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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: 6:48  
clear_day Transit: 12:11  
SunsetSet: 17:34
sleep NighttimeWhat's Visible Now?
All Constellations » Antlia » 


Altitude: 2.0°   Azimuth: 176.2°   Direction: South

HR3972 is a giant star in the constellation of Antlia.

HR3972 visual magnitude is 6.27. Because of its reltive faintness, HR3972 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 HR3972 is -0.01 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3972 star
DSS2 image of HR3972. The red arrow shows the motion of HR3972 during the next 10000 years (-1.67 arcmin in Right Ascension and 0.50 arcmin in declination);

Key facts about HR3972


HR3972 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 2.0°
Azimuth: 176.2°
Direction: South

Celestial coordinates and finder chart of HR3972

HR3972 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 HR3972 are provided in the following table:

10h 05m 15s
-36° 23’ 02”

The simplified sky map below shows the position of HR3972 in the sky:

Finder chart HR3972 star
Simplified finder chart for HR3972.

Visibility of HR3972 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 HR3972 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: 126.4°
Max altitude: 2.1°
Azimuth: 233.6°

Distance of HR3972 from the Sun and relative movement

HR3972 is distant 421.73 light years from the Sun and it is moving far from the Sun at the speed of 28 kilometers per second.

129.37 pc
421.73 ly
28 km/s
-0.01 arcsec/year
0.003 arcsec/year

Spectral properties of HR3972

HR3972 belongs to spectral class K1 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR3972 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3972. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3972