20 Cygni
20 Cygni is a variable giant star in the constellation of Cygnus.
20 Cygni visual magnitude is 5.03. Because of its reltive faintness, 20 Cygni 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 20 Cygni:
Celestial coordinates and finder chart of 20 Cygni
20 Cygni 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 20 Cygni are provided in the following table:
The simplified sky map below shows the position of 20 Cygni in the sky:
Visibility of 20 Cygni from your location
Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London
20 Cygni is circumpolar and transits at 01:10 UTC (altitude: 88.5°)
Digitized Sky Survey image of 20 Cygni
The image below is a photograph of 20 Cygni 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 20 Cygni is -0.008 arcsec per year in Right Ascension and -0.068 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of 20 Cygni from the Sun and relative movement
20 Cygni is distant 192.22 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.
Spectral properties of 20 Cygni
20 Cygni belongs to spectral class K3 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where 20 Cygni is situated in the Hertzsprung–Russell diagram.
