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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 5:43  
clear_day Transit: 12:56  
SunsetSet: 20:10
sunny DaytimeWhat's Visible Now?
All Constellations » Vela » 


Altitude: -82.5°   Azimuth: 63.4°   Direction: East-North-East

HR4066 is a giant star in the constellation of Vela.

HR4066 visual magnitude is 5.65. Because of its reltive faintness, HR4066 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR4066 is -0.002 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR4066 star
DSS2 image of HR4066. The red arrow shows the motion of HR4066 during the next 100000 years (-3.33 arcmin in Right Ascension and 1.67 arcmin in declination);

Key facts about HR4066


HR4066 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -82.5°
Azimuth: 63.4°
Direction: East-North-East

Celestial coordinates and finder chart of HR4066

HR4066 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4066 are provided in the following table:

10h 20m 16s
-47° 41’ 57”

The simplified sky map below shows the position of HR4066 in the sky:

Finder chart HR4066 star
Simplified finder chart for HR4066.

Visibility of HR4066 from your location

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

HR4066 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR4066 from the Sun and relative movement

HR4066 is distant 2,694.21 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

826.45 pc
2,694.21 ly
16 km/s
-0.002 arcsec/year
0.001 arcsec/year

Spectral properties of HR4066

HR4066 belongs to spectral class K5 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR4066 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR4066. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4066