40 Cassiopeiae is a variable and double giant star in the constellation of Cassiopeia.
40 Cassiopeiae visual magnitude is 5.28. Because of its reltive faintness, 40 Cassiopeiae 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 Cassiopeiae:
Celestial coordinates and finder chart of 40 Cassiopeiae
40 Cassiopeiae is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 40 Cassiopeiae are provided in the following table:
The simplified sky map below shows the position of 40 Cassiopeiae in the sky:
Visibility of 40 Cassiopeiae from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
40 Cassiopeiae is circumpolar and transits at 08:52 UTC (altitude: 68.4°)
Digitized Sky Survey image of 40 Cassiopeiae
The image below is a photograph of 40 Cassiopeiae 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 Cassiopeiae is -0.013 arcsec per year in Right Ascension and -0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of 40 Cassiopeiae from the Sun and relative movement
40 Cassiopeiae is distant 446.58 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.
Spectral properties of 40 Cassiopeiae
40 Cassiopeiae belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where 40 Cassiopeiae is situated in the Hertzsprung–Russell diagram.
40 Cassiopeiae star system properties
40 Cassiopeiae 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 40 Cassiopeiae double sysyem: