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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 » 

HR3920

Altitude: -81.5°   Azimuth: 237.8°   Direction: West-South-West

HR3920 is a variable sub-giant star in the constellation of Vela.

HR3920 visual magnitude is 6.48. Because of its reltive faintness, HR3920 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 HR3920 is -0.018 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3920 star
DSS2 image of HR3920. The red arrow shows the motion of HR3920 during the next 10000 years (-3.00 arcmin in Right Ascension and 0.17 arcmin in declination);

Key facts about HR3920

6.48
Sub-giant

HR3920 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -81.5°
Azimuth: 237.8°
Direction: West-South-West

Celestial coordinates and finder chart of HR3920

HR3920 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 HR3920 are provided in the following table:

09h 52m 59s
-55° 22’ 23”
279.41°
-0.87°
Vela

The simplified sky map below shows the position of HR3920 in the sky:

Finder chart HR3920 star
Simplified finder chart for HR3920.

Visibility of HR3920 from your location

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

HR3920 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR3920 from the Sun and relative movement

HR3920 is distant 7,086.96 light years from the Sun and it is moving towards the Sun at the speed of 18 kilometers per second.

2,173.91 pc
7,086.96 ly
-18 km/s
-0.018 arcsec/year
0.001 arcsec/year

Spectral properties of HR3920

HR3920 belongs to spectral class B1 and has a luminosity class of IV corresponding to a sub-giant star.

-5.21
B1IV
12293K

The red dot in the diagram below shows where HR3920 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3920. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3920

SAO237448
SAO237448