51 Cygni is a multiple main-sequence star in the constellation of Cygnus.
51 Cygni visual magnitude is 5.39. Because of its reltive faintness, 51 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 51 Cygni:
Celestial coordinates and finder chart of 51 Cygni
51 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 51 Cygni are provided in the following table:
The simplified sky map below shows the position of 51 Cygni in the sky:
Visibility of 51 Cygni from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
51 Cygni is circumpolar and transits at 04:12 UTC (altitude: 88.9°)
Digitized Sky Survey image of 51 Cygni
The image below is a photograph of 51 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 51 Cygni is 0.003 arcsec per year in Right Ascension and 0.005 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.
Distance of 51 Cygni from the Sun and relative movement
51 Cygni is distant 923.51 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.
Spectral properties of 51 Cygni
51 Cygni belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.
The red dot in the diagram below shows where 51 Cygni is situated in the Hertzsprung–Russell diagram.
51 Cygni star system properties
51 Cygni 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 51 Cygni double sysyem: