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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: -88.8°   Azimuth: 5.9°   Direction: North

HR3927 is a hypergiant star in the constellation of Vela.

HR3927 visual magnitude is 5.72. Because of its reltive faintness, HR3927 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 HR3927 is -0.029 arcsec per year in Right Ascension and 0.012 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3927 star
DSS2 image of HR3927. The red arrow shows the motion of HR3927 during the next 10000 years (-4.83 arcmin in Right Ascension and 2.00 arcmin in declination);

Key facts about HR3927


HR3927 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -88.8°
Azimuth: 5.9°
Direction: North

Celestial coordinates and finder chart of HR3927

HR3927 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 HR3927 are provided in the following table:

09h 54m 51s
-50° 14’ 38”

The simplified sky map below shows the position of HR3927 in the sky:

Finder chart HR3927 star
Simplified finder chart for HR3927.

Visibility of HR3927 from your location

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

HR3927 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR3927 from the Sun and relative movement

HR3927 is distant 318.98 light years from the Sun and it is moving far from the Sun at the speed of 14 kilometers per second.

97.85 pc
318.98 ly
14 km/s
-0.029 arcsec/year
0.012 arcsec/year

Spectral properties of HR3927

HR3927 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 HR3927 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3927. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3927