Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:59  
clear_day Transit: 12:48  
SunsetSet: 18:36 south
sunny DaytimeWhat's Visible Now
All Constellations » Libra » 


Altitude: 1.5°   Azimuth: 131.6°   Direction: South-East

HR5819 is a hypergiant star in the constellation of Libra.

HR5819 visual magnitude is 6.34. Because of its reltive faintness, HR5819 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 HR5819:


HR5819 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 1.5°
Azimuth: 131.6°
Direction: South-East

Celestial coordinates and finder chart of HR5819

HR5819 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 HR5819 are provided in the following table:

15h 39m 21s
-23° 09’ 01”

The simplified sky map below shows the position of HR5819 in the sky:

Finder chart HR5819 star
Simplified finder chart for HR5819.

Visibility of HR5819 from your location

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

Today's HR5819 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 113.2°
Max altitude: 15.4°
Azimuth: 246.8°

Digitized Sky Survey image of HR5819

The image below is a photograph of HR5819 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 HR5819 is -0.036 arcsec per year in Right Ascension and -0.029 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR5819 star
DSS2 image of HR5819. The red arrow shows the motion of HR5819 during the next 10000 years (-6.00 arcmin in Right Ascension and -4.83 arcmin in declination);

Distance of HR5819 from the Sun and relative movement

HR5819 is distant 305.53 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

93.72 pc
305.53 ly
-9 km/s
-0.036 arcsec/year
-0.029 arcsec/year

Spectral properties of HR5819

HR5819 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where HR5819 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR5819. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR5819