HR7642 is a double sub-giant star in the constellation of Cygnus.
HR7642 visual magnitude is 6.32. Because of its reltive faintness, HR7642 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 HR7642:
Celestial coordinates and finder chart of HR7642
HR7642 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 HR7642 are provided in the following table:
The simplified sky map below shows the position of HR7642 in the sky:
Visibility of HR7642 from your location
Digitized Sky Survey image of HR7642
The image below is a photograph of HR7642 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 HR7642 is 0.009 arcsec per year in Right Ascension and -0.004 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.
Distance of HR7642 from the Sun and relative movement
HR7642 is distant 1,762.16 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.
Spectral properties of HR7642
HR7642 belongs to spectral class B5 and has a luminosity class of IV corresponding to a sub-giant star.
The red dot in the diagram below shows where HR7642 is situated in the Hertzsprung–Russell diagram.
HR7642 star system properties
HR7642 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR7642 double sysyem: