HR4072 is a variable hypergiant star in the constellation of Ursa Major.
HR4072 visual magnitude is 4.97. Because of its moderate brightness, HR4072 should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.
The table below summarizes the key facts about HR4072:
Celestial coordinates and finder chart of HR4072
HR4072 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4072 are provided in the following table:
The simplified sky map below shows the position of HR4072 in the sky:
Visibility of HR4072 from your location
Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
HR4072 is circumpolar and transits at 22:15 UTC (altitude: 75.9°)
Digitized Sky Survey image of HR4072
The image below is a photograph of HR4072 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 HR4072 is -0.008 arcsec per year in Right Ascension and -0.022 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR4072 from the Sun and relative movement
HR4072 is distant 300.74 light years from the Sun
Spectral properties of HR4072
HR4072 belongs to spectral class A0 HR4072 is also a SiSrHg chemically peculiar star.
The red dot in the diagram below shows where HR4072 is situated in the Hertzsprung–Russell diagram.