α Sextantis (alpha Sextantis)
α Sextantis is a hypergiant star in the constellation of Sextans.
α Sextantis visual magnitude is 4.49. Because of its moderate brightness, α Sextantis 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 α Sextantis:
Celestial coordinates and finder chart of α Sextantis
α 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 α Sextantis are provided in the following table:
The simplified sky map below shows the position of α Sextantis in the sky:
Visibility of α Sextantis from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's α Sextantis (alpha Sextantis) 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 α Sextantis
The image below is a photograph of α 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 α Sextantis is -0.016 arcsec per year in Right Ascension and -0.013 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of α Sextantis from the Sun and relative movement
α Sextantis is distant 287.22 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.
Spectral properties of α Sextantis
α Sextantis belongs to spectral class A0 and has a luminosity class of III corresponding to a hypergiant star.
The red dot in the diagram below shows where α Sextantis is situated in the Hertzsprung–Russell diagram.