HR7781 is a multiple main-sequence star in the constellation of Cygnus.
HR7781 visual magnitude is 5.76. Because of its reltive faintness, HR7781 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 HR7781:
Celestial coordinates and finder chart of HR7781
HR7781 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 HR7781 are provided in the following table:
The simplified sky map below shows the position of HR7781 in the sky:
Visibility of HR7781 from your location
HR7781 is circumpolar and transits at 01:18 UTC (altitude: 86.1°)
Digitized Sky Survey image of HR7781
The image below is a photograph of HR7781 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 HR7781 is -0.006 arcsec per year in Right Ascension and -0.023 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR7781 from the Sun and relative movement
HR7781 is distant 290.81 light years from the Sun and it is moving far from the Sun at the speed of 1 kilometers per second.
Spectral properties of HR7781
HR7781 belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.
The red dot in the diagram below shows where HR7781 is situated in the Hertzsprung–Russell diagram.
HR7781 star system properties
HR7781 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR7781 double sysyem: