HR6645 is a double hypergiant star in the constellation of Scorpius.
HR6645 visual magnitude is 6.66. Because of its reltive faintness, HR6645 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 HR6645:
Celestial coordinates and finder chart of HR6645
HR6645 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6645 are provided in the following table:
The simplified sky map below shows the position of HR6645 in the sky:
Visibility of HR6645 from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's HR6645 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 HR6645
The image below is a photograph of HR6645 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 HR6645 is 0.002 arcsec per year in Right Ascension and -0.011 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR6645 from the Sun and relative movement
HR6645 is distant 684.87 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.
Spectral properties of HR6645
HR6645 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 HR6645 is situated in the Hertzsprung–Russell diagram.
HR6645 star system properties
HR6645 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 HR6645 double sysyem: