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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: 7:01  
clear_day Transit: 12:12  
SunsetSet: 17:24
sleep NighttimeWhat's Visible Now?
All Constellations » Antlia » 


Altitude: -2.3°   Azimuth: 207.4°   Direction: South-South-West

HR3790 is a multiple giant star in the constellation of Antlia.

HR3790 visual magnitude is 5.87. Because of its reltive faintness, HR3790 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of HR3790 is 0.143 arcsec per year in Right Ascension and -0.177 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR3790 star
DSS2 image of HR3790. The red arrow shows the motion of HR3790 during the next 1000 years (2.38 arcmin in Right Ascension and -2.95 arcmin in declination);

Key facts about HR3790


HR3790 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -2.3°
Azimuth: 207.4°
Direction: South-South-West

Celestial coordinates and finder chart of HR3790

HR3790 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 HR3790 are provided in the following table:

09h 31m 32s
-35° 42’ 54”

The simplified sky map below shows the position of HR3790 in the sky:

Finder chart HR3790 star
Simplified finder chart for HR3790.

Visibility of HR3790 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 HR3790 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: 125.7°
Max altitude: 2.8°
Azimuth: 234.3°

Distance of HR3790 from the Sun and relative movement

HR3790 is distant 284.97 light years from the Sun and it is moving far from the Sun at the speed of 14 kilometers per second.

87.41 pc
284.97 ly
14 km/s
0.143 arcsec/year
-0.177 arcsec/year

Spectral properties of HR3790

HR3790 belongs to spectral class K4 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR3790 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3790. Attribution: Richard Powell / CC BY-SA

HR3790 star system properties

HR3790 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR3790 double sysyem:

23.6 arcsec

Alternative designations of HR3790