram below shows where 40 Sextantis is situated in the Hertzsprung–Russell diagram.
40 Sextantis star system properties
40 Sextantis is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the 40 Sextantis double sysyem: