HR8731 is a variable giant star in the constellation of Lacerta.
HR8731 visual magnitude is 5.43. Because of its reltive faintness, HR8731 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 HR8731:
Celestial coordinates and finder chart of HR8731
HR8731 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR8731 are provided in the following table:
The simplified sky map below shows the position of HR8731 in the sky:
Visibility of HR8731 from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
HR8731 is circumpolar and transits at 06:11 UTC (altitude: 87.2°)
Digitized Sky Survey image of HR8731
The image below is a photograph of HR8731 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 HR8731 is 0.012 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR8731 from the Sun and relative movement
HR8731 is distant 1,097.64 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.
Spectral properties of HR8731
HR8731 belongs to spectral class B4 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where HR8731 is situated in the Hertzsprung–Russell diagram.