Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]


HR4452 is a hypergiant star in the constellation of Ursa Major.

HR4452 visual magnitude is 6.4. Because of its reltive faintness, HR4452 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 HR4452:

HR4452 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 27°.

Celestial coordinates and finder chart of HR4452

HR4452 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 HR4452 are provided in the following table:

11h 33m 56s
+36° 48’ 56”
Ursa Major

The simplified sky map below shows the position of HR4452 in the sky:

Finder chart HR4452 star
Simplified finder chart for HR4452.

Visibility of HR4452 from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's HR4452 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 53.2°
Max altitude: 75.3°
Azimuth: 306.8°
HR4452 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4452

The image below is a photograph of HR4452 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 HR4452 is -0.129 arcsec per year in Right Ascension and -0.046 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4452 star
DSS2 image of HR4452. The red arrow shows the motion of HR4452 during the next 1000 years (-2.15 arcmin in Right Ascension and -0.77 arcmin in declination);

Distance of HR4452 from the Sun and relative movement

HR4452 is distant 424.48 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

130.21 pc
424.48 ly
18 km/s
-0.129 arcsec/year
-0.046 arcsec/year

Spectral properties of HR4452

HR4452 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 HR4452 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4452. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4452