Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:38  ☀️ Transit: 13:03  🌅 Sunset: 19:28


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 skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR3972:

HR3972 is below the horizon from Greenwich, United Kingdom [change].

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 emisphere. 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 [change]
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 [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 126.4°
Max altitude: 2.1°
Azimuth: 233.6°
HR3972 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR3972

The image below is a photograph of HR3972 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). 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);

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 Hertzsprung–Russell diagram.

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

Alternative designations of HR3972