HR4581 is a double giant star in the constellation of Ursa Major.
HR4581 visual magnitude is 5.96. Because of its reltive faintness, HR4581 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 HR4581:
Celestial coordinates and finder chart of HR4581
HR4581 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 HR4581 are provided in the following table:
The simplified sky map below shows the position of HR4581 in the sky:
Visibility of HR4581 from your location
Today's HR4581 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 HR4581
The image below is a photograph of HR4581 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 HR4581 is 0.004 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.
Distance of HR4581 from the Sun and relative movement
HR4581 is distant 670.78 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.
Spectral properties of HR4581
HR4581 belongs to spectral class K1 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where HR4581 is situated in the Hertzsprung–Russell diagram.
HR4581 star system properties
HR4581 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR4581 double sysyem: