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public LocationGreenwich, United Kingdom
Sunrise: 4:42 
Transit: 12:59 
Sunset: 21:17
wb_twilight   (Nautical Twilight)   What's Visible Now?


Below the horizon.  Never rises today
Altitude: -73.4°   Azimuth: 311.8°   Direction: North-West

HR3812 is a double hypergiant star of spectral class F0 in the constellation of Antlia.

HR3812 visual magnitude is 6.43. Because of its faintness, HR3812 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Celestial coordinates and finder chart of HR3812

Finder chart HR3812 star
Simplified finder chart for HR3812.

HR3812 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 HR3812 are provided in the following table:

09h 33m 07s
-39° 07’ 44”
Image of HR3812 star
DSS2 image of HR3812. The red arrow shows the motion of HR3812 during the next 10000 years (-4.83 arcmin in Right Ascension and 8.17 arcmin in declination);

Key facts about HR3812


and has a luminosity class of IV corresponding to a hypergiant star.


The red dot in the diagram below shows where HR3812 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3812. Attribution: Richard Powell / CC BY-SA

HR3812 star system properties

HR3812 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR3812 double sysyem:

55.2 arcsec

Distance of HR3812 from the Sun and relative movement

HR3812 is distant 237.09 light years from the Sun and it is moving far from the Sun at the speed of 25 kilometers per second.

72.73 pc
237.09 ly
25 km/s
-0.029 arcsec/year
0.049 arcsec/year

Alternative designations of HR3812


Visibility of HR3812 from your location

HR3812 is currently not visible from Greenwich, United Kingdom