Your Guide to the Solar System and the Night Sky
Donate now! You'll help cover server costs, enhance the site and keep it ad-free.
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:47  
clear_day Transit: 12:56  
SunsetSet: 21:06 south
wb_twilight Nautical TwilightWhat's Visible Now
All Constellations » Libra » 


HR5866 is a hypergiant star in the constellation of Libra.

HR5866 visual magnitude is 6.24. Because of its reltive faintness, HR5866 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 HR5866:

HR5866 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 17°.

Celestial coordinates and finder chart of HR5866

HR5866 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 HR5866 are provided in the following table:

15h 46m 45s
-06° 07’ 13”

The simplified sky map below shows the position of HR5866 in the sky:

Finder chart HR5866 star
Simplified finder chart for HR5866.

Visibility of HR5866 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 HR5866 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: 96.1°
Max altitude: 32.4°
Azimuth: 263.9°
HR5866 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR5866

The image below is a photograph of HR5866 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 HR5866 is -0.009 arcsec per year in Right Ascension and -0.002 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR5866 star
DSS2 image of HR5866. The red arrow shows the motion of HR5866 during the next 100000 years (-15.00 arcmin in Right Ascension and -3.33 arcmin in declination);

Distance of HR5866 from the Sun and relative movement

HR5866 is distant 936.78 light years from the Sun and it is moving towards the Sun at the speed of 51 kilometers per second.

287.36 pc
936.78 ly
-51 km/s
-0.009 arcsec/year
-0.002 arcsec/year

Spectral properties of HR5866

HR5866 belongs to spectral class K0


The red dot in the diagram below shows where HR5866 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR5866. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR5866