HR7721 is a main-sequence star in the constellation of Cygnus.
HR7721 visual magnitude is 6.92. Because of its reltive faintness, HR7721 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 HR7721:
Celestial coordinates and finder chart of HR7721
HR7721 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 HR7721 are provided in the following table:
The simplified sky map below shows the position of HR7721 in the sky:
Visibility of HR7721 from your location
HR7721 is circumpolar and transits at 11:56 UTC (altitude: 86.3°)
Digitized Sky Survey image of HR7721
The image below is a photograph of HR7721 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 HR7721 is 0.016 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR7721 from the Sun and relative movement
HR7721 is distant 831.63 light years from the Sun and it is moving towards the Sun at the speed of 19 kilometers per second.
Spectral properties of HR7721
HR7721 belongs to spectral class B7 and has a luminosity class of V corresponding to a main-sequence star.
The red dot in the diagram below shows where HR7721 is situated in the Hertzsprung–Russell diagram.