HR6904 is a multiple hypergiant star in the constellation of Hercules.
HR6904 visual magnitude is 6.27. Because of its reltive faintness, HR6904 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 HR6904:
Celestial coordinates and finder chart of HR6904
HR6904 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 HR6904 are provided in the following table:
The simplified sky map below shows the position of HR6904 in the sky:
Visibility of HR6904 from your location
Today's HR6904 rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):
Digitized Sky Survey image of HR6904
The image below is a photograph of HR6904 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 HR6904 is 0.002 arcsec per year in Right Ascension and 0.008 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.
Distance of HR6904 from the Sun and relative movement
HR6904 is distant 387.63 light years from the Sun and it is moving towards the Sun at the speed of 29 kilometers per second.
Spectral properties of HR6904
HR6904 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.
The red dot in the diagram below shows where HR6904 is situated in the Hertzsprung–Russell diagram.
HR6904 star system properties
HR6904 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR6904 double sysyem: