HR4457 is a hypergiant star in the constellation of Ursa Major.
HR4457 visual magnitude is 5.63. Because of its reltive faintness, HR4457 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 HR4457:
Celestial coordinates and finder chart of HR4457
HR4457 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 HR4457 are provided in the following table:
The simplified sky map below shows the position of HR4457 in the sky:
Visibility of HR4457 from your location
Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
HR4457 is circumpolar and transits at 23:34 UTC (altitude: 86.7°)
Digitized Sky Survey image of HR4457
The image below is a photograph of HR4457 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 HR4457 is 0.008 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 HR4457 from the Sun and relative movement
HR4457 is distant 410.58 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.
Spectral properties of HR4457
HR4457 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 HR4457 is situated in the Hertzsprung–Russell diagram.