HR7638 is a multiple main-sequence star in the constellation of Cygnus.
HR7638 visual magnitude is 6.43. Because of its reltive faintness, HR7638 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 HR7638:
HR7638 is above the horizon from Greenwich, United Kingdom .
Celestial coordinates and finder chart of HR7638
HR7638 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 HR7638 are provided in the following table:
The simplified sky map below shows the position of HR7638 in the sky:
Visibility of HR7638 from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
HR7638 is circumpolar and transits at 02:49 UTC (altitude: 80.8°)
Digitized Sky Survey image of HR7638
The image below is a photograph of HR7638 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 HR7638 is 0.001 arcsec per year in Right Ascension and -0.003 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.
Distance of HR7638 from the Sun and relative movement
HR7638 is distant 1,268.48 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.
Spectral properties of HR7638
HR7638 belongs to spectral class A3 and has a luminosity class of V corresponding to a main-sequence star.
The red dot in the diagram below shows where HR7638 is situated in the Hertzsprung–Russell diagram.
HR7638 star system properties
HR7638 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 HR7638 double sysyem: