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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: 6:40  
clear_day Transit: 12:10  
SunsetSet: 17:41
sunny DaytimeWhat's Visible Now?
All Constellations » Antlia » 


Altitude: -71.9°   Azimuth: 35.5°   Direction: North-East

HR3992 is a double main-sequence star in the constellation of Antlia.

HR3992 visual magnitude is 6.13. Because of its reltive faintness, HR3992 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 HR3992 is -0.437 arcsec per year in Right Ascension and 0.014 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR3992 star
DSS2 image of HR3992. The red arrow shows the motion of HR3992 during the next 1000 years (-7.28 arcmin in Right Ascension and 0.23 arcmin in declination);

Key facts about HR3992


HR3992 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -71.9°
Azimuth: 35.5°
Direction: North-East

Celestial coordinates and finder chart of HR3992

HR3992 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 HR3992 are provided in the following table:

10h 09m 31s
-35° 51’ 24”

The simplified sky map below shows the position of HR3992 in the sky:

Finder chart HR3992 star
Simplified finder chart for HR3992.

Visibility of HR3992 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 HR3992 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: 125.9°
Max altitude: 2.7°
Azimuth: 234.1°

Distance of HR3992 from the Sun and relative movement

HR3992 is distant 100.15 light years from the Sun and it is moving far from the Sun at the speed of 41 kilometers per second.

30.72 pc
100.15 ly
41 km/s
-0.437 arcsec/year
0.014 arcsec/year

Spectral properties of HR3992

HR3992 belongs to spectral class F8 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR3992 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3992. Attribution: Richard Powell / CC BY-SA

HR3992 star system properties

HR3992 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR3992 double sysyem:

2.3 arcsec

Alternative designations of HR3992

Gl 379.1A