HR7802 is a variable and multiple hypergiant star in the constellation of Cygnus.
HR7802 visual magnitude is 6.2. Because of its reltive faintness, HR7802 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 HR7802:
Celestial coordinates and finder chart of HR7802
HR7802 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 HR7802 are provided in the following table:
The simplified sky map below shows the position of HR7802 in the sky:
Visibility of HR7802 from your location
Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
HR7802 is circumpolar and transits at 07:57 UTC (altitude: 81.5°)
Digitized Sky Survey image of HR7802
The image below is a photograph of HR7802 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 HR7802 is 0.053 arcsec per year in Right Ascension and 0.036 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR7802 from the Sun and relative movement
HR7802 is distant 330.63 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.
Spectral properties of HR7802
HR7802 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.
The red dot in the diagram below shows where HR7802 is situated in the Hertzsprung–Russell diagram.
HR7802 star system properties
HR7802 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR7802 double sysyem: