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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: -84.6°   Azimuth: 58.1°   Direction: East-North-East

HR3943 is a double main-sequence star in the constellation of Vela.

HR3943 visual magnitude is 6.05. Because of its reltive faintness, HR3943 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 HR3943 is -0.016 arcsec per year in Right Ascension and -0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3943 star
DSS2 image of HR3943. The red arrow shows the motion of HR3943 during the next 10000 years (-2.67 arcmin in Right Ascension and -2.50 arcmin in declination);

Key facts about HR3943


HR3943 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -84.6°
Azimuth: 58.1°
Direction: East-North-East

Celestial coordinates and finder chart of HR3943

HR3943 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 HR3943 are provided in the following table:

09h 57m 42s
-48° 24’ 51”

The simplified sky map below shows the position of HR3943 in the sky:

Finder chart HR3943 star
Simplified finder chart for HR3943.

Visibility of HR3943 from your location

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

HR3943 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR3943 from the Sun and relative movement

HR3943 is distant 3,790.70 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

1,162.79 pc
3,790.70 ly
9 km/s
-0.016 arcsec/year
-0.015 arcsec/year

Spectral properties of HR3943

HR3943 belongs to spectral class B3 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR3943 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3943. Attribution: Richard Powell / CC BY-SA

HR3943 star system properties

HR3943 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR3943 double sysyem:

14.1 arcsec

Alternative designations of HR3943