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public LocationGreenwich, UK
Sunrise: 4:42 
Transit: 13:00 
Sunset: 21:18
sunny   (Daytime)   What's Visible Now?


Below the horizon.  Rise: 11:30 | Tran: 18:43 | Set: 1:59
Altitude: -22.4°   Azimuth: 18.7°   Direction: North-North-East

HR4531 is a variable and double hypergiant star of spectral class F0 in the constellation of Leo.

HR4531 visual magnitude is 5.88. Because of its faintness, HR4531 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Celestial coordinates and finder chart of HR4531

Finder chart HR4531 star
Simplified finder chart for HR4531.

HR4531 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4531 are provided in the following table:

11h 48m 38s
+14° 17’ 03”
Image of HR4531 star
DSS2 image of HR4531. The red arrow shows the motion of HR4531 during the next 1000 years (-1.78 arcmin in Right Ascension and 0.12 arcmin in declination);

Key facts about HR4531


and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where HR4531 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4531. Attribution: Richard Powell / CC BY-SA

HR4531 star system properties

HR4531 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR4531 double sysyem:

1.1 arcsec

Distance of HR4531 from the Sun and relative movement

HR4531 is distant 241.84 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

74.18 pc
241.84 ly
6 km/s
-0.107 arcsec/year
0.007 arcsec/year

Alternative designations of HR4531


Visibility of HR4531 from your location

Today's HR4531 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 75.7°
Max altitude: 52.8°
Azimuth: 284.3°